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Product Line Review
 Five Family Groups
◦ Panel-mount models
◦ Individual equipment protection models
◦ Dedicated load circuit protection mod...
 ST-RSE line – 4 mode – no tracking
 RM line – 7 mode- frequency attenuation- 20 –
40 - 60 ka per phase
 LA line – 10 m...
 Application:
◦ 200 amp Sub-Panels
◦ Low Exposure Areas
◦ Individual Equipment
 Peak Surge Current Per
Mode:
◦ 20 kA
 4...
 Application:
◦ Sub-Panels
◦ Low Exposure Areas
◦ Individual Equipment
 Peak Surge Current Per
Phase:
◦ 40, 80 & 120 kA
...
 3 or 4 Mode
 Frequency Attenuation
 Thermal/Current Fused
 Compact
 Up to 250 Amps
Great for small VFD,
Power Suppli...
 Applications
◦ Main Service Entrance
Panels
◦ Medium and High
Exposure
◦ Panels up to 2500 Amps
 Ten mode – current and...
 Applications
◦ Main Panels, sub-
panels
◦ Individual
equipment
◦ Medium to high
exposure
◦ Locations up to
5,000 Amps
 ...
 Determines two aspects of the design of the
product
◦ Peak surge current
◦ Sine wave tracking (SWT) or not
 SWT is desi...
 Reflects the nominal system voltage of
the system to which the SPD will be
applied
 No dashes between the base model an...
 Reflect the various options that one might
utilize for a particular application.
 The key to properly providing option
...
 Basic application
 Not intended to set limits
 Only general examples
 C62.72TM-2007 - IEEE Guide for the
Application ...
 General construction
 Parallel or series
 SWT or not
 Encapsulation is described here
 General method of fusing
 Ge...
 Selecting PSC can be challenging
 Lightning – 10,000 amps up to 200,000 amps
or more
 Very much controversy amongst th...
 From C62.72TM-2007:
◦ Most lightning strikes - range of 10 kA to 40 kA
◦ Median value - 15 kA to 20 kA
◦ Only 6% of the ...
 Controversial area of discussion
 Opinions vary greatly on this issue
 Currents measured in most studies are that
of l...
 The Ten-to-One Rule of Thumb:
◦ Ten-to-one ratio between the service size and the
peak surge current per mode of the SPD...
 Lightning is lightning - whether in Florida
or North Dakota
 Lightning in either area can carry the same
levels of curr...
 Per mode rating = combined rating of the
suppression components used in that mode
 For example, an ST-SMLA model has fi...
 Per phase rating = the combination of the
three modes connected to that phase – phase
to neutral, phase to ground and ph...
 Some SPD manufacturers only consider the
phase to neutral and phase to ground modes
when calculating the “per phase” pea...
Base Model PSC per mode PSC per phase*
ST-SSLA/ST-CSLA 30 kA 90 kA
ST-SKLA/ST-CKLA 40 kA 120 kA
ST-SDLA/ST-CDLA 60 kA 180 ...
 Important to match the product to the
application
 Be sure you know what you are looking at
 NEC 2005 – Only SPDs list...
Voltage
Code
Nominal System
Voltage (Vrms)
System Type and Conductor
Counts
1P1 120
Single Phase, One Phase, Neutral And
G...
3Y1 120/208
Wye, Three Phases, Neutral and
Ground
3Y2 277/480
Wye, Three Phases, Neutral and
Ground
3Y2 220/380
Wye, Three...
3N1 120
Delta (no neutral), Three
Phases and Ground
3N2 240
Delta (no neutral), Three
Phases and Ground
3N3 380
Delta (no ...
2N1 120
Delta (no neutral), Two
Phases and Ground
2N2 240
Delta (no neutral), Two
Phases and Ground
2N3 380
Delta (no neut...
 Single phase systems
◦ Important to note whether the system is truly two
phases and ground or phase, neutral and ground
...
 Wye System – Modes available
WYE SYSTEM
Available Modes of Protection
Phase A
Neutral
Phase B
Phase C
Ground
1
2
3
4
5
6...
 The LA and Advantage models = Ten mode
(or discrete all mode) design
 Direct mode of protection for each available
mode...
Sine Wave Tracking
DOES NOT
track the sine wave.
 The phrase sine wave tracking is:
◦ A very good description of the result of the
action of the sine wave tracking circui...
 A low-pass filter designed with a particular
spectrum of frequencies which it is
intended to attenuate
 The components ...
 Standard clamping models only react to
an over voltage event
 Sine wave tracking models react to an
over voltage event ...
 Standard clamping versus SWT
 SWT does not have a clamping level
 The figure is correct in that what is shown
is the general result of sine wave trac...
 Cautions: Harmonics
◦ SWT is somewhat immune to overvoltage
◦ Not immune to “over-frequency”
◦ Harmonics created “over-f...
 Cautions: Drives
◦ Drives create harmonics on the load and line side
◦ It is not recommended to use SWT on the load side...
 Cautions: Capacitor Banks
◦ Resonant conditions can occur due to the
interaction of the SWT circuitry, the capacitance o...
 Two types of fusing utilized
◦ Component level, thermal fusing
◦ Phase level, fault current fusing
 Takes the SPD offli...
 Component Level Fusing
◦ Separates the RM, LA. ST models from previous
product families
◦ Activated during (relatively) ...
 Component Level Fusing
◦ Exercised during the UL 1449 low-current induced
failure tests
◦ Failure is evaluated for safet...
 Phase Level Fusing
◦ Separates our unit from previous product families
by how it is accomplished
◦ Activated during low ...
 The SineTamer break-through
◦ Allows for a much smaller package
◦ Fusing option can be incorporated into standard
size e...
 The SineTamer break-
through
◦ Patent-pending construction
method that allows for
reduction in lead length and
impedance...
 Defined (from IEEE Standard C62.41.1-2002)
as “the maximum magnitude of voltage that
is measured across the terminals of...
 MLVs provide a “snap-shot” of the
performance of an SPD
 Be careful to be sure that all things are equal
when using MLV...
 Key ECS test specifications
◦ All voltages reported are peak voltages
◦ All voltages reported are from the peak of the
s...
 Key ECS test specifications
◦ The sampling rate of the oscilloscope is a
minimum of 250 Megasamples per second (250
mill...
 Represents
switching surges
that exist in the
electrical system
environment
 Characteristic
frequency around
100 kHz
 ...
 Very frequent in occurrence
 Less notable than lightning
 Not visible like lightning
 Not always immediately recogniz...
 Contactors, relays or breakers
 Switching of capacitor banks
 Stored energy systems
 Discharge of inductive devices
...
 Arcing faults and arcing ground faults
 Fault clearing
 Power system recovery
 Loose connections
 Lightning induced ...
 Indicates that highest voltage for which the
SPD can properly operate for a particular
mode
 Particularly important whe...
 Our products generally have MCOVs that are
15-25% higher than the nominal system
voltage
 Allows for normal and some ab...
 MCOV has direct impact on the MLVs
 Generally, the higher the MCOV, the higher
the MLV will be
 With careful design co...
 LEDs only
◦ One green LED per phase
◦ Normally on
◦ Sense the status of the protection circuit
◦ Sense the presence of p...
 C – Dry Relay Contacts
◦ Normally open (NO) and normally closed (NC)
contacts
◦ Do not share a common terminal
◦ Can bot...
 AC – Audible Alarm
◦ Contains a 110 dB, pulsed siren
◦ A blinking red “trouble” LED
◦ One green LED per phase
◦ Powered ...
 LP – Remote LED Option
◦ External LEDs housed in individual, round NEMA
4X holders
◦ Mounted remotely from the SPD and t...
 R1 – Remote LED/DRC board – no enclosure
◦ Used when the suppressor is mounted internal to
a panel or gear
◦ The board i...
 S – Surge Counter
◦ Features an 8-digit LCD display (counts to
99,999,999 and then starts over)
◦ 10 year battery
◦ Manu...
 Surge Counter Notes:
◦ The paper includes some cautions when selling
surge counters (does not count enough, counts too
m...
 Application:
◦ Individual Equipment
◦ Individual Circuits
 Peak Surge Current:
◦ 60 kA Total
 Units for both Frequency...
 Different type of data circuits
 Where they are found
 Applicable TVSS units
 Why they are selected
 How to properly...
◦ Where data is passed between buildings on a
facility (e.g., production management)
◦ Where data is sent from an operatin...
 Common data circuits
 4-20 mA
 Ethernet
 Frame relay
 RS-232
 Telephone
 Signal voltage level
◦ Number of wires used
◦ Data rate
◦ Connector type
◦ Circuit resistance
 2 to 4 wires
 Signal voltage < 12 Vdc
 Data rate 2 Mbps or less
Which unit to use on a 12 volt circuit?
< 160 V
< 160 V
< 280 V
L-G
L-L
Shield-G
500 mA
140 V
140 V
70 V
S-D140-x
< 80 V
<...
 Found on long data line runs (> 75 feet)
 Problem: Normal DC signal voltage plus
induced AC voltage may exceed the
clam...
Rated Voltage MCOV
5 7.5
12 & 15 15
24 & 33 36
48 & 53 54
140 140
Now, which unit to use on a 12 volt circuit?
< 160 V
< 160 V
< 280 V
L-G
L-L
Shield-G
500 mA
140 V
140 V
70 V
S-D140-x
< 8...
 5 - 7 Volts DC is common
 Normally use TVSS rated at 36
VDC MCOV. Why?
 But -- always ask about the
signal voltage!
 ...
2 Mbps
10 Mbps
100 Mbps
Data rate has little impact on price.
However, due to technology
constraints in order to achieve h...
Wire clamping box terminals
RJ receptacles
Punch Down Block
Wire clamping box terminals,
2 - 6 wires
RJ receptacles (female)
2 - 4 pins or all 8 pins protected
Punch Down Block (22 –...
You can order RJ TVSS units with
the following pin configurations:
• Standard Pins (1, 2, 3, & 6)
• Specify any four pins
...
Solution:
1.Use TVSS with wire clamping
box terminals, or
2.Have client determine pins used
& provide data to you
Protect ...
Protect yourself - tell your client about
circuit resistance to determine if it will be a
problem
The number of SPDs you c...
Recommended TVSS
After determining data rate, signal voltage, and
number of wires, choose:
◦ Any data TVSS with wire clamp...
RJ Connection
1.6787"
6.603" 1.031"
2.339"
6.758"
7.257"
ST-SDLA1S1-FX
ST-SPT24-AC-15 ST-D15-12 (obs) ST-COAX-BNC-HP
ST-RJ45-33-100M
It is important to note that these suggestions are exactly that
– they are suggestions only. TVSS applications are an art ...
 Begin with the most critical and sensitive
equipment. Isolate that equipment from the
electrical environment by selectin...
 The Ten-to-One Rule of Thumb:
◦ Ten-to-one ratio between the service size and the
peak surge current per mode of the SPD...
Base Model PSC per mode PSC per phase*
ST-SSLA/ST-CSLA 30 kA 90 kA
ST-SKLA/ST-CKLA 40 kA 120 kA
ST-SDLA/ST-CDLA 60 kA 180 ...
Step 3A
Step 3B
No
Find Meter
Gather Info
Move inside
Locate main switch gear
Confirm volts & amps
No Yes
One
Switch
Locat...
a
b c
i
j k l m n o p q
d e f g h r
s
t
u
a
b c
i
j k l m n o p q
d e f g h r
s
t
u
SPD
SPD
SPD
SPD
SPD
SPD
SPD
To dish
Air Conditioner
120/240
1 Phase
200 A
Telephone Lines
Telephone
KSU
Modem
Security
System
VCR
Satellite
Controller...
To dish
Air Conditioner
120/240
1 Phase
200 A
Telephone Lines
Telephone
KSU
Modem
Security
System
VCR
Satellite
Controller...
120/208
2 Phase
200 A
copier Coffee
Pot
Process
PC
Printer
Input
120 V
13 A
Common
Ground
Security
System
Telephone
KSU
Co...
120/208
2 Phase
200 A
copier Coffee
Pot
Process
PC
Printer
Input
120 V
13 A
Common
Ground
Security
System
Telephone
KSU
Co...
Mini
Computer
Modem
Telephone
KSU
Input
Security
System
Checkout
Register
RS 232 Register
Connections
Lighting
Step Down
T...
LV
Mini
Computer
Modem
Telephone
KSU
Input
Security
System
Checkout
Register
RS 232 Register
Connections
Lighting
Step Dow...
480 V
3
Phase
3000
A
Amenities
Apartments &
Condominiums
Professional
Offices
Restaurants
&
Snack Bars
Dry Cleaners
& Laun...
Amenities
Apartments &
Condominiums
Professional
Offices
Restaurants &
Snack Bars
Dry Cleaners
& Laundry
Panel 1
120/208 V...
Step Down
Transformer
Input
Process
PC
Printer
VFD
VFD
VFD
Arc
Welder
Special
Building
Controller
CNC
Control
CPU
CNC
Mach...
Step Down
Transformer
Input
Process
PC
Printer
VFD
VFD
VFD
Arc
Welder
Special
Building
Controller
CNC
Control
CPU
CNC
Mach...
o
a
b
j
p
q
g
r
i
h
d
e f
m
n
l
k
c
a
b
j
o
p
q
g
r
i
h
d
e f
m
n
l
k
c
SPD
SPDSPD
o
a
b
j
p
q
g
r
i
h
d
e f
m
n
l
k
c
Note: Multiple SPD/TVSS applications(s) on very long section of mains switc...
DIST PANEL
HVAC
LIGHTING
Panel A 3 ph
277/480 2200
Amp MCB
Panel B 3 ph
277/480 1600
Amp MCB
Panel C 3 ph
277/480 1400
Amp...
 Panel A – Main Panel 2200 Amps, 277/480
volts
◦ Recommend ST-LSEA3Y2. Why? Main service, 10:1
rule = 220ka per phase min...
DIST PANEL
HVAC
LIGHTING
Panel A 3 ph
277/480 3000
Amp MCB
Panel B 3 ph
277/480 1600
Amp MCB
Panel C 3 ph
277/480 1400
Amp...
 Panels D, E and F – sub distribution panel,
feeding sensitive equipment 225 Amps, 120/208
volts
◦ Recommend LA-ST603Y1C?...
DIST PANEL
HVAC
LIGHTING
Panel A 3 ph
277/480 3000
Amp MCB
Panel B 3 ph
277/480 1600
Amp MCB
Panel C 3 ph
277/480 1400
Amp...
Company Confidential
5 Telephone Lines and
2 – 24vdc 4/20 mA Circuits
Secondary Panel
1200 amps
120/208 wye
Service Entran...
Company Confidential
ST-PDB5 & ST-CLMF24-4
Secondary Panel
1200 amps
LA-ST120-3Y1C
Service Entrance
2400 Amps
ST-LSEA3Y2
C...
Company Confidential
Service Entrance
800 amps 120/208Secondary Panel
120/208 400 amps
Critical Point of Purchase
(Cash Re...
Company Confidential
Service Entrance
LA-ST120-3Y1CSecondary Panel
LA-ST60-3Y1C
ST-SPT120-15
RM-ST403N4
ST-SPT240-15
ServoMotors – 10-25HP Drives
30 HP Motors
ST-RSE3N4
RM-ST120-3N4
ST-SPT240-15
RM-ST403N4
ST-SPT24DC-15
RM-ST60-3N4
ST-SPT24DC-15
ST-SPT24DC-15
ST-SPT240-15
ST-SPT120-15
Company Confidential
Datacom for
external signal
line
Utility Service
12.47kV
480V
ST-Advantage
Main
Distribution
Panel
AF...
PLC’s (AC and or DC) – ST-SPT120(240)-15 or
appropriate DC voltage. Or you can use the parallel
unit – ST-SP120(240)-P
Fir...
General Recommendations
 Traffic Lights: combination unit –
ST-SPT120-15-RJ
 Slot Machines / Tragamonedas: 3 phase
panel...
UPS systems – Single phase – typically 1kva up to
3kva. ST-SPT120(240)-P 120 or 240 volt installed in
parallel. Single pha...
General Recommendations
For VFD’s in High Lightning or Oil Field applications:
Level 1 - ST-SMLA3N4
Level 2 – RM-ST180-3N4...
 Motor
 1P 240 VAC 1½ HP
 10 A
 Inside application
 Very tight quarters
ST-FSPT-240-15
ST-FSP-240-P
 Variable frequency drive
 50 HP, 460NN
 65 A
 Indoor application
• ST-RSE3N4
• RM-ST40-3N4
 Gas Pump
 120 VAC
 20 A
 RJ45 Ethernet Communication
• ST-SPT120-30-RJ45
• ST-ICPS120-20 + ST-RJ45-24-Cat5E
 Pump Motor in Rock Mine
 4160 VAC Delta
 200 A
• ST-LSEA-MV3N4160
 Pick and Place Machine for PCB Assembly
 120/208 Wye
 40 A
• RM-ST403Y1
• LA-ST603Y1C
 OEM Application for Drink Machines
 120 V 1P
 15 A
• ST-SPT120-15
• ST-FSPT120-15
• ST-L120-P-1L
 Automated Checkout and Laser Scanner
at large department store.
 120 V, 1P
 15 A
 RJ45 Ethernet communication
• ST-SP...
 Water Pump for a large nursery
 15 HP
 120/208 V Wye
 46 A
 Outdoor Application
• RM-ST603Y1
 Control Servos (multiple)
 DIN rail mount (need small footprint)
 48 VDC
 1 A
• ST-ICPS-48DC-3-DIN
• ST-ICPF-48DC-3-D...
 New construction in factory
 Multiple Variable Frequency Drives (24 units –
4 circuits )
 480 VAC 3PH DELTA
 75 A
• L...
 MRI Machine in Hospital
 120/208 V Wye
 200 A
 Need very tight clamping
• ST-CKLA3Y1 (Best)
• LA-ST60-3Y1C (Better)
•...
 Cell Shelter
 1Ph 120/240
 150 amps
• Level 1 – RM-ST180-1S1
• Level 2 - RM-ST60-1S1
 Ball Park Lighting
 480 V Delta
 40 A
 Multiple circuits plus parking lot
lighting
• Circuit Board - RM-ST403N4
• Par...
 Coal Conveyer Belt Drive for power
plant
 50 HP
 480 V Delta
 65 A
 Outside, corrosive environment
• RM-ST120-3N4W
Remember… this is not an exact
science, it is an art-form, and the only
wrong answer is the wrong voltage.
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SineTamer TVSS

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  1. 1. Product Line Review
  2. 2.  Five Family Groups ◦ Panel-mount models ◦ Individual equipment protection models ◦ Dedicated load circuit protection models ◦ Data models ◦ Telecommunication models
  3. 3.  ST-RSE line – 4 mode – no tracking  RM line – 7 mode- frequency attenuation- 20 – 40 - 60 ka per phase  LA line – 10 mode – frequency attenuation-  ST line – True all mode – Optimal Response & Optimal frequency attenuation
  4. 4.  Application: ◦ 200 amp Sub-Panels ◦ Low Exposure Areas ◦ Individual Equipment  Peak Surge Current Per Mode: ◦ 20 kA  4 mode, No frequency attenuation, thermal and current fuses.  ST-RSE3Y1 ST-RSE3Y2 ST-RSE3N2 ST-RSE3N4
  5. 5.  Application: ◦ Sub-Panels ◦ Low Exposure Areas ◦ Individual Equipment  Peak Surge Current Per Phase: ◦ 40, 80 & 120 kA RM-ST60, RM-ST80, RM-ST120 1P1, 1P2, 1S1, 3Y1, 3Y2, 3N2, 3N4 RM-ST40 3Y1, 3Y2, 3N2, 3N4 Small Drives or Panels up to 250 amps Frequency Attenuation Component/Current Fusing No options
  6. 6.  3 or 4 Mode  Frequency Attenuation  Thermal/Current Fused  Compact  Up to 250 Amps Great for small VFD, Power Supplies, Rectifiers.
  7. 7.  Applications ◦ Main Service Entrance Panels ◦ Medium and High Exposure ◦ Panels up to 2500 Amps  Ten mode – current and thermal fusing, Frequency tracking, various options.  Ka Ratings per phase ◦ 60 kA ◦ 120 kA ◦ 180 kA ◦ 240 kA ◦ 300 kA LA-ST60 / LA-ST120 / LA-ST180 LA-ST240 / LA-ST300 1P1, 1P2, 1S1, 3Y1, 3Y2, 3N2, 3N4, 3N6
  8. 8.  Applications ◦ Main Panels, sub- panels ◦ Individual equipment ◦ Medium to high exposure ◦ Locations up to 5,000 Amps  Peak Surge Current Per phase ◦ 90 kA ◦ 120 kA ◦ 180 kA ◦ 240 kA ◦ 300 kA ◦ 420 kA ◦ 600 kA ◦ 720 kA ◦ 900 kA  ST-S(C)SLA, ST-S(C)KLA, ST-S(C)DLA, ST-L(C)SEA, ST-S(C)MLA, ST-S(C)ILA, ST-S(C)HLA, ST-S(C)HDLA, ST-S(C)MDLA ST-S(C)XDLA
  9. 9.  Determines two aspects of the design of the product ◦ Peak surge current ◦ Sine wave tracking (SWT) or not  SWT is designated by a base model beginning with “C”  RES models indicate SWT by adding an “S” after “RES”, or “RESS”.
  10. 10.  Reflects the nominal system voltage of the system to which the SPD will be applied  No dashes between the base model and the voltage code on the Advantage ST units.
  11. 11.  Reflect the various options that one might utilize for a particular application.  The key to properly providing option codes is to place them in alphabetical order with no dashes or spaces.
  12. 12.  Basic application  Not intended to set limits  Only general examples  C62.72TM-2007 - IEEE Guide for the Application of Surge-Protective Devices for Low-Voltage (1000 Volts or Less) AC Power Circuits
  13. 13.  General construction  Parallel or series  SWT or not  Encapsulation is described here  General method of fusing  General description of the modes of protection
  14. 14.  Selecting PSC can be challenging  Lightning – 10,000 amps up to 200,000 amps or more  Very much controversy amongst the experts as to how much peak surge current is too much, adequate or not sufficient
  15. 15.  From C62.72TM-2007: ◦ Most lightning strikes - range of 10 kA to 40 kA ◦ Median value - 15 kA to 20 kA ◦ Only 6% of the currents were above 60 kA ◦ Less than 2% of the currents were above 100 kA
  16. 16.  Controversial area of discussion  Opinions vary greatly on this issue  Currents measured in most studies are that of lightning NOT the amount of surge current that can actually enter in the building electrical system  These values can be vastly different (lower)
  17. 17.  The Ten-to-One Rule of Thumb: ◦ Ten-to-one ratio between the service size and the peak surge current per mode of the SPD – as a starting point ◦ One must consider the expected exposure of the installation location (even if the panel is internal to the facility – the loads may not be)
  18. 18.  Lightning is lightning - whether in Florida or North Dakota  Lightning in either area can carry the same levels of current  In fact, northern latitudes are more statistically prone to “positive” lightning which is understood to be much higher in surge current  However, the rate of occurrence of lightning in Florida is much, much greater than that of many northern regions
  19. 19.  Per mode rating = combined rating of the suppression components used in that mode  For example, an ST-SMLA model has five components in parallel that are rated at 20 kA each; thus, the peak surge current per mode for an ST-SMLA is 5 x 20 kA or 100 kA
  20. 20.  Per phase rating = the combination of the three modes connected to that phase – phase to neutral, phase to ground and phase to phase  For example, the peak surge current per phase of an ST-SMLA model is 100 kA per mode x 3 modes or 300 kA per phase
  21. 21.  Some SPD manufacturers only consider the phase to neutral and phase to ground modes when calculating the “per phase” peak surge current  There is no standard that provides a method for determining this value  Often manufacturers that use this calculation method do not have direct phase to phase components
  22. 22. Base Model PSC per mode PSC per phase* ST-SSLA/ST-CSLA 30 kA 90 kA ST-SKLA/ST-CKLA 40 kA 120 kA ST-SDLA/ST-CDLA 60 kA 180 kA ST-LSEA/ST-CSEA 80 kA 240 kA ST-SMLA/ST-CMLA 100 kA 300 kA LA-ST60 20 Ka 60 Ka LA-120 40 Ka 120 Ka RM-ST60 20 kA 40 kA RM-ST120 40 kA 80 kA RM-ST180 60 kA 120 kA ST-RSE 20 kA 20 kA ST-RES/ST-RESS 40 kA 120 kA
  23. 23.  Important to match the product to the application  Be sure you know what you are looking at  NEC 2005 – Only SPDs listed for use on a Delta system are allowed on Delta systems (L-G MCOV is the same or higher than the L-L MCOV)
  24. 24. Voltage Code Nominal System Voltage (Vrms) System Type and Conductor Counts 1P1 120 Single Phase, One Phase, Neutral And Ground 1P2 240 Single Phase, One Phase, Neutral And Ground 1P3 380 Single Phase, One Phase, Neutral And Ground 1P4 480 Single Phase, One Phase, Neutral And Ground 1P6 600 Single Phase, One Phase, Neutral And Ground 1S1 120/240 Split Phase, Two Phases, Neutral And Ground 1S2 240/480 Split Phase, Two Phases, Neutral And Ground
  25. 25. 3Y1 120/208 Wye, Three Phases, Neutral and Ground 3Y2 277/480 Wye, Three Phases, Neutral and Ground 3Y2 220/380 Wye, Three Phases, Neutral and Ground 3Y2 230/400 Wye, Three Phases, Neutral and Ground 3Y2 240/415 Wye, Three Phases, Neutral and Ground 3Y3 347/600 Wye, Three Phases, Neutral and Ground
  26. 26. 3N1 120 Delta (no neutral), Three Phases and Ground 3N2 240 Delta (no neutral), Three Phases and Ground 3N3 380 Delta (no neutral), Three Phases and Ground 3N4 480 Delta (no neutral), Three Phases and Ground 3N6 600 Delta (no neutral), Three Phases and Ground
  27. 27. 2N1 120 Delta (no neutral), Two Phases and Ground 2N2 240 Delta (no neutral), Two Phases and Ground 2N3 380 Delta (no neutral), Two Phases and Ground 2N4 480 Delta (no neutral), Two Phases and Ground 2N6 600 Delta (no neutral), Two Phases and Ground
  28. 28.  Single phase systems ◦ Important to note whether the system is truly two phases and ground or phase, neutral and ground ◦ The SPDs are only fused on the phases (not the neutral) ◦ Determine the source of the single phase
  29. 29.  Wye System – Modes available WYE SYSTEM Available Modes of Protection Phase A Neutral Phase B Phase C Ground 1 2 3 4 5 6 7 8 9 10 1 - Phase A to N 2 - Phase B to N 3 - Phase C to N 4 - Phase A to G 5 - Phase B to G 6 - Phase C to G 7 - Neutral to Gr 8 - Phase A to P 9 - Phase A to P 10 - Phase B to
  30. 30.  The LA and Advantage models = Ten mode (or discrete all mode) design  Direct mode of protection for each available mode  Does not rely upon components intended for the protection of other modes  See the white paper: Modes of Protection within Electrical Systems for Application of Surge Suppression
  31. 31. Sine Wave Tracking DOES NOT track the sine wave.
  32. 32.  The phrase sine wave tracking is: ◦ A very good description of the result of the action of the sine wave tracking circuitry ◦ A marketing phrase or quasi-scientific jargon used to describe a specialized filter circuit ◦ Intended to mitigate the effects of switching or ringing surges
  33. 33.  A low-pass filter designed with a particular spectrum of frequencies which it is intended to attenuate  The components of the SWT circuitry are especially selected so that they can survive the surge environment without failure due to the surge itself
  34. 34.  Standard clamping models only react to an over voltage event  Sine wave tracking models react to an over voltage event and to a change in frequency  A change in frequency occurs when the voltage of the surge digresses from the normal voltage and frequency of the sine wave
  35. 35.  Standard clamping versus SWT
  36. 36.  SWT does not have a clamping level  The figure is correct in that what is shown is the general result of sine wave tracking  Provides an easily understandable comparison to non-SWT models  However, it should be stated, when appropriate, that this is not how SWT truly works  SWT reacts to a change in frequency created by the surge  SWT operates independent of the voltage.
  37. 37.  Cautions: Harmonics ◦ SWT is somewhat immune to overvoltage ◦ Not immune to “over-frequency” ◦ Harmonics created “over-frequency” ◦ SWT tries to attenuate (conducts) the higher frequencies ◦ Rule of Thumb: Less than 15% Total Harmonic Distortion (THD)
  38. 38.  Cautions: Drives ◦ Drives create harmonics on the load and line side ◦ It is not recommended to use SWT on the load side ◦ SWT is recommended for the low-voltage controller
  39. 39.  Cautions: Capacitor Banks ◦ Resonant conditions can occur due to the interaction of the SWT circuitry, the capacitance of the capacitor bank and the inductance/impedance of the system between the two ◦ Very difficult to predict when this will happen ◦ Use standard clamping models in this situation
  40. 40.  Two types of fusing utilized ◦ Component level, thermal fusing ◦ Phase level, fault current fusing  Takes the SPD offline in the event of a failure
  41. 41.  Component Level Fusing ◦ Separates the RM, LA. ST models from previous product families ◦ Activated during (relatively) high impedance, low fault current conditions ◦ MOVs dissipate power during this event ◦ Thermal fusing reacts to the heat and opens ◦ Mitigates the effects of thermal runaway
  42. 42.  Component Level Fusing ◦ Exercised during the UL 1449 low-current induced failure tests ◦ Failure is evaluated for safety (cheesecloth, tissue paper) ◦ Currents for this test are limited to 10, 5, 2.5 and 0.5 amps
  43. 43.  Phase Level Fusing ◦ Separates our unit from previous product families by how it is accomplished ◦ Activated during low impedance, high fault current conditions ◦ Interrupts the flow of follow current ◦ Prevents the tremendous power dissipation that can occur when an MOV fails with little or no current limit
  44. 44.  The SineTamer break-through ◦ Allows for a much smaller package ◦ Fusing option can be incorporated into standard size enclosures ◦ Reduces internal lead length ◦ Reduces external lead length due to the small overall package size and ease of installation
  45. 45.  The SineTamer break- through ◦ Patent-pending construction method that allows for reduction in lead length and impedance that improves performance ◦ Completely insulated on the load and line side ◦ Prevents line side failures due to arcing that occur when the MOVs out-gas
  46. 46.  Defined (from IEEE Standard C62.41.1-2002) as “the maximum magnitude of voltage that is measured across the terminals of the surge-protective device (SPD) during the application of a series of impulses of specified wave shape and amplitude.”  Synonymous with “Let-Through Voltage”
  47. 47.  MLVs provide a “snap-shot” of the performance of an SPD  Be careful to be sure that all things are equal when using MLVs to make comparisons amongst SPDs  MLVs are highly dependent on the test setup, equipment used and measurement method
  48. 48.  Key ECS test specifications ◦ All voltages reported are peak voltages ◦ All voltages reported are from the peak of the sine-wave to the peak of the surge (as opposed to measuring from the zero crossing point of the sine-wave) ◦ The voltages reported for a particular mode are the average of each of the three phases for that mode and the average of ten shots for each mode (except for N-G, of course) ◦ The oscilloscope time base used for measurement is 10 – 20 microseconds per division
  49. 49.  Key ECS test specifications ◦ The sampling rate of the oscilloscope is a minimum of 250 Megasamples per second (250 million data points per second) ◦ The surge generator is calibrated to the IEEE standards ◦ The oscilloscope is calibrated and has traceable calibration records ◦ The surge generator peak voltages and currents are calibrated at the ends of the leads needed to connect the generator to the SPD ◦ All SPDs are tested with six inches of lead length extending from the outside wall/conduit of the enclosure to simulate actual installation
  50. 50.  Represents switching surges that exist in the electrical system environment  Characteristic frequency around 100 kHz  SWT is intended to mitigate these surges
  51. 51.  Very frequent in occurrence  Less notable than lightning  Not visible like lightning  Not always immediately recognized as being damaging or disruptive to electrical circuits  Occur as part of every-day normal, intended operations  Occur as part of abnormal, unintentional operations
  52. 52.  Contactors, relays or breakers  Switching of capacitor banks  Stored energy systems  Discharge of inductive devices  Starting and stopping of loads  Fault or arc initiation  Pulsed power loads
  53. 53.  Arcing faults and arcing ground faults  Fault clearing  Power system recovery  Loose connections  Lightning induced oscillatory surges
  54. 54.  Indicates that highest voltage for which the SPD can properly operate for a particular mode  Particularly important when determining the voltage code of the SPD  indicates the level of “head-room” provided between the nominal system voltage and the actual maximum allowable voltage for the SPD
  55. 55.  Our products generally have MCOVs that are 15-25% higher than the nominal system voltage  Allows for normal and some abnormal overvoltages to occur with causing failure of the SPD  MCOVs that are too low can create scenarios where SPDs fail due to what the utility considers normal fluctuations
  56. 56.  MCOV has direct impact on the MLVs  Generally, the higher the MCOV, the higher the MLV will be  With careful design considerations, the MCOV can be raised to an acceptable level without having significant impact on the performance of the SPD
  57. 57.  LEDs only ◦ One green LED per phase ◦ Normally on ◦ Sense the status of the protection circuit ◦ Sense the presence of power from the electrical system
  58. 58.  C – Dry Relay Contacts ◦ Normally open (NO) and normally closed (NC) contacts ◦ Do not share a common terminal ◦ Can both be used or can be used independent of one another ◦ Change state when either the internal or external over-current device opens or when power is lost to the SPD ◦ Can be used in combination with existing monitoring systems ◦ No voltage supplied to the contacts by the SPD; thus, the terminology “dry” or “volt-free”
  59. 59.  AC – Audible Alarm ◦ Contains a 110 dB, pulsed siren ◦ A blinking red “trouble” LED ◦ One green LED per phase ◦ Powered by a long-life lithium based 9V battery with a ten- year shelf life ◦ Siren to operate continuously for a minimum of 72 hours ◦ Red, “trouble” LED to operate continuously for a minimum of 144 hours ◦ Senses the status of the normally open dry relay contact (with power applied) ◦ Equipped with a mute switch and test button ◦ Siren has a duty cycle on the sound output
  60. 60.  LP – Remote LED Option ◦ External LEDs housed in individual, round NEMA 4X holders ◦ Mounted remotely from the SPD and the LEDs are located so that they can be viewed externally ◦ “Daylight bright” and can be viewed in bright sunshine ◦ Provided with six feet of wire for each LED ◦ Drill template for properly locating the LEDs ◦ Overlay that can be applied to the surface to which the LEDs are mounted
  61. 61.  R1 – Remote LED/DRC board – no enclosure ◦ Used when the suppressor is mounted internal to a panel or gear ◦ The board is mounted on the backside of an external wall of the panel/gear enclosure ◦ LEDs are allowed to shine through the enclosure to the overlay ◦ Provided with six feet of wire external to the suppressor for connecting the LED/DRC board ◦ Used in combination with the LEDs only or DRC option
  62. 62.  S – Surge Counter ◦ Features an 8-digit LCD display (counts to 99,999,999 and then starts over) ◦ 10 year battery ◦ Manual reset switch ◦ Reset-disable jumper ◦ Provisions for NEMA 4 and NEMA 4X locations ◦ Sensitivity of the surge counter is such that it will count surges that are at the A1 ring-wave level ◦ Sensing circuit is current-based rather than voltage-based ◦ Only counts surges that the unit has acted upon by detecting surge current flowing into the SPD
  63. 63.  Surge Counter Notes: ◦ The paper includes some cautions when selling surge counters (does not count enough, counts too much, etc.) ◦ See Success with Surge Counters! [Hotchkiss] and Surge Counter Case Study Update [Fussell]
  64. 64.  Application: ◦ Individual Equipment ◦ Individual Circuits  Peak Surge Current: ◦ 60 kA Total  Units for both Frequency Attenuating and Non.  Available in DC and AC up to 480.  Terminal Strip for 15, 30 and 60 Amps.  Wired and Parallel versions  Variety of Options –Din, RJ, Video, Coax ST-SPTxxx-y * *Examples ST-SPT120-15, ST-SPT480-15, ST-SPT48DC-30, ST-FSPT120-15
  65. 65.  Different type of data circuits  Where they are found  Applicable TVSS units  Why they are selected  How to properly select a unit
  66. 66. ◦ Where data is passed between buildings on a facility (e.g., production management) ◦ Where data is sent from an operating piece of equipment to an operations control center (e.g., cement plants & water treatment plants) ◦ Where data is sent between operating machines within a building (e.g. synchronization)
  67. 67.  Common data circuits  4-20 mA  Ethernet  Frame relay  RS-232  Telephone
  68. 68.  Signal voltage level ◦ Number of wires used ◦ Data rate ◦ Connector type ◦ Circuit resistance
  69. 69.  2 to 4 wires  Signal voltage < 12 Vdc  Data rate 2 Mbps or less
  70. 70. Which unit to use on a 12 volt circuit? < 160 V < 160 V < 280 V L-G L-L Shield-G 500 mA 140 V 140 V 70 V S-D140-x < 80 V < 80 V < 280 V L-G L-L Shield-G 500 mA 54 V 54 V 70 V S-D48-x S-D53-x < 40 V < 40 V < 280 V L-G L-L Shield-G 500 mA 36 V 36 V 70 V S-D24-x S-D33-x < 30 < 30 < 280 V L-G L-L Shield-G 500 mA 15 V 15 V 70 V S-D12-x S-D15-x < 20 V < 20 V < 280 V L-G L-L Shield-G 500 mA 7.5 V 7.5 V 70 V S-D5-x B3/C1 Impulse Wave 6 kV, 3 kA Test Mode Maximum Continuous Operating Current Maximum Continuous Operating Voltages Model x = 2, 4, or 6 Terminals. Let-Through Voltages Using ANSI/IEEE C62.45 & C62-41.1 / C62-41.2 Test Environment: Static, positive polarity. All voltages are peak (10%). < 160 V < 160 V < 280 V L-G L-L Shield-G 500 mA 140 V 140 V 70 V S-D140-x < 80 V < 80 V < 280 V L-G L-L Shield-G 500 mA 54 V 54 V 70 V S-D48-x S-D53-x < 40 V < 40 V < 280 V L-G L-L Shield-G 500 mA 36 V 36 V 70 V S-D24-x S-D33-x < 30 < 30 < 280 V L-G L-L Shield-G 500 mA 15 V 15 V 70 V S-D12-x S-D15-x < 20 V < 20 V < 280 V L-G L-L Shield-G 500 mA 7.5 V 7.5 V 70 V S-D5-x B3/C1 Impulse Wave 6 kV, 3 kA Test Mode Maximum Continuous Operating Current Maximum Continuous Operating Voltages Model x = 2, 4, or 6 Terminals. Let-Through Voltages Using ANSI/IEEE C62.45 & C62-41.1 / C62-41.2 Test Environment: Static, positive polarity. All voltages are peak (10%).
  71. 71.  Found on long data line runs (> 75 feet)  Problem: Normal DC signal voltage plus induced AC voltage may exceed the clamping threshold of the TVSS unit  Example: MCOV is 15 Vdc, Signal voltage is 12 Vdc, Induced AC is 4 Vac. Total signal voltage is 16 volts Solution: – Provide headroom when sizing TVSS – Use 36 volt MCOV TVSS with 12 Vdc signals on long interior runs or all exterior runs
  72. 72. Rated Voltage MCOV 5 7.5 12 & 15 15 24 & 33 36 48 & 53 54 140 140
  73. 73. Now, which unit to use on a 12 volt circuit? < 160 V < 160 V < 280 V L-G L-L Shield-G 500 mA 140 V 140 V 70 V S-D140-x < 80 V < 80 V < 280 V L-G L-L Shield-G 500 mA 54 V 54 V 70 V S-D48-x S-D53-x < 40 V < 40 V < 280 V L-G L-L Shield-G 500 mA 36 V 36 V 70 V S-D24-x S-D33-x < 30 < 30 < 280 V L-G L-L Shield-G 500 mA 15 V 15 V 70 V S-D12-x S-D15-x < 20 V < 20 V < 280 V L-G L-L Shield-G 500 mA 7.5 V 7.5 V 70 V S-D5-x B3/C1 Impulse Wave 6 kV, 3 kA Test Mode Maximum Continuous Operating Current Maximum Continuous Operating Voltages Model x = 2, 4, or 6 Terminals. Let-Through Voltages Using ANSI/IEEE C62.45 & C62-41.1 / C62-41.2 Test Environment: Static, positive polarity. All voltages are peak (10%). < 160 V < 160 V < 280 V L-G L-L Shield-G 500 mA 140 V 140 V 70 V S-D140-x < 80 V < 80 V < 280 V L-G L-L Shield-G 500 mA 54 V 54 V 70 V S-D48-x S-D53-x < 40 V < 40 V < 280 V L-G L-L Shield-G 500 mA 36 V 36 V 70 V S-D24-x S-D33-x < 30 < 30 < 280 V L-G L-L Shield-G 500 mA 15 V 15 V 70 V S-D12-x S-D15-x < 20 V < 20 V < 280 V L-G L-L Shield-G 500 mA 7.5 V 7.5 V 70 V S-D5-x B3/C1 Impulse Wave 6 kV, 3 kA Test Mode Maximum Continuous Operating Current Maximum Continuous Operating Voltages Model x = 2, 4, or 6 Terminals. Let-Through Voltages Using ANSI/IEEE C62.45 & C62-41.1 / C62-41.2 Test Environment: Static, positive polarity. All voltages are peak (10%).
  74. 74.  5 - 7 Volts DC is common  Normally use TVSS rated at 36 VDC MCOV. Why?  But -- always ask about the signal voltage!  If TVSS unit clamps the signal voltage, no useable data flows through the circuit!
  75. 75. 2 Mbps 10 Mbps 100 Mbps Data rate has little impact on price. However, due to technology constraints in order to achieve high data rates, the 100 Mbps unit is less robust that the lower data rate units.
  76. 76. Wire clamping box terminals RJ receptacles Punch Down Block
  77. 77. Wire clamping box terminals, 2 - 6 wires RJ receptacles (female) 2 - 4 pins or all 8 pins protected Punch Down Block (22 – 26 AWG) Box terminals are simple for you. RJ receptacles require you to know which pin is protected, unless you choose a model with all eight pins protected.
  78. 78. You can order RJ TVSS units with the following pin configurations: • Standard Pins (1, 2, 3, & 6) • Specify any four pins • All eight pins protected All eight pins protected is safe, but costs 50% more
  79. 79. Solution: 1.Use TVSS with wire clamping box terminals, or 2.Have client determine pins used & provide data to you Protect yourself – in the proposal to your client , call out the pins you are protecting
  80. 80. Protect yourself - tell your client about circuit resistance to determine if it will be a problem The number of SPDs you can install on a circuit or network is dependent upon the resistance of the SPD Too much resistance can prevent data transfer Usually not a problem with a single SPD unless the run is long 2 and 10 MBPS SPDs have 5-Ohms resistance per wire 100 MBPS have Zero Ohms resistance Signal amplifiers, increased wire size, or using fewer SPDs can solve most problems
  81. 81. Recommended TVSS After determining data rate, signal voltage, and number of wires, choose: ◦ Any data TVSS with wire clamping box terminals ◦ Any data TVSS with RJ Connections ◦ Punchdown Block - PDB6-D or PDB25-D (data rate up to 2 Mbps)
  82. 82. RJ Connection
  83. 83. 1.6787" 6.603" 1.031" 2.339" 6.758" 7.257"
  84. 84. ST-SDLA1S1-FX ST-SPT24-AC-15 ST-D15-12 (obs) ST-COAX-BNC-HP
  85. 85. ST-RJ45-33-100M
  86. 86. It is important to note that these suggestions are exactly that – they are suggestions only. TVSS applications are an art form at best and not an exact science. The amperage load ratings are minimal acceptable. The suppressors are parallel devices so the amperage load is not critical for the unit operation – merely our ability to match the potential peak surge current capabilities of the cable with that of the Sinetamer. You can always use a higher amperage suggested device. Please do not use a lower one. Eg. Using an LA-ST60 unit on a 1000 amp panel is not recommended. However you can and may wish to install an LA-ST240 unit on a 400 amp panel in order to provide a higher degree of protection from high energy transients.
  87. 87.  Begin with the most critical and sensitive equipment. Isolate that equipment from the electrical environment by selecting the most appropriate unit. In any situation where the equipment is unusual voltage or the connection type might be different than normal – make a drawing and scan and send to me. Ask … we may already have designed a unit. We have thousands and thousands of units. Never tell a customer we can not protect it. Tell them that you will get back to them with an answer.
  88. 88.  The Ten-to-One Rule of Thumb: ◦ Ten-to-one ratio between the service size and the peak surge current per mode of the SPD – as a starting point ◦ One must consider the expected exposure of the installation location (even if the panel is internal to the facility – the loads may not be) The SCCR Rule: The SCCR of the panel multiplied by 1.5 + Lightning factor = PSC
  89. 89. Base Model PSC per mode PSC per phase* ST-SSLA/ST-CSLA 30 kA 90 kA ST-SKLA/ST-CKLA 40 kA 120 kA ST-SDLA/ST-CDLA 60 kA 180 kA ST-LSEA/ST-CSEA 80 kA 240 kA ST-SMLA/ST-CMLA 100 kA 300 kA LA-ST60 20 Ka 60 Ka LA-ST120 40 Ka 120 Ka LA-ST180 60 Ka 180 Ka RM-ST40 20 kA 40 kA RM-ST60 20 kA 40 kA RM-ST120 40 kA 80 kA RM-ST180 60 kA 120 kA ST-RSE 20 kA 20 kA
  90. 90. Step 3A Step 3B No Find Meter Gather Info Move inside Locate main switch gear Confirm volts & amps No Yes One Switch Locate distribution panels, sub-panels, breaker panels, fused disconnects or equipment Confirm configuration, volts, & amps of all panels & transformers Is panel suppression sufficient? Determine if equipment needs point-of-use protection Dedicated Circuit Determine type of equipment serviced by panel Multiple Switches Yes No Yes Apply protection Apply protection Apply protection Apply protection Apply protection
  91. 91. a b c i j k l m n o p q d e f g h r s t u
  92. 92. a b c i j k l m n o p q d e f g h r s t u SPD SPD SPD SPD SPD SPD SPD
  93. 93. To dish Air Conditioner 120/240 1 Phase 200 A Telephone Lines Telephone KSU Modem Security System VCR Satellite Controller Big Screen TV Home Entertainment Center Ground Wire 60 Amp
  94. 94. To dish Air Conditioner 120/240 1 Phase 200 A Telephone Lines Telephone KSU Modem Security System VCR Satellite Controller Big Screen TV Home Entertainment Center Ground Wire 60 Amp SPD SPD SPD
  95. 95. 120/208 2 Phase 200 A copier Coffee Pot Process PC Printer Input 120 V 13 A Common Ground Security System Telephone KSU Common Ground 120 V 20 A Input Input Input PC 1000 Foot Run Mini Computer Data Buss to Process PC’s Modem Warehouse Inventory Control Modem PLCPLC
  96. 96. 120/208 2 Phase 200 A copier Coffee Pot Process PC Printer Input 120 V 13 A Common Ground Security System Telephone KSU Common Ground 120 V 20 A Input Input Input PC 1000 Foot Run Data Buss to Process PC’s Modem Warehouse Inventory Control Modem PLCPLC SPDSPD SPD SPD SPD SPD SPD Mini Computer
  97. 97. Mini Computer Modem Telephone KSU Input Security System Checkout Register RS 232 Register Connections Lighting Step Down Transformer HVAC System Payroll Systems Amenities 480 V 3 Phase 3000 A Checkout Register 120/208 V 3 Phase 1000 A 120/208 V 120/208 V Input
  98. 98. LV Mini Computer Modem Telephone KSU Input Security System Checkout Register RS 232 Register Connections Lighting Step Down Transformer HVAC System Payroll Systems Amenities 480 V 3 Phase 3000 A Checkout Register 120/208 V 3 Phase 1000 A 120/208 V 120/208 V Input SPD SPD SPD SPD SPD
  99. 99. 480 V 3 Phase 3000 A Amenities Apartments & Condominiums Professional Offices Restaurants & Snack Bars Dry Cleaners & Laundry Panel 1 120/2 08 V 3 Phase 1000 A Panel 2 Panel 3 Panel 4 Distri butio n PanelStep Down Transformer
  100. 100. Amenities Apartments & Condominiums Professional Offices Restaurants & Snack Bars Dry Cleaners & Laundry Panel 1 120/208 V 3 Phase 1000 A 480 V 3 Phase 3000 A Panel 2 Panel 3 Panel 4 Distribution Panel Step Down Transformer SPD SPD SPD SPD SPD SPD
  101. 101. Step Down Transformer Input Process PC Printer VFD VFD VFD Arc Welder Special Building Controller CNC Control CPU CNC Machine Tool Integrated Process Machine Tool & CPU Step Down Transformer 240 Delta 480 V 3 Phase 800 A Junction Box 120 V 20 A 1 Phase 480 V 3 Phase 800 A 120/240 V 3 Phase 200 A 240 Delta 120 V 15 A 480 V 3 Phase 1200 A Amenities Step Down Transformer Step Down Transformer
  102. 102. Step Down Transformer Input Process PC Printer VFD VFD VFD Arc Welder Special Building Controller CNC Control CPU CNC Machine Tool Integrated Process Machine Tool & CPU Step Down Transformer 240 Delta 480 V 3 Phase 800 A Junction Box 480 V 3 Phase 800 A 120/240 V 3 Phase 200 A 240 Delta 120 V 15 A 480 V 3 Phase 1200 A Amenities Step Down Transformer SPD SPD SPD SPD SPD SPD SPD SPD Step Down Transformer SPD SPD
  103. 103. o a b j p q g r i h d e f m n l k c
  104. 104. a b j o p q g r i h d e f m n l k c
  105. 105. SPD SPDSPD o a b j p q g r i h d e f m n l k c Note: Multiple SPD/TVSS applications(s) on very long section of mains switchgear SPD SPD SPDSPD
  106. 106. DIST PANEL HVAC LIGHTING Panel A 3 ph 277/480 2200 Amp MCB Panel B 3 ph 277/480 1600 Amp MCB Panel C 3 ph 277/480 1400 Amp MCB
  107. 107.  Panel A – Main Panel 2200 Amps, 277/480 volts ◦ Recommend ST-LSEA3Y2. Why? Main service, 10:1 rule = 220ka per phase minimum. Non sensitive/critical equipment. Panel B and C – Distribution Panel 1600 and 1400 Amps, 277/480 volts – Recommend ST-SDLA3Y2 or LA-ST1803Y2C. Why? 10:1 rule = 160 and 140ka per phase minimum.
  108. 108. DIST PANEL HVAC LIGHTING Panel A 3 ph 277/480 3000 Amp MCB Panel B 3 ph 277/480 1600 Amp MCB Panel C 3 ph 277/480 1400 Amp MCB Panel D, E, F 3 ph 120/208 225 Amp MCB
  109. 109.  Panels D, E and F – sub distribution panel, feeding sensitive equipment 225 Amps, 120/208 volts ◦ Recommend LA-ST603Y1C? Why? Main Breaker rating of 225 amp, 10:1 rule does not typically apply on panels of this nature – under 600 amps. Frequency responsive units are most effective at preventing process disruption and protecting microprocessor based equipment.
  110. 110. DIST PANEL HVAC LIGHTING Panel A 3 ph 277/480 3000 Amp MCB Panel B 3 ph 277/480 1600 Amp MCB Panel C 3 ph 277/480 1400 Amp MCB Panel D, E, F 3 ph 120/208 225 Amp MCB
  111. 111. Company Confidential 5 Telephone Lines and 2 – 24vdc 4/20 mA Circuits Secondary Panel 1200 amps 120/208 wye Service Entrance 2000 Amps 277/480 Wye Critical Loads 240 volt PLC
  112. 112. Company Confidential ST-PDB5 & ST-CLMF24-4 Secondary Panel 1200 amps LA-ST120-3Y1C Service Entrance 2400 Amps ST-LSEA3Y2 Critical Loads Series Filters ST-SPT240-15
  113. 113. Company Confidential Service Entrance 800 amps 120/208Secondary Panel 120/208 400 amps Critical Point of Purchase (Cash Register) 120 volts
  114. 114. Company Confidential Service Entrance LA-ST120-3Y1CSecondary Panel LA-ST60-3Y1C ST-SPT120-15
  115. 115. RM-ST403N4 ST-SPT240-15 ServoMotors – 10-25HP Drives 30 HP Motors ST-RSE3N4
  116. 116. RM-ST120-3N4 ST-SPT240-15
  117. 117. RM-ST403N4 ST-SPT24DC-15 RM-ST60-3N4
  118. 118. ST-SPT24DC-15 ST-SPT24DC-15 ST-SPT240-15 ST-SPT120-15
  119. 119. Company Confidential Datacom for external signal line Utility Service 12.47kV 480V ST-Advantage Main Distribution Panel AFD ST-SPT Motor PLC Motor Motor MCC Production Floor Welder Small h.p. Motors Office Panel Work Station PC Copier Printers Lamp FaxServer Note: all incoming data, telephone, 4-20 mA, and signal lines require protection LA-ST LA-ST 120V RM PBX (telephone switch) Data Suppressor@ Building Entrance ST-SPT electronic load TVSS
  120. 120. PLC’s (AC and or DC) – ST-SPT120(240)-15 or appropriate DC voltage. Or you can use the parallel unit – ST-SP120(240)-P Fire/Security Alarm Systems – ST-SPT unit for AC voltage. Typically they will have a telephone line that needs protection. So you can combine the AC and Telecom. ST-SPT120-15-RJ. If there are signal wires that leave that building to an outside location – consider protecting that also. Typically the appropriate ST-CLMF or ST-CLDIN units – finding out the correct voltage and number of wires. Access Control Systems – magnetic key cards or similar type, follow same procedures as above.
  121. 121. General Recommendations  Traffic Lights: combination unit – ST-SPT120-15-RJ  Slot Machines / Tragamonedas: 3 phase panel – LA-ST60-3Y1C  Bank ATM: ST-SPT120-15-RJ. If the data is not telephone but data circuit, then need data information – wires and voltage and use ST-SPT-120-RJ45.  Video Surveillance Systems: Protect the AC and the cameras. Combonation units are available. 120 AC, 24DC, Coax… Acquire all information.
  122. 122. UPS systems – Single phase – typically 1kva up to 3kva. ST-SPT120(240)-P 120 or 240 volt installed in parallel. Single phase - 4kva – 10kva – ST-SPT240-30 installed series or parallel. UPS systems – Three phase – up to 150 kva – LA-ST60- 3Y1C or 3Y2C. 200 kva and larger – LA-ST120-3Y2C. CNC Machine tools – RM-ST60-3N2 (3N4) (or RM- ST120) installed at main breaker. ST-SPT120(240)-15 at the controller. Variable Frequency Drives in areas of low lightning VFD – up to 75 hp – ST-RSE3N4 or RM-ST603N4 VFD – up to 150 hp – RM-ST60-3N4 VFD – up to 250 hp – RM-ST120-3N4 VFD – up to 400 hp – RM-ST180-3N4 * with ST-SPT120 when PLC is used. General Recommendations
  123. 123. General Recommendations For VFD’s in High Lightning or Oil Field applications: Level 1 - ST-SMLA3N4 Level 2 – RM-ST180-3N4 (if no added capacitors in VFD) Level 3 – ST-SPT120(240) -15 at RTU/PLC/ICM For VFD’s in Low/Mid Lightning Level 1 – ST-LSEA3N4 Level 2 - RM-ST120-3N4 (if no added capacitors in VFD) Level 3 - ST-SPT120(240) -15 at RTU/PLC/ICM
  124. 124.  Motor  1P 240 VAC 1½ HP  10 A  Inside application  Very tight quarters ST-FSPT-240-15 ST-FSP-240-P
  125. 125.  Variable frequency drive  50 HP, 460NN  65 A  Indoor application • ST-RSE3N4 • RM-ST40-3N4
  126. 126.  Gas Pump  120 VAC  20 A  RJ45 Ethernet Communication • ST-SPT120-30-RJ45 • ST-ICPS120-20 + ST-RJ45-24-Cat5E
  127. 127.  Pump Motor in Rock Mine  4160 VAC Delta  200 A • ST-LSEA-MV3N4160
  128. 128.  Pick and Place Machine for PCB Assembly  120/208 Wye  40 A • RM-ST403Y1 • LA-ST603Y1C
  129. 129.  OEM Application for Drink Machines  120 V 1P  15 A • ST-SPT120-15 • ST-FSPT120-15 • ST-L120-P-1L
  130. 130.  Automated Checkout and Laser Scanner at large department store.  120 V, 1P  15 A  RJ45 Ethernet communication • ST-SPT120-15-RJ45
  131. 131.  Water Pump for a large nursery  15 HP  120/208 V Wye  46 A  Outdoor Application • RM-ST603Y1
  132. 132.  Control Servos (multiple)  DIN rail mount (need small footprint)  48 VDC  1 A • ST-ICPS-48DC-3-DIN • ST-ICPF-48DC-3-DIN
  133. 133.  New construction in factory  Multiple Variable Frequency Drives (24 units – 4 circuits )  480 VAC 3PH DELTA  75 A • Level 1 – RM-ST120-3N4 • Level 2 - ST-RSE3N4 at the breaker location of each set of 6 VFD’s
  134. 134.  MRI Machine in Hospital  120/208 V Wye  200 A  Need very tight clamping • ST-CKLA3Y1 (Best) • LA-ST60-3Y1C (Better) • RM-ST40-3Y1 (Good)
  135. 135.  Cell Shelter  1Ph 120/240  150 amps • Level 1 – RM-ST180-1S1 • Level 2 - RM-ST60-1S1
  136. 136.  Ball Park Lighting  480 V Delta  40 A  Multiple circuits plus parking lot lighting • Circuit Board - RM-ST403N4 • Parking Lot Lights - ST-FSP2-2N4-P
  137. 137.  Coal Conveyer Belt Drive for power plant  50 HP  480 V Delta  65 A  Outside, corrosive environment • RM-ST120-3N4W
  138. 138. Remember… this is not an exact science, it is an art-form, and the only wrong answer is the wrong voltage.

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