This document discusses Alstom's PIX and PIX High air-insulated switchgear product lines for voltages up to 24 kV. It provides an overview of the switchgear families and their main components, features, and benefits. The PIX switchgear provides maximum safety through internal arc protection and easy, safe operation. It has compartments for main busbars, cables, circuit breakers, and low voltage. The PIX High is designed for higher ratings up to 5000 A and 50 kA short-circuit current. It has a robust construction and allows safe, front-accessible assembly and maintenance.

1. Alstom Electrical Industries (Pty)
Ltd

2. 2 2
PIX & PIX-H
Air-insulated Switchgear up to 24 kV
Emrah Aksoy
Tendering & Sales Manager
AREVA T&D
ATM
Gebze/TURKEY
22 September 2008
Greg Whyte
Sales & Customer Services Manager
ALSTOM ELECTRICAL INDUSTRIES
MV SWITCHGEAR
Knights/SOUTH AFRICA

3. 3 3
PIX
Solutions Worldwide

4. 4 4
Air-insulated Switchgear
PIX
PIX
The Switchgear Family
PIX
High
PIX
Motor Control
Center
PIX
DBB 17.5kV
(BIL 95kV)

5. 5 5
PIX
The Switchgear Family
50 kA
16 kA
20 kA
25 kA
31.5 kA
40 kA
5000 A
4000 A
3150 A
2500 A
2000 A
1600 A
1250 A
630 A
PIX High
(12, 17.5 kV)
PIX
(12, 17.5 kV)
PIX
(24 kV)
PIX MCC
(7.2 kV)

6. 6 6
PIX
Compartment description
1 Main Busbar
2 Cable
3 Circuit Breaker
4 Low Voltage
1
3
4
2

7. 7 7
PIX
Main Busbar Compartment
Segregation of busbars
Main Busbar compartment

8. 8 8
PIX
Cable Compartment

9. 9 9
PIX
Circuit Breaker Compartment

10. 10 10
PIX
Low Voltage Compartment

11. 11 11
Maximum
Safety
Easy and
Safe Operation
Easy
Access
PIX
Operational Benefits

12. 12 12
PIX
Maximum Safety
Successfully tested against internal arc faults!
Pressure relief of compartments
Circuit breaker Busbar Cable connection
Circuit breaker Busbar Cable connection

13. 13 13
PIX
Maximum Personnel Safety
Protection Against Internal Arc
Gas Protection Deflectors

14. 14 14
PIX
Maximum Personnel Safety
Protection Against Internal Arc
Gas Evacuation Ducts

15. 15 15
PIX
Easy and Safe Operation
All mechanical operating procedures performed from the front -
with all doors securely closed!
 Mechanical operation of C.B. with closed front door

16. 16 16
PIX
Easy and Safe Operation
 Mechanical operation of C.B. with optional push button
mechanism with closed front door
All mechanical operating procedures performed from the front -
with all doors securely closed!

17. 17 17
PIX
Easy and Safe Operation
Moving the cassette Lift and open the door

18. 18 18
PIX
Easy and Safe Operation
 Interlocked plug-in auxiliary
connections
Fixing of the LV- connector to
the C.B. by horizontal locking
mechanism
Storage compartment for LV
plug / harness
Auxiliary plug (64-poles) is
interlocked with the C.B.
racking system
Electrical indication of plugged
position

19. 19 19
PIX
Easy and Safe Operation
 Functional transport trolley
Lift and drive to Dock on to the cubicle Fix steering wheels
Interlock the C.B. Move out C.B. Lift and remove

20. 20 20
PIX
Easy and Safe Operation
 Operation and indication in the cross member
Earthing Switch:
Operation, lockable
and interlocked
All “feeder elements“ are local to the feeder site!
Earthing Switch:
Position indicator
Voltage indicator
of feeder connection
Plug-in socket for
voltage indication

21. 21 21
PIX
Easy and Safe Operation
Operation and indication “Earthing”
(optional with key lock)
Unlock by “finger” !
 Common safe & easy operation throughout the PIX range
e.g. ‘’Circuit Earthing”
First unlock, insert the crank handle and operate the earthing
switch.

22. 22 22
PIX
Easy and Safe Operation
 Padlocking
Earthing switch Each Shutter discrete
Truck (2)
Optional:

23. 23 23
PIX
Easy and Safe Operation
Optional:

24. 24 24
 Easy assembly
All assembly procedures can
be performed from the front.
PIX
Easy Access

25. 25 25
PIX
Easy Access
 Easy assembly
All assembly procedures can
be performed from the front.
Removable division plate and
cross member between circuit
breaker and cable connection
compartments allows
enhanced access

26. 26 26
PIX
Easy Access
 Easy assembly
All assembly procedures can
be performed from the front.
Removable division plate and
cross member between circuit
breaker and cable connection
compartments allows
enhanced access
Cable compartment easily
accessible and spacious,
facilitating cable connection.

27. 27 27
PIX
Easy Access
In addition to the top covers
removable bus bar partitions
allow full installation from the
front
 Easy assembly
All assembly procedures can
be performed from the front.
Removable division plate and
cross member between circuit
breaker and cable connection
compartments allows
enhanced access
Cable compartment easily
accessible and spacious,
facilitating cable connection.

28. 28 28
PIX
Easy Access
Cubicle width 800/1000 mm: up to 4/6 cables per phase and 630mm² per cable
Including cable clamps and floor plate (IP3X)
 Spacious cable compartment

29. 29 29
PIX
Main Components
Compact and robust construction
 3150 A
Actuating force from rotary spring drive
Truck with Vacuum Circuit Breaker HVX
upto 3150 A

30. 30 30
Disconnecting Trucks UTX
Metering Truck MTX
24 kV
12 kV
Metering & Disconnecting Trucks
PIX
Main Components

31. 31 31
PIX High
Air-insulated Switchgear with
Vacuum Circuit Breaker

32. 32 32
 Developed for high ratings
 Robust construction
 Optimum operator safety
 Safe and easy operation
 Small foot print
PIX High
Advantages

33. 33 33
 Designed for high ratings
Rated currents up to 5000 A
Short-circuit current
50 kA, 3 sec.
Breaking capacity up to
50 kA / 17.5 kV
Making capacity of
earthing switch 125 kAp
Internal Arc Classification
(IAC) for 50 kA 1 sec.
Rated impulse withstand
voltage (BIL) up to 95 kVp
PIX High
Main Features

34. 34 34
PIX High
Description of Compartments
1
3
2
4
 1 Busbar compartment
Metal enclosed with 4 compartments
 2 Low-voltage cabinet
 3 Withdrawable circuit breaker
module with HVX
 4 Cable compartment

35. 35 35
PIX High
Main Features
 Robust construction
High-pressure resistant front
doors with interlocking flanges
on all sides. This means simple
operation combined with high
personal safety.
High current earthing circuit
up to 50kA (3s)
Combined sheet-metal
folding / joining / riveting
technique using galvanised
sheet-metal plates
Free standing and
self support chassis

36. 36 36
 Construction features
Metal shutters in front of
the rack-in fixed contacts
at 12kV and 17.5 kV
The shutters cannot be
opened manually - only
with separate lifting device
Separate lifting
mechanism for busbar and
outgoing feeder shutters
PIX High
Main Features

37. 37 37
PIX High
Circuit Breaker Module HVX
Robust flat contacts suited for heavy currents

38. 38 38
PIX High
Additional Modules
MTX UTX
Metering truck
Voltage transformer
with or without primary fuses
Disconnecting truck
up to 3150 A without fan
up to 5000 A with fan

39. 39 39
PIX High
One Transport Truck for 800mm and 1000 mm

40. 40 40
PIX High
Cable Fixing Area
PIX 12kV PIX 17.5 kV
X 529 mm 529 mm
L1 480 mm 480 mm
« Spacious cable connection area »
 Up to 8 cable/phase
 Cable cross sections up to 630mm²
 Standard is divided floor plate
(IP3X) with cable fixing clamps

41. 41 41
PIX High
Rear Cable Compartment Connection Box
« Flexible connection specially for high rated currents »

42. 42 42
PIX High
Rear Cable Compartment Connection Box
« Flexible connection specially for high rated currents »

43. 43 43
PIX High
» Technical data in accordance to IEC 62271-200
Rated voltage kV 12 17.5
Rated impulse withstand voltage (BIL) kVp 75 95
Rated frequency Hz 50/60 50/60
Rated current (step 1) up to A 4000 4000
Rated current (step 2)* up to A 5000 5000
Rated short time withstand current kA 50 (3s) 50 (3s)
Rated peak current kAp 125 125
Internal Arc Classification (IAC) AFL(R) kA 50 (1s) 50 (1s)
* in development

44. 44 44
 Height 2330 mm (w/o extensions)
 Depth 1590 mm
 Width 800 mm and 1000 mm
PIX High
Compact Dimension
Width depends on feeder currents:
1250 A 800 mm
2500 A 800 mm* or 1000 mm
3150 A 1000 mm
4000 A 1000 mm
5000 A 1000 mm
* max. 4 cable per phase
Optimum cubicle width
H
W D

45. 45 45
PIX High
Main Functions
»Circuit Breaker feeder, type CB40
M
Optional with
channel

46. 46 46
PIX High
IAC AFL(R) 50kA-1s, w. pressure relief channel into the room
1590 min. 1500
200
2330
2830
Remark:
Distance to ceiling
600mm (+/- 100mm)
acc. IEC 62271-200
3330
min. 500

47. 47 47
PIX
Questions & Answers