The document describes LSIS's medium voltage switchgear solutions, particularly the 'Solution Power V' series, designed for power distribution systems with voltage ratings from 600V to 24kV. It details the features, technical specifications, construction, and safety standards of the switchgear, confirming compliance with various international safety standards. Additionally, it emphasizes the maintenance-free design, user-friendly features, and certifications that ensure reliability and efficiency in electrical systems.

1. www.lsis.biz
Medium Voltage Switchgear
Solution Power V series
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2. With digital know-how,
LSIS provides future technology
in electrical equipment field for
the customer’s satisfaction.
2
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3. C O N T E N T S
Features 4
Technical data 5
Construction 6
Detailed applied apparatuses 8
Vacuum circuit breaker 9
Typical arrangement 10
Designed and manufactured to satisfy various
standards such as those of IEC, BS and ANSI, the LS
Metal-clad switchgears, with capacity rating from
600V to 24kV, are widely used for power generation
and transmission and distribution facilities used by
power companies, industrial plants, buildings and
switchgear facilities installed at water treatment
plants.
Standard characteristics of
Solution Power series Switchgear is
certified by KEMA, CESI, KERI,
KOLAS laboratory.
LS Solution Power V series 3
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4. 4
Features
Stabilized Power Supply and Maximization of Energy Efficiency-where there is industry
and electricity, LSIS always stands by your side.
Solution Power series Switchgear using a Pro-MEC Vacuum Circuit Breaker(VCB) is
metal-clad type in compliance with IEC/BS standards, and is designed for
general power distribution systems with rated voltage up to 24kV.
Compact and Simple Design
Standard module for each circuit.
Human engineering for measuring and indication.
Safety Design
Compartments are divided by grounded metal
partitions.
Quick-make earthing switches are used for
earthing and withstand of making capacity.
Type tested in accordance with IEC 60298,
IEC 62271-200.
Removable circuit breaker with mechanical
interlocks to prevent mal-operation.
Pressure relief device is available on request.
Maintenance and Inspection
VCB is maintenance free.
Minimized maintenance and simplified inspection
works are realized allowing easy and
fast cable connection.
Tightly sealed enclosure protects the equipment
from ingress of contamination and vermin.
Normal Service
Standard characteristics of Solution Power series Switchgear
comply with condition as below (IEC standard)
�Ambient temperature : -5℃ ~ +40℃
�Maximum altitude : 1000m
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5. LS Solution Power V series 5
Technical data
Standard
IEC 62271-200 for switchboard.
IEC 60694 for general purpose
IEC 60298, Annex AA. for
internal arc test.
(Classification IAC : BFLR)
IEC 60529 for the degree of
protection.
IEC 62271-100 for the circuit
breakers.
Applicable standard is
available.
Note) * 2,150mm available. (Vacuum Circuit Breaker available only.)
Standard Characteristics
Model Name Unit Solution Power V7 Solution Power V12 SolutionPowerV17 SolutionPowerV24 SolutionPowerV36
Rated voltage kV 7.2 12 17.5 24 36
Rated insulation voltage kV 7.2 12 12 17.5 24 36
Ratedpowerfrequencywithstandvoltage kV1min 20 28 28 38 50 70
Ratedlightningimpulsewithstandvoltage kV 60 75 75 95 125 170
Rated frequency Hz 50/60 50/60 50/60 50/60 50/60 50/60
Rated short-time withstand current kA/s 40/3 25/3, 31.5/3 40/3 40/3 25/3 25/3, 31.5/3, 40/3
Peak current kA 104 63 104 104 63 65, 81.9, 104
Internal arc withstand current kA/s 40/0.1 25/0.1 40/0.1 40/0.1 25/0.1 40/1
Degree of protection IP 4X 4X 4X 4X 4X 4X
Main busbar rated current A 3,150 2,000 3,150 3,150 2,000 3,150
Branch connection rated current A
Rated current A 3,150 2,000 1,250 2,000 1,250 630 3,150 2,000 1,250 3,150 2,000 1,250 2,000 1,250 630 3,150 2,000 1,250
Wide mm 850 650 650 800 650 650 850 650 650 950 800 800 1,000 800 800 1,200
Height mm 2350* 2350* 2350* 2350* 2350* 2350* 2350* 2350* 2350* 2,350 2,350 2,350 2,350 2,350 2,350 2,250
Depth mm 1,900 1,900 1,900 1,700 1,700 1,700 1,900 1,900 1,900 1,900 1,900 1,900 1,800 1,800 1,800 2,600
3150-2000-1250 2000-1250-630 3150-2000-1250 3150-2000-1250 2000-1250-630 3150-2000-1250
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6. Low voltage compartment
C.B. compartment
BusBar compartment
Cable compartment
V.T. compartment
6
Construction
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7. Low voltage compartment
Fully enclosed and separated from
the high voltage compartment.
Adequately dimensioned to accommodate
all necessary protection and control device.
LS Solution Power V series 7
BusBar compartment
BusBar is hard-drawn high conductive
copper supported by epoxy resin
insulator wall bushing.
BusBar are designed for sufficient
mechanical strength against
short time current.
Wall bushing are provided as option.
Cable compartment
Sufficient spaces are provided for
cable termination and entry.
Current transformer, cabling and
supporting brackets are
composed at cable compartment.
CB compartment
Can be drawn in and out
C.B. without opening the door.
Installment of viewing window.
Stable structure of hinge and locker.
Shutter padlock facility is available
Installment of IP cover in front of C.B.
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8. 8
Detailed applied apparatuses
(CB Compartment)
Mechanical device of
C.B. Compartment (option)
Connector for Auxiliary circuits
When the C.B. is service
position, jack terminal can not
be removed.
Shutter Padlock
The hole to lock the shutters
(load and line side) in close
position, to increase the safety
during the maintenance of
a VCB draw-out position.
Emergency trip device
C.B. can be tripped by trip
device without opening
the door.
Viewing window
Through the viewing window
status of C.B. can be checked
without opening the door.
Draw-in and out device
C.B. can be drawn-in and out
with the door closed.
Mechanical position indicator
Indicate the service and test
position of C.B.
Interlocking device between door and C.B.
When the C.B. is service
position, customer can not open
the door without releasing
the interlock key.
Earthing Switch Padlock
Prevent the accident in case of
carelessness earthing switch
operation. The locking of the
earthing switch is available
when the switch is in
'OFF' position.
VCB Position Padlock
The hole prevent the draw-in and
out of a VCB from the present
position('RUN' or 'Test').
Standard option in the interlock
lever of the E, F class
draw-out type VCB.
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9. LS Pro-MEC VCB is user-friendly to give more convenience and safety by
providing high speed interrupting time (3cycles), adopting the rapid
autoreclosing method, and having wide range of accessories.
Optional Accessories
Earthing switch
- (for G class draw-out type only)
For the safety during the maintenance
of a VCB panel, discharge the
charging current in the load side
of a VCB with this earthing switch.
Mechanically operated cell switch (MOC)
- (for G class draw-out type only)
The auxiliary switch (3a4b), which indicate
the 'ON' or 'OFF' condition of a VCB, but
operated only when the VCB is in 'Run' state.
(Installed in the bottom of a cradle)
Truck operated cell switch (TOC)
- (for G class draw-out type only)
The auxiliary switch (3a4b), which indicate
the 'Run' state of a VCB and is operated by
the movement of a VCB frame.
(Installed in the bottom of a cradle)
Position switch of the earthing switch
- (for G class draw-out type only)
Indicates the 'ON' or 'OFF' status of the
earthing switch(5a5b).
Locking coil of earthing switch
- (for G class draw-out type only)
To prevent the accident through carelessness
earthing switch operation, the earthing switch
can be changed to 'ON' position after
releasing the lock by magnetizing the coils.
Code plate (Miss insertion prevention)
- (for E, F class draw-out type only)
To prevent t mis insertion of VCB to a cradle.
LS Solution Power V series 9
Vacuum circuit breaker
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10. 10
Typical arrangement
Section View
Skeleton Diagram
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11. LS Solution Power V series 11
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12. �� For your safety, please read user's manual thoroughly before operating.
�� Contact the nearest authorized service facility for examination, repair, or adjustment.
�� Please contact a qualified service technician when you need maintenance.
Do not disassemble or repair by yourself!
�� Any maintenance and inspection shall be performed by the personnel having expertise concerned.Safety Instructions
www.lsis.bizⓒ 2001.5 LSIS Co.,Ltd. All rights reserved.
Specifications in this catalog are subject to change without notice due to
continuous product development and improvement.
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�� CHEONG-JU PLANT
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2011. 08 Medium Voltage Switchgear (E) 2001. 05/(08) 2011. 08 Printed in Korea STAFF
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