Low Voltage Withdrawable Switchgear Supplier

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Low Voltage Withdrawable Switchgear

Low Voltage Withdrawable Switchgear

The Gcs type low votage withdrawable Switchgear (hereinafter referred to as "switchgear") is designed and developed by ourcompany to meet the reguirements ot design units and power users, it is in ine with the national conditions, has hiah technicaperformance indicators, is adaptable to the development needs of the power market, and can compete with existing importeaproducts. The product is widely used by power users and is suitable for distribution systems in industries such as power plantspetroleum, chemical, metallurgy, textiles, and high-rise buildings.It is used in low-voltage complete distribution devices for power generation, distribution, centralized control of motors, andreactive power compensation in systems with a rated frequency of 50 (60) Hz, a rated working voltage of 380V (400V), (660V), anda rated current of 6300A and below.
This product complies with the standards GB7251 "Low-voltage Switchgear and control equipment” JB/T9661 "Low-voltagewithdrawable switchgear," lEC60349 "Low-voltage Switchgear and control equipment."

Ambient air temperature: -15°C to +40°c, the daily average temperature should not exceed +35°c.If exceeded, the capacity should be
derated based on actual conditions.
Altitude: Not exceeding 2500m.
Relative humidity: Not exceeding 50% at the highest temperature of +40°c. Allow higher relative humidity at lower temperatures,
such as 90% at +20°c. Consider the potential impact of temperature changes leading to condensation.
Installation tilt: Not exceeding 5 degrees, and the entire cabinet column should be relatively flat (compliant with GBJ232-82 standard).
The switchgear should be installed in places without severe vibration and shocks, and where electrical components are not
exposed to corrosive environments.Note: When users have special requirements, they can negotiate with the company for solutions.

Main circuit rated voltage (V) AC 380(400),(660)
Auxiliary circuit rated voltage (V) AC 220,380(400), DC 110,220
Rated frequency (Hz) 50(60)
Rated insulation voltage (V) 660(1000)
Rated current (A) Horizontal busbar ≤6300
Vertical busbar (Mcc) 1000
Busbar rated short-time withstand current (kMIS) 50,80
Busbar rated peak withstand current (kNo.1s) 105,176
Power frequency test voltage (V/1 min) Main circuit 2500
Auxiliary circuit 1760
Busbar Three-phase four-wire system A,B,C,PEN
Three-phase five-wire system A,B,C,PE,N
Protection level IP30,IP40

The switchgear's main circuit has a total of 32 setsand 118 specifications (refer to Table 2).Thisincludes schemes and specifications
derived fromchanges in the auxiliarycircuit'scontrol andprotection.It caters to theneedsof powergeneration,supply,andother
power users,witharatedworkingcurrentof6300A.Itissuitablefordistributiontransformers of250okVandbelow.
Additionally,capacitorcompensationcabinetsaredesignedtomeetthedemandfor improvingpower factors inpowersupply and
usage.Reactor cabinets are designed considering comprehensive investment needs.

Schemenumber 01 02 03 04
Main Circuit Scheme Diagrams
Applications Power Reception(UpperIncomingLine) Power Reception(LowerIncomingLine) PowerReception(CablencomingLine) Interconnection
Main Electrical Components Specification number ABCDEFG ABCDEFG ABCDE ABCDEFG
Short-time Withstand
Current Instantaneous
Withstand Current (kA)
80/176 80/176 80/176
50/105 50/105 50/105 50/105
30/63 30/63 30/63 30/63
4000 3150 2500 2000 1600 1000 630 4000 3150 2500 2000 1600 1000 630 2500 2000 1600 1000 630 4000 3150 2500 2000 1600 1000 630
Rated Current(A) 1 1
DW45-6300 1 1
DW45-3200 1 1 1
DW45-2500 1 1 1
DW45-2000 1 1 1
DW45-1600 1 1 1
DW45-1250 1 1 1
DW45-630
SDL-口
SDH-口口/5、BH-0.66 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4) 3(4)       3 3 3 3 3 3 3
CabinetWidth(mm) 800(1000) 600 800(1000) 600 800 600 1000 800
CabinetDepth(mm) 1000  800 1000  800 800 1000 800
OccupiedSmall RoomHeight(mm)
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