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Low Voltage, Medium Voltage input switchgear cabinet

Low voltage, medium voltage switchgear cabinet - Medium voltage switchgear cabinet: Manufactured into separate functional cavities (switchgear cavity, cable cavity, busbar cavity and low voltage cavity) to avoid transmission problems. Even in an air-insulated environment, the entire busbar is insulated to increase its safety. The Vacuum Circuit Breaker (VCB) ensures maximum safety when servicing and replacing

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Low voltage, medium voltage input switchgear cabinet

Introduction of low-voltage switchgear cabinet (general input cabinet):

Medium and low voltage input switchgear cabinet as well as general input cabinet composed of ACB air switchgear, MCCB switchgear equipment mounted on sturdy steel cabinet frames and connected by conductive busbar copper system, ensuring electrical insulation. The cabinet is installed after the transformer and near the additional load to control and distribute voltage to additional load. Some of the features of these low voltage cabinets are the separate measuring compartment for the management of power companies or the current transformers for measuring circuits and counted separately from the switchgear compartment.

Specifications:                              

  • Standard applicable: IEC439-1
  • Rated operating voltage: 400VAC, 50Hz
  • Rated current: up to 6300A
  • Protection level: IP54outdoor cabinet, IP42indoor cabinet.
  • Main equipment: ACB, MCCB Air switchgears.
  • Cabinet frame: Steel, 1.5-2.5mm thick.

Cabinet drawing:

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Low Voltage, Medium Voltage input switchgear cabinet: VCB Medium Voltage switchgear cabinet

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Low voltage, medium voltage switchgear cabinet – Medium voltage switchgear cabinet:

Manufactured into separate functional cavities (switchgear cavity, cable cavity, busbar cavity and low voltage cavity) to avoid transmission problems. Even in an air-insulated environment, the entire busbar is insulated to increase its safety. The Vacuum Circuit Breaker (VCB) ensures maximum safety when servicing and replacing. Moreover, the dynamic cavities are equipped with pressure relief valves to keep the operator’s safety.

Application: Equipped for heavy industry factories such as paper, cement, iron-steel, industrial parks and EVN power stations.

Description

Parameters

Rated voltage (kV)

7,2

12

17,5

24

40.5

Rated electrical insulation (kV)

- Industrial frequency/ 1 min

- Pulse / 1,2×50µs

 

20

60

 

28

75

 

38

95

 

50

125

50

125

Rated frequency (Hz)

50/60

50/60

50/60

50/60

50/60

Rated current in main busbar (A)

3150

3150

3150

2500

2500

Rated short-circuit withstand current (kA/3s)

50

50

40

31.5

31.5

Peak current (kA)

125

125

100

63

63

Rated currents in feeders (A)

630

1250

1600

2000

2500

3150

630

1250

1600

2000

2500

3150

630

1250

1600

2000

2500

3150

630

1250

1600

2000

2500

_

630

1250

1600

2000

2500

_

Switchgear

- Rated current (A)

- Short-circuit withstand current (kA)

 

630- 3150

50

 

630- 3150

50

 

630- 3150

40

 

630- 2500

31.5

 

630- 2500

31.5

Protection level

- Outside

- Inside

 

IP.4x

IP.2x

 

IP.4x

IP.2x

 

IP.4x

IP.2x

 

IP.4x

IP.2x

 

IP.4x

IP.2x