RMR-40.5 Series

brief introduction

The system of RMR-40.5kV of combined switch cabinets can be divided into three kinds of unit cabinet：
_Position cable connection unit (Cable switch unit), additional live shows and configuration of surge arresters and grounding fault component. Code C
_Position switch and fuse tripping system and earthing switch interlock system fuse combined electrical unit (Fuse combination unit), additional live shows and configuration of surge arresters and grounding fault component. Code F
_Position switch and vacuum circuit breaker combined appliances unit (Vacuum circuit breaker unit), additional current transformer, live shows and configuration of surge arresters and grounding fault component. Code V

designed to switch!

No

Item

Unit

parameter

1.

Rated Voltage

KV

40.5

2.

Power Frequency withstand voltage

dry

KV

80/95

wet

KV

80/95

Lightning Impulse withstand Voltage (peak value)

KV

170/185/200

3.

Rated Current

A

630

4.

Rated Short Circuit Breaking Current

KA

20/25(V) 31.5(F)

5.

Rated closed-loop breaking current

A

630(C)

6.

Rated cable charging interrupting current

A

50(C)

7.

Rated line cable charging interrupting current

A

10(C)

8.

Rated off circuit transformer breaking current

A

16

9.

Rated making current (peak)

KA

50/2.5(main switch/grounding)

10.

Rated withstand current (peak)

KA

50/2.5(main switch/grounding)

11.

Rated short time withstand current

KA

20

12

Rated short time withstand time

S

4

13.

Mechanical life

times

C/F（2000）V(10,000)

The system of RMR-40.5kV of combined switch cabinets can be divided into three kinds of unit cabinet：

dimension: C/F=500X900X1950mm V=800X900X1950mm

C UNIT

F UNIT

V UNIT

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