RMR-12/24 Full gas insulated RMU
General:RMR is a ring main unit for the secondary distribution network. RMR can be…
RMR-12/24 Full gas insulated RMU

RMR-12/24 Full gas insulated RMU

Detailed description

  • Description
  • Technical data

General:
RMR is a ring main unit for the secondary distribution network. RMR can be supplied in 10 different configurations suitable for mostswitching applications in 12/24 kV distribution networks. It is extendable and combined with the SafePlus concept, which is ABB’s flexible, modular compact switchgear, they represent a complete solution for 12/24 kV secondary distribution networks. RMR and SafePlus have identical user interfaces. RMR is a completely sealed system with a stainless steel tank containing all live parts and switching functions. A sealed steel tank with constant atmospheric conditions ensures a high level of reliability as well as personnel safety and a virtually maintenance-free system. The RMR concept offers a choice of either switch-fuse combination or circuit-breaker with relay for protection of the transformer. RMR can be supplied with an integrated remote control and monitoring unit. This product is in conformity with the standards of IEC60420, GB/T11022, GB3804,GB3906


Service environment:
a) Air temperature:Maximum temperature: +40℃; Minimum temperature:-20℃
b) Humidity:Monthly average humidity 95%; Daily average humidity 90% .
c) Altitude above sea level:Maximum installation altitude: 2500m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.


Standard instruction:
D unit configuration
See standard configuration and features of "Cable connecting module without earth switch module"

C unit configuration
See standard configuration and features of "Load break switch module"
F unit configuration
See standard configuration and features of "Load break switch and fuse combination module"
V unit configuration
See standard configuration and features of " Vaccum switch module"

Standard combinations also includes belowing configurations:
Voltage indicator of incoming bushing capacitive character SF6 density/pressure monitor( gas meter) with each gas cell Ring for lifting Operating handle.

Note:For short circuit breaking and peak current is based on Fuse plus combination of F module.



No.

Item

Unit

C Module

V Module

Load break switch

Circuit breaker

1

Rated voltage

kV

12

24

12

24

2

Rated current

A

630

3

Rated frequency

Hz

50/60

4

1min Power frequency withstand voltage

kV

45

55

45

55

5

Lightning impulse withstand voltage

kV

75

125/150

75

125/150

6

Rated transfer current

A

1700

1400

7

Rated active load and close circuit breaking current

A

630

8

Rated cable charge breaking current

A

50&10

9

Rated short circuit breaking current

kA

20

16

10

Rated short circuit making current(peak)

kA

63

50

63

50

11

Short time (2s) withstand current, load switch/earth

kA

25/20

20/20

25/20

20/20

12

Rated withstand current (peak)

kA

63

50

63

50

13

Mechanism life

Times

3000

10000

3000

14

Dimension ( per unit)

mm

370x750x1345

Best solution for your power!
Copyright © 2018 Rockwill Electric Group Co.,Ltd. All Rights Reserved.