Outdoor SF6 Ring Main Unit with Enclosure-40.5kV

  • Outdoor SF6 Ring Main Unit with Enclosure-40.5kV
Key attributes
Brand ROCKWILL
Model NO. Outdoor SF6 Ring Main Unit with Enclosure-40.5kV
Rated voltage 36kV
Rated frequency 50/60Hz
Series RMR
Product descriptions from the supplier
Description

Summary

RMR-40.5 unit type SF6 RMU with SF6 load switch as main switch, for whole cabinet is suitable for electric distribution automation and compact also expandable metal close switchgear. It characters in its simple structure, flexible operation, reliable interlocking and convenient installation etc., which can provide the satisfactory technical projects both for different application occasions and users.
With the adoption of sensor technology and the protection relay up to date, plus the advanced technology and flexible assembly project, RMR-40.5 unit type SF6 RMU can completely meet the requirement of continuously variable market. It can take self-produced RMR-40.5 load break switch; also according to the demand of users can be assembled with the internationally top-ranking RCB series vacuum circuit breaker with permanent magnetic mechanism made by AREVA or HD4 type SF6 circuit breaker made by AREVA or HD4 type SF6 circuit breaker made by ABB or with our VSM-40.5 type vacuum circuit breaker with permanent magnetic mechanism. Operational methods for the main switch inside ring main unit can be either manual or electric power driven. And It can meet the requirement of "Four Controls" when matched with FTU and RTU.

Environmental Conditions

Suitable Altitude: 1000m ~ 4000m
Suitable Temperature: -40ºC ~ +45ºC
Relative Humidity: Daily mean ≤95%, monthly mean ≤90%
Gradation of Earthquake Damage: ≤ Level 8

Specification

No.

Item

Unit

Parameter

1

Rated voltage

kV

36

2

Rated frequency

Hz

50/60

3

Rated current

A

1630

4

1min Power frequency withstand voltage

kV

80

5

Lightning impulse withstand voltage

kV

195

6

Rated short circuit breaking current (peak)

kA

50/40

7

Rated active load/close circuit breaking current

A

50/40

8

Rated transferring current

A

800

9

Rated short circuit making current (peak)

kA

50/40

10

Rated cable(line) charging breaking current

A

50 and 10

11

Cable charge breaking current in earthing fault

A

50

12

Rated withstand current (peak)

kA

50/40

13

Short time withstand current (2s)

kA

16

14

Mechanism life

times

2000

Sketch Map

Outdoor SF6 Ring Main Unit with Enclosure-40.5kV

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