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10-24kV Outdoor GIS Switchgear – Ring Main Unit RMU
  • Details
  • Specification Parameters


6c76584c21341d01660957bbe02913a.pngProduct Introduction

Cost-Effective Side & Rear Cable Entry RMU, its cables enter and exit from the side and rear, and there are no cable entries or exits on the front.

It is fully weatherproof with IP54 for outdoor or indoor applications.

It is extensible and highly flexible unit used in a wide range of applications including distribution switchboards, transformer substations, ring distribution networks and high voltage connections to industrial & commercial sites. The units are developed to suit customer requirements for connection, supply, protection and sectionalization.

SF6 insulated with vacuum circuit breaker protection lateral and rear cable termination, SF6 gas insulated RMU.

It 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.

It can be supplied as a 3-way or 4-way configurations with additional equipment according to customer specification. It can be freely combined according to customer configurations (Such as CVC, CCV, CVV, CFF, CCC, VVV, CCVV etc.). They are suitable for most switching applications in 10/24 kV distribution networks.

The concept offers a choice of either switch-fuse combination or circuit-breaker with relay for protection of the transformer. It can be supplied with an integrated remote control and monitoring unit.

This product is in conformity with the standards: IEC62271-200, IEC60420.
Fully interlocked operaon with padlocking facility ensure operator safety and prevent incorrect operation.

Freestanding and transformer mounted type.

Adjustable stainless steel legs.

IP54 for outdoor installaon without requiring a kiosk.

All operations are from the front of the units.

Includes fully extensible and non-extensible options for secondary distribution applications up to24 kV and 630 A ratings.

Internal arc protection including cable boxes. Extensible from both the sides.

Maintenance free and low environmental impact.

Locally-mounted lightning arresters.

 

Use Conditions

1.Air temperature: Maximum temperature: +45; Minimum temperature: -20.

 

2.Humidity: Monthly average humidity 95%; Daily average humidity 90%.

 

3.Altitude above sea level: Maximum installation altitude: 2500m.

 

4.Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.

 

5.No frequent violent shake.

Switchgear Size

图片16-6 (1).png

The Below parameters are typical data; if the existing styles do not meet your specific demands, please contact us for a custom design. We have significant personalized customization development and production skills, allowing us to provide tailored solutions to customers all over the world.

No.

Item

Unit

Value (12 kV)

Value (17.5 kV)

1

Rated voltage

kV

12

17.5

2

Insulating medium


SF6

SF6

3

Rated frequency

Hz

1

1

4

Rated current

A

400/630

400/630

5

Temperature rise test current

A

400/630

400/630

6

Rated power frequency 1min withstand voltage (phase to ground)

kV

42

38

7

Rated lightning impulse withstand voltage peak value (1.2/54.6μs) (phase to ground)

kV

75

95

8

Rated short circuit breaking current

kA

20

21

9

Rated short circuit making current (peak value)

kA

50

54.6

10

Rated short-time withstand current and duration

kA/s

20/4

21/1

11

Rated peak withstand current

kA

50

54.6

12

Arcing duration

S

1

1

13

Number of breaking times under rated active load conditions

100

100

14

Auxiliary and control circuit short-time power frequency withstand voltage

kV

2

2

15

Power supply

V

DC 24, 48, 110, 220

DC 24, 48, 110, 220


Control circuit

V

DC 24, 48, 110, 220

DC 24, 48, 110, 220


Auxiliary circuit

V

DC 24, 48, 110, 220

DC 24, 48, 110, 220


Energy storage circuit

V

DC 24, 48, 110, 220

DC 24, 48, 110, 220

16

SF6 gas annual leakage rate


0.1%

0.1%

17

Protection level


IP54

IP54


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Contact Info

  • Xiamen Reach Tech Co., Ltd.  
  • Factory Building 2, No. 552 Tongji North Road, Tong'an District, Xiamen City, Fujian Province, China 361000
    Unit 201, No. 15, Tongfu Beili, Tong'an District, Xiamen City, Fujian Province, China 361000
  • Phone: +86 18150100999
  • Wechat: H_-1998
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  • Mail: contact@reach-official.com
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