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35kV QLG Series SF6 Gas Insulated RMU
35kV QLG Series SF6 Gas Insulated RMU
Specifications
Insulation method :
gas insulated
voltage level :
35kV
Place of Origin :
China
Brand Name :
Qingchang
Description

Typical primary plan

35kV QLG Series SF6 Gas Insulated RMU

35kV QLG Series SF6 Gas Insulated RMU

Rated Parameters

S/N Name Unit Load switchgear C Circuit breaker cabinet V Combined electric cabinet F
1 Rated voltage kV 35.0
2 Rated frequency Hz 50/60
3 Rated current A 630 630 1250 80
4 Rated short-time
power frequency
withstand voltage		 Phase-to-phase and
Phase-to-earth		 kV 70/95
Across isolating distance kV 80/118
5 Rated lightning
impulse
withstand voltage		 Phase-to-phase and
Phase-to-earth		 kV 170/185
Across isolating distance kV 195/215
6 Rated peak withstand current kA 50 50 50/63
7 Rated short-time withstand current kA 20 20 20/25
8 Rated short circuit duration s 4 4 4/2 /
9 Rated short circuit breaking current kA / 20 20/25 31.5
10 Closing current (peak) kA 50 50 50/63 80
11 Electrical life rating
(main switchgrounding switch)		 / E2 /
12 gas rated pressure (20℃) MPa 0.045
13 annual gas leakage rate % ≤0.01
14 Mechanical endurance for circuit breaker Time(s) / 10000 /
15 Mechanical endurance for load switch Time(s) 5000 / 5000
16 Mechanical endurance for isolating switch Time (s) / 3000 /
17 Mechanical endurance for grounding switch Time (s) 3000 3000 3000
18 Gas tank protection degree / IP67
19 Shell protection degree / IP4X

Product Overview

QLG series ring main unit is a SF6 gas insulated metal enclosed switchgear independently developed and produced by our company. The equipment uses SF6 gas as insulation and breaking medium, and the load switch, vacuum circuit breaker and live busbar are all sealed in a closed stainless steel container filled with a certain pressure. The external American standard / European standard bushing is connected with the incoming and outgoing cable through the cable joint to form a fully insulated and fully closed structure. This effectively prevents flooding and withstands contamination, making it suitable for various harsh environments. The product is widely used in 35kV ring network or terminal power supply system.

Product Features

Modular and expandable

The use of expansion modules in coordination allows for up to five modules with the same gas tank. Beyond that, further expansion is achieved through busbar expansion.

Maintenance Free

SF6 gas integrated structure, with moving and static contacts, arc extinguishing chamber, busbar sealed in the same gas tank. It is designed for a maintenance-free life of 30 years.

Reliable Mechanical Interlock

It has a variety of reliable mechanical interlocks, and there are analog signs on the cabinet panel to fully ensure the safety of operation.

Automatic and Intelligent

Cooperate with DTU to realize automatic and intelligent control.

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35kV QLG Series SF6 Gas Insulated RMU

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Product Detail
Insulation method :
gas insulated
voltage level :
35kV
Place of Origin :
China
Brand Name :
Qingchang
Contact Supplier
35kV QLG Series SF6 Gas Insulated RMU

Beijing Qingchang power Technology Co.,Ltd

Verified Supplier
1 Years
beijing, beijing
Since 1999
Business Type :
Manufacturer, Seller
Main Products :
QEFG Series Eco-friendly Gas Insulated RMU, QLG Series SF6 Gas Insulated RMU, Eco-friendly Gas Insulated Metal-enclosed Switchgear (C-GIS)
Employee Number :
300~400
Certification Level :
Verified Supplier
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