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QLG series SF6 gas-insulated ring main unit

Name: QLG series SF6 gas-insulated ring main unit
Availability: InStock

Negotiable

Bejing Qingchang Power Technology Co., Ltd.

Located Region:

China

Address:

Building C, Floor 10, Room 1111, No. 9 Shangdi 3rd Street, Haidian District, Beijing

Biz Consulting:

010-51662433

E-mail:

qc_power@qch365.com

Online Contact

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The QLG series ring main unit is an SF6 gas-insulated metal-clad switchgear independently developed and produced by our company. This equipment uses SF6 gas as both the insulating and arc-quenching medium. The load switch, vacuum circuit breaker, and live busbar are all sealed within a closed stainless steel container pressurized with SF6 gas. Externally, it adopts American or European standard bushings to connect to incoming and outgoing cables via cable joints, forming a fully insulated, fully enclosed structure that effectively resists flooding and is resistant to contamination, making it suitable for various harsh environments. It is widely used in 12kV ring networks or terminal power supply systems.

Project	Unit	Parameters
Rated voltage	V	12
Rated frequency	Hz	50
Rated current	A	630(1250)
Rated short-time withstand current	kA/s	20/4(25/4)
Rated peak withstand current	kA	50(63)
1min power frequency withstand voltage	kV	42/48
Lightning impulse voltage	kV	75/85
Arcing duration	S	≥ 0.5
Protection grade of primary components (except metering cabinet)	/	IP67
Operating supply voltage	V	DC:24 48 110 220 AC:110 220
Reference size of unit cabinet (W×D×H)	mm	350 × 790 × 1500