35kV Series SF6 Gas Insulated RMU

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.

GET A QUOTE

Detail

Place of Origin:	China
Insulation Method:	Gas Insulated
Voltage Level:	35kV
Highlight:	Gas insulated rmu, 35kV gas insulated rmu, 35kV sf6 ring main unit

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

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.