Complete Set 12kv Fully Insulated Gas Insulated Rmu for IEC Urban Power Grid

Complete Set 12kv Fully Insulated Gas Insulated Rmu for IEC Urban Power Grid

MLG 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 12kV 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 lnterlock
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

Paramenter

S/N Item Unit Parameter
	Rated voltage		kv	12	24
	Rated current		A	630/1250	630
3	Rated frequency		HZ	50/60
4	1 min power frequency withstand voltage	Phase-to-phase and Phase-to-ground	kV	42	65
		Isolation fracture	kv	48	79
5	Lightning impulse withstand voltage	Phase-to-phase and Phase-to-ground	kv	75	125
		Fracture	kv	85	145
	Rated SF6 gas pressure (gauge pressure at ring temperature of 20℃)		Mpa	0.04
	SF6 annual leakage rate		%	≤0.01
	Protection rating		SF6 gas tank	IP67
			Cabinet body	IP55
Overall dimensions
	General scheme		mm	350*770*1850
	State-grid standardization		mm	420*750*1950