12kv HV AC metal closed ring switchgear RMU

RMU fixed metal closed switchgear (referred to as ring network cabinet) is rated voltage 12kV rated frequency 50Hz AC high voltage complete sets of electrical equipment, mainly suitable for three-phase AC ring network, terminal distribution network and industrial electrical equipment, plays the role of accepting, distributing electric energy and protection, it is also suitable for loading substations.

General:

It can distribute FN12-10 type pressure load switch and combined electrical appliance, and can also be equipped with FZN25-12 type vacuum load switch and combined electrical appliance.And the installation size is exactly the same. Small size, maintenance-free, three-phase linkage structure, with obvious isolation fracture.

Service Environment

The maximum ambient temperature is not higher than +40℃, and the minimum temperature is not lower than -25℃.
The daily average relative temperature is not more than 95%, and the monthly average is not more than 90%.
The altitude does not exceed 1000 meters.
The intensity of the earthquake is no more than 8.
No conductive dust, corrosive gas and water vapor.
No fire, explosion danger, serious pollution and violent vibration places.

Key Feature

Fully assembled structure, light and beautiful, can be installed in any combination
It can be operated manually and electrically, and has remote control function
Use linkage protection insulated valve to shield live contacts to ensure personal safety
The front door is fitted with a viewing window

Technical Data

Name		Unit	Data
			FN12-10	FZN25-12
Rated voltage		kV	12
1min power frequency withstand voltage			To earth、phase to phase42；between open contacts48
lightning impulse voltage (peak)			To earth、phase to phase75；between open contacts85
Rated frequency		Hz	50
Rated current of main bus		A	630
Load switch	Rated current		630
	Rated current life	Times	≧100
	Disconnect no-load transformer capacity	kVA	1250
	Rated heat stable current	kA/s	20/4；earthing switch20/2
	Rated dynamic stable current (peak)	kA	50
	Rated short circuit closing current (peak)		50
Combination apparatus	Rated current of the fuse	A	100
	Rated transfer current		1500	2000
	Rated short-circuit breaking current	kA	31.5
	Fitted with fuse model		S□LAJ-12(XRNT□-10)
Mechanical life		Times	2000	10000
Auxiliary circuit 1min power frequency voltage		kV	2
Operating voltage of electric actuator		V	ac-DC 220、110
Class of protection			IP20
Overall dimensions (W x D x H)		mm	650(850)x900x2000(2200)