RMR-40.5 Series Gas Insulated Ring Main Unit

Short Description:

RMR-40.5kV is completely insulated SF6 SAFERIN manufactured by WEIFAN GROUP in China. This product is in conformity with the standards the GB/IEC standard and the design of a high safety combined switch cabinets....

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RMR-40.5kV is completely insulated SF6 SAFERIN (hereinafter short as SF6 insulated Ring Main Unit) This product is in conformity with the standards the GB/IEC standard and the design of a high safety combined switch cabinets.

The system of RMR-40.5kV of combined switch cabinets can be divided into three kinds of unit cabinet:

3 position cable connection unit (Cable switch unit), additional live shows and configuration of surge arresters and grounding fault component. Code C

3 position switch and fuse tripping system and earthing switch interlock system fuse combined electrical unit (Fuse combination unit), additional live shows and configuration of surge arresters and grounding fault component. Code F

3 position switch and vacuum circuit breaker combined appliances unit (Vacuum circuit breaker unit), additional current transformer, live shows and configuration of surge arresters and grounding fault component. Code V

The combination of the current transformer and the microcomputer protection to constitute the basic circuit protection function.

Microcomputer protection using passive protection and CT electric no need of additional PT power supply

Reference standard:

----IEC62271-200

----IEC62271-100

----GB3804-2004

----GB3906-1991

----GB16926-1997

----GB/T11022-1999

Remark:

Fuse combined electrical follow IEC 60420

VCB unit according to IEC 62271-100/GB1984-2003

a) Air temperature: ±40℃; Daily average ≤25°C

b)Altitude above sea level: Maximum installation altitude: 4000m

c)Wind: less than 35m/s;

d)Earthquake intensity: no more than 8 degrees;

No	Item		Unit	Data
1	Rate voltage		KV	36/40.5
2	Power Frequency with stand voltage	Dry		70/80/95
		Wet
	Lightning Impulse withstand Voltage (peak value)			170/185/200
3	Rate current		A	630/1250(C)
4	Rated short circuit breaking current(peak)		KA	20/25(V)31.5F
5	Rated closed-loop breaking current		A	630/1250(C)
6	Rated cable charging interrupting current		A	50©
7	Rated line cable charging interrupting current		A	10©
	Rated off circuit transformer breaking current		A	16
8	Rated naking current(peak)		KA	50(63/80)/2.5(main switch/grounding)
9	Rated withstand current(peak)
10	Rated short time withstand current			16/20/25/31.5
11	Rated short time withstand time		S	3-4
12	Mechanical life		times	C/F(2000)V(10000)

Customized Panel View

Type & functions

W×D×H mm

Mainly for switching kiosk or

cable branch box

1C=500×950×1360mm

2C=1000×950×1360mm

3C=1500×950×1360mm

Extra bushing=140mm

Standard Panel View Unit C	Standard Panel View Unit F	Standard Panel View Unit V

500×950×1950	500(568)×950×1950	500(568)×950×1950
Note: 1, Unit V type LBS can be changed to be mounted on top for feeder cable outgoing system. 2, Unit V type incomer type with 3 nos VTs configuration width is 568mm. 3, Each unit can be connected with top busbar to be combined as Ring main unit