33kV 36kV gas insulated RMU Safe GIS switchgear Ring Main Unit

Model NO.: XGN65-40.5


Structure: Fixed Board


Form: All- packaged Type


Size: 3 Uint


Shell Material: Stainless Steel


Brand: TIANAN


Standards: IEC, ANSI, GB


Voltage rating: 33kV


Trademark: Tianan Electric


Specification: C-GIS


HS Code: 8537209000




Type: Distribution Metering Box


Certification: ISO9001:2000, VDE, CCC, TUV


Operation Voltage: High Voltage


Application Range: High-rise Buildings


Shell Protection Grade: IP56


Application: Indoor


Installation: Free-standing


Current rating: 630A


Transport Package: Nude


Origin: Ningbo, China








Service condition

A. Altitude ≤1000m (above sea level);

B. Ambient temperature: -25ºC~+40ºC;

C. Wind speed ≤34m/s

D. The spot should have no regularly exquisite shake.




Specifications






ØOn our nation 40.5Kv transmission line, there is still massive adoption of various fuses. For the terminal station especially,because of its low rated current and rated short-circuit current,like "waste one's talent on a petty job" , far from economy.



ØOverseas, Load Switch or load switch and fuse composed electric apparatus are widely adopted for its economy, convenience ,safety, and dependability. While for our country, so far, no SF6 load switch is available on 40.5kV voltage degree. The only choice is using 36kV air load switch from other country, but its insulation level doesn't meet our nation standard,it still unsuited for the running on our nation grid.


ØFor the above reasons,we developed XGN65-40.5 Indoor HV SF6 Ring Main Unit.


Technical data

S/N	Item	Unit	Parameter
1	Rated voltage:	kV	36, 38, 40.5
2	Rated frequency:	Hz	50/60
3	1 min power frequency withstand voltage phase-phase,phase -earth/isolating distance :	kV	70/80, 70/80, 95/110
4	Lighting impulsive withstand voltage phase-phase,phase-earth/isolating distance:		170/195, 170/195, 185/215
5	Rated current:	A	630, 1250
6	Rated current of fuse:	A	3.15-50
7	Rated short-time withstand current of main circuit, earth circuit :	kA	20
8	Rated short-time withstand current of main circuit, earth circuit :	kA	20
9	Rated short-circuit making current:	kA	50
10	Load switch full capacity breaking times:	times	100
11	Rated short-circuit breaking current of fuse :	kA	31.5
12	Rated transfer current:	A	1000
13	Rated SF6 gas pressure (ambient tempeture20ºC):	Mpa	0.04
14	SF6 gas min. pressure (gauge pressure at 20ºC)	Mpa	0.02
15	Gas annual leakage rate		<0.2%
16	Mechanical lifetime :	times	5000
17	Protection degree of gas filled tank	IP	67
18	Protection dgree of mechanism compartment, instrument compartment and cable compartmnet	IP	3X
19	Circuit resistance
20	LBS cubicle	uΩ	130
21	LBS+fuse cubicle	uΩ	250
22	Circuit Breaker cubicle	uΩ	140

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Product Categories : Ring Main Unit (RMU)