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33kV Indoor RMU Ring Main Unit / C - GIS High Voltage Gas Insulated Switchgear 

Categories High Voltage Switchgear
Brand Name: Tianan Electric
Model Number: XGN65-40.5
Certification: ISO9001:2000 CCC
Place of Origin: China
MOQ: 1 unit
Price: Pending
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 24000 PCS/year
Delivery Time: 35 work days
Packaging Details: Nude
Shell Protection: IP56
Application: Indoor
Installation: Free-standing
Voltage rating: 33kV
Current rating: 630A
Form: All- packaged Type
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33kV Indoor RMU Ring Main Unit / C - GIS High Voltage Gas Insulated Switchgear 

33kV Indoor Rmu Ring Main Unit / C - GIS gas insulated switchgear


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:

On 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 pretty job" , far from economy.


Load switch or load switch and fuse composed electric apparatus are widely adopted abroad for its economy, convenience ,safety, and dependability . For our country, SF6 load switch is unavailable on 40.5kV voltage degree. The only choice is using 36kV air load switch from other country,however, its insulation level doesn't meet our nation standard,it still unsuited for the running on our nation grid.


For the above reasons,we developed XGN65-40.5 Indoor HV SF6 Ring main unit.


Technical data

S/NItemUnitParameter
1Rated voltage:kV36, 38, 40.5
2Rated frequency:Hz50/60
31 min power frequency withstand voltage
phase-phase,phase -earth/isolating distance :
kV70/80, 70/80, 95/110
4Lighting impulsive withstand voltage
phase-phase,phase-earth/isolating distance:

170/195, 170/195, 185/215
5Rated current:A630, 1250
6Rated current of fuse:A3.15-50
7Rated short-time withstand current of main circuit, earth circuit :kA20
8Rated short-time withstand current of main circuit, earth circuit :kA20
9Rated short-circuit making current:kA50
10Load switch full capacity breaking times:times100
11Rated short-circuit breaking current of fuse :kA31.5
12Rated transfer current:A1000
13Rated SF6 gas pressure (ambient tempeture20ºC):Mpa0.04
14SF6 gas min. pressure (gauge pressure at 20ºC)Mpa0.02
15Gas annual leakage rate
<0.2%
16Mechanical lifetime :times5000
17Protection degree of gas filled tankIP67
18Protection dgree of mechanism compartment,
instrument compartment and cable compartmnet
IP3X
19Circuit resistance

20LBS cubicle130
21LBS+fuse cubicle250
22Circuit breaker cubicle140
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