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Ningbo Tianan (Group) Co.,Ltd.
Home ProductsHigh Voltage Switchgear

33kV High Voltage Switchgear

China Ningbo Tianan (Group) Co.,Ltd. certification
China Ningbo Tianan (Group) Co.,Ltd. certification
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33kV High Voltage Switchgear

33kV High Voltage Switchgear
33kV High Voltage Switchgear 33kV High Voltage Switchgear

Large Image :  33kV High Voltage Switchgear

Product Details:
Place of Origin: China
Brand Name: Tianan Electric
Certification: ISO9001:2000 CCC
Model Number: XGN65-40.5
Payment & Shipping Terms:
Minimum Order Quantity: 1 unit
Price: Pending
Packaging Details: Nude
Delivery Time: 35 work days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 24000 PCS/year
Detailed Product Description
Shell Protection: IP56 Application: Indoor
Installation: Free-standing Voltage Rating: 33kV
Current Rating: 630A Form: All- Packaged Type
High Light:

33kV High Voltage Switchgear


Free Standing High Voltage Switchgear


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.


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/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
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
19 Circuit resistance

20 LBS cubicle 130
21 LBS+fuse cubicle 250
22 Circuit breaker cubicle 140

Contact Details
Ningbo Tianan (Group) Co.,Ltd.

Contact Person: admin

Tel: +8613858385873

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