Centre Rotating Double Break isolating switch
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 400 unit/month
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Product Classification and Main Technical Specification
1), product classification
Voltage level: 126kV, 145kV, 170kV, 252kV, 363kV, 420kV, 550kV.
Current level: 2000A, 3150A, 4000A, 5000A
Auxiliary earthing switch type: None earthing switch, left earthing switch, right earthing switch, double earthing switch.
2), Main Technical Specifications
Technical Specifications | GW7-126 | GW7-145 | GW7-170 | |
Rated voltage kV | 126 | 145 | 170 | |
The rated current A | 2000, 3150, 4000 | 2000, 3150, 4000, 5000 | ||
Disconnector | Rated peak withstand current kA | 125 | 125,160 | |
Rated short-time withstand current (RMS)kA | 50 | 50 | 50,63 | |
Rated short circuit duration s | 3 | 3 | 3 | |
Grounding switch | Rated peak withstand current kA | 125 | 125 | 125,160 |
Rated short-time withstand current (RMS)kA | 50 | 50 | 50,63 | |
Rated short circuit duration s | 3 | 3 | 3 | |
Rated short-time power frequency withstand voltage (RMS) kV | to earth | 230 | 275 | 325 |
across isolating point | 230+70 | 315 | 375 | |
Rated lightning impulse withstand voltage (peak) kV | to earth | 550 | 650 | 750 |
across isolating point | 550+100 | 750 | 860 | |
open and close busbar for current transfer | open and close current A | 2500 | 2500 | 2500 |
transfer voltage V | 400 | 400 | 400 | |
open and close times | 100 | 100 | 100 | |
open and close low current | capacitance current A | 1 | 1 | 2 |
inductance current A | 0.5 | 0.5 | 1 | |
Radio interference level | less than 500 μv | |||
Mechanical life | 3000 | 3000 | 3000 | |
rated terminal static mechanic load N | longitudinal level | 1250 | 1500 | 1500 |
Horizontal level | 750 | 1000 | 1000 | |
Vertical force | 100 | 1250 | 1250 | |
rated contact area mm | Longitudinal displacement | 350 | 350 | 350 |
horizontal displacement | 350 | 350 | 350 | |
Vertical displacement | 300 | 300 | 300 | |
All applied in an altitude of 2000m |
Technical Specifications | GW7-252 | GW7-363 | GW7-420 | GW7-550 | |
Rated voltage kV | 252 | 363 | 420 | 550 | |
The rated current A | 2000, 3150, 4000, 5000 | 2000, 3150, 4000, 5000 | 3150, 4000,5000 | ||
Disconnector | Rated peak withstand current kA | 125, 160 | 125, 160 | 125, 160 | 125, 160 |
Rated short-time withstand current (RMS)kA | 50, 63 | 50, 63 | 50, 63 | 50, 63 | |
Rated short circuit duration s | 3 | 3 | 3 | 3 | |
Grounding switch | Rated peak withstand current kA | 125, 160 | 125, 160 | 125, 160 | 125, 160 |
Rated short-time withstand current (RMS)kA | 50, 63 | 50, 63 | 50, 63 | 50, 63 | |
Rated short circuit duration s | 3 | 3 | 3 | 3 | |
Rated short-time power frequency withstand voltage (RMS) kV | to earth | 460 | 510 | 520 | 740 |
across isolating point | 460+145 | 510+210 | 610 | 740+315 | |
Rated lightning impulse withstand voltage (peak) kV | to earth | 1050 | 1175 | 1425 | 1675 |
across isolating point | 1050+200 | 1175+295 | 1425+240 | 1675+450 | |
Rated operation impulse withstand voltage(peak) kV | to earth | none | 950 | 1050 | 1300 |
across isolating point | none | 850+295 | 900+345 | 1175+450 | |
open and close busbar for current transfer | open and close current A | 2500 | |||
transfer voltage V | 427 | ||||
open and close times | 100 | ||||
open and close low current | capacitance current A | 2 | |||
inductance current A | 1 | ||||
Radio interference level | less than 500 μv | ||||
Mechanical life | 3000 | ||||
rated terminal static mechanic load N | longitudinal level | 2000 | 2500 | 4000 | 4000 |
Horizontal level | 1500 | 2000 | 2000 | 2000 | |
Vertical force | 1250 | 1500 | 2000 | 2000 | |
rated contact area mm | Longitudinal displacement | 500 | 500 | 600 | 600 |
horizontal displacement | 500 | 500 | 600 | 600 | |
Vertical displacement | 450 | 450 | 500 | 500 | |
All applied in an altitude of 2000m |
- Q:What are the general requirements for working on distribution equipment?
- When the high voltage line is not cut off, the person in charge of the work shall explain to the whole staff that there is electricity on the line and strengthen the monitoring
- Q:Transmission lines are not electrical equipment?
- Transmission lines are not electrical equipment? The answer is: the device is a function of the assembly
- Q:What is the role of transmission system and distribution system in power grid
- power plant and the load center often separated by long distances, resulting in the problem of power transmission. The power is sent to the user only hydropower area can be fully utilized by high voltage transmission line
- Q:Are electric wires and cables belong to distribution equipment?
- Wire and cable for the transmission of electric (magnetic) energy, information and realize electromagnetic energy conversion of wire products, wire and cable general also referred to as the cable,
- Q:CHINT group in the transmission and distribution equipment to do it?
- The national grid is not purchasing some equipment of CHINT, CHINT group is now very powerful
- Q:Transmission and transformation equipment
- Transmission and transformation of basic electrical equipment, including the main wire, transformers, switchgear, high voltage insulators, etc.
- Q:Rural high voltage transmission line equipment ownership
- High voltage transmission line, one end of the power plant (power), the other end of the number of users in the use of electricity, of course, the current
- Q:What are the two power distribution equipment?
- Primary equipment is the equipment used in the main system of transmission, transmission and distribution
- Q:What are the distribution network equipment
- The transmission function of the power plants issued by the electricity to power consumption areas, or between adjacent grid power to send each other
- Q:High and low voltage distribution equipment
- High voltage distribution equipment: high voltage fuse; high voltage isolation switch; high voltage load switch; high voltage circuit breaker.
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Centre Rotating Double Break isolating switch
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 400 unit/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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