145kv Wall Mounted Disconnector

Product Details
Customization: Available
Type: High-voltage
Structure: Three-column Disconnector
Manufacturer/Factory, Trading Company, Group Corporation
Gold Member Since 2017

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Registered Capital
500 RMB
Plant Area
1001~2000 square meters
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Basic Info.

Model NO.
GW7
Installation
Wall Mounted
Operation
Electric
Grounding Mode
Grounding
Certification
ISO
Transport Package
Wooden
Specification
145KV
Trademark
HEMG
Origin
China
Production Capacity
10000

Product Description

145kv Wall Mounted Disconnector

GW7 145kv double breaker Disconnector

 

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

 

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