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Outdoor High Voltage Disconnecting Switch

Outdoor Disconnecting Switch

Outdoor Disconnecting Switch

Mostly purpose GW4 type outdoor high-voltage disconnection switch is used in AC three-phase outdoor high-voltage electric equipment with frequency of 50Hz, applied for circuitry’s switching on or off in condition with voltage but no load, electric disconnecting between electric equipment under......

Mostly purpose
GW4 type outdoor high-voltage disconnection switch is used in AC three-phase outdoor high-voltage electric equipment with frequency of 50Hz, applied for circuitry’s switching on or off in condition with voltage but no load, electric disconnecting between electric equipment under test(such as high voltage busbar, circuit breaker)and charged high voltage circuitry, as well as switching on or off of small capacitance or inductive current. When the switch blade is in normal switching off powition, it can offer an insulation spacing complying with the safety requirement. It is widely used for35-220kV power substation.

Technic Parameter

Item

GW4-70.2

GW4-70.2

GW4-126

GW4-126G

GW4-145

Rated voltage

40.5

72.5

126

126

145

Rated current

630 1250 2000 2500

630 1250 2000 2500 4000

630 1250 2000 2500

630 1250

1250 2000 2500

Rated short time withstand current(Effective value)

20 31.5 40(46)

20 31.5 40(46)

20 31.5 40(46)

20 31.5

20 31.5 40(46)

Rated peak value withstand current(Peak value)

50 80 100(104)

50 80 100(104)

50 80 100(104)

50 80

50 80 100(104)

Rated short time power frequency(Effective value)

Over the ground

80

140

185(230)

185

375

Fracture

110

160

210(265)

210

315

Rated lightning impulse withstand voltage(Peak value)

Over the ground

185

325

450(550)

450

650

Fracture

215

375

520(630)

550

750

Wire the horizontal pulling force of end amount

490(735)

735

735

735

960

Monopole weight

80

200

240

300

300


Externality & Build in Dimension

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