GW4: Outdoor 3-phase AC HV Disconnecting switch

brief introduction

    • GW4-40.5, 72.5, 126(W) / 630, 1250, 1600, 2000 Distyle Fracture level Rotation Outdoor Three Phase AC High Voltage Disconnecting Switch (hereinafter called switch) is supplied to high voltage circuitry for throwover under no load condition, and is used as electric disconnect for overhaulted high voltage bus, breaker and such high voltage electric device and high voltage circutry with electricity.

    • GW4 Outdoor AC High Voltage Disconnecting Switch conforms to the following standards:

    • GB 1984-89 "AC High Voltage Disconnecting Switch and Etarthing Switch" IEC 129 (1984) "AC High Voltage Disconnecting Switch and Earthing Switch". IEC 694 (1980) "Shared Terms for High Voltage Switch Devices and Control Devices Standards".

Designed to Switch!

Main technical data and mechanical feature data

Main technical data (table1)

No

Rated Value

GW4-40.5

GW4-72.5

GW4-126

1.

Rated voltage

40.5

72.5

126

2.

Rated current

630

1250

1600

2000

630

1250

1600

2000

630

1250

1600

2000

3.

Disconnecting Knife

Rated withstand current(peak value)

50

80

100

100

50

80

100

100

50

80

100

100

Rated short-time withstand current(effective value)KA

20

31.5

40

40

20

31.5

40

40

20

31.5

40

40

duration of rated short circuit (s)

4

4.

shaped earthing knife

rated withstgand current

25

rated short-time withstgand current(effective value)KA

10

duration of rated short circuit(s)

4

5.

shaped earthing knife

rated withstgand current

100

rated short-time withstand current(effective value)KA

40

duration of rated short circuit(s)

4

6.

rated short-time power frequency withstand voltage (effective value) KV

to earth

95

160

230

Across the Isolating distance

118

197

265

7.

rated lighting impulse withstand voltage (effective value) KV

to earth

185

350

550

across the isolating distance

215

385

630

8.

rated terminal static mechanical load N

level vertical

750

750

750

750

1000

1000

level horizontal

500

500

500

500

750

750

vertical force

500

750

500

750

1000

1000

9.

switch generatrix conversion current (generatrix conversion voltage 100V)A

504

1000

1280

1600

504

1000

1280

1600

504

1000

1280

1600

10.

wireless electricity disturbing level

no

no

not over 2000 uV

11.

mechanical endurance

3000

3000

3000

mechanical feature data (table2)

No

rated value

GW4-40.5

GW4-72.5

GW4-126

1.

fracture distance of disconnecting switch after switch off

400

600

1000

2.

to earth insulation distance of conductive part

400

600

1000

3.

main circuit resistence

200

150

95

75

220

155

100

80

245

170

110

90

4.

closing and opening simultaneity of 3 phase main knife

5

8

12

5.

opening and closing time combined electric motor(s)

CJ6:3.75, CJ2-XC:3 +-1

6.

weight of single pole (kg)

125

150

160

190

200

240

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