GW5 Outdoor Isolation Switch

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GW5 Outdoor Isolation Switch

GW5 outdoor MV isolating switch is used for three-phase AC 50Hz outdoor high voltage electrical equipment, used for the line to switching under voltage pressed no load condition, and electrical isolation the maintenanced high voltage bus, circuit breakers and other electrical equipment and charged high voltage line, can also be used for the opening and closing small capacitance or inductance current. When the knife in the normal break position, can provide a insulation distance consistent with safety requirements. Widely used in 35~110kV substation.

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Product Details

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product description01

Operating conditions

1. The ambient temperature: upper limit +40℃,lower limit -40 ℃;
2. Altitude: no more than 3000m;
3. Wind speed: not more than 35m/s;
4. Earthquake intensity: do not exceed 8 degree;
5. Pollution level: no more than III;
6. No severe vibration, no corrosive gas, no fire, no explosion danger place.

Technical data

Item			Parameters
		Unit	GW5- 40.5	GW5-72.5	GW5-126	GW5-145
Rated voltage		kV	40.5	72.5	126	145
Rated current		A	630/1250/1600/2000
Rated frequency		Hz	50
Disconnector	Rated peak withstand current	kA	50/80/100
	Rated short-time withstand current	kA	20/31.5/40
	Rated short circuit duration	s	4
I type earth knife	Rated peak withstand current	kA	25
	Rated short-time withstand current	kA	10
	Rated short circuit duration	s	4
II type earth knife	Rated peak withstand current	kA	100
	Rated short-time withstand current	kA	40
	Rated short circuit duration	s	2

Overall and mounting dimensions(mm)

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1. Connecting terminal
2. Main contact
3. Main contact finger
4. Porcelain insulator
5. Switch base
6. Cross-pin type joint
7. The main knife vertical rod
(1 galvanized steel user owned)
8. Friction plate
9. The main operating mechanism
(CJ6 electric operation or CS17 manual operation)
10. The main knife three-phase linkage rod

The main knife handle at the closing position
The main knife handle is in the off position
Earthing switch operation handle is in the closing position
Earthing switch operation handle is in the off position