GW4 Series Outdoor Isolation Switch

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Description

Overview

GW4 series outdoor exchange of high-pressure isolation switch (Hereinafter referred to as the isolation switch). Applied to a frequency of 60Hz to 40.5, 72.5, 126kv rated voltage of the electricity system, As a non-load-voltage circuit combined with time. One pollution-preventing isolation switch to meet the requirements of users re-dirty areas and can be effective in isolation switch operation of the emerging problem of flashover.The isolation switches and switch attached to the ground, each equipped with an independent actuator, in order to ensure that the isolation switch and switch between the two ground operation in the right order, the bulk of products equipped with a mechanical interlocking device, 35-110KV switch grounding into type l and type ll, 145 and 220kv belong to ll , ll-moving earth switch and thermal stability of the value of the same isolation switch

Operating Conditions

1. Altitude: ≤ 3000 meters

2. The environment temperature: upper limit +40℃, lower limit -35℃

3. Wind speed: < 34m/s

4. Seismic intensity does not exceed 8 degree

5. lcing the thickness of not more than 10mm

6. There is no fire, explosion hazard, serious pollution, Places subject to chemical corrosion and severe vibration.

Technical Data

Item		Unit	Parameter
Rated voltage		kV	35			63
The maximum voltage		kV	40.5			72.5
Rated current		A	630	1250	1600 2000	630	1250	1600 2000	2500
Moving dynamic current(peak)		kA	50	80	100	50	80	100	125
Heat dynamic current(virtual value)		kA/s	20/4	31.5/4	40/2	20/4	31.5/4	40/2	50/2
One minute power frequency withstand voltage	earth	kV	80			140
	break		90			160
Lighting impulse withstand voltage	earth		185			215
	break		325			375
rated terminal static mechanical load		N	500
Weight		Kg	120	145	170	180	200	225	260

Item		Unit	Parameter
Rated voltage		kV	110			145			220
The maximum voltage		kV	126			145			252
Rated current		A	630	1250	1600 2000	1250	1600 2000	3150	1250	1600 2000 2500	3150
Moving dynamic current(peak)		kA	50	80	100	80	100	125	100	125
Heat dynamic current(virtual value)		kA/s	20/4	31.5/4	40/2	31.5/4	40/2	50/3	40/3	50/3
One minute power frequency withstand voltage	earth	kV	230			275			450	/
	break		260			315			530	/
Lighting impulse withstand voltage	earth		550			650			1050	/
	break		630			750			1200	/
rated terminal static mechanical load		N	750						1000	/
Weight		Kg	200	230	260	300	320	380	630~710	650~750	690~780