Yueqing Abbeycon Electric Co., Ltd.

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Tel：+86-577-61776977
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Wechat：abbeycon18066330701
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Email：power@cnvcb.com

DW7 Disconnector

Double Side Break Disconnector GW7

Rated voltage from 72,5 to 550kV;
High short circuit carrying capacity up to 63kA;
Reliable in adverse operating conditions such as high winds and heavy ice;
High performance with reduced phase-to-phase distance;
supplied with 1 or 2 earthing switches mechanically or key interlocked with the disconnector blades;
Corrosion free materials mean virtually no maintenance;
Long mechanical endurance 5000;
Galvanized structural steel base assures high strength and rigid design;
Designed according to IEC,GB.

· Type		GW7－72.5	GW7－145	GW7-252	GW7-363
Rated voltage kV		72.5	126	252	363
Rated frequency Hz		50/60
Rated current A		1250/2000/2500 /3150/4000	1250/2000	2000/2500/3150 /4000/5000	3150/5000
Rated short-duration power frequency withstand voltage(1min ) kV	Across the isolating distance	200	275+85	460+145	510+210
	To earth	160	275	460	510
Rated lightning impulse withstand voltage kV	Across the isolating distance	410	650+120	1050+200	1175+295
Rated lightning impulse withstand voltage kV	To earth	350	650	1050	1175
Rated short-time withstand current kA		40/50	31.5/40	50/63	63
Rated duration of short- circuit s		4		3
Rated peak withstand current kA		100/125	80/100	125/160	160