40.5KV 72.5KV 126KV 252KVseries high voltage earthing switch

Product Detail

Description

JW6/8 series high voltage earthing switch is composed of three single poles and operating mechanism. Each single pole consists of a base, a pillar insulator and a conducting rod. The conductive rod is installed on the base, and the static contact is installed on the top of the pillar insulator.

The operating mechanism drives the conductive rod to rotate upward from the horizontal position through the transmission element, and is stuck or inserted into the static contact to realize the closing of the ground switch, and the opening process is the opposite.

Main Features

The product structure is simple and reasonable, easy to assemble, transport, install and debug.
The conductive rod is made of high-strength alloy profiles with good electrical conductivity, high mechanical strength, light weight, strong anti-corrosion ability and long service life.

Technical parameter

Specifications		Unit	Value
Model			JW6-40.5	JW6-72.5	JW6-126	JW6-252	JW8-363	JW8-550	JW8-800
Rated voltage		kV	40.5	72.5	126	252	363	550	800
Rated frequency		HZ	50	50	50	50	50	50	50
1min power frequency withstand voltage (r.m.s)		kV	95	160	230	460	510	740	960
Lightning impulse withstand voltage (peak 1.2/50us）		kV	185	380	550	1050	1175	1675	2100
Rated operating impulse withstand voltage（peak 250/2500μs）		kV	\	\	\	\	950	1300	1550
Rated short-time withstand current (r.m.s)		kA	40	40	40	50	63	63	63
Rated peak withstand time		kA	100	100	100	125	160	160	170
Rated short-circuit withstand time		S	4	4	3	3	3	3	3
Wiring terminal static mechanical load	Longitudinal	N	800	800	1250	2000	2000	4000	4000
	Horizontal		500	500	750	1500	1500	2000	3000
	Vertical		750	750	1000	1250	1500	1500	2000
Operational altitude		m	≤2000	≤2000	≤2000	≤2000	≤2000	≤1000	≤2000
Operating pollution class		Class	AG5	AG5	AG5	AG5	AG5	AG5	AG3
Mechanical life		Times	10K	10K	5K	10K	5K	5K	3K
Radio interference level		uV	≤500	≤500	≤500	≤500	≤500	≤500	≤2000
The switching induced current capacity of the earthing switch	Electromagnetic induction current	A	6	6	50/100	80/160	80/400	80/400	80/400
	Electromagnetic induction voltage	kV	100	100	0.5/6	1.4/15	2/35	2/35	2/35
	Electrostatic induction current	A	6	6	0.4/5	1.25/10	2/35	2/50	3/50
	Electrostatic induction voltage	kV	2	2	3/6	5/15	8/50	8/50	12/50

Brand	ROCKWILL
Model NO.	40.5KV 72.5KV 126KV 252KVseries high voltage earthing switch
Rated voltage	363KV
Rated normal current
Series	JW

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