General
GW4A-40.5 D(W) isolating switches are kinds of outdoor HV electricity transmission equipments at three phase AC frequency of 50Hz/60Hz. It is used for breaking or connecting HV lines under no loads so that the power lines can be changed and connected and the way the electricity runs is changed. In addition, it can be used to exerise safe electrical insulation for such HV electric apparatuses as bus and breaker.
This product has two insulators with horizontal center breaks. It is openable in the middle and accessible to the grounding switch on one side or two sides. The isolating switch adopts CS14G or CS11 manual operating mechanism ro CJ2 motor based operating mechnism to realize the tri-pole linkage. The grounding switch adopts CS14G manual operating mechanism to actualize tri-pole linkage.
Technical Data  

S/N	Item	Unit	Parameter
1	Rated voltage	kV	40.5
2	Rated insulation level
3	Rated power frequency withstand voltage (1 min)
4	To earth	kV	95
5	Across open breaks	kV	118
6	Rated lightning impulse withstand voltage
7	To earth	kV	185
8	Across open breaks	kV	215
9	Rated frequency	Hz	50/60
10	Rated current	A	1250 2000 25000 3150 4000
11	Rated short-time withstand current	kA	31.5 40 50
12	Rated peak withstand current	kA	80 100 125
13	Rated duration of short circuit Primary switch/ earthing switch	s	4/4
14	Rated terminal mechanical load
15	Horizontal -logntitudinal	N	750
16	Horizontal- vertical	N	500
17	Vertical force	N	750
18	Creepage distance	mm	1013 1256
19	Mechnical endurance	times	5000
20	Motor operating mechanism
21	Model		CJ2
22	Motor voltage	V	AC 380 DC220 DC110
23	cControl circuit's voltage	V	AC 380 AC 220 DC220 DC110
24	Opening time and closing time	s	7+/-1
25	Manual operating mechanism
26	Model		CS14G
27	Electromagnetic lock's voltage	V	AC 380 DC220 DC110