PowerVac MV Switchgear Embedded Poles 40.5KV polymer insulator VEP426F

Product Overview

Description

PowerVac MV Switchgear Embedded Poles 40.5KV polymer insulator VEP426F

 

Product advantages: 
1.Once Seal-Exhaust Technique 
2.Free painting technology. 
3.316L Stainless steel, easy-welding and environmental friendly .

4.Good quality &competive price

 

Company advantages:
1.professtional in producing vacuum interrupters from 1.14~40.5KV of more than 100 types
2.Professional experts and technicians
3.strict quality controll system and got 18 national patents

4. enjoys tax preferential policy as a hi-tech enterprise Product advantages:

 

 Main Technical Data: 

 

high voltage enbedded pole for circuit breaker
Main Technical Data
Rated voltage	kv	40.5
Rated current	A	1250A
Rated frequency	Hz	50
Rated short-circuit making current	ka	31.5/40/50
Rated short-time withstand and current (4s)	kv	42
Operations of short-circuit breaking current interruption	times	30
Rated single capacitor bank breaking current	A	630
Rated back to back capacitor bank breaking current	A	400
Short time(1 min)power-frequency withstand voltage	kv	48
Rated lightning impulse withstand voltage(peak)	kA	85
Rated duration of short-circuit	s	4
Mechanical life	times	10000
Part discharge	pc	≤5
Circuit resistance at rated contact force	μΩ	≤18
Shelf life	years	20
Contact erosion limit	mm	3
Rated operationg sequence		o-0.3s-co-180s-co
Mechanical Data Required For Matched Vacuum Switchgear
Rated contact stroke	mm	9±1.0
Rated coneection stroke	mm	4±1.0
Added contact force	N	4200±300
Contact bouncing duration at closing operation	ms	≤2
Out of simultaneity of contact closing and opening	ms	≤1
Max. overtravel	mm	≤2
Note:Rated characteristics can be given on requirments