12kv Embedd Pole for Vacuum Interrupter (318GFR)

Basic Info

Model NO.	318GFR
Poles Number	3
Type	Vacuum
Function	Vacuum
Certification	ISO9001-2000, CQC
Warranty	12 Month
Rated Voltage	12kv
Rated Current	1250A
Rated Lighting Impulse Withstand Voltage	75kv
Rated Short-Circuit Braking Current	25ka
Transport Package	Standard Export Packing.
Specification	Vacuum
Trademark	ZGVE
Origin	Wenzhou
HS Code	8538900000
Production Capacity	180000pieces/Year

Product Description

12KV Sealed Pole For Vacuum Interrupter(318GF)

 

Main Technical Data

Main Technical Data
Rated Voltage	12kV
Rated Current	630/1250A
Rated Frequency	50Hz
Rated Short-time power frequency withstand voltage(1min)	42kV
Rated Lightning impulse withstand voltage	75kv
Rated short-circuit breaking current	25KA
Rated short-circuit making current(peak)	63kA
Breaking operations of rated short circuit breaking current	30 timies
Rated sigle capacitor bank breaking current bank	630A
Rated short-time withstand current	25kA
Rated peak withstand current	63kA
Rated duration of short-circuit	4s
Mechanica life	20000times
Contact closing force due to bellows and atmosphere	120±50N
Counterforce at rated contact stroke	190±60N
Circuit resistance at rated contact force	≤25μΩ
Shelf life	20 years
Contact erosion limit	3mm
Weight of moving parts	≤1.3kg
Mechanical Data Required for matched vacuum switchgear
Rated contact stroke	10±1mm
Average opening speed	1.0±0.25m/s
Average closing speed	0.65±0.15m/s
Added contact force	3150±200N
Contact bouncing duration at closing operation	≤2ms
Contact bouncing bank amplitude of opening operation	≤2mm
Three-pole simultaneity	≤1ms

Dimensional Drawing