Quality Inspection for Stainless Steel Spray Ball - Vacuum Interruption VI 12KV WL-39418 – Simply Buy Detail:
A perfect fit for many applications
Load break switches
• Motor contactors
• Circuit breakers
• Reclosers
• Transportation breakers
• Ring main / pad mount units
• Specialized DC applications
• Generator breakers
• Distribution circuit breakers
• Medium voltage switchgear
ELECTRICAL DATA
ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS |
|
1.Rated Voltage |
12KV |
2.Rated Current |
630/1250A |
3.Rated Frequency |
50Hz |
4.Rated Short-time Power Frequency Withstand Voltage(1min) |
42KV |
5.Rated lightring Impulse Withstand Voltage |
75KV |
6. Rated short-circuit breaking current |
25KA |
7. Rated short-circuit making current(peak) |
63KA |
8.Rated operations of short-circuit breaking current interruption |
30times |
9.Rated single capacitor bank breaking current interruption |
630A |
10.Rated Short-time Withstand current |
25KA |
11.Rated peak withstand current |
63KA |
12. Rated Duration of Short-circuit |
4s |
13. Mechanical Life |
20000times |
14.Contact closing force due to bellows and atmosphere |
120±50N |
15.Counterforce at rated contact stroke |
190±60N |
16. Circuit Resistance at Rated Contact Froce Atmosphere Force |
≤20Micro ohms |
17. Shelf Life |
20Years |
18. Contact Erosion Limit |
3mm |
19.Weight of moving parts |
≤1.5kg |
MECHANICAL REQUIREMENTS(REF. VCB) |
|
1. Rated Contact Stroke |
10±1mm |
2.Opening Speed(average) |
1.0±0.25m/Sec |
3.Closing Speed(average) |
0.65±0.15m/Sec |
4.Added contact force |
2000±100N |
5. Maximum Contact Bounse Duration at closing operation |
≤2ms |
6. Contact Bouncing Bank Amplitude of Opeing Operation |
≤2mm |
7.Three-pole simultaneity |
≤1ms |
Mechanical Data Required For Matched Vacuum Switchgear
Main Technical Specification |
Unit |
Specification |
Rated contact stroke |
mm |
9±1 |
Average opening speed |
m/s |
1.0±0.25 |
Average closing speed |
m/s |
0.65±0.15 |
Added contact force |
N |
900/1300/1600±100 |
Contact bouncing duration at closing operation |
ms |
≤2 |
Contact bouncing bank amplitude of opening operation |
mm |
≤2 |
Three-pole simultaneity |
ms |
≤1 |
Product detail pictures:
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In the past few years, our company absorbed and digested advanced technologies both at home and abroad. Meanwhile, our company staffs a team of experts devoted to the development of Quality Inspection for Stainless Steel Spray Ball - Vacuum Interruption VI 12KV WL-39418 – Simply Buy, The product will supply to all over the world, such as: Portland , Serbia , Roman , We have established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Please feel free to contact us for more details.
By Isabel from Uruguay - 2015.06.05 13:10
The customer service reprersentative explained very detailed, service attitude is very good, reply is very timely and comprehensive, a happy communication! We hope to have a opportunity to cooperate.
By Gladys from Jordan - 2015.09.19 18:37