Модель: VITF 12/1250-20P
Вакуумные прерыватель для коммутатора выключатель нагрузки
VITF 12/1250-20P
ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS | |
1.Rated Frequency | 50/60Hz |
2.Rated Maximum Line to Line Voltage | 12kV,r.m.s |
3.Rated Power Frequency Withstand Voltage:Air | 42kV,r.m.s |
4.Rated Impulse Withstand Voltage:Air | 95kV,Peak |
5.Rated Normal Current | 1250A |
6.Maximum Contact Resistance at Minimum Closing Force | 35Micro ohms |
7.Rated Short-Time Withstand Current | 20kA,r.m.s |
8.Rated Duration of Short Time Current | 4s |
9.Rated Peak Withstand Current | 50kA,r.m.s |
10.Rated Short-Circuit Making Current | 50kA,Peak |
11.Rated Active Load Breaking Current | 630A |
12.Rated Closed-Loop Breaking Current | 630A |
13.Rated Capacity of No-Load Transformer | 100A |
14.Rated Cable-Charging Breaking Current | 10A |
15.*Rated Breaking Current of Single Capacitor Bank | 400A |
16.*Rated Breaking Current of Back-to-Back Capacitor Bank | 400A |
MECHANICAL DATA | |
1.Interrupter Weight(Approx.) | 1.18kg |
2.Moving Part Weight(Approx.) | 0.58kg |
3.Closing Force due to Bellow and Atmospheric | 6030N |
4.Force Required to Hold Contacts open at Full Stroke | 13040N |
MECHANICAL REQUIREMENTS(REF. VCB) | |
1.Contact Stroke | 91 mm |
2.Opening Speed(average of 75 contact gap) | 1.00.2m/Sec |
3.Maximum Overtravel During Opening | 2mm |
4.Maximun Rebound During Opening | 2mm |
5.Closing Speed(average of last 30% contact gap) | 0.60.2m/Sec |
6.Maximum Contact Bounse Duration(with maximum 2 bounces) | 2ms |
7.Rated Contact Compressive Force | 1000100N |
8.Added external contact force at contact touch point | 75080N |
LIFE (ESTIMATED) | |
1.Mechanical Life | 10,000Operations |
2.Contact Erosion Limit | 3mm |
3.Shelf Life | 20Years |
1.Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-200 and JB 8738-2008. 2.* Rated Characteristics to be given on request |
Группа Продуктов : Вакуумные прерыватель