TD411B VITD 24/630-12.5B
- Product Description
- We bring forth the best quality Vacuum Interrupter For Reclosers to the valued clients. Being sourced from the credible vendors of the markets, Vacuum Interrupter For Reclosers are assured of their fabrication using the superior quality materials. High electrical endurance, high shelf life and high mechanical life are some of the commendable attributes of Vacuum Interrupter For Reclosers, which we offer.
| Rated Frequency | 50/60Hz |
| Rated Maximum Line to Line Voltage | 24kV,r.m.s |
| Rated Power Frequency Withstand Voltage : Air | 79kV,r.m.s |
| Rated Impulse Withstand Voltage : Air | 125kV,Peak |
| Rated Normal Current | 560A |
| Rated Short- Circuit Current ( 3 Phase Symmetrical Basis) | 12.5kA,r.m.s |
| Percentage D.C. Component of Rated S.C. Breaking Current | 50.00% |
| Rated Short-Circuit Making Current | 31.25kA,Peak |
| Rated Duration of Short Time Current | 4s |
| Rated Short-Time Withstand Current | 12.5kA,r.m.s |
| Rated Peak Withstand Current | 31.25kA,r.m.s |
| *Maximum Contact Resistance at Minimum Closing Force | 18Micro ohms |
| *Rated Breaking Current of Single Capacitor Bank | 630A,r.m.s |
| *Rated Breaking Current of Back-to-Back Capacitor Bank | 400A,r.m.s |
| Rated operating sequence | o-0.3s-co-180s-co |
| Interrupter Weight (Approx.) | 2.96kg |
| Moving Part Weight (Approx.) | 1.1kg |
| Closing Force due to Bellow and Atmospheric | 120±50N |
| Force Required to Hold Contacts open at Full Stroke | |
| Contact Stroke | 13±1 mm |
| Opening Speed (average of 75 contact gap) | 1.5±0.2m/Sec |
| Maximum Overtravel During Opening | 2mm |
| Maximun Rebound During Opening | |
| Closing Speed (average of last 30% contact gap) | 0.9±0.2m/Sec |
| Maximum Contact Bounse Duration (with maximum 2 bounces) | ≤2ms |
| Rated Contact Compressive Force | 2000±200N |
| Closing and Opening non-simultaneity of three-phase Contacts | ≤2ms |
| Electrical Life at Rated Normal Current | 50,00 0Operations |
| Electrical Life at Rated Short Circuit Current | 100 Operations |
| Mechanical Life | 50,000 Operations |
| Contact Erosion Limit | 3mm |
| Shelf Life | 20Years |
Note
- Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-200 and JB 8738-2008.
- * Rated Characteristics to be given on request"
