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Product Name: TF314P Vacuum Interrupter Hit: 1157 Category name: Vacuum Interrupter Model: VITF 12/630-20P [Back]
Product Description
| 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 | 75kV,Peak |
| 5.Rated Normal Current | 630A |
| 6.Maximum Contact Resistance at Minimum Closing Force | 25Micro ohms |
| 7.Rated Short-time Withstand Current | 20kA,r.m.s |
| 8.Rated Duration of Short Time Current | 3s |
| 9.Rated Peak Withstand Current | 50kA,Peak |
| 10.Rated Short-Circuit Making Current | 50kA,r.m.s |
| 11.Rated Active Load Breaking Current | 630A |
| 12.Rated Closed-loop Breaking Current | 630A |
| 13.Rated Cable-charging Breaking Current | 10A |
| 14.Rated Breaking Current of Single Capacitor Bank | 630A |
| 15.Rated Breaking Current of Back-to-Back Capacitor Bank | 400A |
| 16.Rated Transferring Current | 3150A |
| MECHANICAL DATA | |
| 1.Interrupter Weight(Approx.) | 1.18kg |
| 2.Moving Part Weight(Approx.) | 0.8kg |
| 3.Closing Force Due to Bellow and Atmospheric | 8.0kgF |
| 4.Force Required to Hold Contacts Open at Full Stroke | 11.8kgF |
| MECHANICAL REQUIREMENTS(REF. VCB) | |
| 1.Contact Stroke | 8±1 mm |
| 2.Opening Speed(average of 75 contact gap) | 1.0-1.4m/Sec |
| 3.Maximum Overtravel During Opening | 2mm |
| 4.Maximun Rebound During Opening | 2mm |
| 5.Closing Speed(average of last 30% contact gap) | 0.6-1.0m/Sec |
| 6.Maximum Contact Bounse Duration(with maximum 2 bounces) | 0.002Sec |
| 7.Rated Contact Compressive Force | 7.0-9.0kgF |
| LIFE (ESTIMATED) | |
| 1.Shelf Life | 20Years |
| 2.Mechanical Life | 10000Operations |
| 3.Contact Erosion Limit | 3mm |
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