EP325J EP 121250 25J
- Product Description
- Backing from an expert team of professionals, assist us to bring forth to the clients the finest quality Vacuum Interrupter For Reclosers as per their requirements. The Vacuum Interrupter For Reclosers, we offer, are widely acknowledged for their high electrical endurance. Additionally, the Vacuum Interrupter For Reclosers find use in diverse industrial applications due to their high shelf life.
| Rated frequency | 50/60Hz |
| Rated Voltage | 36/40.5kV,r.m.s |
| Rated short-time power-frequency withstand voltage (1 min) | 70/95kV,r.m.s |
| Rated lightning impulse withstand voltage | 170/185kV,Peak |
| Rated Current | 630A |
| Circuit resistance at lowest rated contact force | ≤20Micro ohms |
| Rated short-circuit breaking Current | 12.5kA,r.m.s |
| Rated short-time withstand current | 12.5kA,r.m.s |
| Rated duration of short-circuit | 4s |
| Rated peak withstand current | 31.25kA,r.m.s |
| Rated short-circuit making Current | 31.25kA,r.m.s |
| Max. Dc component | 40.00% |
| *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-0.3(0.5)s-CO- 180s-CO |
Mechanical Data | |
| Interrupter Weight(Approx.) | 4.08kg |
| Weight of movable parts | 2.1kg |
| Closing force due to bellow and atmosphere | 170±40N |
| Force required to hold contacts open at full stroke | |
| Clearance between open contacts | 15±1mm |
| Average opening speed(average of first 75% of contact gap) | 1.5±0.3m/Sec |
| Average closing speed(average of last 30% of contact gap) | 1.1±0.2m/Sec |
| Rated added external contact final force | |
| Contact bouncing duration at closing operation | ≤2ms |
| Closing and Opening non-simultaneity of three-phase Contacts | ≤2ms |
| Maximum Rebound during opening | ≤2mm |
| Electrical Life at Rated Normal Current | |
| Electrical Life at Rated Short Circuit Current | 50 Operations |
| Mechanical Life | 30,000 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"
