vacuum interrupter

CERAMIC VACUUM INTERRUPTER FOR CIRCUIT-BREAKERMAIN TECHNICAL DATA TYPE:TD-12/1000-25(2332)Data Unit Value Rated VoltagekV12Lightning Impulse Withstand Voltage (Peak)kV75Short-time (1min) Power-frequency Withstand VoltagekV20/42Rate FrequencyHz50Rated CurrentA1000Rated Short-time Withstand CurrentkA25Rated Duration of Short-circuits4Rated Peak Withstand CurrentkA63Rated Short-circuit Making CurrentkA63Rated Short-circuit Breaking CurrentkA25Max. Dc component50%Switch Operations of Rated Short-circuit Breaking CurrentOperations 20Rated Single Capacitor Bank Breaking CurrentA400Rated Back-to-back Capacitor Bank Breaking Current A400Mechanical EnduranceOperations 2000Clearance Between Open Contactsmm9±1Contact Closed Force Due to Bellows and AtmosphereN50±25Counterforce of Contact at Full StrokeN160±25Circuit Resistance at Min. Rated Contact ForceμΩ≤25Contact Limit Erosionmm3Mass of Moving Partskg0.5±0.1Internal Gas PressurePa<1.33×10-3 Shelf LifeYear20Rated Operating SequenceOpen 0.3s - CO 180s COMECHANICAL DATA OF VACUUM SWITCH EQUIPPED WITH THE INTERRUPTERSDataUnit ValueAverageOpeningSpeed(first 6mm)m/s1.1±0.2Average Closing Speed(last 6mm)m/s0.6±0.2Contact Bounce Duration at Closing Operationms≤2Out of Simultaneity of Contact Closing and Openingms≤1Rated Contact PressureN1900±100 Max. rebound of contact at opening Operationmm≤2Overtravel during Openingmm≤1 Note 1: Within transformer oil or equivalent isolation medium. Note 2: Rated characteristics to be given on request. Note 3: Meets or exceeds the electrical endurance requirements of class E2 for auto-reclosing duty per IEC 62271-100 and GB1984-2003.