Customization: | Available |
---|---|
Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Manual Type |
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Item | Unit | Parameter | |
Parameters of voltage, current, life | |||
Rated voltage | kV | 40.5 | |
Rated short time power frequency withstand voltage (1min) |
kV | 95 | |
Rated lightning impulse withstand voltage (peak) |
kV | 185 | |
Rated frequency | Hz | 50 | |
Rated current | A | 1250 1600 2000 | |
Rated short-circuit breaking current | kA | 25 | 31.5 |
Rated short-time withstand current (RMS) |
kA | 25 | 31.5 |
Rated peak withstand current | kA | 63 | 80 |
Rated short-circuit closing current | kA | 63 | 80 |
Rated single / back-to-back capacitor bank breaking current |
A | 600/400 | |
Rated short-circuit current duration | S | 4 | |
Rated short-circuit current breaking times |
Times | 20 | |
Rated operating sequence | O-0.3s-CO-180s-CO | ||
The main galvanic circle resistance | μΩ | ≤65 | |
Rated operation voltage | ≌ 220/110 | ||
Mechanical life | Times | ≥ 10000 | |
Mechanical property parameters | |||
Open clearance between contacts | mm | 22±2 | |
Overtravel | mm | 6±1 | |
Contact closing bounce time | ms | ≤3 | |
Three-phase, switching synchronism | ms | ≤2 | |
Average opening speed | m/s | 1.7 ±0.2 | |
Average closing speed | m/s | 0.75 ±0.2 | |
Opening time (rated voltage) | ms | ≤90 | |
Closing time (rated voltage) | ms | ≤60 | |
Allowable wear thickness for dynamic and static contact |
mm | 3 | |