Product Description
Product Description
ZW7-40.5 series outdoor high vacuum circuit breaker phase AC 50Hz, rated voltage of 40.5kV outdoor high-voltage electrical equipment. Spring mechanism attached to or electromagnetic actuator can remote control electrical sub, sub-gate can also be storage place manually, manually opening and closing. design performance meet GB1984-2003 AC voltage circuit breaker as the national standard, and meet IEC-56 high voltage AC circuit breakers IEC standards .ZW7-40.5 Type vacuum circuit breaker is mainly used for outdoor 35kV power transmission system control and protection also applies to urban and rural power distribution networks and industrial and mining enterprises in the normal operation and short circuit protection purposes. The product overall structure of the pillars for the vase style on insulator mounted within the vacuum interrupter, the main column under the porcelain vase porcelain vase. for frequent operation place. It have good sealing, anti-aging, high pressure, no burning, no explosion, long service life, installation and maintenance and convenient.
Environment condition
1.Ambient Temperature: -40℃ - +40℃
2. Altitude:≤1000m (if the altitude increased, then the insulation must be higher)
3. Wind Pressure: no more than 700Pa (equal to 34m/s wind speed)
4. Earthquake Level: no greater than 8
5. Pollution Level: IV
6. Maximum Temperature Drop: no more than 25°C
Technical parameter
| Name | Unit | Data | ||
| Rated Voltage | kV | 40.5 | ||
| Rated Insulation Level | 1Min Power Frequency withstand Voltage | Dry | 95 | |
| Wet | 80 | |||
| Lightning Impulse withstand Voltage(Peak) | 185 | |||
| Rated Current | A | 630; 1250; 1600 ; 2000 | ||
| Rated Short-circuit Breaking Current | KA | 20; 25;31.5; 40 | ||
| Rated Operating Sequence | O-0.3s-C0-180s-CO | |||
| Rated Short-circuit Opening Times | Times | 20 | ||
| Rated Short-circuit Closing Current(Peak) | kA | 50;63;80 | ||
| Rated Peak withstand Current | 20;25;31.5 | |||
| Rated Short Time withstand Current | kA | 31.5 | ||
| Rated Short-circuit Duration | s | 4 | ||
| Average Closing Speed | m/s | 0.7±0.2 | ||
| Average Opening Speed | 1.5±0.2 | |||
| Closing Time | ≤150 | |||
| Opening Time | ≤60 | |||
| Mechanical Life | Times | 10000 | ||
| Rated Operating Voltage and Auxiliary Circuit Rated Voltage | V | AC/DC110/220 | ||
| DC Current Resistance of Each Phase (Without transformer) | μΩ | ≤100 | ||
| Weight | KG | 1100 | ||