ZF34-252 Three-phase linkage spring operating mechanism
Key attributes
| Brand | Switchgear parts |
| Model NO. | ZF34-252 Three-phase linkage spring operating mechanism |
| Rated voltage | 252kV |
| Series | ZF34 |
Product descriptions from the supplier
CTD-III spring mechanism is a high-power three-phase mechanical operating mechanism that uses springs as energy storage components. The energy storage of the spring is achieved through the rotation device of the motor and the transmission of various gears, and is maintained in an energy storage state through the energy storage maintenance system. When disconnected, the magnetic force of the electromagnetic coil releases stored and maintained energy, causing the spring to release energy. The mechanical transmission unit moves the contacts, thereby achieving the opening and closing operation of the circuit breaker switch. Its structure is symmetrically arranged, with high working power, simple structure, low transmission loss, high stability and reliability.
At present, this institution is mainly used for single-phase interlocking circuit breakers with voltage levels of 220KV and 550KV, high-voltage SF6 circuit breakers, and fully enclosed switchgear (GIS). Its performance meets the requirements of GB1984 "AC High Voltage Circuit Breakers", IEC56 "High Voltage AC Circuit Breakers", and the "Technical Conditions" of this product.
Product Technical Parameters
1. Closing time: 80 ± 20ms
2. Spectral time: 30 ± 5ms
3. Rated voltage of motor: AC220V/DC220V/DC110V
4. Energy storage time under rated voltage: ≤ 15s
5. Institutional output angle: 43 °± 1 °.
6. Institutional travel: 110 ± 1mm.
7. Closing speed: 3 ± 0.5m/s
8. Closing time: 8 ± 0.5m/s
Application scenarios
1. Location of use: Outdoor or indoor.
2. Environmental temperature: Standard configuration -25 ℃~+40 ℃, cold regions -40 ℃~+40 ℃.
3. Humidity: Monthly average ≤ 90%, daily average reaches 100%, no condensation occurs.
4. Solar radiation intensity: ≤ 1000W/m2.
5. Air pollution level: Level IV.
6. Altitude: Normal ≤ 2000m, high altitude ≤ 4500m.
7. Seismic intensity (horizontal acceleration): AG5.
8. Protection level: Indoor: IP5X, Outdoor: IP55.
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