1. ZN85 type indoor 33kv 35kv Electrical Vacuum Interrupter Circuit Breaker for KYN61 switchgear
ZN85 type indoor 33kv 35kv Electrical Vacuum Interrupter Circuit Breaker for KYN61 switchgear is suitable for indoor high voltage equipment with rated voltage of 40.5kV and three-phase AC 50Hz. It can be used as industrial and mining enterprises, power plants and substations as load current, overload current and short circuit. For current use, it is suitable for frequent operation.
2. Environmental conditions:
1. Altitude: the altitude does not exceed 2000m;
2. Ambient temperature: no higher than +40℃, not lower than -25℃;
3. Relative humidity: the daily average does not exceed 95%, and the monthly average does not exceed 90%;
4. Earthquake intensity: no more than 8 degrees;
5. Locations without fire, explosion hazard, serious contamination, chemical corrosion and severe vibration.
3. Structural features:
1. The circuit breaker adopts the arc extinguishing chamber on the upper part, and the structure of the whole structure under the mechanism is favorable for debugging;
2. It adopts composite insulation structure of air and organic materials, which is compact in design and light in weight;
3. It can be equipped with the vacuum interrupter of Cutler-Hammer Company of the United States and the domestic ZMD vacuum interrupter. The two arc extinguishing chambers adopt the longitudinal magnetic field arc extinguishing, low interception and good asymmetric breaking performance.
4. Simple spring operating mechanism, 10,000 operations free of maintenance.
5. Screw drive mechanism, labor-saving, stable, self-locking performance.
4. main technical parameters
| Item | Unit | Value | | Rated Voltage |
kV
| 40.5 | | Rated Frequency | Hz | 50/60 | | Rated Power Frequency Withstand Voltage(1min) | kV | 95 | | Rated Lightning Impulse Withstand Voltage(Peak) | kV | 185 | | Rated Current | A | 630/1250/1600/200/2500 | | Rated Peak Withstand Current Rated Short Circuit Closing Current | kA | 25/31.5 | | Rated Short Circuit Current Breaking Times | Times | 20 | | Rated Short-circuit Duration | s | 4 | | Rated Operation Sequence | | O-0.3s-CO-180s-CO | | Mechanical Life | Times | 10000 | | Rated Operation Voltage | V | DC110/220;AC110/220 | | Rated Single/ Back-to-back Capacitor Group Breaking Current | A | 630/400 | | | |
5. Photo and drawing
6. FAQ
1. Send the technical data, better for all useful information; we will make a good recommendation.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
3. Usually shipped by sea, small order or urgent order we can send you by air.
4. All our activities are accredited to ISO 14001:2015 and IEC standard.
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Indoor 33kv 35kv Electrical Vacuum Interrupter Circuit Breaker Images
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