Detailed Product Description
High Voltage Vacuum Circuit Breaker (Recloser,ZW32-12G Series)
General
←rated voltage12kV, 15kV and three-phase AC 50Hz~60Hz. It is used for protecting and controlling distribution systems in transformer substations and industrial and mining enterprises. It can also be used for frequently operation in country electric net-works.
Combining with the disconnecting switch, it can be used as a section switch for switching off/on load current, over-load current and short circuit current in power systems.
It is convenient to transport and has a high cost performance ratio. Using compact and high reliability spring operating mechanism, the operating mechanism structure is simple and has long life up to 2000 times. →
Salient feature
1. Epoxy resin solid insulation,no oil and SF6,harmless to environment
2. Vacuum breaking and longitudinal magnetic-field arc extinction,steady and reliable
3. Outdoor special epoxy resin,ultraviolet ray withstand,flashover proof and aging again
4. CTB-S spring operating mechanism is widely used.The mechanical life is 10000~3000 times
5. With compact structure,small size and light weight.It is easy install and transport it
6. Dealt case body,no corrosion,outline remains good looking long(Choose stainless steel case body)
7. Intelligent computer controller,provides miscellaneous functions
8. It realizes supervisory control,monitoring and SCADA by matchingFTU
Normal working environment
1. Ambient temperature:+70~-30
2. Altitude:≤2000m(If the place is at higher altitude,enhance rated insulation level)
3. Wind pressure:≤700Pa(Equival to wind speed 35m/s)
4. Pollution class:Grade
5. Maximum day temperature difference: ≤35
6. No burning or explosion hazard,chemical corrosion or excessive vibration
Main Technical Parameter
| Item | Unit | Parameter | ||||
| Rated voltage | KV | 12 | 15 | |||
| Frequenty | Hz | 50/60 Hz | ||||
| Rated insulation level | 1min power frequency | Dry | KV | 50 | ||
| withstand voltage | Wet | KV | 45 | |||
| Lightning impulse withstand voltage (peak) | KV | 75 | 110 | |||
| Rated current | A | 200/400/630/1250 | ||||
| Rated short circuit breaking current | KA | 12.5/16/20/25/31.5 | ||||
| Rated operation sequence | O-0.3S-CO-180S-CO | |||||
| Times of breaking rated short circuit breaking current. | times | 30 | ||||
| Rated short circuit making current (peak) | KA | 50/80 | ||||
| Rated peak withstand current | KA | |||||
| Rated short time withstand current | KA | 12.5/16/20/25/31.5 | ||||
| Duration of rated short time withstand current | S | 4 | ||||
| Switch-off time(Rated operating voltage | ms | 2045 | ≤85 | |||
| Switch-on time | 2550 | ≤50 | ||||
| Switch-on power | J | 70 | 90 | |||
| Energy storage motor rated input power | W | ≤40 | ≤50 | |||
| Rated operating voltage and auxiliary circuit rated voltage | V | DC220 | DC220 | |||
| AC220 | AC220 | |||||
| Ambient temperature | -3070 | |||||
| Maximum mechnical and electrical operations | times | 10000/20000/30000 | ||||
