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FZW28-12F series AC high voltage demarcation vacuum automatic recloser
Published in2018-08-04
2227 ViewsDetailed description
Product description
FZW28-12F series AC high voltage demarcation vacuum automatic recloser consists of 3 parts: vacuum circuit breaker; controller; control power source.
Adopt microprocessor and digital display panel, convenient for human-computer interaction. All parameters can be adjusted, adding GPRS,GSM communication systems make closing & breaking operation and remote communication via mobile.
Application conditions
Ambient temperature: -40oC ~ + 85oC
Altitude ≤ 2000m
Max wind speed ≤25m/s
Max diary temperature difference: 25oC
No frequent horrible sharp shock
Features
1. Automatically switch single-phase wiring earth failure
2. Automatically isolate short-circuit between phase
3. Fast locating failure point
4. Monitoring circuit voltage, current, frequency and power, can transfer to managing center.
5. Suitable for RMU net.
Main technical parameters
| name | unit | parameter |
| Work power | V | 50HZ,AC220V |
| ≤20% | ||
| Power Waste | W | 6W |
| Voltage transformer | V.VA | 250V,0.05VA |
| Current transformer | A.VA | 1A,0.1VA |
| The zero sequence current transformer | A.VA | 1A,0.1VA |
| Output contact capacity | A.V | 2A/230V DC |
| Load control | S | 60S |
| Lock time | MS | <600A:160MS;>600A |
| Zero sequence current setting | A | 0.4A-2.0A |
| Zero sequence current setting time | S | 0.6V-15S |
| Insulation resistance | MΩ | 500,DV1000V |
| Insulation voltage | V | AC:2000V |
| Rated voltage frequency | KV,HZ | 12,50 |
| Rated current | A | 630 |
| Icw | KA | 50 |
| Rated closing current | KA | 20KA/16A,4S |
| Rated frequency withstand voltage to ground /interphase/fracture | KV | 42/42/49 |
| Lighting impulse withstand voltage to ground /interphase/fracture | KV | 75/75/85 |
| Insulation resistance | MΩ | 2000 |
| Mechanical life, electric life under rated current | time | 10000,5000 |
| weight | kg | 198/195 |
| SF6 gas pressure/annual leak rate | ≤1% | |
| CT change | 630: 1 | |
| Zero sequence current CT change | 20: 1 | |
| Zero sequence voltage discriminator ZPD | Ma,DEC | 2,-180o---+180o |
| Power transformer SPS | KV/V | 10.5/230,100 |
Installation
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FZW28-12F series AC high voltage demarcation vacuum automatic recloser