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ZW32-12FG | ||||||||||||
Number | Items | Unit | Data | |||||||||
01 | Rated voltage | kV | 12 | |||||||||
02 | Rated current | A | 630 | 1250 | ||||||||
03 | Rated frequency | Hz | 50 | |||||||||
04 | rated insulation level | one minute power frequency withstand voltage | Dry test | kA | 42/48 | |||||||
Wet test | 34 | |||||||||||
Secondary circuit to ground | 2 | |||||||||||
Lightning impulse withstand voltage | 75/85 | |||||||||||
05 | Rated short circuit breaking current | kA | 50 | 63 | ||||||||
06 | Rated short circuit making current | kA | 20 | 25 | ||||||||
07 | Rated peak withstand current | kA | 50 | 63 | ||||||||
08 | Rated Short-circuit Breaking Current Breaking Times | Times | 30 | |||||||||
09 | Rated Duration of Short-circuit | s | 4 | |||||||||
10 | Rated operating voltage and rated voltage of auxiliary circuit | V | DC220、AC220、AC/DC220 | |||||||||
11 | Rated operating sequence | OC-0.3s-CO-180s-CO | ||||||||||
12 | Rated current for overcurrent tripping | A | 5 | |||||||||
13 | Mechanical life | Times | 10000 | |||||||||
14 | Allowable Cumulative Wear Thickness of Dynamic and Static Contacts | mm | 3 | |||||||||
15 | Current ratio of current transformer | 200/5 400/5 600/5 | ||||||||||
16 | Contact stroke | mm | 9±1 | |||||||||
17 | Exceed range(the compress length of contact sping) | mm | 2±5 | |||||||||
18 | Average break speed | m/s | 1.2±0.3 | |||||||||
19 | Average closing speed | m/s | 0.6±0.2 | |||||||||
20 | Opening time | ms | 20~40 | |||||||||
21 | Closing time | ms | 30~60 | |||||||||
22 | The jump time of contact close break | ms | ≤2 | |||||||||
23 | Different period of three-phase break and close break | ≤2 | ||||||||||
24 | Resistance of each phase main loop | μΩ | ≤80(isolation belt≤150) |