Customization: | Available |
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Certification: | ISO9001 |
Shell Material: | Steel Plate |
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ltem | Unit | Load switch | ||
ZFN21 vacuum |
ZFN11-12 vacuum |
ZFN11-10 vacuum |
||
Rated voltage | KV | 10 | 10 | 10 |
Max working voltage | KV | 12 | 12 | 12 |
Rated frequency | Hz | 50 | 50 | 50 |
Rated current | A | 630 | 630 | 400,630,800 |
Rated short-time withstand current | KA/s | 20/4 | 20/3 | 20/3 |
Rated short-time withstand current of ground circuit | KA/s | 20/4 | 20/3 | 20/3 |
Rated peak withstand current | KA | 50 | 50 | 50 |
Rated peak withstand current of ground circuit | KA | 50 | 50 | 50 |
Rated no-load transformer breaking current | KA | 600kVA transformer |
1250kVA transformer |
|
Main circuit,ground circuit and rated short-circuit making current |
KA | 50 | 50 | |
Rated short-circuit breaking current of fuse | KA | 31.5 | 31.5 | |
Electric life at rated current | Times | 1000 | 100 | |
Mechanical life | Times | 1000 | 200 | |
1 min power frequency withstand voltage(effective value) To-ground/phase across the isolating distance |
KV | 42/48 | ||
Power frequency withstand voltage isolating distance (effective value) |
KV | 53 | ||
Lightning impulse withstand voltage(peak) To-ground and phase-to-phase/across the isolating distance |
KV | 75/85 | ||
1 min power frequency withstand voltage of secondary circuit |
KV | 2 | ||
Rated switching current | A | 3150 | 1300 |