Complaint
PRODUCT DESCRIPTION:
ZKTD1250/12-31.5
ZKTD1600/12-31.5
| Main Technical Data | ||||
| Rated voltage | kv | 12 | ||
| Rated current | A | 1600/1250 | ||
| Rated frequency | Hz | 50 | ||
| Rated short-time power frequency withstand voltage(1 min) | kv | 48 | ||
| Rated lightning impulse withstand voltage | kv | 85 | ||
| Rated short-circuit breaking current | KA | 31.5 | ||
| Rated short-circuit making current (peak) | KA | 80 | ||
| Rated operations of short-circuit breaking current interruption | times | 30 | ||
| Rated single capacitor bank breaking current | A | 630 | ||
| Rated short-time withstand and current | KA | 31.5 | ||
| Rated peak withstand current | KA | 80 | ||
| Rated duration of short-circuit | s | 4 | ||
| Mechanical life | times | 20000 | ||
| contact closing force due to bellows and atmosphere | N | 120±50 | ||
| counterforce at rated contact force | N | 190±60 | ||
| circuit resistance at rate contact force | μΩ | ≤20 | ||
| shelf life | years | 20 | ||
| Contact erosion limit | mm | 3 | ||
| Weight of moving parts | kg | ≤1.5 | ||
| MECHANICAL DATE FOR MATCHED VACUUM SWITCHGEAR | ||||
| rated contact stroke | mm | 9±1 | ||
| average opening speed | m/s | 1.0±0.25 | ||
| average closing speed | m/s | 0.65±0.15 | ||
| added contact force | N | 3150±200 | ||
| contact bouncing duration at closing operation | ms | ≤2 | ||
| contact bouncing bank amplitude of opening operation | mm | ≤2 | ||
| three-pole simultaneity | ms | ≤1 | ||
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