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High-voltage commercial metering station with prepayment type JLZW
This device consists of a high-voltage vacuum circuit breaker type ZW43-12Y, an integrated combined metering station and a prepayment meter control cabinet.
Description
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Product Description
This device consists of a high-voltage vacuum circuit breaker type ZW43-12Y, an integrated combined metering station and a prepayment meter control cabinet. Voltage and current transformers in the combined metering point are made by vacuum casting with epoxy resin in a single housing. Designed for use in branches of electrical systems with a rated voltage of 6-10 kV and on dedicated transformers for the purposes of remote metering with prepayment, available in two-element and three-element versions according to the type of metering.
Combined prepaid metering device
Technical Parameters
| No. | Parameter name | Unit change | Meaning |
| 1 | Rated voltage | kV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 630, 1250 |
| 4 | Rated short circuit breaking current | kA | 20 |
| 5 | Rated peak current withstand current | kA | 50 |
| 6 | Rated short-time current | kA | 20 |
| 7 | Rated short-circuit inrush current (peak) | kA | 50 |
| 8 | Mechanical wear resistance | cycles | 10,000 |
| 9 | Number of shutdown operations at rated short-circuit current | cycles | 30 |
| 10 | Power frequency test voltage (1 min): (wet/dry) phase-to-phase / phase-to-ground / open contact | kV | 30 / 42 / 48 |
| 11 | Lightning impulse test voltage (peak) between phases / phase-to-earth / open contact | kV | 75 / 85 |
| 12 | Power frequency test voltage of secondary circuits (1 min) | kV | 2 |
Floor-mounted high voltage prepaid metering device
Voltage technical parameters
| Rated primary voltage | 12 kV, 7.2 kV |
| Rated secondary voltage | 100 V, 220 V |
| Accuracy class | 0.2; 0.5 |
Current technical parameters
| Rated primary current | 5-10,10-20,15-30,20-40,30-40,30-60,50-100,75-150, 150-200,150-300,200-300,200-400,300-600 |
| Rated secondary current | 5A |
| Accuracy class | 0.2S,0.2,0.5S |
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