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ZW7C-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker (Compact)
The ZW7c-40.5 series outdoor high-voltage AC vacuum circuit breaker (hereinafter referred to as the “breaker”) is a high-voltage outdoor switching equipment of three-phase 50Hz alternating current.
Description
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Product Description
The ZW7c-40.5 series outdoor high-voltage AC vacuum circuit breaker (hereinafter referred to as the “breaker”) is a high-voltage outdoor switching equipment of three-phase 50Hz alternating current. The compact design is suitable for joint use with SVG products in new energy power plants to implement the soft start function. This product has the advantages of high breaking capacity, safety and reliability, the possibility of frequent operations, and no need for maintenance. Can also be used in electrical networks for switching unloaded lines and capacitor banks.
The switch complies with the requirements of the national standard GB1984-2014 “High-voltage AC circuit breakers” and the international standard IEC 62271-100:2001 “High-voltage AC circuit breakers”.
| No. | Name | Unit change | Meaning | ||
| 1 | Rated voltage | kV | 40.5 | ||
| 2 | Nominal insulation level: | Rated short-time test voltage | Dry | 95 | |
| Wet | 80 | ||||
| Rated lightning impulse voltage | 185 | ||||
| 3 | Rated frequency | Hz | 50 | ||
| 4 | Rated current | A | 1250/1600/2000 | ||
| 5 | Rated short-time current | kA | 20/25/31.5 | ||
| 6 | Rated peak current withstand current | 50/63/80 | |||
| 7 | Rated short circuit breaking current | 20/25/31.5 | |||
| 8 | Rated short-circuit inrush current | 50/63/80 | |||
| 9 | Short circuit current duration | with | 4 | ||
| 10 | DC component of rated short-circuit breaking current | 37 | |||
| 11 | Peak Recovery Voltage (TRV) | kV | 114 | ||
| 12 | Rated supply voltage for on/off circuits and auxiliary circuits | B | DC/AC 220 | ||
| 13 | Nominal sequence of operations | O-0.3c-CO-180c-CO | |||
| 14 | Shutdown time | ms | ≤50 | ||
| 15 | On time | ≤140 | |||
| 16 | Total shutdown time | ≤80 | |||
| 17 | Rated cable charging current interruption current | A | 100 | ||
| 18 | Class | E2-C2-M2 (10000) | |||
| 19 | Number of short circuit breaking operations | cycles | 20 | ||
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