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Indoor Vacuum Load Switch FZ(R)N35-40.5 Series
Combined device - indoor high voltage vacuum load switch with fuse (hereinafter referred to as combined device) is a switching equipment specially designed for new energy fields such as wind power and photovoltaic power.
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Product Description
Combined device - indoor high voltage vacuum load switch with fuse (hereinafter referred to as combined device) is a switching equipment specially designed for new energy fields such as wind power and photovoltaic power. It is widely used in 40.5kV combined transformers, kiosk-type complete transformer substations and other facilities. The characteristics comply with the requirements of the national standard GB16926 "Combination Apparatus - High Voltage AC Load Switches with Fuse". It has such advantages as high breaking capacity, safety and reliability, long electrical service life, the possibility of frequent operations, and practically no maintenance required. Provides protection of the transformer from overload, prevents equipment operation in open-phase mode. This combined device has a visible insulating gap and a grounding switch with making capacity, and can be equipped with an electric spring drive to implement remote control.
| No. | Parameter name | Unit change | Combination switch | Load switch | Grounding knife | |
| 1 | Rated voltage | kV | 40.5 | 40.5 | 40.5 | |
| 2 | Rated current | A | 100 A and below | 1250 | — | |
| 3 | Rated frequency | Hz | 50 | 50 | 50 | |
| 4 | Rated short circuit breaking current | kA | 31.5 and below | — | — | |
| 5 | Rated short-circuit inrush current | kA | — | 80 | 80 | |
| 6 | Rated peak current withstand current | kA | — | 80 | 80 | |
| 7 | Rated short-time current | kA | — | 31.5 | 31.5 | |
| 8 | Rated transmission (switching) current | A | 1700 | — | — | |
| 9 | Rated active load breaking current | A | — | 1250 | — | |
| 10 | Rated closed circuit breaking current | A | — | 1250 | — | |
| 11 | Rated cable charging current interruption current | A | — | 21 | — | |
| 12 | Short circuit current duration | with | — | 4 | 4 | |
| 13 | Rated operating voltage of control/auxiliary circuits | B | DC 220 | DC 220 | — | |
| 14 | Power frequency test voltage for 1 min (rms value) | Control and auxiliary circuits | kV | 2 | 2 | – |
| Main circuit | kV | Between poles, relative to earth and vacuum gap: 95 | ||||
| kVV | Breaking distance: 110 | |||||
| 15 | Lightning impulse test voltage (peak) | kVV | Between poles, relative to earth and vacuum gap: 185 | |||
| kVV | Breaking distance: 215 | |||||
| 16 | Main circuit resistance | µOhm | ≤400 (for complex device, excluding fuse) | |||
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