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Voita Electronic
Voita Electronic
The static transformer switch is an AC switch with two inputs. Normally, one AC input is on and the other is off. One AC input provides power to the load. When one power supply is abnormal, the STS automatically switches to the other power supply to ensure that the load is continuously powered by the other power supply.
STS AC dual power switching device adopts high-speed static contactless switching principle design, with the following characteristics:
| Switch Over Parameters | |
| Switching Time | ≤4ms |
| AC Input & Power | |
| Rated Voltage | 220VAC (Range: 190～260VAC) |
| Rated Frequency | 50HZ |
| Power Factor | 1 |
| Auto-switch Threshold Voltage | Under-voltage: 190Vac ± 5Vac | Over-voltage: 260Vac ± 5Vac |
| Auto-switch Threshold Frequency | 50HZ ± 10%, backlash ± 2HZ |
| Over-limit Shutdown Voltage | ≤160Vac or ≥ 265Vac, backlash ±5V |
| Over-limit Shutdown Frequency | ≤45Hz or ≥65Hz, backlash ±0.2Hz |
| Overload Capacity | Load current ≤ 110%: Continuous operation | >110%: Shutdown in 60ms |
| Communication & Environment | |
| Communication Interface | RS485 |
| Dielectric Strength | 2KVAC, 1min |
| Operating Temperature | -25～50℃ |
| Altitude | ≤3000m (Derating 1% per 100m above 2000m) |
| Protection Functions | |
| Input under/over voltage, output overload, over temperature, short circuit protection | |
