Solution to the "passive" situation of outdoor intelligent vacuum circuit breakers

Providing the required power to the outdoor smart vacuum circuit breaker may become a problem if there is a lack of power supply near the installation site, such as 220V or 110V power supply. To address this challenge, we can consider the following solutions:

Adding an outdoor PT power supply

Installing an outdoor PT power supply for the main body of the Timetric Electric ZW32-12 vacuum circuit breaker is an effective solution. These power supplies usually take power from the high-voltage side of the line and then convert it to the required low-voltage power supply, such as 220V or 110V, through a voltage transformer. These power supplies not only provide the required operating voltage for the vacuum circuit breaker itself, but also provide power for other control devices.

Functions and Applications

Power Supply: The PT power supply is similar to a small transformer that can convert the voltage of the high-voltage line into a low-voltage power supply suitable for circuit breakers and controllers.

Coping with "passive" situations: By installing an outdoor PT power supply, the vacuum circuit breaker and its control system can be ensured to operate normally even if there is no ready power supply available nearby.

Conclusion

Timetric Electric's manual ZW32 vacuum circuit breaker detects current through a transformer and uses an inrush current controller and a trip coil to achieve effective protection of the power line. In the case of a lack of power at the installation site, adding an outdoor PT power supply is a reliable solution to ensure the normal operation of the circuit breaker.