Universal circuit breaker is also called frame circuit breaker or intelligent circuit breaker. Its opening and closing action includes electric and manual two forms of operation, this article will introduce the universal circuit breaker closing steps and opening steps in detail, and can not be opened and closed fault inspection, so that everyone can be faster and better in the opening and closing operation.

Proper operation of closing

First see the electric closing step of the universal circuit breaker, we first press the energy storage button on its panel, and then wait until the energy storage is completed, and then press the closing button to complete the closing step.

Secondly, the manual closing step is to complete the closing step by manually storing energy in the upper and lower directions of the device through the operating handle on the front of the universal circuit breaker.

Unable to close the check step

When it is found that the universal circuit breaker cannot be closed, you can follow the following steps to check.

First check whether the circuit breaker is stored, and most of the universal circuit breakers on the market need to be stored before they can be closed.

If it is found that the energy storage button is not stored when the electric switch is closed, it is necessary to check whether the secondary circuit controlling energy storage is connected and whether the control voltage of the energy storage motor is normal. Finally check the motor and energy storage mechanism.

If you can store energy, it still can't close. Check whether the RESET button on the intelligent control protrudes from the panel. If it does, reset it. Drawer type circuit breaker also check whether the circuit breaker is shaken to the connected position, and the circuit breaker must be shaken to the connected position. It is also necessary to keep the undervoltage release closed, and the undervoltage release can not be closed if it is damaged. At this time, you can try to manually close the universal circuit breaker, manually store energy in place, and press the closing button on the circuit breaker after it is in place.

It's still not closing and we need to check that the shunt trip is still energized. Still can't close is the mechanical problem.

Proper operation of the switch

The opening operation of the universal circuit breaker is relatively simple, which can be directly opened by manually pressing the opening button on the circuit breaker body. You can also remotely press the switch button on the operation panel for electric switching.

It should be noted here that because the structure of the circuit breaker is divided into fixed type and extraction type, if the extraction type circuit breaker wants to power off, after pressing the opening button, it is also necessary to shake the universal circuit breaker to the separation position by manual crank.

Check steps that cannot be switched off

The failure to switch can be divided into local manual switching and remote electric switching.

Unable to manually switch, then you can check the mechanical operating mechanism, whether there is a stuck fault.

The universal circuit breaker can not be remotely opened, first of all to check the secondary circuit wiring of the shunt trip, check whether the voltage of the shunt trip is normal.

Finally, check the mechanical mechanism if there are any problems.