Soft Start Module Manufacturer in India

• Energizes the transformer without reflecting the large magnetizing current on the input source.

• Simple principle of operations.

• Introduces a resistor in series with the winding for a short duration and give command to close main MCCB and disconnects the resistor bank.

• Applies MCCB closing pulse once again in case MCCB fails to operate.

• Hence operation is guaranteed.

• Suitable only when energization needed with no load operation; suitable only for transformer

• MCCB must have a motor operator and U/V coil.

• Resistors connected in series of winding for soft start operation, are not part of this module.

Input phase sequence correction:

• Senses input phase sequence.

• As long as supply phase sequence is correct, the control passes correct phase sequence to load through a MCCB/contactor.

• If supply phase sequence reverses, control ensures not to close normally functioning MCCB/contactor to avoid reverse phase to load.

• Sensing input supply phase reversal, control generates a command to close another breaker/contactor which corrects phase sequence and apply the power to the load.

• Control circuit also does not permit single phasing to happen.

Input source selector:

• As long as priority source is available, connects the load to priority.

• If priority source fails, connects the load to Emergency source.

• Reconnects to priority source, once priority source resumes.