by progressive reduction of impedance in secondary circuit

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Arrangements for starting electric motors or dynamo-electric converters > for starting dynamo-electric motors or dynamo-electric converters > for starting an individual polyphase induction motor > by progressive reduction of impedance in secondary circuit

CPC:

Arrangements for starting electric motors or dynamo-electric converters (starting of synchronous motors with electronic commutators H02P6/20, H02P6/22; starting dynamo-electric motors rotating step by step H02P8/04; vector control H02P21/00) > for starting dynamo-electric motors or dynamo-electric converters > for starting an individual polyphase induction motor > by progressive reduction of impedance in secondary circuit

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

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H02P 1/36 the impedance being a liquid resistance IPC+CPC Available in IPC and CPC