characterised by the circuit arrangement or by the kind of wiring

Full Title

Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details > characterised by the circuit arrangement or by the kind of wiring

Child Classifications

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• H02P 25/18 with arrangements for switching the windings, e.g. with mechanical switches or relays
• H02P 25/22 Multiple windings; Windings for more than three phases
• H02P 25/24 Variable impedance in stator or rotor circuit
• H02P 25/28 using magnetic devices with controllable degree of saturation, e.g. transductors
• H02P 25/30 the motor being controlled by a control effected upon an AC generator supplying it
• H02P 25/32 using discharge tubes