H
SECTION H — ELECTRICITY
 H02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
 H02P
CONTROLLING ELECTRIC MOTORS, GENERATORS, OR CONVERTERS (structure of the starter, brake, or other control devices, see the appropriate sub-class, e.g. mechanical brake F16D, mechanical speed regulator G05D, variable resistor H01C, starter switch H01H; arrangements structurally associated with motors, generators, or converters, see the relevant sub-classes for the motors, generators, or converters; connection or control of one generator, transformer, or converter with regard to conjoint operation with a similar or other source of supply H02J)
 H02P

Note(s)

This sub-class deals with arrangements for starting, regulating, braking, or otherwise controlling motors, generators, converters, clutches, brakes of the types classified in sub-classes H01F, H02K, and H02M. Similar arrangements for the apparatus of the types classified in sub-class H02N are dealt with in that sub-class.

 H02P 1/00
Arrangements for starting electric motors or converters
 H02P 1/02
·  Details
 H02P 1/04
·  ·  Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
 H02P 1/06
·  ·  ·  Manually-operated multi-position starters
 H02P 1/08
·  ·  ·  Manually-operated on/off switch controlling power-operated multi-position switch or impedances for starting a motor
 H02P 1/10
·  ·  ·  Manually-operated on/off switch controlling relays or contactors operating sequentially for starting a motor (sequence determined by power-operated multi-position switch H02P 1/08)
 H02P 1/12
·  ·  ·  Switching devices centrifugally operated by the motor
 H02P 1/14
·  ·  ·  Pressure-sensitive resistors centrifugally operated by the motor
 H02P 1/16
·  for starting dynamo-electric motors or dynamo-electric converters
 H02P 1/18
·  ·  for starting an individual dc motor
 H02P 1/20
·  ·  ·  by progressive reduction of resistance in series with armature winding
 H02P 1/22
·  ·  ·  in either direction of rotation
 H02P 1/24
·  ·  for starting an individual ac commutator motor (starting of ac/dc commutator motors H02P 1/18)
 H02P 1/26
·  ·  for starting an individual polyphase induction motor
 H02P 1/28
·  ·  ·  by progressive increase of voltage applied to primary circuit of motor
 H02P 1/30
·  ·  ·  by progressive increase of frequency of supply to primary circuit of motor
 H02P 1/32
·  ·  ·  by star-delta switching
 H02P 1/34
·  ·  ·  by progressive reduction of impedance in secondary circuit
 H02P 1/36
·  ·  ·  ·  the impedance being a liquid resistance
 H02P 1/38
·  ·  ·  by pole-changing
 H02P 1/40
·  ·  ·  in either direction of rotation
 H02P 1/42
·  ·  for starting an individual single-phase induction motor
 H02P 1/44
·  ·  ·  by phase-splitting with a capacitor
 H02P 1/46
·  ·  for starting an individual synchronous motor
 H02P 1/48
·  ·  ·  by pole-changing
 H02P 1/50
·  ·  ·  by changing over from asynchronous to synchronous operation (H02P 1/48 takes precedence)
 H02P 1/52
·  ·  ·  by progressive increase of frequency of supply to motor
 H02P 1/54
·  ·  for starting two or more dynamo-electric motors
 H02P 1/56
·  ·  ·  simultaneously
 H02P 1/58
·  ·  ·  sequentially
 H02P 3/00
Arrangements for stopping electric motors, generators, or converters
 H02P 3/02
·  Details
 H02P 3/04
·  ·  Means for stopping by a separate brake, e.g. friction brake, eddy-current brake (brakes F16D, H02K)
 H02P 3/06
·  for stopping an individual dynamo-electric motor or dynamo-electric converter
 H02P 3/08
·  ·  for stopping a dc motor
 H02P 3/10
·  ·  ·  by reversal of supply connections
 H02P 3/12
·  ·  ·  by short-circuit or resistive braking
 H02P 3/14
·  ·  ·  by regenerative braking
 H02P 3/16
·  ·  ·  by combined electrical and mechanical braking
 H02P 3/18
·  ·  for stopping an ac motor
 H02P 3/20
·  ·  ·  by reversal of phase sequence of connections to the motor
 H02P 3/22
·  ·  ·  by short-circuit or resistive braking
 H02P 3/24
·  ·  ·  by applying dc to the motor
 H02P 3/26
·  ·  ·  by combined electrical and mechanical braking
 H02P 5/00
Arrangements for speed regulation of electric motors wherein the motor speed is measured and compared with a given physical value so as to adjust the motor speed
 H02P 5/04
·  for speed regulation of an individual motor by means of a separate brake
 H02P 5/06
·  for speed regulation of an individual dc dynamo-electric motor by varying field or armature current
 H02P 5/08 - 
H02P 5/20

Note(s)

Group H02P 5/22 takes precedence over groups H02P 5/08-H02P 5/20.

 H02P 5/08
·  ·  using centrifugal devices, e.g. switch, resistor
 H02P 5/10
·  ·  using a periodic interrupter, e.g. Tirrill regulator (H02P 5/08 takes precedence)
 H02P 5/12
·  ·  using discharge tubes or semiconductor devices
 H02P 5/14
·  ·  ·  using discharge tubes
 H02P 5/16
·  ·  ·  using semiconductor devices
 H02P 5/18
·  ·  using magnetic devices with controllable degree of saturation, i.e. transductors
 H02P 5/20
·  ·  using armature-reaction-excited machines, e.g. metadyne, amplidyne, rototrol
 H02P 5/22
·  ·  using Ward-Leonard set
 H02P 5/24
·  ·  ·  in which only the generator field is controlled
 H02P 5/26
·  ·  ·  in which both generator and motor fields are controlled
 H02P 5/28
·  for speed regulation of an individual ac motor by varying stator or rotor current
 H02P 5/30
·  ·  using centrifugal devices, e.g. switch, resistor
 H02P 5/32
·  ·  using a periodic interrupter (H02P 5/30 takes precedence)
 H02P 5/34
·  ·  by varying frequency of supply to rotor or stator
 H02P 5/36
·  ·  using discharge tubes or semiconductor devices
 H02P 5/38
·  ·  ·  using discharge tubes
 H02P 5/40
·  ·  ·  using semiconductor devices
 H02P 5/42
·  ·  using magnetic devices with controllable degree of saturation, i.e. transductors
 H02P 5/44
·  ·  using brush shifting arrangements
 H02P 5/46
·  for speed regulation of two or more dynamo-electric motors in relation to one another
 H02P 5/48
·  ·  by comparing mechanical values representing the speeds
 H02P 5/50
·  ·  by comparing electrical values representing the speeds
 H02P 5/52
·  ·  additionally providing control of relative angular displacement
 H02P 7/00
Arrangements for controlling the speed and/or torque of electric motors (H02P 1/00, H02P 3/00, H02P 5/00 take precedence)
 H02P 7/04
·  for controlling an individual motor by means of a separate brake
 H02P 7/06
·  for controlling an individual dc dynamo-electric motor by varying field or armature current
 H02P 7/08
·  ·  by manual control without auxiliary power
 H02P 7/10
·  ·  ·  of motor field only
 H02P 7/12
·  ·  ·  ·  Switching field from series to shunt excitation or vice versa
 H02P 7/14
·  ·  ·  of voltage applied to the armature with or without control of field
 H02P 7/16
·  ·  ·  ·  Ward-Leonard control
 H02P 7/18
·  ·  by master control with auxiliary power
 H02P 7/20
·  ·  ·  using multi-position switch, e.g. drum, controlling motor circuit by means of relays
 H02P 7/22
·  ·  ·  using multi-position switch, e.g. drum, controlling motor circuit by means of pilot-motor-operated multi-position switch or pilot-motor-operated variable resistance
 H02P 7/24
·  ·  ·  using discharge tubes or semiconductor devices
 H02P 7/26
·  ·  ·  ·  using discharge tubes
 H02P 7/28
·  ·  ·  ·  using semiconductor devices
 H02P 7/30
·  ·  ·  using magnetic devices with controllable degree of saturation, i.e. transductors
 H02P 7/32
·  ·  ·  using armature-reaction-excited machines, e.g. metadyne, amplidyne, rototrol
 H02P 7/34
·  ·  ·  using Ward-Leonard arrangements
 H02P 7/36
·  for controlling an individual ac dynamo-electric motor by varying stator or rotor current
 H02P 7/38
·  ·  by manual control without auxiliary power
 H02P 7/40
·  ·  ·  using variable impedance in stator or rotor circuit
 H02P 7/42
·  ·  ·  using variable-frequency supply
 H02P 7/44
·  ·  ·  ·  wherein only rotor or only stator circuit is supplied with ac
 H02P 7/46
·  ·  ·  ·  wherein both rotor and stator circuits are supplied with ac, the frequency of supply to one circuit being variable
 H02P 7/48
·  ·  ·  by pole-changing
 H02P 7/50
·  ·  ·  by shifting the brushes of a commutator motor
 H02P 7/52
·  ·  by master control with auxiliary power
 H02P 7/54
·  ·  ·  using multi-position switch, e.g. drum, controlling motor circuit by means of relays
 H02P 7/56
·  ·  ·  using multi-position switch, e.g. drum, controlling motor circuit by means of pilot-motor-operated multi-position switch or pilot-motor-operated variable resistance
 H02P 7/58
·  ·  ·  using discharge tubes or semiconductor devices
 H02P 7/60
·  ·  ·  ·  using discharge tubes
 H02P 7/62
·  ·  ·  ·  using semiconductor devices
 H02P 7/64
·  ·  ·  using magnetic devices with controllable degree of saturation, i.e. transductors
 H02P 7/66
·  ·  ·  using an ac generator to supply the motor, the motor being controlled by a control effected upon the generator
 H02P 7/68
·  for controlling two or more dc dynamo-electric motors
 H02P 7/70
·  ·  by master control with auxiliary power
 H02P 7/72
·  ·  ·  for changing between series and parallel connections of motors
 H02P 7/74
·  for controlling two or more ac dynamo-electric motors
 H02P 7/76
·  ·  by master control with auxiliary power
 H02P 7/78
·  ·  ·  for cascade connection between motors, e.g. motors permanently connected in cascade, motors switched from parallel to cascade connection
 H02P 7/80
·  for controlling combinations of dc and ac dynamo-electric motors
 H02P 9/00
Arrangements for controlling electric generators for the purpose of obtaining a desired output (Ward-Leonard arrangements H02P 7/34; feeding a network by two or more generators H02J)
 H02P 9/02
·  Details
 H02P 9/04
·  ·  Control effected upon non-electric prime mover and dependent upon electric output value of the generator (effecting control of the prime mover in general, see the relevant classes)
 H02P 9/06
·  ·  Control effected upon clutch or other mechanical power transmission means and dependent upon electric output value of the generator (effecting control of the power transmission means, see the relevant classes)
 H02P 9/08
·  ·  Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation
 H02P 9/10
·  ·  Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
 H02P 9/12
·  ·  ·  for demagnetising; for reducing effects of remanence; for preventing pole reversal
 H02P 9/14
·  by variation of field
 H02P 9/16
·  ·  due to variation of ohmic resistance in field circuit, using resistances switched in or out of circuit step by step
 H02P 9/18
·  ·  ·  the switching being caused by a servomotor, measuring instrument, or relay
 H02P 9/20
·  ·  due to variation of continuously-variable ohmic resistance
 H02P 9/22
·  ·  ·  comprising carbon pile resistance
 H02P 9/24
·  ·  due to variation of make-to-break ratio of intermittently-operating contacts, e.g. using Tirrill regulator
 H02P 9/26
·  ·  using discharge tubes or semiconductor devices
 H02P 9/28
·  ·  ·  using discharge tubes
 H02P 9/30
·  ·  ·  using semiconductor devices
 H02P 9/32
·  ·  using magnetic devices with controllable degree of saturation
 H02P 9/34
·  ·  using magnetic devices with controllable degree of saturation in combination with controlled discharge tube or controlled semiconductor device
 H02P 9/36
·  ·  using armature-reaction-excited machines
 H02P 9/38
·  ·  Self-excitation by current derived from rectification of both output voltage and output current of generator
 H02P 9/40
·  by variation of reluctance of magnetic circuit of generator
 H02P 9/42
·  to obtain desired frequency without varying speed of the generator
 H02P 9/44
·  Control of frequency and voltage in predetermined relation, e.g. constant ratio
 H02P 9/46
·  Control of asynchronous generator by variation of capacitor
 H02P 11/00
Arrangements for controlling dynamo-electric or other non-static converters (starting H02P 1/00; stopping or slowing H02P 3/00; feeding a network in conjunction with a generator or another converter H02J)
 H02P 11/04
·  for controlling dynamo-electric converters having a dc output
 H02P 11/06
·  for controlling dynamo-electric converters having an ac output
 H02P 11/08
·  for controlling converters which operate by contact making and breaking
 H02P 13/00
Arrangements for controlling static converters for the purpose of obtaining a desired output (feeding a network in conjunction with a generator or another converter H02J)
 H02P 13/04
·  for controlling transformers, reactors, or choke coils (in converters using electronic devices H02P 13/14, H02P 13/16)
 H02P 13/06
·  ·  by tap-changing; by rearranging interconnections of windings
 H02P 13/08
·  ·  by sliding current collector along winding
 H02P 13/10
·  ·  by moving core, coil winding, or shield, e.g. by induction regulator
 H02P 13/12
·  ·  by varying magnetic bias
 H02P 13/14
·  for controlling converters which use discharge tubes or semiconductor devices (H02P 13/16 takes precedence)
 H02P 13/16
·  for controlling converters which use discharge tubes with control electrode or semiconductor devices with control electrode
 H02P 13/18
·  ·  Controlling dc-ac converters; Controlling dc-ac conversion stage in dc-ac-dc or in ac-dc-ac converters
 H02P 13/20
·  ·  ·  dependent upon output of dc-ac conversion stage
 H02P 13/22
·  ·  ·  dependent upon final dc output in dc-ac-dc converters
 H02P 13/24
·  ·  Controlling ac-dc converters; Controlling ac-dc conversion stage in ac-dc-ac or in dc-ac-dc converters
 H02P 13/26
·  ·  ·  dependent upon output of ac-dc conversion stage
 H02P 13/28
·  ·  ·  dependent upon final ac output in ac-dc-ac converters
 H02P 13/30
·  ·  Controlling ac-ac converters without intermediate conversion to dc
 H02P 13/32
·  ·  Controlling dc-dc converters without intermediate conversion to ac
 H02P 15/00
Arrangements for controlling dynamo-electric brakes or clutches (controlling speed of dynamo-electric motors by means of a separate brake H02P 5/00, H02P 7/00)