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, or gears, 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 or slowing electric motors, generators, or converters  [2]
 H02P 3/02
·  Details
 H02P 3/04
·  ·  Means for stopping or slowing by a separate brake, e.g. friction brake, eddy-current brake (brakes F16D, H02K 49/00)  [2]
 H02P 3/06
·  for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter  [2]
 H02P 3/08
·  ·  for stopping or slowing a dc motor  [2]
 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 or slowing an ac motor  [2]
 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 or torque of electric motors (H02P 1/00, H02P 3/00, H02P 5/00, H02P 8/00 take precedence)  [2]
 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 8/00
Arrangements for controlling dynamo-electric motors of the kind having armature rotating step by step and without interrupter or commutator driven by the armature  [2]
 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)  [2]
 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)  [2]
 H02P 9/08
·  Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation  [2]
 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  [2]
 H02P 9/12
·  ·  for demagnetising; for reducing effects of remanence; for preventing pole reversal  [2]
 H02P 9/14
·  by variation of field (H02P 9/08, H02P 9/10 take precedence)  [2]
 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 9/34 takes precedence)  [2]
 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 takes precedence)  [2]
 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)