|  | 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 Fulltext... Hierarchy... Expanded...F16D, mechanical speed regulator Fulltext... Hierarchy... Expanded...G05D, variable resistor Fulltext... Hierarchy... Expanded...H01C, starter switch Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...H01F, Fulltext... Hierarchy... Expanded...H02K, and Fulltext... Hierarchy... Expanded...H02M. Similar arrangements for the apparatus of the types classified in sub-class Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...F16D, Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...H02P 5/22 takes precedence over groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...H02P 1/00, Fulltext... Hierarchy... Expanded...H02P 3/00, Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...H02P 7/34; feeding a network by two or more generators Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...H02P 1/00; stopping or slowing Fulltext... Hierarchy... Expanded...H02P 3/00; feeding a network in conjunction with a generator or another converter Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...H02J)

|  | H02P 13/04 |
· | for controlling transformers, reactors, or choke coils (in converters using electronic devices Fulltext... Hierarchy... Expanded...H02P 13/14, Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...H02P 5/00, Fulltext... Hierarchy... Expanded...H02P 7/00)