IPC 6 English version H02P !A-H02P 5/52

H02P-H02P00552

SECTION H– ELECTRICITY

H 02

GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER

H 02 P

CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS (structure of the starter, brake, or other control devices, see the relevant subclasses, e.g. mechanical brake F 16 D, mechanical speed regulator G 05 D, variable resistor H 01 C, starter switch H 01 H; systems for regulating electric or magnetic variables using transformers, reactors or choke coils G 05 F; arrangements structurally associated with motors, generators, dynamo-electric converters, transformers, reactors or choke coils, see the relevant subclasses, e.g. H 01 F, H 02 K; connection or control of one generator, transformer, reactor, choke coil, or dynamo-electric converter with regard to conjoint operation with similar or other source of supply H 02 J; control or regulation of static converters H 02 M) [4]

Notes

(1)

This subclass covers arrangements for starting, regulating, electronically commutating, braking, or otherwise controlling motors, generators, dynamo-electric converters, clutches, brakes, gears, transformers, reactors or choke coils, of the types classified in the relevant subclasses, e.g. H 01 F, H 02 K.

(2)

This subclass does not cover similar arrangements for the apparatus of the types classified in subclass H 02 N, which arrangements are covered by that subclass.

(3)

In this subclass, the following terms or expressions are used with the meanings indicated: [6]

–

"control" means influencing a variable in any way, e.g. changing its direction or its value (including changing it to or from zero), maintaining it constant, limiting its range of variation; [6]

–

"regulation" means maintaining a variable at a desired value, or within a desired range of values, by comparison of the actual value with the desired value. [6]

Arrangements for starting electric motors or dynamo-electric converters (H 02 P 6/00 takes precedence) [4]

Details

Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter

Manually-operated multi-position starters

Manually-operated on/off switch controlling power-operated multi-position switch or impedances for starting a motor

Manually-operated on/off switch controlling relays or contactors operating sequentially for starting a motor (sequence determined by power-operated multi-position switch H 02 P 1/08)

Switching devices centrifugally operated by the motor

Pressure-sensitive resistors centrifugally operated by the motor

for starting dynamo-electric motors or dynamo-electric converters

for starting an individual dc motor

by progressive reduction of resistance in series with armature winding

in either direction of rotation

for starting an individual ac commutator motor (starting of ac/dc commutator motors H 02 P 1/18)

for starting an individual polyphase induction motor

by progressive increase of voltage applied to primary circuit of motor

by progressive increase of frequency of supply to primary circuit of motor

by star/delta switching

by progressive reduction of impedance in secondary circuit

the impedance being a liquid resistance

by pole-changing

in either direction of rotation

for starting an individual single-phase induction motor

by phase-splitting with a capacitor

for starting an individual synchronous motor

by pole-changing

by changing over from asynchronous to synchronous operation (H 02 P 1/48 takes precedence)

by progressive increase of frequency of supply to motor

for starting two or more dynamo-electric motors

simultaneously

sequentially

Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters (H 02 P 6/00 takes precedence) [2,4]

Details

Means for stopping or slowing by a separate brake, e.g. friction brake, eddy-current brake (brakes F 16 D, H 02 K 49/00) [2]

for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter [2]

for stopping or slowing a dc motor [2]

by reversal of supply connections

by short-circuit or resistive braking

by regenerative braking

by combined electrical and mechanical braking

for stopping or slowing an ac motor [2]

by reversal of phase sequence of connections to the motor

by short-circuit or resistive braking

by applying dc to the motor

by combined electrical and mechanical braking

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

for speed regulation of an individual motor by means of a separate brake

characterised by the use of reluctance motors [6]

for speed regulation of an individual dc dynamo-electric motor by varying field or armature current

Note

Group H 02 P 5/22 takes precedence over groups H 02 P 5/08 to H 02 P 5/20.

using centrifugal devices, e.g. switch, resistor

using a periodic interrupter, e.g. Tirrill regulator (H 02 P 5/08, H 02 P 5/12 to H 02 P 5/18 take precedence) [4]

using discharge tubes or semiconductor devices (H 02 P 5/08 takes precedence) [4]

using discharge tubes

using semiconductor devices

162

controlling field supply only [4]

165

controlling armature supply only [4]

168

using variable impedance [4]

using pulse modulation [4]

172

using static converters, e.g. ac to dc [4]

175

of the kind having one thyristor or the like in series with the power supply and the motor [4]

178

controlling armature and field supply [4]

using magnetic devices with controllable degree of saturation, i.e. transductors

using armature-reaction-excited machines, e.g. metadyne, amplidyne, rototrol

using Ward-Leonard set

in which only the generator field is controlled

in which both generator and motor fields are controlled

for speed regulation of an individual ac motor by varying stator or rotor current

Note

Groups H 02 P 5/36 to H 02 P 5/42 take precedence over groups H 02 P 5/30 to H 02 P 5/34. [4]

using centrifugal devices, e.g. switch, resistor

using a periodic interrupter (H 02 P 5/30 takes precedence)

by varying frequency of supply to rotor or stator

using discharge tubes or semiconductor devices

using discharge tubes

using semiconductor devices (vector- or field-oriented control H 02 P 21/00) [6]

402

controlling supply voltage (H 02 P 5/418 takes precedence) [4]

405

controlling secondary impedance [4]

408

controlling supply frequency (H 02 P 5/418 takes precedence) [4]

using dc to ac converters [4]

412

using ac to ac converters without intermediate conversion to dc [4]

415

controlling slip energy [4]

418

for regulating commutator motors [4]

using magnetic devices with controllable degree of saturation, i.e. transductors

using brush shifting arrangements

for speed regulation of two or more dynamo-electric motors in relation to one another

by comparing mechanical values representing the speeds

by comparing electrical values representing the speeds

additionally providing control of relative angular displacement

H02P 6/00 - H02P 8/42