IPC-Stelle: H02H [Version 2006.01]

SymbolTypTitel
HSKSECTION H — ELECTRICITY
H02KLGENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H02HUKLEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS (indicating or signalling undesired working conditions G01R, e.g. G01R 31/00, G08B; locating faults along lines G01R 31/08; emergency protective devices H01H)
H02H 1/00HGRDetails of emergency protective circuit arrangements
H02H 1/04UGR1
.Arrangements for preventing response to transient abnormal conditions, e.g. to lightning
H02H 1/06UGR1
.Arrangements for supplying operative power [3]
H02H 3/00HGREmergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems H02H 7/00; systems for change-over to standby supply H02J 9/00)
H02H 3/02UGR1
.Details
H02H 3/027UGR2
. .with automatic disconnection after a predetermined time (H02H 3/033, H02H 3/06 take precedence) [3]
H02H 3/033UGR2
. .with several disconnections in a preferential order (H02H 3/06 takes precedence) [3]
H02H 3/04UGR2
. .with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
H02H 3/05UGR2
. .with means for increasing reliability, e.g. redundancy arrangements [3]
H02H 3/06UGR2
. .with automatic reconnection
H02H 3/07UGR3
. . .and with permanent disconnection after a predetermined number of reconnection cycles [3]
H02H 3/08UGR1
.responsive to excess current (responsive to abnormal temperature caused by excess current H02H 5/04)
H02H 3/087UGR2
. .for dc applications [3]
H02H 3/093UGR2
. .with timing means [3]
H02H 3/10UGR2
. .additionally responsive to some other abnormal electrical conditions
H02H 3/12UGR1
.responsive to underload or no-load
H02H 3/13UGR2
. .for multiphase applications, e.g. phase interruption [3]
H02H 3/14UGR1
.responsive to occurrence of voltage on parts normally at earth potential
H02H 3/16UGR1
.responsive to fault current to earth, frame or mass (with balanced or differential arrangement H02H 3/26)
H02H 3/17UGR2
. .by means of an auxiliary voltage injected into the installation to be protected [3]
H02H 3/18UGR1
.responsive to reversal of direct current
H02H 3/20UGR1
.responsive to excess voltage
H02H 3/22UGR2
. .of short duration, e.g. lightning
H02H 3/24UGR1
.responsive to undervoltage or no-voltage
H02H 3/247UGR2
. .having timing means [3]
H02H 3/253UGR2
. .for multiphase applications, e.g. phase interruption [3]
H02H 3/26UGR1
.responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
H02H 3/28UGR2
. .involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
H02H 3/30UGR3
. . .using pilot wires or other signalling channel
H02H 3/32UGR2
. .involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
H02H 3/33UGR3
. . .using summation current transformers (H02H 3/347 takes precedence) [3]
H02H 3/34UGR3
. . .of a three-phase system
H02H 3/347UGR4
. . . .using summation current transformers [3]
H02H 3/353UGR4
. . . .involving comparison of phase voltages [3]
H02H 3/36UGR2
. .involving comparison of the voltage or current values at corresponding points of different systems, e.g. of parallel feeder systems
H02H 3/38UGR1
.responsive to both voltage and current; responsive to phase angle between voltage and current
H02H 3/40UGR1
.responsive to ratio of voltage and current
H02H 3/42UGR1
.responsive to product of voltage and current
H02H 3/44UGR1
.responsive to the rate of change of electrical quantities [3]
H02H 3/46UGR1
.responsive to frequency deviations [3]
H02H 3/48UGR1
.responsive to loss of synchronism [3]
H02H 3/50UGR1
.responsive to the appearance of abnormal wave forms, e.g. ac in dc installations [3]
H02H 3/52UGR2
. .responsive to the appearance of harmonics [3]
H02H 5/00HGREmergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection (using simulators of the apparatus being protected H02H 6/00; specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems H02H 7/00) [3]
H02H 5/04UGR1
.responsive to abnormal temperature
H02H 5/06UGR2
. .in oil-filled electric apparatus
H02H 5/08UGR1
.responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
H02H 5/10UGR1
.responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
H02H 5/12UGR1
.responsive to undesired approach to, or touching of, live parts by living beings
H02H 6/00HGREmergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images [3]
H02H 7/00HGREmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (structural association of protective devices with specific machines or apparatus and their protection without automatic disconnection, see the relevant subclass for the machine or apparatus)
H02H 7/04UGR1
.for transformers
H02H 7/045UGR2
. .Differential protection of transformers [3]
H02H 7/05UGR2
. .for capacitive voltage transformers, e.g. against resonant conditions [3]
H02H 7/055UGR2
. .for tapped transformers or tap-changing means thereof [3]
H02H 7/06UGR1
.for dynamo-electric generators; for synchronous capacitors
H02H 7/08UGR1
.for dynamo-electric motors
H02H 7/085UGR2
. .against excessive load
H02H 7/09UGR2
. .against over-voltage; against reduction of voltage; against phase interruption
H02H 7/093UGR2
. .against increase beyond, or decrease below, a predetermined level of rotational speed (centrifugal switches H01H 35/10)
H02H 7/097UGR2
. .against wrong direction of rotation
H02H 7/10UGR1
.for converters; for rectifiers
H02H 7/12UGR2
. .for static converters or rectifiers
H02H 7/122UGR3
. . .for inverters, i.e. dc/ac converters [2]
H02H 7/125UGR3
. . .for rectifiers [2]
H02H 7/127UGR4
. . . .having auxiliary control electrode to which blocking control voltages or currents are applied in case of emergency [2]
H02H 7/16UGR1
.for capacitors (for synchronous capacitors H02H 7/06)
H02H 7/18UGR1
.for batteries; for accumulators
H02H 7/20UGR1
.for electronic equipment (for converters H02H 7/10; for electric measuring instruments G01R 1/36; for dc voltage or current semiconductor regulators G05F 1/569; for amplifiers H03F 1/52; for electronic switching circuits H03K 17/08)
H02H 7/22UGR1
.for distribution gear, e.g. bus-bar systems; for switching devices
H02H 7/24UGR1
.for spark-gap arresters
H02H 7/26UGR1
.Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred (locating faults in cables G01R 31/08)
H02H 7/28UGR2
. .for meshed systems
H02H 7/30UGR2
. .Staggered disconnection [3]
H02H 9/00HGREmergency protective circuit arrangements for limiting excess current or voltage without disconnection (structural association of protective devices with specific machines or apparatus, see the relevant subclass for the machine or apparatus)
H02H 9/02UGR1
.responsive to excess current
H02H 9/04UGR1
.responsive to excess voltage (lightning arrestors H01C 7/12, H01C 8/04, H01G 9/18, H01T)
H02H 9/06UGR2
. .using spark-gap arresters
H02H 9/08UGR1
.Limitation or suppression of earth fault currents, e.g. Petersen coil [3]
H02H 11/00HGREmergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result