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Symbol IPC-Stellen auswählen Titel
A
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HUMAN NECESSITIES
B
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PERFORMING OPERATIONSTRANSPORTING
C
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CHEMISTRYMETALLURGY
D
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TEXTILESPAPER
E
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FIXED CONSTRUCTIONS
F
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MECHANICAL ENGINEERINGLIGHTINGHEATINGWEAPONSBLASTING
G
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PHYSICS
H
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ELECTRICITY
H01
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ELECTRIC ELEMENTS
H02
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GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H02B
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BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
H02G
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INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
H02H
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EMERGENCY 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 1/00
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Details of emergency protective circuit arrangements [1, 2006.01]
H02H 3/00
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Emergency 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) [1, 2006.01]
H02H 3/02
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Details [1, 2006.01]
H02H 3/027
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. . with automatic disconnection after a predetermined time (H02H 3/033, H02H 3/06 take precedence) [3, 2006.01]
H02H 3/033
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. . with several disconnections in a preferential order (H02H 3/06 takes precedence) [3, 2006.01]
H02H 3/04
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. . with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned [1, 2006.01]
H02H 3/05
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. . with means for increasing reliability, e.g. redundancy arrangements [3, 2006.01]
H02H 3/06
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. . with automatic reconnection [1, 2006.01]
H02H 3/07
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. . . and with permanent disconnection after a predetermined number of reconnection cycles [3, 2006.01]
H02H 3/08
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responsive to excess current (responsive to abnormal temperature caused by excess current H02H 5/04) [1, 2006.01]
H02H 3/087
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. . for dc applications [3, 2006.01]
H02H 3/093
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. . with timing means [3, 2006.01]
H02H 3/10
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. . additionally responsive to some other abnormal electrical conditions [1, 2006.01]
H02H 3/12
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responsive to underload or no-load [1, 2006.01]
H02H 3/13
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. . for multiphase applications, e.g. phase interruption [3, 2006.01]
H02H 3/14
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responsive to occurrence of voltage on parts normally at earth potential [1, 2006.01]
H02H 3/16
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responsive to fault current to earth, frame or mass (with balanced or differential arrangement H02H 3/26) [1, 2006.01]
H02H 3/17
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. . by means of an auxiliary voltage injected into the installation to be protected [3, 2006.01]
H02H 3/18
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responsive to reversal of direct current [1, 2006.01]
H02H 3/20
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responsive to excess voltage [1, 2006.01]
H02H 3/22
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. . of short duration, e.g. lightning [1, 2006.01]
H02H 3/24
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responsive to undervoltage or no-voltage [1, 2006.01]
H02H 3/247
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. . having timing means [3, 2006.01]
H02H 3/253
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. . for multiphase applications, e.g. phase interruption [3, 2006.01]
H02H 3/26
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responsive to difference between voltages or between currentsresponsive to phase angle between voltages or between currents [1, 2006.01]
H02H 3/28
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. . 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 [1, 2006.01]
H02H 3/30
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. . . using pilot wires or other signalling channel [1, 2006.01]
H02H 3/32
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. . 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 [1, 2006.01]
H02H 3/33
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. . . using summation current transformers (H02H 3/347 takes precedence) [3, 2006.01]
H02H 3/34
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. . . of a three-phase system [1, 2006.01]
H02H 3/347
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. . . . using summation current transformers [3, 2006.01]
H02H 3/353
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. . . . involving comparison of phase voltages [3, 2006.01]
H02H 3/36
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. . involving comparison of the voltage or current values at corresponding points of different systems, e.g. of parallel feeder systems [1, 2006.01]
H02H 3/38
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responsive to both voltage and currentresponsive to phase angle between voltage and current [1, 2006.01]
H02H 3/40
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responsive to ratio of voltage and current [1, 2006.01]
H02H 3/42
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responsive to product of voltage and current [1, 2006.01]
H02H 3/44
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responsive to the rate of change of electrical quantities [3, 2006.01]
H02H 3/46
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responsive to frequency deviations [3, 2006.01]
H02H 3/48
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responsive to loss of synchronism [3, 2006.01]
H02H 3/50
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responsive to the appearance of abnormal wave forms, e.g. ac in dc installations [3, 2006.01]
H02H 3/52
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. . responsive to the appearance of harmonics [3, 2006.01]
H02H 5/00
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Emergency 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) [1, 3, 2006.01]
H02H 6/00
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Emergency 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, 2006.01]
H02H 7/00
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Emergency 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 [1, 2006.01]
H02H 9/00
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Emergency protective circuit arrangements for limiting excess current or voltage without disconnection [1, 2006.01]
H02H 11/00
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Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result [1, 2006.01]
H02H 99/00
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Subject matter not provided for in other groups of this subclass [2009.01]
H02J
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CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWERSYSTEMS FOR STORING ELECTRIC ENERGY
H02K
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DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H 53/00; conversion of DC or AC input power into surge output power H02M 9/00)
H02M
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APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMSCONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWERCONTROL OR REGULATION THEREOF  (transformers H01F;  dynamo-electric converters H02K 47/00;  controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) [4, 5]
H02N
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ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
H02P
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CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERSCONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS [4]
H02S
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GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES (obtaining electrical energy from radioactive sources G21H 1/12; light sensitive inorganic semiconductor devices H01L 31/00; thermoelectric devices H10N 10/00; pyroelectric devices H10N 15/00; light sensitive organic semiconductor devices H10K 30/00) [2014.01]
H03
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ELECTRONIC CIRCUITRY
H04
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ELECTRIC COMMUNICATION TECHNIQUE
H05
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ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H10
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SEMICONDUCTOR DEVICESELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR [2023.01]
H99
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SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]

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