ClassID:

216684

H02H3/083 - CPC Classification

Classification description:

Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for three-phase systems

Recent Application in this class:
#1
20250385506
2025-12-18

MANAGING LEAKAGE CURRENT IN SOLID-STATE CIRCUIT BREAKERS WITH MULTIPLE LOAD-TO-LINE CONNECTIONS SWITCHED WITH MICROCONTROLLER UNITS

#2
20250319777
2025-10-16

ELECTRIC VEHICLE

#3
20250316974
2025-10-09

THREE-PHASE ALTERNATIVE CURRENT SERIES TYPE HYBRID CIRCUIT BREAKERS

#4
20250293504
2025-09-18

MANAGING LEAKAGE CURRENT IN SOLID-STATE CIRCUIT BREAKERS WITH MULTIPLE LOAD-TO-LINE CONNECTIONS

#5
20250118959
2025-04-10

LATERAL FAULT ISOLATION

#6
20250112458
2025-04-03

TRANSFORMER ENERGIZATION WITH LOW INRUSH CURRENT

#7
20240356312
2024-10-24

ELECTRICAL PANELBOARD WITH ARC FAULT PROTECTION AND USER INTERFACE

#8
20240195166
2024-06-13

Circuit Breakers and Circuit Breaker Operational Methods

#9
20240114645
2024-04-04

MODULAR AND SCALABLE POWER DISTRIBUTION

#10
20230396054
2023-12-07

Current protection to prevent overcurrent in electrical grids and motors

#11
20230387677
2023-11-30

Method for processing interphase short circuit

#12
20230283064
2023-09-07

Phase-selective interruption for three-phase AC circuits with Thomson coil actuated switches and breakers

#13
20230261459
2023-08-17

Electric transmission line ground fault prevention systems using dual, high sensitivity monitoring devices

#14
20230187925
2023-06-15

ELECTRICAL PROTECTION SYSTEMS AND METHODS HAVING IMPROVED SELECTIVITY

#15
20230152353
2023-05-18

System and method of improving linearity of current sensor for a circuit interrupter

#16
20230065662
2023-03-02

Systems for detecting failures or faults in power conversion equipment

#17
20220385057
2022-12-01

Apparatus for protection against insulation failure

#18
20220285929
2022-09-08

Surge suppression circuit and rotating electrical machine

#19
20220181865
2022-06-09

Method and system for detecting faults in a low voltage three-phase network

#20
20220109293
2022-04-07

Normally open tie pulse testing

#21
20210203153
2021-07-01

Method and device for fault detection and protection of electrical networks

#22
20210184452
2021-06-17

Virtual electronic circuit breaker

#23
20210028611
2021-01-28

Reference signal generating method for distance and directional protection elements

#24
20200395757
2020-12-17

Fault handling

#25
20190237960
2019-08-01

Semiconductor current cutoff device including a semiconductor switch and a mechanical switch

#26
20190190247
2019-06-20

Differential protection test method, differential protection device and electrical unit including such a device

#27
20190165566
2019-05-30

Circuit for loss of phase detection

#28
20190157854
2019-05-23

Fault detection and protection during steady state using traveling waves

#29
20190115180
2019-04-18

Electrical power supply disconnector for a protection module and protection module including such a disconnector

#30
20190109451
2019-04-11

Circuit breaker failure protection relay and protection relay system

#31
20190107859
2019-04-11

Energy supply apparatus

#32
20190097417
2019-03-28

Generator stator ground protection using third harmonic

#33
20190074680
2019-03-07

Electrical switching device and associated configuration and diagnostic methods

#34
20190067929
2019-02-28

Circuit breaker and method for emitting a warning upon a threshold being exceeded

#35
20180351349
2018-12-06

Solid state protection circuits for a converter circuit

#36
20180351345
2018-12-06

Ground fault overvoltage relay device

#37
20180316176
2018-11-01

Method for identifying a fault event in an electric power distribution grid sector

#38
20180292448
2018-10-11

Time-domain line differential protection of electric power delivery systems

#39
20180278048
2018-09-27

Time-domain distance line protection of electric power delivery systems

#40
20180233895
2018-08-16

LOCALIZED APPLICATION OF HIGH IMPEDANCE FAULT ISOLATION IN MULTI-TAP ELECTRICAL POWER DISTRIBUTION SYSTEM

#41
20180212421
2018-07-26

Time-domain differential line protection of electric power delivery systems

#42
20180082816
2018-03-22

Method and apparatus for controlling a circuit breaker in an electrical energy supply network

#43
20180076611
2018-03-15

Energy supply

#44
20180034258
2018-02-01

Fault detection and protection during steady state using traveling waves

#45
20170373613
2017-12-28

Brake system and controller for use with a wellhead direct drive

#46
20170331271
2017-11-16

Compressor motor overload detection

#47
20170310244
2017-10-26

Power converter and method for operating a power converter to minimize a number of triggering processes of a semiconductor switch

#48
20170082675
2017-03-23

Time-domain directional line protection of electric power delivery systems

#49
20160373236
2016-12-22

Electrical power networks

#50
20160372916
2016-12-22

Method of operating a protection device, associated computer program product, protection device and electrical installation

#51
20160359333
2016-12-08

Power distribution system capable of automatic fault detection in a distributed manner and method thereof

#52
20160301201
2016-10-13

3 phase electric leakage current circuit breaker with electric shock protection

#53
20160248246
2016-08-25

DETECTING FAULTS IN ELECTRICITY GRIDS

#54
20160216306
2016-07-28

Automatic current transformer polarity correction

#55
20160170431
2016-06-16

Internal power supply of a device

#56
20160167523
2016-06-16

Electric traction system for a railway vehicle and protection method realized by such a system

#57
20160072270
2016-03-10

Fault detection and isolation using a common reference clock

#58
20160061873
2016-03-03

Method for locating distribution network circuit fault based on full waveform information

#59
20160025811
2016-01-28

Systems and methods for monitoring and protecting an electric power generator

#60
20150380923
2015-12-31

Overcurrent protection device and method

#61
20150377930
2015-12-31

Neutral pole current transformer module for circuit breaker and neutral pole current detecting apparatus for circuit breaker

#62
20150301112
2015-10-22

Switching device having a measuring apparatus

#63
20150280427
2015-10-01

System and method of controlling current-limiters in ring systems

#64
20150270699
2015-09-24

Transformer protection system

#65
20150236495
2015-08-20

Low voltage arc flash switch

#66
20150162740
2015-06-11

Safe Service Mode

#67
20150098156
2015-04-09

Arc flash mitigation system for use with generator excitation system

#68
20150092304
2015-04-02

Device and method for protection from an electric arc

#69
20150055266
2015-02-26

Magnetizing inrush current suppression device

#70
20140368961
2014-12-18

Control and protection device for low-voltage electrical appliance

#71
20140168827
2014-06-19

Motor protection system

#72
20140071574
2014-03-13

Electrical apparatus for the short-circuit protection of a three-phase load in a three-phase system

#73
20130317768
2013-11-28

Voltage based method for fault identification in a transmission line apparatus thereof

#74
20130229735
2013-09-05

High-impedance fault detection and isolation system

#75
20130229732
2013-09-05

Feed chain for a synchronous electric machine, electric traction system comprising such a chain, and control method for such a chain

#76
20130215545
2013-08-22

Electric switch

#77
20130088799
2013-04-11

Asset condition monitoring in an electric motor

#78
20130050882
2013-02-28

High impedance fault isolation system

#79
20130021707
2013-01-24

Protection coordination system

#80
20120226453
2012-09-06

CIRCUIT BREAKER TRIP UNIT

#81
20120176120
2012-07-12

System and method for monitoring current drawn by a protected load in a self-powered electronic protection device

#82
20110316469
2011-12-29

Input circuit for alternating current signal, and motor starter including the same

#83
20110316460
2011-12-29

Vehicle control system

#84
20110058300
2011-03-10

Circuit breaker

#85
20100271045
2010-10-28

Open fuse detection by neutral point shift

#86
20090323242
2009-12-31

Disconnector and overvoltage protection device

#87
20090257163
2009-10-15

CURRENT GAIN CONTROL OF CIRCUIT BREAKER TRIP UNIT

#88
20090027815
2009-01-29

Protective device having a circuit breaker, in particular a low-voltage circuit breaker

#89
20090027814
2009-01-29

Electronic tripping unit for a motor-circuit breaker of an electric motor

#90
20080259533
2008-10-23

Power distribution unit with two pole circuit breaker

#91
20070085549
2007-04-19

Apparatus and method for determining a faulted phase of a three-phase ungrounded power system

#92
16373878
2019-11-05

Detection and compensation of power phase loss