ClassID:

216745

H02H3/44 - 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 the rate of change of electrical quantities

Sub-classes:
Recent Application in this class:
#1
20260100582
2026-04-09

TRIPPING ENERGY LOADS DURING UNDER-FREQUENCY EVENTS BASED ON DECELERATION OF RATE OF CHANGE OF FREQUENCY

#2
20250357747
2025-11-20

TRANSIENT DIVERTING SUPPRESSOR WITH LOW DV/DT CURRENT

#3
20250233402
2025-07-17

ELECTRICAL PROTECTION DEVICE AND ASSOCIATED MONITORING METHOD

#4
20250219388
2025-07-03

Arc Fault Circuit Interrupter

#5
20250132556
2025-04-24

Method and Device for Protecting One or More Electrical Loads in the Event of a Short Circuit

#6
20250132553
2025-04-24

ELECTRICAL ASSEMBLY

#7
20240421585
2024-12-19

APPARATUS AND METHOD OF DETECTING AND CLASSIFYING FAULTS IN CIRCUIT INTERRUPTER IN MICROSECONDS

#8
20240118350
2024-04-11

Method of identifying a short-circuit like event in a circuit breaker

#9
20240047961
2024-02-08

CIRCUIT BREAKER DEVICE AND METHOD

#10
20240047960
2024-02-08

CIRCUIT BREAKER DEVICE AND METHOD

#11
20240030702
2024-01-25

METHOD AND SYSTEM FOR SHORT-CIRCUIT PROTECTION OF EMERGENCY STARTING POWER SUPPLY

#12
20230387674
2023-11-30

SYSTEM

#13
20230080160
2023-03-16

Systems and methods for high-speed falling conductor protection in electric transmission systems

#14
20220385105
2022-12-01

Fault detection and monitoring methods for safe operation of a WEVC system

#15
20220166206
2022-05-26

Circuit breaker device for DC voltage

#16
20220123662
2022-04-21

Power converter and control method therefor

#17
20220037879
2022-02-03

Method and device for controlling at least one circuit breaker of a power system

#18
20210296934
2021-09-23

Protection and control of wireless power systems

#19
20210296933
2021-09-23

Protection and control of wireless power systems

#20
20210261012
2021-08-26

Fault detection and monitoring methods for safe operation of a WEVC system

#21
20210184454
2021-06-17

BANDWIDTH-BOOSTED BIDIRECTIONAL SERIAL BUS BUFFER CIRCUIT

#22
20210119436
2021-04-22

Electrical device with power quality event protection and associated method

#23
20210057900
2021-02-25

Apparatus and method for arc fault detection based on signal-to-noise ratio

#24
20210028623
2021-01-28

Method and device for improved under-frequency load shedding in electrical power systems

#25
20200321768
2020-10-08

Arcing fault recognition unit

#26
20200321767
2020-10-08

FAULT-ARC DETECTION UNIT

#27
20200161999
2020-05-21

System and method for mitigating overvoltage on a DC link of a power converter

#28
20200127452
2020-04-23

Arc fault circuit interrupter

#29
20200028349
2020-01-23

SYSTEM AND METHOD FOR DETECTING ARC FAULTS

#30
20190255966
2019-08-22

Fault detection and monitoring methods for safe operation of a WEVC system

#31
20190229519
2019-07-25

Low-loss and fast acting solid-state breaker

#32
20190067929
2019-02-28

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

#33
20190058463
2019-02-21

Reverse current protection circuit

#34
20190006885
2019-01-03

Protection and control of wireless power systems

#35
20190006836
2019-01-03

Protection and control of wireless power systems

#36
20180331530
2018-11-15

System and method for controlling an electrical receptacle based on operational profile

#37
20180309286
2018-10-25

Current limiting for high current drivers

#38
20180301894
2018-10-18

Relating to direct current protection schemes

#39
20180261995
2018-09-13

Electrical device with power quality event protection and associated method

#40
20180254626
2018-09-06

Multi-node system fault management

#41
20180198271
2018-07-12

Semiconductor-switch control device

#42
20180145505
2018-05-24

Travelling wave protection of a transmission line based on high-pass filtering

#43
20180115149
2018-04-26

Method and device for monitoring an electrical network in a rail vehicle, and rail vehicle

#44
20180054051
2018-02-22

Protection method for protecting a generator or power station unit and protective device for carrying out such a method

#45
20170288387
2017-10-05

Wide range current monitoring system and method for electronic trip units

#46
20170248660
2017-08-31

Apparatus for detecting defect of electric power system

#47
20170237250
2017-08-17

Electronic circuit for single-event latch-up detection and protection

#48
20170141558
2017-05-18

Low-loss and fast acting solid-state breaker

#49
20170104327
2017-04-13

Semiconductor circuit interruption devices using current filtering to improve device coordination

#50
20170063070
2017-03-02

Wide range current monitoring system and method for electronic trip units

#51
20160329700
2016-11-10

System for detecting a falling electric power conductor and related methods

#52
20160293372
2016-10-06

Circuit interrupter with wireless unit, communication system including the same and associated method

#53
20160187408
2016-06-30

Arc fault detection system and method and circuit interrupter employing same

#54
20160172840
2016-06-16

Electrical device with power quality event protection and associated method

#55
20160149393
2016-05-26

Power distribution systems and methods of operating power distribution systems with partial differential protection

#56
20160141861
2016-05-19

Zone selective interlocking and circuit protection device monitoring in a power distribution system

#57
20160118785
2016-04-28

Electrical safety device miswire detection

#58
20160077162
2016-03-17

Fault detection

#59
20160043542
2016-02-11

Electrostatic discharge (ESD) protection circuit

#60
20160006239
2016-01-07

Interface having earth fault current

#61
20150340856
2015-11-26

Active ESD protection circuit

#62
20150326005
2015-11-12

Electronic circuit for protecting a load against over-voltage

#63
20150280427
2015-10-01

System and method of controlling current-limiters in ring systems

#64
20150162741
2015-06-11

Zone selective interlocking (ZSI) power distribution operating a ZSI power distribution system

#65
20150049407
2015-02-19

Electronic device and voltage monitoring method

#66
20140347767
2014-11-27

Power converter with switching element

#67
20140268461
2014-09-18

Control circuit for electric power circuit switch

#68
20140192443
2014-07-10

Magnetizing inrush current suppression device

#69
20140177121
2014-06-26

Temperature protection device of electronic device

#70
20140118001
2014-05-01

Fault current detecting circuit

#71
20140112022
2014-04-24

Electrical switching apparatus including transductor circuit and alternating current electronic trip circuit

#72
20140104902
2014-04-17

Method for the operation of an inverter, and inverter

#73
20140104731
2014-04-17

Arc fault detector with circuit interrupter

#74
20140067291
2014-03-06

Method and system for detecting arc faults and flashes using wavelets

#75
20140028116
2014-01-30

System for detecting a falling electric power conductor and related methods

#76
20140009856
2014-01-09

Device for detecting a fault in an AC supply

#77
20130265065
2013-10-10

Method and apparatus for detecting a glowing contact in a power circuit

#78
20130103220
2013-04-25

Safe exposed conductor power distribution system

#79
20130027817
2013-01-31

MICRO ELECTRO-MECHANICAL SWITCH (MEMS) BASED OVER CURRENT MOTOR PROTECTION SYSTEM

#80
20120285086
2012-11-15

Monitoring system

#81
20120259562
2012-10-11

Processing system for detecting in-situ arcing events during substrate processing

#82
20120229939
2012-09-13

Methods, systems, and apparatus and for detecting parallel electrical arc faults

#83
20120075759
2012-03-29

Safe Exposed Conductor Power Distribution System

#84
20120057266
2012-03-08

Systems and methods for independent self-monitoring

#85
20120056650
2012-03-08

METHOD FOR ACTIVATING THE COUNTER OF SECTIONALIZER

#86
20120056637
2012-03-08

Apparatus and method for quickly determining fault in electric power system

#87
20110292555
2011-12-01

Measuring transient electrical activity in aircraft power distribution systems

#88
20110265381
2011-11-03

Method and device for activating monitoring by a jamming protection function in an electrical closing system

#89
20110181296
2011-07-28

Arc fault detector with circuit interrupter

#90
20110080680
2011-04-07

Method for managing a fault event in a network for distributing electrical energy, and a corresponding electronic protection unit

#91
20110046856
2011-02-24

Method and device for computer-aided detection of jamming of an object

#92
20100312505
2010-12-09

Short-circuit recognition method for an electric network

#93
20100213996
2010-08-26

Circuit breaker

#94
20100007359
2010-01-14

Passive capacitively-coupled electrostatic (CCE) probe arrangement for detecting in-situ arcing events in a plasma processing chamber

#95
20090272035
2009-11-05

Collision monitoring system

#96
20090207535
2009-08-20

Arc fault detector

#97
20090206784
2009-08-20

Safety device for power window

#98
20090168274
2009-07-02

Method and system of providing overload and short-circuit protection for switched mode power supply

#99
20090147412
2009-06-11

Transformer inrush current detector

#100
20090109583
2009-04-30

ESD protection circuit for inside a power pad or input/output pad

#101
20080303460
2008-12-11

Method and device for identifying pinching situations in displacing drives in motor vehicles

#102
20080285184
2008-11-20

Power converters with operating efficiency monitoring for fault detection

#103
20080247110
2008-10-09

Undervoltage lockout circuit

#104
20080239599
2008-10-02

Clamping Voltage Events Such As ESD

#105
20080174922
2008-07-24

Method and apparatus for detecting ground fault current on a power line

#106
20080140354
2008-06-12

Arc fault detector with circuit interrupter

#107
20080084172
2008-04-10

DC motor mechanical shock protection system

#108
20070285859
2007-12-13

Fan system and power monitoring apparatus thereof

#109
20070279068
2007-12-06

Power diagnostic system and method

#110
20070262780
2007-11-15

ARC fault detector

#111
20070252603
2007-11-01

Systems, devices, and methods for arc fault detection

#112
20070201843
2007-08-30

Electric motor controller

#113
20070153436
2007-07-05

Low cost arc fault detection technique

#114
20070084120
2007-04-19

Opening and closing member control system

#115
20070058304
2007-03-15

Arc fault detection technique

#116
20070057678
2007-03-15

Arc fault circuit interrupter system

#117
20070052293
2007-03-08

Opening/closing member control apparatus and method for detecting pinching

#118
20070046226
2007-03-01

Motor control apparatus

#119
20060291121
2006-12-28

Device and a method for advanced protection from short circuit current

#120
20060227469
2006-10-12

Arc fault circuit interrupter for a compressor load

#121
20060226852
2006-10-12

Arc fault detector

#122
20060220604
2006-10-05

Opening and closing member control system

#123
20060214670
2006-09-28

Arc fault detector and method

#124
20060214668
2006-09-28

Arc fault detector

#125
20060212235
2006-09-21

Arc fault detector with circuit interrupter

#126
20060176186
2006-08-10

Fan monitoring for failure prediction

#127
20060137251
2006-06-29

Door opening/closing device

#128
20060114627
2006-06-01

Load recognition and series arc detection using load current/line voltage normalization algorithms

#129
20060072256
2006-04-06

Arc fault circuit interrupter and method of detecting an arc fault

#130
20050201026
2005-09-15

Residual current detection circuit

#131
20050179409
2005-08-18

Opening and closing body control device

#132
20050134285
2005-06-23

Arc fault detector

#133
20050088109
2005-04-28

Electronic ballast having a protective circuit for a switching transistor of a converter

#134
20050067987
2005-03-31

Power-window jamming preventing apparatus