ClassID:

171693

G01R31/1227 - CPC Classification

Classification description:

Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere; Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials

Sub-classes:
Recent Application in this class:
#1
20260133247
2026-05-14

TEST STAND FOR CONFRONTING A TEST PIECE WITH A SIMULATED ELECTRICAL FAULT

#2
20260133241
2026-05-14

SYSTEM FOR DETECTING A PARTIAL DISCHARGE AND A METHOD OF OPERATING THEREOF

#3
20250323486
2025-10-16

SYSTEMS AND METHODS FOR DETECTING AND IDENTIFYING ARCING BASED ON NUMERICAL ANALYSIS

#4
20250231230
2025-07-17

METHOD, DEVICE, AND SYSTEM FOR PROCESSING TRANSMISSION LINE PULSE DATA

#5
20250180624
2025-06-05

PARTIAL DISCHARGE DETECTOR

#6
20250149649
2025-05-08

ELECTROLYTE LEAKAGE DETECTION UNIT AND BATTERY MODULE INCLUDING THE SAME

#7
20250116694
2025-04-10

APPARATUS AND METHOD FOR DETECTING HOLIDAYS IN LINERS

#8
20240419857
2024-12-19

TECHNOLOGIES FOR USING RESULTS OF PHYSICAL AND VIRTUAL PRODUCT TESTS TO ASSESS PRODUCT STANDARDS COMPLIANCE

#9
20240402235
2024-12-05

INSULATION INTEGRITY DETERMINATION

#10
20240369611
2024-11-07

ARC FAULT DETECTION APPARATUS, METHOD, DEVICE AND STORAGE MEDIUM

#11
20240283236
2024-08-22

Systems and methods for detecting and identifying arcing based on numerical analysis

#12
20240258966
2024-08-01

Arc Detection and Prevention in a Power Generation System

#13
20240248128
2024-07-25

SYSTEM AND METHOD FOR DETECTING BEARING INSULATION AND GROUND BRUSH HEALTH IN A GENERATOR

#14
20240125840
2024-04-18

SYSTEMS AND METHODS FOR TESTING PARTIAL DISCHARGE DURING THE LEAKAGE AND/OR SURGE TESTS FOR ELECTRIC MACHINES

#15
20240012053
2024-01-11

INSULATION RESISTANCE MONITORING APPARATUS PROVIDED WITH SWITCH AND CAPABLE OF DETECTING FAILURE IN SWITCH

#16
20240003958
2024-01-04

Rapid detection device for multi-channel sporadic transient partial discharge

#17
20230417816
2023-12-28

SYSTEM AND METHOD OF DETECTING LEAKAGE OF BATTERY CELL

#18
20230408569
2023-12-21

Monitoring device for emergency standby operation

#19
20230358799
2023-11-09

ARRESTER SYSTEM OF PARALLEL-CONNECTED ARRESTERS, AND METHOD FOR DETECTING FAULTS OF THE ARRESTERS

#20
20230349024
2023-11-02

PROCESS MEASUREMENT AND CONTROL AND MATERIAL CHARACTERIZATION IN A REMELTING FURNACE

#21
20230305051
2023-09-28

Partial discharge detecting method using ultraviolet imagery under pulse voltage condition

#22
20230273269
2023-08-31

DETERMINING STATES OF ELECTRICAL EQUIPMENT USING VARIATIONS IN DIAGNOSTIC PARAMETER PREDICTION ERROR

#23
20230160967
2023-05-25

Inspection equipment for inspecting secondary battery cell

#24
20230115294
2023-04-13

Detection of partial discharge

#25
20230099667
2023-03-30

Relay diagnosis device, relay diagnosis method, battery system, and electric vehicle

#26
20230059561
2023-02-23

IDENTIFICATION OF ARCING HAZARDS IN POWER DISTRIBUTION SYSTEMS

#27
20230041739
2023-02-09

Method and device for detecting insulation state in conversion system

#28
20230037313
2023-02-09

Insulation detection method and apparatus for fuel cell vehicle, and vehicle

#29
20230027986
2023-01-26

Monitoring aging of a component

#30
20220390500
2022-12-08

Apparatus and method for locating partial discharges in medium-voltage and high-voltage equipment

#31
20220390499
2022-12-08

Apparatus and method for detecting holidays in liners

#32
20220385056
2022-12-01

Systems and methods for detecting and identifying arcing based on numerical analysis

#33
20220381812
2022-12-01

Earth fault detection apparatus

#34
20220373587
2022-11-24

Method and photovoltaic inverter for determining the insulation resistance of a photovoltaic system to ground

#35
20220263462
2022-08-18

Arc detection and prevention in a power generation system

#36
20220251712
2022-08-11

INSULATION LAYER FORMATION METHOD, MEMBER WITH INSULATION LAYER, RESISTANCE MEASUREMENT METHOD AND JUNCTION RECTIFIER

#37
20220221501
2022-07-14

Insulation diagnostic system and insulation diagnostic method

#38
20220221500
2022-07-14

Insulation resistance detecting apparatus, system having the same, and method thereof

#39
20220196721
2022-06-23

Device for testing insulation properties of transformer

#40
20220179006
2022-06-09

Apparatus for measuring insulation resistance

#41
20220085593
2022-03-17

Arc fault circuit interrupter (AFCI) with arc signature detection

#42
20220065915
2022-03-03

Online and offline partial discharge detection for electrical drive systems

#43
20210356509
2021-11-18

High-voltage lead-through device and arrangement for handling data of a high-voltage lead-through device

#44
20210288610
2021-09-16

Arc detection and prevention in a power generation system

#45
20210272859
2021-09-02

Array substrate and fabrication method thereof, and display device

#46
20210148735
2021-05-20

Optical fiber detection device for detecting discharge fault of high-voltage bushing

#47
20210072319
2021-03-11

Power conversion device, rotating machine system using same, and diagnosis method for same

#48
20210018554
2021-01-21

Transformer assembly with medium frequency transformers

#49
20200400736
2020-12-24

Systems and methods for acoustically detecting dielectric breakdown and partial discharge events in electrical devices

#50
20200332948
2020-10-22

Systems and methods for detecting and identifying arcing based on numerical analysis

#51
20200292623
2020-09-17

Apparatus for measuring insulation resistance

#52
20200241066
2020-07-30

Intelligent on-line diagnosis and positioning method for winding deformation of power transformers

#53
20200219659
2020-07-09

High performance and reliability solid electrolytic tantalum capacitors and screening method

#54
20200209288
2020-07-02

Partial discharge detector

#55
20200076364
2020-03-05

DC arc detection and photovoltaic plant profiling system

#56
20200044434
2020-02-06

Arc fault circuit interrupter (AFCI) with arc signature detection

#57
20200011922
2020-01-09

System for diagnosing insulating element in BMS

#58
20200003805
2020-01-02

Partial discharge monitoring system with a compatibility-function for a voltage indication system

#59
20190288643
2019-09-19

ARC DETECTING APPARATUS AND CONTROL METHOD THEREOF, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM

#60
20190222017
2019-07-18

Systems and methods for detecting and identifying arcing based on numerical analysis

#61
20190189390
2019-06-20

System and method to monitor glitch energy

#62
20190170800
2019-06-06

System for testing a railway traction block

#63
20180350434
2018-12-06

Resistive memory transition monitoring

#64
20180266974
2018-09-20

Method and system for non-destructive testing

#65
20180252760
2018-09-06

Trending functions for partial discharge

#66
20180219394
2018-08-02

Arc detection apparatus

#67
20180106880
2018-04-19

System for mapping electromagnetic discharge fields

#68
20180106842
2018-04-19

Impedance measurement through waveform monitoring

#69
20180074113
2018-03-15

Insulation resistance measuring system and device

#70
20180062373
2018-03-01

Arc detection in electric meter systems

#71
20170345579
2017-11-30

High performance and reliability solid electrolytic tantalum capacitors and screening method

#72
20170336459
2017-11-23

SYSTEM FOR ANALYZING AND LOCATING PARTIAL DISCHARGES

#73
20170324236
2017-11-09

Arc detector and arc detection method

#74
20170307690
2017-10-26

Common mode noise simulator

#75
20170297447
2017-10-19

Battery system with a battery, which is designed to supply a high-voltage network with electric energy, and a measuring device for measuring at least one insulation resistance of the battery

#76
20170288376
2017-10-05

System and method for testing breakdown voltage/dielectric strength of spark plug insulators

#77
20170256315
2017-09-07

Resistive memory transition monitoring

#78
20170207746
2017-07-20

Arc detection and prevention in a power generation system

#79
20170168024
2017-06-15

Monitoring systems and methods for electrical machines

#80
20170155288
2017-06-01

Method of manufacturing magnetic shielding block for wireless power chargers

#81
20170146588
2017-05-25

Insulation degradation monitoring device

#82
20170146565
2017-05-25

System and method for high voltage stress testing plurality of parallel units

#83
20170108544
2017-04-20

Apparatus and method for monitoring an electrical insulation for an onboard power supply system of a vehicle

#84
20170082677
2017-03-23

Electrical arcing detector for arcing at series electrictrical connection

#85
20160334454
2016-11-17

Arc fault and ground fault interrupter using dual ADC

#86
20160320324
2016-11-03

Method for Predicting the Life of Transformer based on Fiber Grating Temperature Measurement System

#87
20160282398
2016-09-29

Method and device for ARC fault detection for photovoltaic inverter and photovoltaic inverter using the same

#88
20160274176
2016-09-22

Partial discharge detection system and method employing a synthetized synchronization signal

#89
20160252563
2016-09-01

System and method employing joint bypass circuit to test insulated joints in track systems

#90
20160245847
2016-08-25

Device and method for fault current detection

#91
20160223605
2016-08-04

Water-tree resistance evaluation method, insulation design method, and rotary electric machine

#92
20160209459
2016-07-21

DIAGNOSTIC METHOD FOR AUTOMATIC DISCRIMINATION OF PHASE-TO-GROUND PARTIAL DISCHARGE, PHASE-TO-PHASE PARTIAL DISCHARGE AND ELECTROMAGNETIC NOISE

#93
20160181799
2016-06-23

DC power generation system and protection method for DC power generation system

#94
20160061880
2016-03-03

Methods, apparatus and system for TDDB testing

#95
20160041215
2016-02-11

Surface potential distribution measuring device

#96
20150355237
2015-12-10

Measuring system for continuously monitoring a high-voltage bushing

#97
20150301102
2015-10-22

Method for recognizing partial discharges emitted inside or outside an electrical apparatus

#98
20150301093
2015-10-22

FUNCTIONAL UNIT FOR MEASURING THE INSULATION RESISTANCE OF AN ELECTRICAL SYSTEM

#99
20150287523
2015-10-08

Partial discharge detection device for transformer, and transformer including same

#100
20150285850
2015-10-08

Insulation resistance detection method and circuit for ungrounded DC power supply system

#101
20150268292
2015-09-24

Method of detecting partial discharging location of power device

#102
20150260777
2015-09-17

Partial discharge detection system and method with synchronization

#103
20150226782
2015-08-13

Method and system for estimating the insulation resistance between a battery and an electrical earth

#104
20150160282
2015-06-11

Partial discharge detection apparatus and method

#105
20150149102
2015-05-28

Online monitoring circuit and method of the series compensation spark gap divider return circuit

#106
20150115992
2015-04-30

GLASS SUBSTRATE FOR ELECTRONIC AMPLIFICATION AND METHOD FOR MANUFACTURING THE SAME

#107
20150115976
2015-04-30

CONTINUOUS WEB INLINE TESTING APPARATUS, DEFECT MAPPING SYSTEM AND RELATED METHODS

#108
20150109017
2015-04-23

Test system for high-voltage components

#109
20150091598
2015-04-02

Transformer fault detection apparatus and method

#110
20150077884
2015-03-19

Method and apparatus for localizing and quenching an arc

#111
20150073733
2015-03-12

Inspection system for evaluating electrical parts for unwanted partial discharge

#112
20150061696
2015-03-05

Battery protected against electric arcs

#113
20150054524
2015-02-26

Partial Discharge Measurement Device and Method

#114
20150045862
2015-02-12

Feedthrough assembly for an implantable medical device

#115
20150015273
2015-01-15

Method for determining an electrical property of cable insulation

#116
20140368215
2014-12-18

Method and apparatus for monitoring high voltage bushings safely

#117
20140354293
2014-12-04

Fault detection system

#118
20140327449
2014-11-06

Electricity meter hot socket detection

#119
20140324372
2014-10-30

System and method for analyzing voltage breakdown in electrostatic chucks

#120
20140320149
2014-10-30

Device for detecting fault in an electric line

#121
20140300368
2014-10-09

Surface potential distribution measuring device and surface potential distribution measuring method

#122
20140292365
2014-10-02

Electrical circuit testing

#123
20140266284
2014-09-18

Isolation testing of semiconductor devices

#124
20140198413
2014-07-17

Method for adapting an arc sensor

#125
20140195177
2014-07-10

Noise propagation immunity of a multi-string arc fault detection device

#126
20140176152
2014-06-26

Method and device for detecting a deterioration in the state of an insulation in an operating electric machine

#127
20140166622
2014-06-19

Tank-type circuit breaker

#128
20140159908
2014-06-12

Isolation resistance measuring apparatus having fault self-diagnosing function and fault self-diagnosing method using the same

#129
20140159755
2014-06-12

Partial discharge charge amount measuring method and device

#130
20140142874
2014-05-22

Home run arc detection at the photovoltaic string level using multiple current sensors

#131
20140142873
2014-05-22

Systems and methods of discriminating DC arcs and load switching noise

#132
20140095093
2014-04-03

Apparatus and method for measuring insulation resistance of battery

#133
20140067291
2014-03-06

Method and system for detecting arc faults and flashes using wavelets

#134
20140009169
2014-01-09

Method and a device for detecting defects in a packaging material

#135
20130310887
2013-11-21

Extracorporeal unit for inspecting the insulation of an electrical wire of an implanted medical device

#136
20130297236
2013-11-07

Method for detecting defective electrodes in a micro-electrode matrix

#137
20130285671
2013-10-31

Method and apparatus for protecting power transformers from large electro-magnetic disturbances

#138
20130262037
2013-10-03

PARTIAL DISCHARGE NOISE SEPARATION METHOD

#139
20130241591
2013-09-19

Apparatus and Method for Screening Electrolytic Capacitors

#140
20130234726
2013-09-12

Partial discharge sensor for a high voltage insulation monitoring device

#141
20130234722
2013-09-12

High sensitivity differential current transformer for insulation health monitoring

#142
20130229742
2013-09-05

Connection device comprising a control unit, battery case comprising such a connection device and method for controlling such a battery case

#143
20130191041
2013-07-25

Insulation defect detection of high voltage generator stator core

#144
20130179100
2013-07-11

System for analyzing and locating partial discharges

#145
20130176046
2013-07-11

MOBILE TRANSFORMER TESTING SYSTEM

#146
20130093457
2013-04-18

Method for testing an inverter drive rotating electric machine

#147
20130092208
2013-04-18

System and apparatus for arc detection and location in solar arrays

#148
20130090883
2013-04-11

Location method for locating a partial discharge emission zone and a device associated with said method

#149
20130033214
2013-02-07

Rotating electric machine for electric vehicle, drive control device and insulation diagnosis method

#150
20120330871
2012-12-27

USING VALUES OF PRPD ENVELOPE TO CLASSIFY SINGLE AND MULTIPLE PARTIAL DISCHARGE (PD) DEFECTS IN HV EQUIPMENT

#151
20120330583
2012-12-27

Instrument and method for detecting partial electrical discharges

#152
20120323372
2012-12-20

Electric arc discharge evaluation method, and associated test stand

#153
20120319703
2012-12-20

Instrument and method for detecting partial electrical discharges

#154
20120318320
2012-12-20

System and method for arc detection in solar power arrays

#155
20120316804
2012-12-13

TECHNIQUE FOR ARC DETECTION IN PHOTOVOLTAIC SYSTEMS AND OTHER SYSTEMS

#156
20120314327
2012-12-13

DC power supply insulation fault detection circuit

#157
20120306511
2012-12-06

Partial discharge experiment power supply system for extra-high voltage transformer and method thereof

#158
20120286764
2012-11-15

APPARATUS FOR DETECTING PARTIAL DISCHARGE FOR ELECTRIC POWER DEVICES

#159
20120265458
2012-10-18

Corona and partial discharge diagnostic device and method for using the same

#160
20120242348
2012-09-27

Device for detecting partial discharge in an insulation system of rotary electric machines

#161
20120235688
2012-09-20

APPARATUS FOR DETECTING PARTIAL DISCHARGE SIGNAL AND METHOD THEREOF

#162
20120229939
2012-09-13

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

#163
20120217922
2012-08-30

Motor driving apparatus

#164
20120215478
2012-08-23

Qualifying circuit board materials

#165
20120173180
2012-07-05

APPARATUS AND METHOD FOR EVALUATING HEALTH OF TAB CHANGER

#166
20120153965
2012-06-21

DC capacitor degradation alarm circuit

#167
20120139556
2012-06-07

Device for testing high-voltage equipment

#168
20120134058
2012-05-31

Method for detecting arcs in photovoltaic systems and such a photovoltaic system

#169
20120112760
2012-05-10

Arc detection and prevention in a power generation system

#170
20120095710
2012-04-19

Instrument and method for detecting partial electric discharges in an electric apparatus

#171
20110320146
2011-12-29

Device for detecting insulation degradation

#172
20110298469
2011-12-08

Arrangement and method for monitoring galvanic isolation of fuel cell device

#173
20110241697
2011-10-06

INSULATION DIAGNOSIS METHOD, INSULATION DIAGNOSIS SYSTEM, AND ROTATING ELECTRIC MACHINE

#174
20110234243
2011-09-29

Introduced in monitoring system of dielectric state of high voltage equipments with capacitive insulation, such as condensive bushings, current transformers, potential transformers and similar

#175
20110202294
2011-08-18

High voltage impulse test system with a correction algorithm

#176
20110137590
2011-06-09

Arcing event detection

#177
20110133761
2011-06-09

Qualifying circuit board materials

#178
20110133754
2011-06-09

Test arrangement for impulse voltage testing of electrical high-voltage components

#179
20110133749
2011-06-09

Test arrangement for AC testing of electrical high voltage components

#180
20110128013
2011-06-02

Test arrangement for AC testing of electrical high voltage components

#181
20110121853
2011-05-26

Test arrangement for AC voltage testing of electrical high voltage components

#182
20110109319
2011-05-12

Test configuration for the impulse voltage test of electric high-voltage components

#183
20110037666
2011-02-17

DEVICE AND METHOD FOR DETECTING DEFECTS WITHIN THE INSULATION OF AN INSULATED CONDUCTOR

#184
20110006802
2011-01-13

High sensitivity differential current transformer for insulation health monitoring

#185
20110006755
2011-01-13

High sensitivity differential current transformer for insulation health monitoring

#186
20100259280
2010-10-14

Apparatus for testing transformers

#187
20100241372
2010-09-23

Online partial discharge monitoring system of generator and method thereof

#188
20100215358
2010-08-26

Power line diagnostic system

#189
20100188099
2010-07-29

Apparatus and method for screening electrolytic capacitors

#190
20100141294
2010-06-10

Winding diagnostic system and method

#191
20100123464
2010-05-20

Ultra-high frequency partial discharge array sensor apparatus for high-voltage power apparatus

#192
20100116127
2010-05-13

System and method for locating sparks in electrostatic precipitators

#193
20100039096
2010-02-18

Transmissivity monitoring of an energy transmission element

#194
20090265122
2009-10-22

System and method for locating and analyzing arcing phenomena

#195
20090251154
2009-10-08

System and method for testing winding insulation resistance

#196
20090248327
2009-10-01

Instrument and method for measuring partial electrical discharges in an electrical system

#197
20090216479
2009-08-27

METHOD AND APPARATUS FOR TESTING A POWER ENGINEERING DEVICE

#198
20090212780
2009-08-27

Dielectric breakdown detector for HEV battery application

#199
20090195205
2009-08-06

Motor control system including electrical insulation deterioration detecting system

#200
20090171603
2009-07-02

METHODS OF DETECTING SERIES ARCS IN ELECTRICAL SIGNALS

#201
20090119035
2009-05-07

Method and apparatus for analyzing partial discharges in electrical devices

#202
20090102486
2009-04-23

Dimensions determination for insulating coatings

#203
20090088988
2009-04-02

Arcing event detection

#204
20080314765
2008-12-25

Method for detecting defective electrodes in a micro-electrode matrix

#205
20080307909
2008-12-18

Electrical condition monitoring method for polymers

#206
20080307906
2008-12-18

Fluid fitting electromagnetic effects test chamber

#207
20080288189
2008-11-20

ARC DETECTOR

#208
20080094022
2008-04-24

Insulation-resistance degradation detecting device for motors

#209
20080088314
2008-04-17

Methods and apparatus for analyzing partial discharge in electrical machinery

#210
20080084215
2008-04-10

Circuit arrangement and method for insulation monitoring for inverter applications

#211
20080027663
2008-01-31

System and method for locating and analyzing arcing phenomena

#212
20070258090
2007-11-08

Optical spark mode discriminator methods and systems

#213
20070139056
2007-06-21

PARTIAL DISCHARGE DETECTION APPARATUS AND DETECTION METHOD OF ELECTRICAL ROTATING MACHINE

#214
20070103184
2007-05-10

TDDB test pattern and method for testing TDDB of MOS capacitor dielectric

#215
20070057677
2007-03-15

Measuring device, and method for locating a partial discharge

#216
20070001712
2007-01-04

Hi-pot testing device with transfer table automatically connecting to testing signal generator

#217
20060208720
2006-09-21

Testing device and method of testing insulated handles used for servicing high voltage transmission lines

#218
20060203401
2006-09-14

Method and apparatus for generalized arc fault detection

#219
20060158197
2006-07-20

Insulation resistance deterioration detection method and insulation resistance deterioration detection device for motor, and motor driver

#220
20060109009
2006-05-25

Method and device for the detection of fault current arcing in electric circuits

#221
20060108875
2006-05-25

Integrity testing of isolation means in an uninterruptible power supply

#222
20060097597
2006-05-11

Method for monitoring electrical insulation on a rotor of an electrical machine

#223
20050268734
2005-12-08

Electrical condition monitoring method for polymers

#224
20050200378
2005-09-15

Apparatus and method for monitoring and/or analysis of electrical machines during operation

#225
20050184751
2005-08-25

Method and apparatus for detection of brush sparking and spark erosion on electrical machines

#226
20050104616
2005-05-19

Electric motor monitoring system

#227
20050035768
2005-02-17

Method and electromagnetic sensor for measuring partial discharges in windings of electrical devices

#228
20050012507
2005-01-20

Partial discharge monitoring apparatus and partial discharge remote monitoring system for rotating electric machines

#229
16697760
2024-01-30

Systems and methods for assessing cable insulation

#230
13801705
2014-12-30

Electrical arc detection methods and apparatus