ClassID:

171698

G01R31/1272 - 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 of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements

Recent Application in this class:
#1
20260149258
2026-05-28

ARCING DETECTION METHOD AND SYSTEM

#2
20260147062
2026-05-28

SYSTEM AND METHOD FOR DETERMINING CABLE OPERATIONAL QUALITY BASED ON ENVIRONMENT WHERE CABLE IS LOCATED

#3
20260133237
2026-05-14

METHOD FOR IDENTIFYING AND POSITIONING PARTIAL DISCHARGE OF HIGH-VOLTAGE CABLE

#4
20260110724
2026-04-23

SYSTEM AND METHOD FOR DETERMINING THE CONDITION OF A SUBSEA CIRCUIT

#5
20260106447
2026-04-16

CURRENT RETURN CHANNEL AND METHOD FOR THE USE OF A RESIDUAL CURRENT DEVICE WITH A DIFFERENTIAL CURRENT SENSOR IN AN UNGROUNDED DC POWER SUPPLY SYSTEM

#6
20260086136
2026-03-26

METHOD FOR DETERMINING MINIMUM NUMBER OF SAMPLES REQUIRED FOR OBTAINING DIELECTRIC BREAKDOWN STRENGTH AND ELECTRONIC DEVICE AND COMPUTER-READABLE STORAGE MEDIUM IMPLEMENTING SAID METHOD

#7
20260079206
2026-03-19

CONTROL DEVICE, ELECTRICAL APPLIANCE, AND FAULT DETECTION METHOD

#8
20260072071
2026-03-12

MULTIFUNCTIONAL ULTRA-HIGH VOLTAGE INSULATION PERFORMANCE TEST PLATFORM DEVICE

#9
20260056240
2026-02-26

SYSTEMS AND METHODS FOR MONITORING AN ELECTRICAL DISTRIBUTION SYSTEM

#10
20260029456
2026-01-29

METHOD AND SYSTEM FOR DETECTING ARCS IN A DC GRID

#11
20260027927
2026-01-29

ON-BOARD CHARGER AND INVERTER SYSTEM FOR VEHICLES

#12
20250379508
2025-12-11

POWER CONVERTER AND INSULATION DETECTION METHOD FOR POWER CONVERTER

#13
20250347730
2025-11-13

APPARATUS AND METHOD FOR PATTERN RECOGNITION OF PARTIAL DISCHARGE DEFECT TYPE

#14
20250341559
2025-11-06

METHOD AND APPARATUS FOR IDENTIFYING SOURCES OF PARTIAL DISCHARGE

#15
20250323486
2025-10-16

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

#16
20250306079
2025-10-02

PARTIAL-DISCHARGE DIAGNOSTIC DEVICE, PARTIAL-DISCHARGE DIAGNOSTIC METHOD, AND PARTIAL-DISCHARGE DIAGNOSTIC SYSTEM

#17
20250296696
2025-09-25

SYSTEM FOR AND METHOD OF IDENTIFYING SERIES ARCING

#18
20250271485
2025-08-28

SYSTEM FOR ESTIMATING PARTIAL DISCHARGE OCCURRENCE LOCATION BASED ON PRECISION TIME-SYNCHRONIZATION PROTOCOL (PTP)

#19
20250264516
2025-08-21

SHIELDING-TYPE INSULATION DETECTION STRUCTURE

#20
20250251436
2025-08-07

SYSTEM FOR DETECTING SERIES ARC FAULTS IN ELECTRIC CABLING

#21
20250244378
2025-07-31

INTEGRATED INSULATION INSPECTION SYSTEM INCLUDING CONDUCTIVE BRUSHES AND VOLTAGE AND CURRENT BALANCING CIRCUITS

#22
20250244377
2025-07-31

INTEGRATED INSULATION INSPECTION SYSTEM INCLUDING INSULATION INSPECTION STAND WITH CONDUCTIVE BRUSHES

#23
20250180625
2025-06-05

METHOD AND APPARATUS FOR EVALUATING INSULATION PERFORMANCE OF SUBMARINE CABLE, AND MEDIUM

#24
20250172604
2025-05-29

DEVICE FOR ACOUSTIC DETECTION OF AN ELECTRIC ARC

#25
20250164541
2025-05-22

CONTINUOUS MONITOR DEVICE HAVING AN ENHANCED VISUAL ALARM

#26
20250147093
2025-05-08

SENSING SYMMETRICAL AND ASYMMETRICAL INSULATION FAULTS BY THE ASYMMETRICALLY SWITCHABLE SENSING OF FAULT CURRENT

#27
20250132070
2025-04-24

Power Cable System Having Cable Sections with Different Highest Allowed Conductor Temperature, and A Method for Qualifying a Power Cable System

#28
20250130266
2025-04-24

METHOD FOR CALCULATING THE ELECTRIC FIELD INSIDE A DIELECTRIC MATERIAL LAYER OF A HIGH VOLTAGE ELECTRIC CABLE FOR DIRECT ELECTRIC CURRENT, AND SYSTEM THEREOF

#29
20250123315
2025-04-17

PARTIAL DISCHARGE MONITORING SYSTEM AND PARTIAL DISCHARGE MONITORING METHOD

#30
20250110166
2025-04-03

ONLINE MONITORING METHOD FOR INSULATION STATE OF CABLE FOR TRANSFORMER SUBSTATION

#31
20250102555
2025-03-27

PARTIAL DISCHARGE MONITORING SYSTEM AND PARTIAL DISCHARGE MONITORING METHOD

#32
20250102554
2025-03-27

METHOD, APPARATUS, AND SYSTEM FOR RISK ASSESSMENT OF AN INSULATION STATE OF ELECTRICAL EQUIPMENT, AND STORAGE MEDIUM

#33
20250067787
2025-02-27

DEVICE FOR SIMULATING HIGH-FREQUENCY CURRENT PROPAGATION OF PARTIAL DISCHARGE OF GIL/GIS

#34
20250035696
2025-01-30

METHOD AND DEVICE FOR INSULATION MONITORING OF A WATER-ELECTROLYSIS INSTALLATION

#35
20250035695
2025-01-30

METHOD AND DEVICE FOR DETECTING AND LOCATING INSULATION STATE OF CONVERSION SYSTEM

#36
20250035687
2025-01-30

AUTOMATED ELECTRICAL CONNECTOR WEAR MONITORING

#37
20250012873
2025-01-09

METHODS FOR MOUNTING AND TESTING A CENTRAL COMMUNICATION CABLE ASSEMBLY OF A DIRECTIONAL DRILL ROD

#38
20240426894
2024-12-26

METHOD AND ELECTRIC CIRCUIT ARRANGEMENT FOR SELECTIVE INSULATION MONITORING IN A POWER SUPPLY SYSTEM HAVING ISOLABLE SUBSYSTEMS

#39
20240417541
2024-12-19

POLYOLEFIN FORMULATION CONTAINING COMBINATION OF VOLTAGE STABILIZER COMPOUNDS

#40
20240410930
2024-12-12

A METHOD OF DETECTING A PARTIAL DISCHARGE SIGNAL

#41
20240404136
2024-12-05

ROTARY ELECTRIC MACHINE MANAGING SYSTEM

#42
20240402236
2024-12-05

SHIELDING-TYPE INSULATION DETECTION STRUCTURE

#43
20240393408
2024-11-28

DEVICE FOR CHECKING THE FUNCTION OF A CABLE SHIELD OF A WIRED COMMUNICATION CONNECTION

#44
20240353466
2024-10-24

INSULATION MONITORING DEVICE AND METHOD FOR CONTROLLING INSULATION MONITORING DEVICE

#45
20240319257
2024-09-26

TESTING DEVICE AND METHOD FOR TESTING A HIGH OR MEDIUM-VOLTAGE CABLE

#46
20240310425
2024-09-19

INSULATION DEGRADATION DIAGNOSIS MODEL CREATION APPARATUS, INSULATION DEGRADATION DIAGNOSIS APPARATUS, AND INSULATION DEGRADATION DIAGNOSIS METHOD

#47
20240302437
2024-09-12

Secondary Battery Cell Insulation Test Apparatus and Method Using the Same

#48
20240302425
2024-09-12

Secondary Battery Cell Insulation Test Apparatus and Method Using the Same

#49
20240283236
2024-08-22

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

#50
20240278671
2024-08-22

Multichannel Insulation Monitoring Device for an EVSE, Arrangement and Method

#51
20240264217
2024-08-08

ARC DETECTION METHOD AND SYSTEM

#52
20240264216
2024-08-08

SHIELDING LAYER DETECTION CIRCUIT AND TRANSMISSION SYSTEM

#53
20240230746
2024-07-11

INSULATION DETECTION METHOD AND APPARATUS FOR CONVERSION SYSTEM

#54
20240230745
2024-07-11

METHODS FOR ACCELERATING THE INSULATION RESISTANCE MEASUREMENT IN AN UNGROUNDED POWER SUPPLY SYSTEM

#55
20240195165
2024-06-13

CENTRALIZED FAULT DETECTION WITH FAULT RECOVERY SYSTEM AND METHOD

#56
20240159843
2024-05-16

DEVICE AND METHOD FOR HEATING AND SIMULTANEOUSLY APPLYING A HIGH VOLTAGE TO AN ELECTRIC CABLE

#57
20240133939
2024-04-25

METHODS FOR ACCELERATING THE INSULATION RESISTANCE MEASUREMENT IN AN UNGROUNDED POWER SUPPLY SYSTEM

#58
20240125840
2024-04-18

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

#59
20240061032
2024-02-22

SYSTEM AND METHOD FOR DETECTING CABLE SYSTEM SIGNAL INGRESS

#60
20240044967
2024-02-08

Method for determining insulation thermomechanical deterioration of VPI wire rod of pumped storage power generation motor

#61
20240036098
2024-02-01

Discharge Detection Device

#62
20240003959
2024-01-04

Insulation inspection method and insulation inspection apparatus

#63
20230417815
2023-12-28

Method and System for Inspecting an Insulation of a High Voltage Cable

#64
20230408570
2023-12-21

Partial discharge measurement apparatus, partial discharge measurement method, and partial discharge measurement system

#65
20230400501
2023-12-14

SYSTEMS AND METHODS FOR DETECTING DEFECTS IN MAGNET WIRE INSULATION

#66
20230384359
2023-11-30

DEVICE AND METHOD FOR LIVE DETECTING PARTIAL DISCHARGE OF OVERHEAD LINE IN DISTRIBUTION NETWORK AND EQUIPMENT ALONG LINE

#67
20230358800
2023-11-09

Discharge detector with learning mode for resetting settings to detecting occurrence of discharge

#68
20230357997
2023-11-09

MONITORING INSULATION RESISTANCE OF A SCREED ASSEMBLY OF A PAVING MACHINE

#69
20230349986
2023-11-02

ELECTRICAL TEST DEVICE AND METHOD

#70
20230341475
2023-10-26

ARC DETECTION SYSTEM, ARC DETECTION METHOD, AND RECORDING MEDIUM

#71
20230324440
2023-10-12

Monitoring system for evaluating a condition of an electrical grid

#72
20230258706
2023-08-17

METHOD FOR PARTIAL DISCHARGE RECOGNITION IN HIGH VOLTAGE APPLICATIONS AND UNIT USING THE METHOD

#73
20230258705
2023-08-17

Systems and Methods for Detecting Insulation Defects in an Underground Power Cable

#74
20230251297
2023-08-10

Noise tolerant electrical discharge detection

#75
20230236237
2023-07-27

Method for automatically creating installation-specific measuring profiles for an insulation monitoring system

#76
20230236236
2023-07-27

DETERMINING RESISTANCE IN AN ELECTRIC CIRCUIT

#77
20230213571
2023-07-06

Method and system for insulation monitoring in the aircraft power district and its loads

#78
20230204649
2023-06-29

Electrical circuit

#79
20230176106
2023-06-08

Electrical power cable monitoring device including partial discharge sensor

#80
20230160942
2023-05-25

Fault arc signal detection method using convolutional neural network

#81
20230129833
2023-04-27

Method for detecting an abnormal event in an electrical conductor of a medium voltage electrical device

#82
20230104141
2023-04-06

Interactive test equipment for quality evaluation of insulative electric resistance value of electric power cable

#83
20230098108
2023-03-30

Detecting faulty clamping

#84
20230049697
2023-02-16

System and method for detecting cable system signal ingress

#85
20230048584
2023-02-16

Apparatus and method for testing insulated high voltage devices

#86
20230042472
2023-02-09

Member for measuring a common mode voltage in an electrical network and device for detecting a fault using such a member

#87
20230041663
2023-02-09

Method and device for monitoring partial discharge

#88
20230034902
2023-02-02

Arc fault detection modules for vehicle electrical systems

#89
20230032870
2023-02-02

Device for detecting a fault in an electrical network, electrical network or equipment comprising such a device and method for detecting a fault

#90
20230026806
2023-01-26

Electrical tree test device for silicone rubber material for cable accessory and method for preparing sample

#91
20230025930
2023-01-26

Member for measuring a common mode voltage in an electrical network and device for detecting a fault using such a member

#92
20230020865
2023-01-19

LOCAL PARTIAL DISCHARGE MONITORING

#93
20220413035
2022-12-29

Insulation and fault monitoring for enhanced fault detection

#94
20220413034
2022-12-29

Insulation and fault monitoring for enhanced fault detection

#95
20220402364
2022-12-22

Protection system for aircraft electric propulsion motor and motor controller

#96
20220390501
2022-12-08

Fault-arc identification method, device and apparatus, and storage medium

#97
20220385056
2022-12-01

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

#98
20220373589
2022-11-24

Evaluation of partial discharge signals

#99
20220373588
2022-11-24

ELECTRIC POWER CONVERSION DEVICE, SYSTEM USING SAME, AND DIAGNOSTIC METHOD FOR SAME

#100
20220359893
2022-11-10

FUEL CELL STACK MODULE FAULT DETECTION SYSTEM AND METHOD

#101
20220349956
2022-11-03

Test apparatus and method for testing cable assembly

#102
20220344926
2022-10-27

Power line sag monitoring device

#103
20220341983
2022-10-27

DC electrical network

#104
20220334166
2022-10-20

Power cable

#105
20220326293
2022-10-13

Detection of a partial discharge

#106
20220308105
2022-09-29

Partial discharge (PD) detection apparatus for gas-insulated equipment

#107
20220291274
2022-09-15

Test device for electrical lines

#108
20220283216
2022-09-08

Active symmetrization via insulation monitoring for electrical vehicle interoperability with charging stations

#109
20220206056
2022-06-30

DIRECT-CURRENT ELECTRIC ARC DETECTION METHOD AND APPARATUS, DEVICE, SYSTEM, AND STORAGE MEDIUM

#110
20220196722
2022-06-23

Residential fault diagnostic tool

#111
20220140593
2022-05-05

Signal sampling circuit for arc detection

#112
20220132831
2022-05-05

Device for treating soil and method for operating such a device

#113
20220128614
2022-04-28

PARTIAL DISCHARGE DETERMINATION APPARATUS AND PARTIAL DISCHARGE DETERMINATION METHOD

#114
20220120803
2022-04-21

Insulation abnormality detection apparatus

#115
20220105822
2022-04-07

Method for operating a vehicle-external charging device for charging a vehicle and charging device

#116
20220091172
2022-03-24

Arc fault detection device with wideband sensor

#117
20220074983
2022-03-10

Buried cable break detector and method

#118
20220065916
2022-03-03

Arc detection method and apparatus using statistical value of electric current

#119
20220050145
2022-02-17

Overload current detection in a circuit interrupting device

#120
20210396800
2021-12-23

ELECTRIC INSULATION MONITORING ARRANGEMENT

#121
20210391100
2021-12-16

Self-Assembling Antenna Networks and Antenna Feed Circuits for Same

#122
20210373066
2021-12-02

Monitoring power systems utilizing phase locked loop and RF emissions, and high frequency envelope detector for same

#123
20210373065
2021-12-02

Partial discharge detection apparatus and partial discharge detection method

#124
20210364566
2021-11-25

Method for monitoring the electric insulation status of a piece of equipment for MV or HV electric systems

#125
20210356507
2021-11-18

STATE ANALYSIS OF AN ELECTRICAL OPERATING RESOURCE

#126
20210349141
2021-11-11

Charge detection and quantization

#127
20210341542
2021-11-04

Electric circuit arrangement and a method for the functional testing of a monitoring device for an electric power supply system

#128
20210333315
2021-10-28

Electrical assembly for detecting dielectric breakdown in direct current power transmission medium

#129
20210311131
2021-10-07

Electrical power cable monitoring device using low side electrode and earth ground separation

#130
20210278453
2021-09-09

Nuisance arc fault circuit interrupter (AFCI) circuit breaker tripping diagnostic tool

#131
20210263093
2021-08-26

Monitoring device and method for insulation monitoring of an ungrounded electric subsystem having a liquid cooling operated to ground

#132
20210255232
2021-08-19

Arc detection method and apparatus using statistical value of electric current

#133
20210247437
2021-08-12

Method for measuring a partial discharge in an electric drive system

#134
20210239749
2021-08-05

Optical Detector For A High-Voltage Cable Accessory And Method Of Optically Measuring Electrical Discharges

#135
20210203148
2021-07-01

Power line sag monitoring device

#136
20210199707
2021-07-01

Method and system for condition monitoring electrical equipment

#137
20210190850
2021-06-24

Electrical power cable monitoring device including partial discharge sensor

#138
20210190849
2021-06-24

Acoustic condition monitoring method and system for electrical power components, in particular transformers

#139
20210173016
2021-06-10

Electrical test device and method

#140
20210165033
2021-06-03

Device for monitoring the insulation and/or continuity of at least one electric cable and associated monitoring method

#141
20210165030
2021-06-03

METHOD FOR MEASURING TRAP PARAMETERS IN XLPE CABLE BASED ON POLARIZATION-DEPOLARZATION CURRENT TEST

#142
20210148194
2021-05-20

Inspection tool for a perforating gun segment

#143
20210116492
2021-04-22

CABLE ACCESSORY DEVICE AND SUBMARINE CABLE ACCESSORY SYSTEM

#144
20210096167
2021-04-01

Combined monitoring device for insulation-resistance monitoring and protective-conductor-resistance monitoring of a power supply system

#145
20210088573
2021-03-25

System for monitoring for partial discharges in an item of electrical equipment via gaseous emissions

#146
20210088572
2021-03-25

Antenna connectivity with shielded twisted pair cable

#147
20210063464
2021-03-04

Insulation monitoring device applied to power system and power system

#148
20210063459
2021-03-04

APPARATUS AND METHOD FOR ANALYZING CAUSE OF FAILURE DUE TO DIELECTRIC BREAKDOWN ON BASIS OF BIG DATA

#149
20210048471
2021-02-18

Electrical utility multifunctional device

#150
20210011072
2021-01-14

Insulation monitoring circuit for motor controller

#151
20210003640
2021-01-07

FAULT LOCATING METHOD AND SYSTEM BASED ON MULTI-LAYER EVALUATION MODEL

#152
20200400737
2020-12-24

Method for assessing and qualifying the functional features of instruments for measurement and diagnosis of partial discharges and facility for generating series of reference pulses of partial discharges

#153
20200379055
2020-12-03

Method, device and system for determining an arc on a power transmission line

#154
20200379028
2020-12-03

Localizing breakdown in a high power RF network

#155
20200332948
2020-10-22

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

#156
20200328584
2020-10-15

ARCING FAULT RECOGNITION UNIT

#157
20200326365
2020-10-15

Arc fault detection unit

#158
20200321768
2020-10-08

Arcing fault recognition unit

#159
20200319242
2020-10-08

Insulation testing apparatus and method of the same

#160
20200271713
2020-08-27

Method and device for online insulation monitoring of motor

#161
20200271712
2020-08-27

Arc detection device, corresponding method, and electronic component

#162
20200254882
2020-08-13

Automatic reclosing device and method for electrical vehicle charging cable control device

#163
20200249269
2020-08-06

Insulation detection circuit and detection method thereof for two-way on-board charger

#164
20200225275
2020-07-16

Insulation detection circuit, detection method and battery management system

#165
20200225274
2020-07-16

Discharge event monitoring device

#166
20200225273
2020-07-16

Power line sag monitoring device

#167
20200191856
2020-06-18

High frequency arc fault detection

#168
20200185902
2020-06-11

Low cost high frequency sensor for arc-fault detection

#169
20200182921
2020-06-11

Combined low frequency and high frequency current sensor

#170
20200174059
2020-06-04

Magnetic field measuring device and method for detecting a localization current in a branched AC power supply system

#171
20200173259
2020-06-04

Inspection tool for a perforating gun segment

#172
20200166561
2020-05-28

Method and testing device for measuring partial discharge pulses of a shielded cable

#173
20200116778
2020-04-16

Electric circuit arrangement and method for coupling an insulation monitoring device to an ungrounded power supply system

#174
20200103472
2020-04-02

Plasma-generating device

#175
20200088803
2020-03-19

System and method for calculating insulation resistance

#176
20200088011
2020-03-19

Inspection tool for a perforating gun segment

#177
20200072935
2020-03-05

Methods and devices for testing the function of an insulation monitoring device

#178
20200049769
2020-02-13

Method for detecting an insulation fault in a motor arrangement, method for detecting a motor phase interruption in a motor arrangement, and drive circuit for driving an electronically commutated motor

#179
20200018786
2020-01-16

Insulation resistance measuring device

#180
20200003822
2020-01-02

Partial discharge measurement system

#181
20200003805
2020-01-02

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

#182
20190386478
2019-12-19

Arc fault detection using single current sensor and wideband analog frontend

#183
20190339322
2019-11-07

Optical insulation-monitoring device and method for using and producing same

#184
20190339319
2019-11-07

Arc fault detection using time segmented captures

#185
20190324075
2019-10-24

MONITORING SERVICE CURRENT FOR ARC FAULT DETECTION IN ELECTRICAL BRANCH CIRCUITS

#186
20190323981
2019-10-24

Mineral insulated sheathed assembly with insulation resistance indicator

#187
20190310305
2019-10-10

Electrical equipment diagnostic systems

#188
20190310300
2019-10-10

Ground fault detection apparatus

#189
20190310298
2019-10-10

Testing shield continuity of a cable or cabling installation using common mode insertion loss

#190
20190296539
2019-09-26

DC electrical circuit protection apparatus and ARC detection method

#191
20190285698
2019-09-19

Insulation deterioration detection device for electric motor

#192
20190285441
2019-09-19

Elimination of floating potential when mounting wireless sensors to insulated conductors

#193
20190250204
2019-08-15

Device and method for insulation monitoring including identification of a faulty outer conductor in a three-phase ungrounded power supply system

#194
20190234888
2019-08-01

DISTRIBUTED SENSOR NETWORK FOR NONDESTRUCTIVELY MONITORING AND INSPECTING INSULATED ELECTRICAL MACHINE COMPONENTS

#195
20190227110
2019-07-25

Insulator leakage current detector and method of detecting insulator leakage current

#196
20190227105
2019-07-25

Electric meter contact arc detector employing dual-purposed inductive components

#197
20190222017
2019-07-18

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

#198
20190204389
2019-07-04

Verification device and method for verifying an electrical overvoltage between electrical conductors

#199
20190181628
2019-06-13

Arc fault current detector

#200
20190120894
2019-04-25

Circuit for arc detection in direct current and microprocessor

#201
20190120893
2019-04-25

Evaluation method for insulation performance of insulator

#202
20190120889
2019-04-25

Method of testing cable shield performance

#203
20190118671
2019-04-25

DEVICE, METHOD AND SYSTEM FOR MONITORING A CHARGING CABLE ON A CHARGING STATION

#204
20190113941
2019-04-18

Motor drive assembly

#205
20190079133
2019-03-14

Integrated circuit chip stack

#206
20190079132
2019-03-14

Method and Apparatus for Arc Fault Detection in Electrical Systems

#207
20190067927
2019-02-28

Hurst exponent based adaptive detection of DC arc faults in a vehicle high voltage system

#208
20190067056
2019-02-28

Parallel test structure

#209
20190056447
2019-02-21

Processing apparatus and method for detecting partial discharge pulses in the presence of noise signals

#210
20190020187
2019-01-17

Method, electrical circuit arrangements and insulation monitoring devices for an interference-resistant insulation monitoring of an ungrounded power supply system having a converter

#211
20190011492
2019-01-10

Circuit and method for detecting arc faults

#212
20190001821
2019-01-03

Method and system for monitoring electrical insulation resistance in an electric system

#213
20180375319
2018-12-27

Method and device for evaluating the energy produced by an electric arc in a photovoltaic installation

#214
20180356457
2018-12-13

Method of monitoring partial discharges in a high voltage electric machine, and connection cable therefore

#215
20180356456
2018-12-13

Method for insulation fault location and an insulation fault location system for an ungrounded power supply system

#216
20180348289
2018-12-06

Detection system for abraded wires in fuel tanks

#217
20180316178
2018-11-01

Black box apparatus for analyzing cause of arc interruption

#218
20180313887
2018-11-01

Direct current fault arc detection method

#219
20180292466
2018-10-11

Insulation fault location systems and methods for insulation fault location for a redundant DC power supply system coupled to diodes

#220
20180292446
2018-10-11

Insulation fault location systems and methods for insulation fault location for a redundant DC power supply system coupled to diodes

#221
20180287368
2018-10-04

Electronic protection device

#222
20180267094
2018-09-20

Technique for insulation monitoring in vehicles

#223
20180252760
2018-09-06

Trending functions for partial discharge

#224
20180231600
2018-08-16

Current conduction element and system for insulation monitoring

#225
20180226919
2018-08-09

ARC DETECTION APPARATUS

#226
20180217198
2018-08-02

Evaluation of phase-resolved partial discharge

#227
20180191145
2018-07-05

Household appliance and apparatus and method for detecting arc fault in the same

#228
20180178004
2018-06-28

Alarm for lead insulation abnormality

#229
20180156857
2018-06-07

System for detecting and indicating partial discharges and voltage in high-voltage electric power distribution systems

#230
20180120380
2018-05-03

Condition monitoring method and apparatus for high-voltage AC electrical systems

#231
20180106852
2018-04-19

Field Control Element For A High-Voltage Cable Accessory And Method of Optically Measuring Partial Discharges

#232
20180106846
2018-04-19

Insulator for overhead power lines with a protected leakage currents detector

#233
20180088168
2018-03-29

Systems and methods for evaluating insulation of formed wire or wires

#234
20180080970
2018-03-22

Method and system for hot socket detection in a utility meter

#235
20180062372
2018-03-01

Arc detection apparatus using electrical energy

#236
20180062370
2018-03-01

Set of high-voltage cables and method for producing a set of high-voltage cables

#237
20180038904
2018-02-08

Determining device for determining electrical leakage at specified period

#238
20180033569
2018-02-01

Current sense techniques for arc fault and ground fault receptacles

#239
20170370857
2017-12-28

DISTRIBUTED SENSOR NETWORK FOR NONDESTRUCTIVELY MONITORING AND INSPECTING INSULATED ELECTRICAL MACHINE COMPONENTS

#240
20170343598
2017-11-30

Accidental arc detection unit and method thereof

#241
20170343596
2017-11-30

Electric arc detection apparatus and electric arc detection method

#242
20170336466
2017-11-23

Water tree testing method and water tree testing apparatus

#243
20170328944
2017-11-16

Method and device for identifying arc faults in an ungrounded power supply system

#244
20170315205
2017-11-02

Methods and devices for testing the function of an insulation monitoring device

#245
20170307677
2017-10-26

Fixed impedance cabling for high voltage surge pulse

#246
20170299648
2017-10-19

Error detection device

#247
20170276714
2017-09-28

Deterioration specifying device and deterioration specifying method

#248
20170250592
2017-08-31

Rotating electric machine and defect detection method for rotating electric machine

#249
20170227589
2017-08-10

Abnormality detection device and method for insulation and welding

#250
20170222431
2017-08-03

ESD positive and negative detection and capture, and logging circuitry

#251
20170205459
2017-07-20

Electrical cable link apparatus and electrical cable system comprising the apparatus

#252
20170192048
2017-07-06

Partial discharge signal processing device

#253
20170184657
2017-06-29

Methods and systems for monitoring a fluid lifting device

#254
20170184656
2017-06-29

Monitoring of insulation conditions during electrical system events using differential current sensor

#255
20170176511
2017-06-22

Method and device for extended insulation fault location in an ungrounded power supply system and method for status monitoring of the power supply system

#256
20170160333
2017-06-08

Insulation problem detection apparatus

#257
20170160331
2017-06-08

CABLE TESTING DEVICE AND METHOD

#258
20170153286
2017-06-01

Methods and systems for real-time monitoring of the insulation state of wind-powered generator windings

#259
20170153285
2017-06-01

Method and device for detecting arcs

#260
20170146589
2017-05-25

ARC DETECTION APPARATUS

#261
20170138999
2017-05-18

ARC FLASH DETECTION DEVICE HAVING OPTIC FIBER SENSOR

#262
20170074920
2017-03-16

Partial discharge acquisition system comprising a capacitive coupling electric field sensor

#263
20170059643
2017-03-02

Partial discharge signal detection using resistive attenuation

#264
20170045572
2017-02-16

Circuit Arrangement For Generating a Test Voltage, in Particular For Testing The Insulation of Installed Cable

#265
20170045568
2017-02-16

Leakage current detection circuit, high voltage direct current system, and detection method and apparatus

#266
20170045565
2017-02-16

Electrical test device and method

#267
20170038424
2017-02-09

Partial discharge measurement device

#268
20160370420
2016-12-22

APPARATUS AND METHOD FOR SPARK FAULT DETECTION AND TYPING

#269
20160370415
2016-12-22

SPARK TESTER APPARATUS AND METHOD

#270
20160351042
2016-12-01

Arc detection apparatus, arc detecting method, and power system

#271
20160349303
2016-12-01

Partial discharge sensor

#272
20160349301
2016-12-01

Device and method for recognizing disruptions in an on-board power supply

#273
20160336731
2016-11-17

Direct current arc fault detector and circuit interrupter, and method of detecting an arc in a direct current power circuit

#274
20160315461
2016-10-27

Insulation monitoring device having voltage monitoring and underlying method

#275
20160291073
2016-10-06

Method for detecting electrical faults in a circuit

#276
20160282402
2016-09-29

Method and device for locating partial discharges in electric cables

#277
20160274176
2016-09-22

Partial discharge detection system and method employing a synthetized synchronization signal

#278
20160238648
2016-08-18

Circuit arrangement for cable checking, cable testing, cable diagnosis and/or cable fault localization and device with a circuit arrangement of that type

#279
20160231375
2016-08-11

Miniature arc fault current sensor and systems

#280
20160223605
2016-08-04

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

#281
20160193463
2016-07-07

Alarm for lead insulation abnormality

#282
20160178690
2016-06-23

Insulation inspection method and insulation inspection apparatus

#283
20160161543
2016-06-09

Partial discharge detection system

#284
20160161541
2016-06-09

Apparatus and method for diagnosing state of power cable and measuring remaining life thereof using VLF TD measurement data

#285
20160154051
2016-06-02

Active monitoring systems for high voltage bushings and methods related thereto

#286
20160139181
2016-05-19

Conductor assembly

#287
20160131692
2016-05-12

Cable Monitoring Apparatus

#288
20160124036
2016-05-05

Real-time insulation detector for feeding high-frequency low-voltage signal of power system

#289
20160124035
2016-05-05

Conductor assembly

#290
20160116520
2016-04-28

Partial discharge signal processing method and apparatus employing neural network

#291
20160069944
2016-03-10

High-powered high-voltage test device with integrated active air cooling

#292
20160054373
2016-02-25

Insulation inspection apparatus and insulation inspection method

#293
20160011249
2016-01-14

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

#294
20160003886
2016-01-07

Method and device for detecting arcing in electrical installation for DC power

#295
20150346269
2015-12-03

Mobile high-voltage tester

#296
20150346268
2015-12-03

Circuit board inspecting apparatus and circuit board inspecting method

#297
20150316596
2015-11-05

Circuit assembly, method for producing a test voltage, and testing device for determining a loss factor, which testing device contains said circuit assembly

#298
20150285852
2015-10-08

Partial discharge sensor

#299
20150268292
2015-09-24

Method of detecting partial discharging location of power device

#300
20150260778
2015-09-17

Diagnosis system for monitoring state of switchboard