ClassID:

171701

G01R31/14 - 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 Circuits therefor, e.g. for generating test voltages, sensing circuits

Recent Application in this class:
#1
20260153553
2026-06-04

METHOD FOR DETECTING AC AND DC ARC FAULTS BASED ON ROGOWSKI COIL MAGNETIC COUPLING RESONANCE

#2
20260140161
2026-05-21

Device For Insulation Detection And Method For The Same

#3
20260133242
2026-05-14

APPARATUS FOR CHECKING BATTERY AND CHECKING METHOD OF BATTERY

#4
20260133241
2026-05-14

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

#5
20260118402
2026-04-30

METHOD AND APPARATUS FOR DETECTING INSULATION DEFECT OF BATTERY, AND BATTERY SYSTEM

#6
20260110725
2026-04-23

METHOD FOR DETERMINING AN INSULATION RESISTANCE AND A DISCHARGE CAPACITANCE OF AN UNEARTHED POWER SUPPLY SYSTEM

#7
20260110724
2026-04-23

SYSTEM AND METHOD FOR DETERMINING THE CONDITION OF A SUBSEA CIRCUIT

#8
20260098887
2026-04-09

COMPUTER SYSTEM AND METHOD FOR VOLTAGE MEASUREMENTS

#9
20260086135
2026-03-26

INVERTER PULSE INSULATION TEST DEVICE

#10
20260086134
2026-03-26

ARC FAULT DETECTION DEVICE AND METHOD FOR CONTROLLING SAME

#11
20260072072
2026-03-12

Aliasing-Based Broadband Noise Power Estimation for Arc-Fault Detection

#12
20260029456
2026-01-29

METHOD AND SYSTEM FOR DETECTING ARCS IN A DC GRID

#13
20260024981
2026-01-22

System and Method for Quantifying Confidence Levels in Arc Fault Detection for Reliable Trip Decisions

#14
20260001429
2026-01-01

VEHICLE CHARGING SYSTEM FOR AN ELECTRIC VEHICLE HAVING ARC DETECTION

#15
20250389791
2025-12-25

LEAKAGE DETECTION SYSTEM

#16
20250383393
2025-12-18

DC POWER SYSTEM AND INSULATION RESISTANCE MONITOR DEVICE THEREOF

#17
20250383392
2025-12-18

TIME-DEPENDENT DIELECTRIC BREAKDOWN (TDDB) TEST UNIT CIRCUIT, MEASUREMENT CIRCUIT, AND METHOD THEREOF

#18
20250364162
2025-11-27

BREAKER BOX SYSTEM, POWER SUPPLY SYSTEM, AND VEHICLE

#19
20250283956
2025-09-11

POWER CONVERSION APPARATUS AND INSULATION IMPEDANCE DETECTION METHOD

#20
20250283933
2025-09-11

ELECTRICAL CIRCUIT ARRANGEMENT AND METHOD FOR INSULATION MEASUREMENT ON A BATTERY ELECTRIC VEHICLE

#21
20250277843
2025-09-04

INSULATION WITHSTAND VOLTAGE TESTING METHOD AND SYSTEM FOR BATTERY

#22
20250258212
2025-08-14

PARTIAL DISCHARGE DETECTION APPARATUS AND DETECTION METHOD

#23
20250251466
2025-08-07

CURRENT LEAKAGE DETECTION DEVICE

#24
20250237690
2025-07-24

INSULATION STATE DETECTION METHOD, SYSTEM, AND APPARATUS, STORAGE MEDIUM, AND PROGRAM PRODUCT

#25
20250237689
2025-07-24

SYSTEM AND METHOD FOR DETERMINING WHETHER TO REPLACE ION FILTER

#26
20250231257
2025-07-17

METHOD FOR TESTING A GROUND CONTACT UNIT, AND ELECTRIC CHARGING INFRASTRUCTURE

#27
20250231230
2025-07-17

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

#28
20250224437
2025-07-10

INSULATION DETECTION CIRCUIT AND INSULATION DETECTION METHOD

#29
20250216437
2025-07-03

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

#30
20250199052
2025-06-19

DEVICE AND METHOD FOR MONITORING AN INSULATION RESISTANCE OF A VEHICLE

#31
20250164542
2025-05-22

METHOD FOR CHECKING INSULATION BETWEEN LOW-VOLTAGE NETWORKS OF A VEHICLE, AND LOW-VOLTAGE SUPPLY ARRANGEMENT FOR A VEHICLE

#32
20250164541
2025-05-22

CONTINUOUS MONITOR DEVICE HAVING AN ENHANCED VISUAL ALARM

#33
20250147095
2025-05-08

POWER DEVICE CHARACTERIZATION ON THE WAFER USING AUTOMATED PARAMETRIC SYSTEM

#34
20250132552
2025-04-24

SYSTEMS AND METHODS FOR DETECTING AND IDENTIFYING ARCING

#35
20250110170
2025-04-03

CABLE INSULATION STATE DETECTION SYSTEM AND METHOD EMPLOYING FPGA CHIP

#36
20250102561
2025-03-27

METHOD AND APPARATUS FOR TESTING ELECTRONIC DEVICES

#37
20250076240
2025-03-06

SMART HOLIDAY DETECTION AND DATA STORAGE

#38
20250052816
2025-02-13

SYSTEM AND METHOD FOR E-MACHINE STATOR INSULATION RESISTANCE MONITORING

#39
20250044341
2025-02-06

ELECTRICAL DISCHARGE DETECTION SYSTEM

#40
20250044340
2025-02-06

ARCING DETECTION SYSTEM

#41
20250027984
2025-01-23

Battery Apparatus and Battery Management System for Measuring Insulation Resistance

#42
20250012842
2025-01-09

MEASUREMENT OF A QUALITY INDICATOR FOR AN ELECTRICAL INSULATOR

#43
20240426936
2024-12-26

INSPECTION CIRCUIT AND METHOD

#44
20240418765
2024-12-19

INSULATION FAULT MONITORING

#45
20240353493
2024-10-24

Method of detecting and positioning insulation failure of aircraft generator

#46
20240343118
2024-10-17

SYSTEM FOR DIAGNOSTIC OF A BATTERY PACK, AND METHOD THEREOF

#47
20240319257
2024-09-26

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

#48
20240319256
2024-09-26

SYSTEM AND METHOD FOR ANALYSIS OF THE INSULATION CONDITION OF AN ELECTRICAL MACHINE BY THE PHASES, AND, STORAGE MEDIA

#49
20240319255
2024-09-26

GROUND SENSING PLUG FOR DETERMINING THE AMOUNT OF ELECTROSTATIC DISCHARGE USING A NEURAL NETWORK

#50
20240310425
2024-09-19

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

#51
20240288485
2024-08-29

INSULATION MONITORING IN THE AC AIRCRAFT POWER DISTRICT

#52
20240272220
2024-08-15

INSULATION DIAGNOSTIC DEVICE AND INSULATION DIAGNOSTIC METHOD

#53
20240272219
2024-08-15

Insulation Resistance Measuring Device and Battery System Including the Same

#54
20240264218
2024-08-08

Insulation resistance detection circuit

#55
20240264217
2024-08-08

ARC DETECTION METHOD AND SYSTEM

#56
20240258788
2024-08-01

Discharge detection system

#57
20240241168
2024-07-18

DEFECT DETECTION METHOD AND APPARATUS FOR CUSHION LAYER OF CABLE, DEVICE, AND STORAGE MEDIUM

#58
20240230747
2024-07-11

SENSOR DEVICE FOR MONITORING THE DIELECTRIC STRENGTH OF A DIELECTRIC FLUID, IN PARTICULAR A FLUID FOR THE THERMAL CONDITIONING OF A BATTERY

#59
20240219445
2024-07-04

INSULATION MONITOR AND METHOD FOR OPERATING SAME

#60
20240210339
2024-06-27

SMART HOLIDAY DETECTOR

#61
20240203519
2024-06-20

TIME DEPENDENT DIELECTRIC BREAKDOWN RELIABILITY TESTING OF A SRAM

#62
20240183894
2024-06-06

PARTIAL DISCHARGE DETERMINATION APPARATUS AND PARTIAL DISCHARGE DETERMINATION METHOD

#63
20240168077
2024-05-23

TRANSFORMER BUSHING PARTIAL DISCHARGE MONITORING CHIP DEVICE AND METHOD

#64
20240159843
2024-05-16

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

#65
20240159816
2024-05-16

DEVICE AND METHOD FOR APPLYING AND MEASURING A TRANSIENT OVERVOLTAGE IN AN ELECTRICAL CABLE

#66
20240159815
2024-05-16

INSULATION RESISTANCE MONITORING APPARATUS CAPABLE OF MEASURING INSULATION RESISTANCE IN CONSIDERATION OF SURROUNDING ENVIRONMENT OF DEVICE UNDER MEASUREMENT

#67
20240142529
2024-05-02

Method of producing all-solid-state battery

#68
20240110965
2024-04-04

INSULATION SAMPLING CIRCUIT AND CONTROL METHOD THEREFOR, VOLTAGE WITHSTAND TEST METHOD, AND POWER CONSUMING DEVICE

#69
20240036097
2024-02-01

Electrical Discharge Detection System

#70
20240025279
2024-01-25

ELECTRIC VEHICLE (EV) CROSS CONNECTORS FOR EV CHARGING

#71
20240019481
2024-01-18

System and method for predicting electrical arcs in an electrical circuit

#72
20230402972
2023-12-14

PHOTOVOLTAIC SYSTEM, POWER SUPPLY SYSTEM, AND INSULATION FAULT DETECTION METHOD

#73
20230375640
2023-11-23

Leak Detection Device And Associated Electrical Power Supply

#74
20230358800
2023-11-09

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

#75
20230314496
2023-10-05

Broadband lossless partial discharge detection and noise removal device

#76
20230305052
2023-09-28

Insulation resistance detection circuit and method of detecting insulation resistance

#77
20230280390
2023-09-07

Devices and methods for arcing detection

#78
20230280389
2023-09-07

Insulation monitoring device using triangular wave and method for controlling thereof

#79
20230273252
2023-08-31

Insulation impedance detection circuit, impedance detection method, converter and photovoltaic centrifuge

#80
20230236238
2023-07-27

Field collapse pulser

#81
20230228802
2023-07-20

Method for detecting an electrical insulation fault between an electric power source and an electrical ground

#82
20230224365
2023-07-13

REMOTE MAPPING OF CIRCUIT SPEED VARIATION DUE TO PROCESS, VOLTAGE AND TEMPERATURE USING A NETWORK OF DIGITAL SENSORS

#83
20230213572
2023-07-06

ARRANGEMENT AND METHOD FOR DETECTING ARCS

#84
20230168292
2023-06-01

Battery management apparatus and method

#85
20230160943
2023-05-25

SYSTEM FOR A CABLE SECTION, TRANSMISSION SYSTEM FOR TRANSMITTING ELECTRIC ENERGY, AND METHOD FOR OPERATING THE SYSTEM

#86
20230128107
2023-04-27

Insulation resistor detection circuit, method, and apparatus, and storage medium thereof

#87
20230127297
2023-04-27

Method for checking the plausibility of insulation monitoring of a high-voltage system of an electric vehicle during the charging of a traction battery of the electric vehicle

#88
20230121656
2023-04-20

Systems and methods for detecting and identifying arcing

#89
20230115022
2023-04-13

Single-phase fault arc detector

#90
20230067832
2023-03-02

METHOD AND DEVICE FOR PERSONAL PROTECTION DURING HIGH-VOLTAGE TESTING

#91
20230057528
2023-02-23

Test circuits and semiconductor test methods

#92
20220413033
2022-12-29

Insulation monitoring device and control method therefor

#93
20220357388
2022-11-10

Monitoring arrangement for electrical equipment, and monitoring system

#94
20220326294
2022-10-13

Photovoltaic energy system and method for detecting ground insulation impedance

#95
20220276297
2022-09-01

Discharge detection device

#96
20220252657
2022-08-11

Converter system, method and apparatus for detecting insulation resistance of system, and medium

#97
20220244320
2022-08-04

LOW COST METHOD-B HIGH VOLTAGE ISOLATION SCREEN TEST

#98
20220214388
2022-07-07

Insulation detection circuit for voltage balance

#99
20220181864
2022-06-09

Arc fault detector

#100
20220128615
2022-04-28

Energy storage system and insulation detection method therefor

#101
20220113344
2022-04-14

Method for monitoring insulation monitoring circuit and battery management system

#102
20220091919
2022-03-24

Delay fault testing of pseudo static controls

#103
20220085645
2022-03-17

Power backup architecture using capacitor

#104
20220043047
2022-02-10

Method for inspecting insulation of a secondary battery

#105
20220018908
2022-01-20

Method of producing all-solid-state battery

#106
20220011360
2022-01-13

Devices and methods for arcing detection

#107
20220006279
2022-01-06

Arc detection system and method for an aircraft high voltage and direct current electrical circuit

#108
20210373065
2021-12-02

Partial discharge detection apparatus and partial discharge detection method

#109
20210356507
2021-11-18

STATE ANALYSIS OF AN ELECTRICAL OPERATING RESOURCE

#110
20210351574
2021-11-11

Spark plug heat rating measurement method and system based on spark discharge current active heating

#111
20210344185
2021-11-04

Systems and methods for detecting and identifying arcing

#112
20210333315
2021-10-28

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

#113
20210279391
2021-09-09

Semiconductor integrated circuit, circuit designing apparatus, and circuit designing method

#114
20210270910
2021-09-02

Ground fault detection device

#115
20210250405
2021-08-12

Remote mapping of circuit speed variation due to process, voltage and temperature using a network of digital sensors

#116
20210231726
2021-07-29

Insulation detection circuit, detection method and battery management system

#117
20210208183
2021-07-08

Probe card and test apparatus having the probe card

#118
20210199728
2021-07-01

Resonance voltage attenuation detection circuit, semiconductor device for switching power, and switching power supply

#119
20210190839
2021-06-24

DEVICE AND METHOD FOR PROCESSING PARTIAL DISCHARGE TECHNICAL FIELD

#120
20210132129
2021-05-06

System and method to generate multi-level voltage pulses for electrical insulation testing

#121
20210129675
2021-05-06

Method for detecting an isolation fault

#122
20210116492
2021-04-22

CABLE ACCESSORY DEVICE AND SUBMARINE CABLE ACCESSORY SYSTEM

#123
20210072317
2021-03-11

Insulation deterioration monitoring apparatus and insulation deterioration monitoring method

#124
20210072309
2021-03-11

Current sensor and method for sensing a strength of an electric current

#125
20210063464
2021-03-04

Insulation monitoring device applied to power system and power system

#126
20210036540
2021-02-04

Power backup architecture using capacitor

#127
20210018555
2021-01-21

METHOD FOR DETERMINING AT LEAST TWO EQUIVALENT INSULATION RESISTANCES OF AN ELECTRIC SYSTEM

#128
20210018554
2021-01-21

Transformer assembly with medium frequency transformers

#129
20210011072
2021-01-14

Insulation monitoring circuit for motor controller

#130
20200400736
2020-12-24

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

#131
20200271714
2020-08-27

METHOD AND SYSTEM OF PARTIAL DISCHARGE RECOGNITION FOR DIAGNOSING ELECTRICAL NETWORKS

#132
20200256905
2020-08-13

Method and devices for determining the elements of a dielectric equivalent circuit diagram for an insulation of an electric system

#133
20200225274
2020-07-16

Discharge event monitoring device

#134
20200182922
2020-06-11

Impulse voltage tester

#135
20200166561
2020-05-28

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

#136
20200142768
2020-05-07

Delay fault testing of pseudo static controls

#137
20200141995
2020-05-07

Time dependent dielectric breakdown test structure and test method thereof

#138
20200116778
2020-04-16

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

#139
20200072896
2020-03-05

Insulation detection method

#140
20200052478
2020-02-13

Systems and methods for detecting and identifying arcing

#141
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

#142
20200049756
2020-02-13

Apparatuses and methods involving adjustable circuit-stress test conditions for stressing regional circuits

#143
20200011922
2020-01-09

System for diagnosing insulating element in BMS

#144
20200003814
2020-01-02

Deterioration degree diagnosis device and deterioration degree diagnosis method for electrical connection portion

#145
20190383872
2019-12-19

Partial discharge synthesizer

#146
20190346501
2019-11-14

Gate charge measurements using two source measure units

#147
20190285683
2019-09-19

Partial discharge detecting system

#148
20190277905
2019-09-12

DC high potential insulation breakdown test system and method

#149
20190195949
2019-06-27

Test apparatus and methods for arc mitigation device

#150
20190195931
2019-06-27

Ground fault detection apparatus

#151
20190187006
2019-06-20

Monitoring a fault in an electrical equipment item

#152
20190162789
2019-05-30

Motor driving device and measuring method

#153
20190162773
2019-05-30

Motor driving device and measuring method

#154
20190154750
2019-05-23

Sensor to monitor health of metal oxide arresters

#155
20190154746
2019-05-23

Noise generation circuit, self-checking circuit, AFCI, and photovoltaic power generation system

#156
20190100104
2019-04-04

Ground fault detection apparatus

#157
20190086464
2019-03-21

Ground fault detection apparatus

#158
20190079132
2019-03-14

Method and Apparatus for Arc Fault Detection in Electrical Systems

#159
20190064280
2019-02-28

Battery detection circuit and battery management system

#160
20190064279
2019-02-28

Insulation detection circuit, detection method, and battery management system

#161
20180372790
2018-12-27

Built in test of remote isolation

#162
20180350434
2018-12-06

Resistive memory transition monitoring

#163
20180314214
2018-11-01

Self-diagnostic electrical circuit

#164
20180307553
2018-10-25

Delay fault testing of pseudo static controls

#165
20180292550
2018-10-11

Apparatus, device and method for measuring breakdown voltage

#166
20180252760
2018-09-06

Trending functions for partial discharge

#167
20180252759
2018-09-06

System for detecting electromagnetic discharge fields

#168
20180219394
2018-08-02

Arc detection apparatus

#169
20180151311
2018-05-31

Programmable arc fault circuit interrupter (AFCI)

#170
20180080972
2018-03-22

Detection of damper resistor degradation and failures

#171
20180074113
2018-03-15

Insulation resistance measuring system and device

#172
20180074100
2018-03-15

Electrical assembly and measurement circuit and method for monitoring a component thereof

#173
20180017611
2018-01-18

Method and apparatus for an electrical fault detecting system for a circuit

#174
20180017610
2018-01-18

Sensor to monitor health of metal oxide arresters

#175
20180011137
2018-01-11

Circuit arrangement for high-voltage tests and high-voltage testing system

#176
20170370982
2017-12-28

Panel structure with detecting circuit and detecting circuit for panel

#177
20170366176
2017-12-21

DETECTION DEVICE

#178
20170307690
2017-10-26

Common mode noise simulator

#179
20170276716
2017-09-28

Detection method and system for pantograph arc based on train power supply system

#180
20170269144
2017-09-21

Detection of electromagnetic field with electroactive polymers

#181
20170256315
2017-09-07

Resistive memory transition monitoring

#182
20170234922
2017-08-17

Apparatuses, systems and methods for detecting corona

#183
20170212163
2017-07-27

Circuit arrangement for a high-voltage test installation

#184
20170192048
2017-07-06

Partial discharge signal processing device

#185
20170168110
2017-06-15

Directional pulse injection into a microelectronic system for electrostatic test

#186
20170141569
2017-05-18

Cascaded multilevel converter self-test system and self-test method for the same

#187
20170132346
2017-05-11

Circuit modification

#188
20170131337
2017-05-11

Method and system for monitoring a pantograph of a railway vehicle and railway vehicle

#189
20170106754
2017-04-20

Device and method for monitoring an electrical insulation in a vehicle electrical system

#190
20170089972
2017-03-30

APPARATUS AND METHOD FOR TESTING UTILITY LINE POLES

#191
20170082677
2017-03-23

Electrical arcing detector for arcing at series electrictrical connection

#192
20170074920
2017-03-16

Partial discharge acquisition system comprising a capacitive coupling electric field sensor

#193
20170067953
2017-03-09

Method and device for insulation fault location having an adaptive test current determination

#194
20170045572
2017-02-16

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

#195
20170045562
2017-02-16

Method and device for ascertaining an insulation resistance, and high voltage battery system having a device of this type

#196
20170038420
2017-02-09

Sensitive, dangerous, vulnerable, or expendable installed equipment item(s) safe programmable and expandable resource electronic test equipment apparatuses and related methods for testing and interfacing with multiple classes or types of systems under test with or without the sensitive, dangerous, vulnerable, or expendable item(s) installed

#197
20170030957
2017-02-02

PARTIAL DISCHARGE DETECTION RELAY MATRIX FOR MULTIPLE LEAD ANALYSIS

#198
20170016949
2017-01-19

Method and apparatus for testing utility power devices

#199
20160349303
2016-12-01

Partial discharge sensor

#200
20160282403
2016-09-29

Partial discharge measurement method, partial discharge measurement device, and method of producing insulated wire

#201
20160274176
2016-09-22

Partial discharge detection system and method employing a synthetized synchronization signal

#202
20160252587
2016-09-01

Deterioration detecting apparatus and deterioration detecting method

#203
20160252563
2016-09-01

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

#204
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

#205
20160231375
2016-08-11

Miniature arc fault current sensor and systems

#206
20160209459
2016-07-21

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

#207
20160178690
2016-06-23

Insulation inspection method and insulation inspection apparatus

#208
20160161543
2016-06-09

Partial discharge detection system

#209
20160146879
2016-05-26

Methods, apparatus and system for voltage ramp testing

#210
20160137086
2016-05-19

Electrically powered vehicle and power supply system

#211
20160116520
2016-04-28

Partial discharge signal processing method and apparatus employing neural network

#212
20160069944
2016-03-10

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

#213
20160061897
2016-03-03

System for analysis of partial discharge defects of gas insulated switchgear

#214
20160054373
2016-02-25

Insulation inspection apparatus and insulation inspection method

#215
20160041219
2016-02-11

METHOD AND DEVICE FOR DETERMINING POWER SYSTEM PARAMETERS

#216
20160003886
2016-01-07

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

#217
20150377950
2015-12-31

Partial discharge monitoring system and partial discharge monitoring method

#218
20150362549
2015-12-17

Measuring apparatus

#219
20150355307
2015-12-10

Method for testing mainframe performance of different types of partial discharge detectors based on analog voltage signal injection

#220
20150355263
2015-12-10

System and method for detecting voltage dependence in insulation systems based on harmonic analysis

#221
20150349818
2015-12-03

Parallel connection method and device for multi-channel PD signals

#222
20150346269
2015-12-03

Mobile high-voltage tester

#223
20150346267
2015-12-03

Partial discharge sensor evaluation method and partial discharge sensor evaluation device apparatus

#224
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

#225
20150293167
2015-10-15

Insulation detecting device and insulation detecting method of non-grounded power supply

#226
20150285851
2015-10-08

Insulation detecting device

#227
20150285850
2015-10-08

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

#228
20150261903
2015-09-17

System and method for improved transaction based verification of design under test (DUT) to minimize bogus fails

#229
20150260778
2015-09-17

Diagnosis system for monitoring state of switchboard

#230
20150253370
2015-09-10

Method and system for monitoring a condition of electrical cables

#231
20150219740
2015-08-06

Protective device with automated self-test

#232
20150219707
2015-08-06

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Partial discharge sensor

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

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Insulation state detecting device

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Impulse voltage generation device

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DC high potential insulation breakdown test system and method

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High performance sensor for partial discharge signal-analyzing systems

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Method and apparatus for testing utility power devices

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Device for detecting a defect in insulation

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Fault diagnosis device for multiplexer

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High-voltage pulse test system

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Simulation parameter correction technique

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