ClassID:

171696

G01R31/1254 - 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 gas-insulated power appliances or vacuum gaps

Recent Application in this class:
#1
20250314689
2025-10-09

DEVICE FOR SYNCHRONIZING A PARTIAL DISCHARGE MONITORING SYSTEM

#2
20250067787
2025-02-27

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

#3
20250012841
2025-01-09

ULTRA-HIGH FREQUENCY PARTIAL DISCHARGE DETECTION SENSOR HAVING LEAK-TIGHT STRUCTURE

#4
20240345153
2024-10-17

GIS PARTIAL DISCHARGE DIAGNOSING METHOD, MODEL TRAINING METHOD, DEVICE AND SYSTEM

#5
20230268723
2023-08-24

Method for determining the state of an electrical switchgear assembly, monitoring unit for an electrical switchgear assembly, and electrical switchgear assembly

#6
20230089717
2023-03-23

Overvoltage protection for HV bushing test tap

#7
20230076611
2023-03-09

Lifetime prediction of a gas filling of an electrical switchgear

#8
20220308105
2022-09-29

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

#9
20220003805
2022-01-06

Methods of Fitting and Retrofitting Transformers with Fault Indicators, and Fault Indicators Therefor

#10
20210341529
2021-11-04

Gas monitoring system for gas-insulated switchgears

#11
20210193352
2021-06-24

High-voltage bushing and method for monitoring its operation

#12
20210123966
2021-04-29

Partial discharge sensor

#13
20210102989
2021-04-08

Coaxial lead structure and method for radiating GIS partial discharge UHF signal outward

#14
20200271711
2020-08-27

Method and assembly for detecting partial discharges of an electrical operating device

#15
20200249268
2020-08-06

Method and arrangement for detecting partial discharges in an electric operating means

#16
20200141994
2020-05-07

Externally mountable fault indicator assemblies for electrical devices, systems incorporating same, and methods of using same

#17
20170356945
2017-12-14

Diagnostic system for electric power equipment

#18
20170330737
2017-11-16

Treating arcs in a plasma process

#19
20170287629
2017-10-05

Resonant Transformer

#20
20160349309
2016-12-01

Device for monitoring partial discharges in an electrical network

#21
20160245856
2016-08-25

PARTIAL DISCHARGE SENSOR

#22
20160099103
2016-04-07

Resonant transformer

#23
20160077163
2016-03-17

Method and apparatus for defect pre-warning of power device

#24
20160061897
2016-03-03

System for analysis of partial discharge defects of gas insulated switchgear

#25
20150377950
2015-12-31

Partial discharge monitoring system and partial discharge monitoring method

#26
20150369853
2015-12-24

Testing device for propagation characteristic of electromagnetic wave in gas insulated switchgear and testing method therefor

#27
20150355256
2015-12-10

Method and apparatus for detecting partial discharge within electrical equipment

#28
20150346267
2015-12-03

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

#29
20150285852
2015-10-08

Partial discharge sensor

#30
20150285849
2015-10-08

Antenna-and-cable connection-state verification device and verification method

#31
20150268292
2015-09-24

Method of detecting partial discharging location of power device

#32
20150204936
2015-07-23

Partial discharge sensor

#33
20140347091
2014-11-27

Device for detecting partial discharge for power transformer

#34
20140340096
2014-11-20

Method for identifying one or more simultaneously occurring partial discharge sources

#35
20140239969
2014-08-28

Method of locating an event transmitting a signal

#36
20140062498
2014-03-06

Device for monitoring internal arc in gas insulated switchgear

#37
20140028319
2014-01-30

Tank-type switching device

#38
20140012523
2014-01-09

Preventive diagnostic system for GIS based on IEC 61850

#39
20140002099
2014-01-02

Partial discharge sensor

#40
20130271116
2013-10-17

Combined measuring and detection system

#41
20130191050
2013-07-25

Method of locating internal arcing in a gas-insulated line and an associated device

#42
20130073257
2013-03-21

METHOD, DEVICE, AND SYSTEM FOR MONITORING A COMPONENT

#43
20120032686
2012-02-09

Voltage source for calibrating a fast transient voltage measurement system and calibration method

#44
20110172970
2011-07-14

Apparatus for removing the partial discharge noise of an electrical power facility and apparatus for detecting a partial discharge generated section

#45
20110132632
2011-06-09

Gas insulated device

#46
20110090134
2011-04-21

PARTIAL DISCHARGE DETECTOR

#47
20110080161
2011-04-07

Partial discharge detector for gas-insulated electric apparatus

#48
20100324746
2010-12-23

Partial discharge counter for diagnosis of gas insulated switchgear

#49
20100259275
2010-10-14

Device for detecting and locating electric discharges in fluid-insulated electrical equipment

#50
20100194403
2010-08-05

Partial discharge detection sensor and partial discharge detection device using the same

#51
20100176816
2010-07-15

Partial corona discharge detection

#52
20100079148
2010-04-01

UHF partial discharge and location measuring device for high-voltage power devices

#53
20090027062
2009-01-29

Partial discharge detection device

#54
20080103712
2008-05-01

Diagnosis Apparatus For Switchgear

#55
20080061793
2008-03-13

Detection and suppression of electrical arcing

#56
20080039334
2008-02-14

Dielectric strength test method of superconducting cable

#57
20060164100
2006-07-27

Method and system for measuring partial discharge

#58
20060132144
2006-06-22

Method and system for monitoring partial discharge in gas-insulated apparatus

#59
20060071667
2006-04-06

Method and system for measuring partial discharge

#60
20060049831
2006-03-09

Detection and suppression of electrical arcing

#61
20050184737
2005-08-25

Method and system for measuring partial discharge

#62
20050135028
2005-06-23

Gas insulating apparatus and method for locating fault point thereof

#63
17867852
2025-04-01

Faulty transformer partial discharge, vibration, combustible gases, and sound frequency monitor and alarm