ClassID:

171699

G01R31/1281 - 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 liquids or gases

Recent Application in this class:
#1
20260043840
2026-02-12

HANDHELD DEVICE FOR THE DETECTION OF ELECTROSTATIC DISCHARGE

#2
20250271488
2025-08-28

PARALLEL ELECTRON SWARM PARAMETER CALCULATION METHOD TAKING ION DYNAMICS INTO CONSIDERATION, AND RELATED APPARATUS

#3
20250076197
2025-03-06

FAULT DIAGNOSIS APPARATUS BASED ON FLUORESCENCE MULTIVARIATE CORRECTION ANALYSIS OF TRANSFORMER OIL

#4
20240288359
2024-08-29

SIMULTANEOUS DETECTION METHOD AND SYSTEM FOR DISSOLVED GAS AND PARTIAL DISCHARGE IN INSULATING OIL

#5
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

#6
20230266378
2023-08-24

Fault gas detection system for a liquid filled high voltage transformer

#7
20230026099
2023-01-26

System and method of determining age of a transformer

#8
20220003805
2022-01-06

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

#9
20210263093
2021-08-26

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

#10
20210190851
2021-06-24

Digital modulation/demodulation with active monitoring for measurement of power factor and capacitance in high-voltage bushings, transformers, reactors, and other electrical equipment with high-voltage insulation

#11
20210063496
2021-03-04

System and method of determining age of a transformer

#12
20210003640
2021-01-07

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

#13
20200141994
2020-05-07

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

#14
20190204377
2019-07-04

Stationary bath for testing electronic components

#15
20180335467
2018-11-22

TESTING METHOD AND TESTING APPARATUS

#16
20150204936
2015-07-23

Partial discharge sensor

#17
20150020572
2015-01-22

Method for diagnosing internal fault of oil-immersed transformer through composition ratio of dissolved gas in oil

#18
20140347071
2014-11-27

DEVICE AND METHOD FOR ASSESSING THE DEGRADATION OF THE INSULATION OF AN OIL-INSULATED TRANSFORMER

#19
20140340096
2014-11-20

Method for identifying one or more simultaneously occurring partial discharge sources

#20
20140306718
2014-10-16

Method and device for determining an operating parameter of a fluid insulated electrical apparatus

#21
20120290229
2012-11-15

DIAGNOSTIC METHOD AND APPARATUS FOR ASSESSING THE INSULATION CONDITION OF ELECTRICAL EQUIPMENT INSULATED WITH OIL

#22
20100274529
2010-10-28

ON-LINE DIAGNOSTIC AND PREDICTION OF DIELECTRIC BEHAVIOR OF POWER TRANSFORMERS

#23
20070227880
2007-10-04

Testing arrangement for measuring dielectric strength of liquid insulating media

#24
20050285604
2005-12-29

Partial discharge detecting sensor and gas insulated electric apparatus provided with a partial discharge detecting sensor

#25
16177953
2019-07-09

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