G01R31/333 - CPC Classification Index

ClassID:

171934 ⎘

G01R31/333 - 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 of circuit interrupters, switches or circuit-breakers Testing of the switching capacity of high-voltage circuit-breakers ; Testing of breaking capacity or related variables, e.g. post arc current or transient recovery voltage

Sub-classes:

G01R31/3333 » {Apparatus, systems or circuits therefor} 34

Recent Application in this class:

20260155644

2026-06-04

ARC FLASH MITIGATION DEVICE

20230395332

2023-12-07

Switchgear system that determines contact erosion in circuit breaker

20230197362

2023-06-22

Switchgear system that determines contact erosion in circuit breaker

20230015939

2023-01-19

ARC FLASH MITIGATION DEVICE

20220148826

2022-05-12

Pressure pulse diagnostics of an on-load tap changer

20220115857

2022-04-14

Arc flash mitigation device

20210072315

2021-03-11

System and method for assessing circuit interrupter operating mechanism reliability, and circuit interrupter

20180316178

2018-11-01

Black box apparatus for analyzing cause of arc interruption

20170219653

2017-08-03

Detecting method and apparatus for abnormal electrical connection in main circuit of switchgear

#10

20170187180

2017-06-29

Systems and methods for testing ground fault circuit interrupter breakers within enclosures

#11

20170170644

2017-06-15

Method and circuit for detecting an electric arc in a circuit, and switching device using such a circuit

#12

20170138994

2017-05-18

Checking a multi-pole electrical circuit breaker

#13

20170082670

2017-03-23

Distributed test method applicable to system-level test of intelligent high voltage equipment

#14

20160363628

2016-12-15

System and method for management of circuit breaker counter

#15

20160225543

2016-08-04

Mechanical wear, wipe and stroke measurement system for circuit breakers

#16

20160141117

2016-05-19

Mechanical wear, wipe and stroke measurement system for circuit breakers

#17

20160139206

2016-05-19

Contact wear detection by spectral analysis shift

#18

20160099569

2016-04-07

ENERGY GENERATING DEVICE WITH FUNCTIONALLY RELIABLE POTENTIAL SEPARATION

#19

20150355307

2015-12-10

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

#20

20150323604

2015-11-12

Method and apparatus for the measurement of a resistance of a switching contact of an electrical circuit breaker

#21

20150301112

2015-10-22

Switching device having a measuring apparatus

#22

20150285865

2015-10-08

Method for testing a latching magnet of a switch and test device for the latching magnet

#23

20150285864

2015-10-08

Method for testing a latching solenoid of a switch and testing device for carrying out the method

#24

20150198667

2015-07-16

Dual ground breaker testing system

#25

20150137819

2015-05-21

System and method for monitoring relay contacts

#26

20140210485

2014-07-31

Method and apparatus for detecting an arc in a DC circuit

#27

20130332096

2013-12-12

Universal jitter meter and phase noise measurement

#28

20130300423

2013-11-14

Measuring device for checking an electrical circuit breaker

#29

20130282317

2013-10-24

METHOD OF CONTROLLING FAULT CURRENT IN SYSTEM FOR MONITORING AND CONTROLLING POWER SYSTEM

#30

20050099741

2005-05-12

Tap changer monitoring