Patents-Review.com
ClassID:

216777 ⎘

H02H7/042 - CPC Classification

Classification description:

Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers for current transformers

Recent Application in this class:
#1
20260050047
2026-02-19

METHOD AND DEVICE FOR FAULT DETECTION AND METHOD AND SYSTEM FOR MONITORING AND/OR PERFORMING A PROTECTION FUNCTION, FOR A CURRENT TRANSFORMER

 #2
20240250518
2024-07-25

HIGH-IMPEDANCE DIFFERENTIAL PROTECTION USING A DIVERSITY OF SIGNALS

 #3
20230420932
2023-12-28

REDUCING TRANSFORMER INRUSH CURRENT

 #4
20230006436
2023-01-05

Protective relay and method for detecting disconnection of protective relay

 #5
20220254565
2022-08-11

Control system for transformer protection system

 #6
20220236339
2022-07-28

Protection of low-voltage distribution networks

 #7
20220103079
2022-03-31

Current detection circuit, power conversion device, and power system

 #8
20210175007
2021-06-10

Measuring method and high-voltage transducer with clean air

 #9
20200176975
2020-06-04

Current transformer

 #10
20190165565
2019-05-30

Power supply apparatus and image forming apparatus

 #11
20190150259
2019-05-16

System and method for protecting a transformer

 #12
20190150256
2019-05-16

System and method for compensating for back emission current in an X-ray generator

 #13
20190027934
2019-01-24

Apparatus and method for controlling circuit breaker for static synchronous compensator

 #14
20180261999
2018-09-13

Apparatus and method for detecting disconnection in secondary side of current transformer

 #15
20180226796
2018-08-09

Method and system for improved operation of power grid components in the presence of direct current (DC)

 #16
20180149691
2018-05-31

Methods and systems for open-phase detection in power transformers

 #17
20170227591
2017-08-10

Systems and methods for detecting turn-to-turn faults in windings

 #18
20170047734
2017-02-16

Docking module for a current transformer for preventing overvoltages and a current transformer having a docking module

 #19
20170047729
2017-02-16

Relay protection method and apparatus against LC parallel circuit detuning faults

 #20
20170045570
2017-02-16

Testing device, testing method, and program for power system protection control system

 #21
20160301205
2016-10-13

Circuit breaker having safety switching part

 #22
20150333509
2015-11-19

Protective circuit for a current transformer and current transformer with a protection circuit

 #23
20150280427
2015-10-01

System and method of controlling current-limiters in ring systems

 #24
20150270699
2015-09-24

Transformer protection system

 #25
20140306716
2014-10-16

Methods for detecting an open current transformer

 #26
20140192443
2014-07-10

Magnetizing inrush current suppression device

 #27
20130279048
2013-10-24

Method and an apparatus for supervision of current transformer in a differential protection system

 #28
20130135776
2013-05-30

Current transformer arrangement

 #29
20120050923
2012-03-01

Methodology for protection of current transformers from open circuit burden

 #30
20110242710
2011-10-06

Integral current transformer shunt resistor