ClassID:

216779

H02H7/0455 - 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; Differential protection of transformers taking into account saturation of current transformers

Recent Application in this class:
#1
20250047092
2025-02-06

METHOD AND APPARATUS FOR DIFFERENTIAL PROTECTION OF PROTECTION SECTION, RELAY PROTECTION DEVICE

#2
20230170685
2023-06-01

Differential protection using instrument transformer signal transducers

#3
20230155517
2023-05-18

Power converter and control method thereof

#4
20210384840
2021-12-09

Power converter and control method thereof

#5
20210075213
2021-03-11

Power grid protection via transformer neutral blocking systems and triggered phase disconnection

#6
20200106262
2020-04-02

Power grid protection via transformer neutral blocking systems and triggered phase disconnection

#7
20190027934
2019-01-24

Apparatus and method for controlling circuit breaker for static synchronous compensator

#8
20180358802
2018-12-13

Method and control device for current differential protection

#9
20170331279
2017-11-16

Differential protection method and differential protection device for performing a differential protection method

#10
20170222429
2017-08-03

Pre-magnetizing a transformer connected to a modular multilevel power converter

#11
20150293166
2015-10-15

Differential protection method in an electrical power supply system and protective apparatus for carrying out a differential protection method

#12
20150055266
2015-02-26

Magnetizing inrush current suppression device

#13
20140002937
2014-01-02

Differential protection in electrical power networks

#14
20130208386
2013-08-15

Transformer inrush current restraining control equipment

#15
20120019962
2012-01-26

Sensing and control electronics for a power grid protection system

#16
20100208403
2010-08-19

Method and system for through fault detection in electrical devices

#17
20090147412
2009-06-11

Transformer inrush current detector