ClassID:

216784

H02H7/065 - 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 dynamo-electric generators; for synchronous capacitors against excitation faults

Recent Application in this class:
#1
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2024-10-17

SYSTEMS AND METHODS FOR BREAKER OPERATION IN POWER SYSTEMS

#2
20230288481
2023-09-14

System and Method for Detecting Broken-Bar Fault in Squirrel-Cage Induction Motors

#3
20220320852
2022-10-06

Protection system and method for electrical power plant

#4
20210399542
2021-12-23

Electrical system redundant overvoltage protection

#5
20200328588
2020-10-15

Method and apparatus for over voltage protection of a power system

#6
20200244068
2020-07-30

Over-voltage prevention apparatus and method of distribution line connected with distributed generator

#7
20200076338
2020-03-05

Generator loss-of-field protection

#8
20190229526
2019-07-25

CIRCUIT SYSTEM FOR COUPLING AN ELECTRICAL CONTROL UNIT TO A VOLTAGE SUPPLY, AND ELECTRICAL CONTROL UNIT

#9
20190115747
2019-04-18

Over-voltage protection device of generator and method for enhancing over-voltage protection function

#10
20180026434
2018-01-25

Excitation system

#11
20170331279
2017-11-16

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

#12
20160185231
2016-06-30

System for controlling supply voltage of on-board electrical network of motor vehicle

#13
20160167523
2016-06-16

Electric traction system for a railway vehicle and protection method realized by such a system

#14
20160043675
2016-02-11

Alternator overvoltage protection circuit

#15
20150229120
2015-08-13

Over-voltage prevention device

#16
20150198668
2015-07-16

Fault detection in brushless exciters

#17
20150155703
2015-06-04

Alternator overvoltage protection circuit

#18
20140307357
2014-10-16

Systems and methods for detecting over/under excitation faults

#19
20140268431
2014-09-18

Rotating diode assembly including overvoltage protection circuit

#20
20140192442
2014-07-10

Alternator overvoltage protection circuit

#21
20140168825
2014-06-19

Hardware-based, redundant overvoltage protection

#22
20130313826
2013-11-28

Wind turbine generator

#23
20130241463
2013-09-19

Doubly-fed generator and doubly-fed electric machine

#24
20130235492
2013-09-12

Switch unit and power generation system thereof

#25
20130229732
2013-09-05

Feed chain for a synchronous electric machine, electric traction system comprising such a chain, and control method for such a chain

#26
20130182354
2013-07-18

OVERVOLTAGE PROTECTION DURING GCU FAILURE

#27
20120262884
2012-10-18

Power converter arrangement and method for operating a power converter arrangement

#28
20120236452
2012-09-20

Protection relay

#29
20120194948
2012-08-02

Independent, redundant overvoltage protection for a generator

#30
20120182648
2012-07-19

Overvoltage limiter in an aircraft electrical power generation system

#31
20120106009
2012-05-03

Shunt regulator at excitation output of generator control unit for overvoltage protection

#32
20090296777
2009-12-03

METHOD AND APPARATUS FOR DETECTING A FAULT IN A BRUSHLESS EXCITER FOR A GENERATOR

#33
20090168275
2009-07-02

Short protection device for alternator

#34
20090167256
2009-07-02

System and method for suppressing DC link voltage buildup due to generator armature reaction

#35
20080084191
2008-04-10

Method and system for protecting voltage regulator driver circuitry during field coil short circuit condition

#36
20080074810
2008-03-27

Apparatus and method for providing protection for a synchronous electrical generator in a power system

#37
20060164045
2006-07-27

Power system stabilizer providing excitation limiter functions

#38
17741397
2023-07-18

Fast disconnects for generator systems