Patents-Review.com
ClassID:

216840 ⎘

H02H7/265 - 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; Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured making use of travelling wave theory

Recent Application in this class:
#1
20220341984
2022-10-27

System for monitoring the state of a cable through distributed transferometry

 #2
20210399545
2021-12-23

Accelerated zone-2 protection for transmission lines

 #3
20210265834
2021-08-26

Fire risk mitigation in electric power systems

 #4
20210018538
2021-01-21

High-fidelity voltage measurement using a capacitance-coupled voltage transformer

 #5
20200350760
2020-11-05

FAULT DETECTION IN ELECTRIC POWER DELIVERY SYSTEMS USING UNDERREACH, DIRECTIONAL, AND TRAVELING WAVE ELEMENTS

 #6
20200287377
2020-09-10

Universal traveling-wave-based protection and fault location for power system

 #7
20200182956
2020-06-11

Testing system for traveling wave fault detectors

 #8
20190391191
2019-12-26

Method and system for locating a fault in a mixed power transmission line

 #9
20190267796
2019-08-29

High speed protection of power transmission lines

 #10
20190195918
2019-06-27

High-fidelity voltage measurement using a capacitance-coupled voltage transformer

 #11
20190187202
2019-06-20

TRAVELING WAVE FAULT LOCATION WITH DISPERSION COMPENSATION IN ELECTRIC POWER DELIVERY SYSTEMS

 #12
20190157854
2019-05-23

Fault detection and protection during steady state using traveling waves

 #13
20190120892
2019-04-25

Method, protective device and protective system for detecting a fault on a line of an electrical power supply system

 #14
20190094292
2019-03-28

Secure traveling wave distance protection in an electric power delivery system

 #15
20190094291
2019-03-28

Distance protection using traveling waves in an electric power delivery system

 #16
20190094290
2019-03-28

Traveling wave identification using distortions for electric power system protection

 #17
20190094288
2019-03-28

ACCURACY OF EVENT LOCATING ON POWERLINES BASED ON FIELD DATA

 #18
20190013667
2019-01-10

Method of free wave energy protection for half-wavelength line based on one sided current

 #19
20180364293
2018-12-20

Fault detection of a transmission line

 #20
20180316183
2018-11-01

Method and system for protection in a mixed line

 #21
20180301895
2018-10-18

Direct current distance protection controllers

 #22
20180301894
2018-10-18

Relating to direct current protection schemes

 #23
20180294644
2018-10-11

Direct current distance protection schemes

 #24
20180292448
2018-10-11

Time-domain line differential protection of electric power delivery systems

 #25
20180278048
2018-09-27

Time-domain distance line protection of electric power delivery systems

 #26
20180212421
2018-07-26

Time-domain differential line protection of electric power delivery systems

 #27
20180145505
2018-05-24

Travelling wave protection of a transmission line based on high-pass filtering

 #28
20180145499
2018-05-24

Bipolar DC power transmission scheme

 #29
20180143238
2018-05-24

Travelling wave pilot protection of a transmission line based on time synchronization

 #30
20180106849
2018-04-19

Method and apparatus for detecting fault in a mixed configuration power transmission line

 #31
20180083437
2018-03-22

TIME-DOMAIN LINE DIFFERENTIAL PROTECTION OF ELECTRIC POWER DELIVERY SYSTEMS

 #32
20180069391
2018-03-08

Travelling wave protection of a transmission line

 #33
20180034265
2018-02-01

Method for protection in a mixed power transmission line

 #34
20180034258
2018-02-01

Fault detection and protection during steady state using traveling waves

 #35
20180024183
2018-01-25

Method and apparatus for detection of power system disturbance within a digital substation

 #36
20170358913
2017-12-14

Overcurrent element in time domain

 #37
20170356965
2017-12-14

Phase selection for traveling wave fault detection systems

 #38
20170199237
2017-07-13

Method, device and system for determining the fault location of a fault on a line of an electrical energy supply network

 #39
20170146613
2017-05-25

Fault detection in electric power delivery systems using underreach, directional, and traveling wave elements

 #40
20170131343
2017-05-11

Fault location using traveling waves

 #41
20170117701
2017-04-27

Method and apparatus for sensing a fault in a power system

 #42
20170082675
2017-03-23

Time-domain directional line protection of electric power delivery systems

 #43
20170054495
2017-02-23

Transmission line protection using traveling waves in optical ground wire fiber

 #44
20160266192
2016-09-15

Method of single-ended fault location in HVDC transmission lines

 #45
20160216311
2016-07-28

Method for identifying a faulted DC power transmission medium in a multi-terminal DC electrical network

 #46
20160216310
2016-07-28

Fault location using traveling waves

 #47
20160077150
2016-03-17

Fault detection in electric power delivery systems using underreach, directional, and traveling wave elements

 #48
20140254053
2014-09-11

Travelling-wave based fault protection of high-voltage transmission lines

 #49
20130096854
2013-04-18

Fault location using traveling waves

 #50
20130015878
2013-01-17

POWER SYSTEM FAULT ZONE DETECTION

 #51
20110227581
2011-09-22

Traveling wave based relay protection

 #52
20090230974
2009-09-17

Traveling wave based relay protection

 #53
20060012374
2006-01-19

Traveling wave based relay protection

 #54
20050110646
2005-05-26

Disturbance direction detection in a power monitoring system

 #55
16295196
2020-07-14

Digital electricity using carrier wave change detection