ClassID:

216659

H02H1/046 - CPC Classification

Classification description:

Details of emergency protective circuit arrangements; Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks upon detecting saturation of current transformers

Recent Application in this class:
#1
20210231723
2021-07-29

Fault current calculation during transformer saturation using the waveform unsaturated region

#2
20210193423
2021-06-24

Current sensor output converter for circuit breakers that are configured for Rogowski coils

#3
20200358307
2020-11-12

Pre-charge current control device

#4
20200358283
2020-11-12

Secured fault detection in a power substation

#5
20200153227
2020-05-14

Systems and methods for dynamically switching a load of a current transformer circuit

#6
20190165566
2019-05-30

Circuit for loss of phase detection

#7
20190157982
2019-05-23

Device and method for premagnetization of a power transformer in a converter system

#8
20190067928
2019-02-28

Differential protection method, device and system for monitoring a line of an electrical energy supply network

#9
20180062373
2018-03-01

Arc detection in electric meter systems

#10
20160276115
2016-09-22

Electronic trip units powered by current transformers and circuit breakers comprising the same

#11
20160274169
2016-09-22

Secured fault detection in a power substation

#12
20110241654
2011-10-06

Method and apparatus for dynamic signal switching of a merging unit in an electrical power system

#13
20110025303
2011-02-03

Phasor estimation during current transformer saturation

#14
20090027814
2009-01-29

Electronic tripping unit for a motor-circuit breaker of an electric motor

#15
20080036559
2008-02-14

Distance protection relay and method

#16
20080012666
2008-01-17

Method and system of current transformer output magnitude compensation in a circuit breaker system

#17
20050140352
2005-06-30

Method for detecting saturation in a current transformer

#18
20050094344
2005-05-05

Method of compensating for distorted secondary current of current transformer

#19
20050035751
2005-02-17

Method for compensating secondary current of current transformers

#20
17877450
2023-07-18

Network primary feeder self protected transient limiting device