ClassID:

216747

H02H3/46 - CPC Classification

Classification description:

Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to frequency deviations

Recent Application in this class:
#1
20260121396
2026-04-30

DETECTION OF SECONDARY ARC EXTINCTION AND OPTIMIZING AUTO RECLOSING ON A TRANSMISSION LINE

#2
20260074515
2026-03-12

EMP PROTECTION SYSTEM

#3
20250192537
2025-06-12

ARC FAULT DETECTION USING MACHINE LEARNING

#4
20250096550
2025-03-20

DETECTING ELECTRICAL ARCING IN HOUSEHOLD ELECTRICAL WIRING

#5
20240348041
2024-10-17

A CIRCUIT BREAKER

#6
20240345141
2024-10-17

MONITORING ASSEMBLY AND SYSTEM HAVING A MONITORING ASSEMBLY

#7
20240258788
2024-08-01

Discharge detection system

#8
20230275419
2023-08-31

Ground fault circuit interrupter using frequency recognition and measurement

#9
20230148196
2023-05-11

Detecting electrical arcing in household electrical wiring

#10
20230053431
2023-02-23

Arc fault detection using machine learning

#11
20220131362
2022-04-28

Ground fault circuit interrupter using frequency recognition and measurement

#12
20210151974
2021-05-20

Detecting electrical arcing in household electrical wiring

#13
20210119436
2021-04-22

Electrical device with power quality event protection and associated method

#14
20210028623
2021-01-28

Method and device for improved under-frequency load shedding in electrical power systems

#15
20200161849
2020-05-21

Ground fault circuit interrupter using frequency recognition and measurement

#16
20200059088
2020-02-20

Intelligent power strip with management of bistable relays to reduce current in-rush

#17
20200036180
2020-01-30

Method and device for reducing leakage currents

#18
20190386478
2019-12-19

Arc fault detection using single current sensor and wideband analog frontend

#19
20190181628
2019-06-13

Arc fault current detector

#20
20180316175
2018-11-01

Power system disturbance detection using power and frequency

#21
20180261995
2018-09-13

Electrical device with power quality event protection and associated method

#22
20180059154
2018-03-01

Determining the frequency of an alternating signal

#23
20180006445
2018-01-04

System and method for fault interruption with MEMS switches

#24
20170170644
2017-06-15

Method and circuit for detecting an electric arc in a circuit, and switching device using such a circuit

#25
20160329700
2016-11-10

System for detecting a falling electric power conductor and related methods

#26
20160315465
2016-10-27

Intelligent power strip with management of bistable relays to reduce current in-rush

#27
20160266207
2016-09-15

Fault detection in induction motors based on current signature analysis

#28
20160172840
2016-06-16

Electrical device with power quality event protection and associated method

#29
20150381111
2015-12-31

ARC fault detection and extinguishing

#30
20150276832
2015-10-01

Detection of islanding condition in electricity network

#31
20150233994
2015-08-20

Detecting a fault, in particular a transient fault, in an electrical network

#32
20140268461
2014-09-18

Control circuit for electric power circuit switch

#33
20140176151
2014-06-26

Methods for locating ground faults and insulation degradation condition in energy conversion systems

#34
20140168836
2014-06-19

ARRANGEMENTS FOR NETWORK PROTECTION

#35
20140067291
2014-03-06

Method and system for detecting arc faults and flashes using wavelets

#36
20140028116
2014-01-30

System for detecting a falling electric power conductor and related methods

#37
20130258537
2013-10-03

Method for detection of leakage or fault currents from equipment in an electrical power system

#38
20130128397
2013-05-23

Bypass capacitors for high voltage bias power in the mid frequency RF range

#39
20130123997
2013-05-16

Smart meters, and systems and method for electrical power reconnection

#40
20130018521
2013-01-17

Systems and methods for blackout protection

#41
20120327541
2012-12-27

Digital protection relay and operation method thereof

#42
20120081824
2012-04-05

METHOD AND APPARATUS FOR SUB-HARMONIC PROTECTION

#43
20120053744
2012-03-01

Systems and methods for under-frequency blackout protection

#44
20110043952
2011-02-24

DEVICE FOR THE PREVENTION OF SERIOUS FAULTS IN ELECTRICAL MAINS SUPPLY NETWORKS

#45
20100244563
2010-09-30

Under frequency/under voltage detection in a demand response unit

#46
20100224452
2010-09-09

Limitation of the loading of a power source

#47
20070297111
2007-12-27

LOW FREQUENCY SWITCH

#48
20070222294
2007-09-27

Underfrequency Load Shedding Protection System

#49
20070188947
2007-08-16

Arc fault detection apparatus using microcomputer

#50
20070100504
2007-05-03

System and method for detecting power system conditions

#51
20060255791
2006-11-16

Device and a method for power balancing