ClassID:

201776

H01F38/28 - CPC Classification

Classification description:

Adaptations of transformers or inductances for specific applications or functions; Instruments transformers for single phase ac Current transformers

Sub-classes:
Recent Application in this class:
#1
20250095911
2025-03-20

FUSE TRIPPING ACCELERATION ARRANGEMENT, CURRENT TRANSFORMER ARRANGEMENT AND ENERGY STORAGE SYSTEM

#2
20250076346
2025-03-06

APPARATUS AND METHOD FOR EMBEDDING CURRENT MEASUREMENT AND RINGING SUPPRESSION IN MULTICHIP MODULES

#3
20240312688
2024-09-19

MULTIPHASE POWER-HARVESTING SENSOR DEVICES AND SYSTEMS

#4
20240258026
2024-08-01

PHOTOVOLTAIC CONVERTER AND PHOTOVOLTAIC GENERATION SYSTEM

#5
20240151747
2024-05-09

Apparatus and method for embedding current measurement and ringing suppression in multichip modules

#6
20240145165
2024-05-02

CURRENT TRANSFORMER WITH IMPROVED PERFORMANCE

#7
20240087791
2024-03-14

Electric device comprising liquidfilled tank and cable box with current measuring device

#8
20230268113
2023-08-24

Support for mounting an accessory equipment assembly to a base of a bushing, a corresponding accessory equipment module and bushing

#9
20230017320
2023-01-19

Multifunction single core sensor for ground fault application

#10
20230008982
2023-01-12

Single-Event Transient (SET) Pulse Measuring Circuit Capable of Eliminating Impact Thereof, and Integrated Circuit Chip

#11
20210167770
2021-06-03

Semiconductor module

#12
20210142941
2021-05-13

Power monitoring and distributing systems

#13
20210096163
2021-04-01

Transformer and socket assembly for power meter installations

#14
20210057986
2021-02-25

Apparatus and method for embedding current measurement and ringing suppression in multichip modules

#15
20210035427
2021-02-04

Grounding cable warning device

#16
20200395169
2020-12-17

Current transformer apparatus that is mountable to a circuit board

#17
20200241051
2020-07-30

System and method for energy sensing and harvesting with fault detection

#18
20200176166
2020-06-04

Current transformer, protection device and electrical circuit breaker including such a transformer

#19
20200051738
2020-02-13

Current Transformer with Current Branches on Primary Conductor

#20
20190181628
2019-06-13

Arc fault current detector

#21
20190033345
2019-01-31

Current measuring device protected against electrical surges when opening the circuit

#22
20190027964
2019-01-24

Power conversion device and contactless power supply system

#23
20180261372
2018-09-13

Current converter with interchangeable head

#24
20180224491
2018-08-09

System and method for tuning transformers

#25
20180122549
2018-05-03

Multi-winding high sensitivity current transformer

#26
20180090267
2018-03-29

Current transformer and direct current source based on current transformer

#27
20180061598
2018-03-01

Switching apparatus and method for switching a current

#28
20180048187
2018-02-15

Flux-enhanced energy harvesting from current-carrying conductors

#29
20170317483
2017-11-02

Trip control circuit for circuit breaker

#30
20170229236
2017-08-10

Current transformer

#31
20170212152
2017-07-27

Circuit for sampling current and system for sampling current of Totem-Pole bridgeless circuit

#32
20160276950
2016-09-22

Unit current transformer device and magnetic induction power supplying device for linearly controlling output power by using the same

#33
20160274153
2016-09-22

Intelligent sensor network in a load center

#34
20160148761
2016-05-26

Terminal shield with integrated current transformer

#35
20160124024
2016-05-05

Self-correcting current transformer system

#36
20160054359
2016-02-25

Current measurement device and current calculation method

#37
20160041204
2016-02-11

Sensor devices and methods for use in sensing current through a conductor

#38
20150357907
2015-12-10

Electromagnetic induction type power supply device

#39
20150279553
2015-10-01

System and method for tuning transformers

#40
20150279542
2015-10-01

Current converter with interchangeable head

#41
20150228407
2015-08-13

Zero-phase-sequence current transformer, ground fault current detection device, power conditioner, and method for detecting malfunction of zero-phase-sequence current transformer

#42
20150212159
2015-07-30

Multi-winding high sensitivity current transformer

#43
20150116066
2015-04-30

Insulating support flange for current loop system

#44
20140361761
2014-12-11

AC/DC current transformer

#45
20140292458
2014-10-02

Magnetic device having integrated current sensing element and methods of assembling same

#46
20140232509
2014-08-21

Electrostatic shield for a transformer

#47
20130200971
2013-08-08

Split-core current transformer

#48
20130027818
2013-01-31

Transformer instrumentation and metering system

#49
20120315778
2012-12-13

DEVICE FOR REMOVABLY FIXING A CONDUCTOR TO A CURRENT TRANSFORMER HOUSING

#50
20120299573
2012-11-29

AC/DC current transformer

#51
20120218070
2012-08-30

Insulating support flange for current loop system

#52
20120153931
2012-06-21

Electronic current transformer based on complete self-excitation power supply

#53
20120049839
2012-03-01

CIRCUIT-BREAKER WITH ROGOWSKI CURRENT TRANSFORMERS FOR MEASURING THE CURRENT IN THE CONDUCTORS OF THE CIRCUIT-BREAKER

#54
20110267035
2011-11-03

CURRENT DETECTOR AND METHOD OF MANUFACTURING SAME

#55
20110242710
2011-10-06

Integral current transformer shunt resistor

#56
20110019387
2011-01-27

External neutral current sensor matched to a circuit breaker

#57
20110006802
2011-01-13

High sensitivity differential current transformer for insulation health monitoring

#58
20100259246
2010-10-14

SPLIT SHAPE CLOSED LOOP CURRENT TRANSDUCER

#59
20100176817
2010-07-15

Bulk current injection (BCI) probe with multiple, symmetrically spaced feeds

#60
20080117014
2008-05-22

Nanocrystalline core for a current sensor, single and double-stage energy meters and current probes containing them

#61
20080106252
2008-05-08

Integrated current sensing transformer and current sensing circuit using such transformer

#62
20080001694
2008-01-03

Organic Combined Insulated Dry Electronic Transformer for Outputting the Optical Signals

#63
20070145968
2007-06-28

Detector circuit to be used for measuring current

#64
20050288877
2005-12-29

Method and apparatus for instrument transformer reclassification

#65
20050005673
2005-01-13

Ferrite system

#66
20050001706
2005-01-06

Low power consuming current measurements for high currents

#67
17476818
2023-01-24

Double grounded neutral fault detection