ClassID:

171540

G01R21/1331 - CPC Classification

Classification description:

Arrangements for measuring electric power or power factor by using digital technique Measuring real or reactive component, measuring apparent energy

Recent Application in this class:
#1
20260058231
2026-02-26

BATTERY SWELL DETECTION AND ADAPTIVE ANTENNA TUNING

#2
20250271474
2025-08-28

INTELLIGENT NON-INTRUSIVE LOAD MONITORING SYSTEM

#3
20250271472
2025-08-28

MEDIAN FILTER TO PREVENT SUB-CYCLE NUISANCE TRIGGERING IN AN ELECTRICAL POWER SYSTEM

#4
20250180613
2025-06-05

REAL TIME LIVE LINE MEASUREMENT OF CURRENT AND VOLTAGE TRANSFORMERS

#5
20250147563
2025-05-08

POWER CONVERSION DEVICE

#6
20250020703
2025-01-16

SENSOR-BASED ENERGY MANAGEMENT ENCLOSURE AND DISTRIBUTED ENERGY RESOURCE MANAGEMENT BASED ON SENSOR DATA

#7
20240418755
2024-12-19

METHOD FOR ESTABLISHING ELECTRICAL CONSUMPTION OF AN ELECTRICAL INSTALLATION

#8
20240385229
2024-11-21

MEASUREMENT APPARATUS AND MEASUREMENT METHOD

#9
20240361364
2024-10-31

Engageable Electric Connector for Supplemental Electric Circuit

#10
20240125830
2024-04-18

POWER-METER APPARATUS, CIRCUITS AND METHODS

#11
20240120771
2024-04-11

Monitoring and optimisation of electricity consumption

#12
20240036121
2024-02-01

Real time live line measurement of metrological properties of current transformers

#13
20230400484
2023-12-14

Intelligent electronic device and method thereof

#14
20230350097
2023-11-02

System and method for estimating photovoltaic energy through empirical derivation with the aid of a digital computer

#15
20230349959
2023-11-02

Power measurement device

#16
20230341446
2023-10-26

Intelligent non-intrusive load monitoring system

#17
20230314490
2023-10-05

Power consumption evaluation device and power consumption evaluation method

#18
20230280375
2023-09-07

Method and apparatus for contactless voltage and current estimation through measurements of electric and magnetic fields with redundant sensor arrays

#19
20220373621
2022-11-24

Power calculation method of magnetic circuit

#20
20220224341
2022-07-14

Apparatus and method for minimum energy tracking loop

#21
20220050128
2022-02-17

Systems and methods for analyzing power quality events in an electrical system

#22
20220043041
2022-02-10

Method for measuring degree of stability of generator and power transmission line, and electrical grid control system

#23
20220043038
2022-02-10

SENSOR-BASED ENERGY MANAGEMENT ENCLOSURE AND DISTRIBUTED ENERGY RESOURCE MANAGEMENT BASED ON SENSOR DATA

#24
20210399550
2021-12-23

System and method for dynamically estimating inverter-based resource reactive power capability

#25
20210384761
2021-12-09

Systems and methods for analyzing and optimizing dynamic tolerance curves

#26
20210328457
2021-10-21

Power flow analysis device and power flow analysis method for AC/DC hybrid system

#27
20210293862
2021-09-23

Smart plug and method for determining operating information of a household appliance by a smart plug

#28
20210285991
2021-09-16

System and method for estimating photovoltaic energy through irradiance to irradiation equating with the aid of a digital computer

#29
20210270876
2021-09-02

SYSTEM FOR IDENTIFYING ELECTRICAL DEVICES

#30
20210231709
2021-07-29

METHOD AND APPARATUS FOR CONTACTLESS VOLTAGE AND CURRENT ESTIMATION THROUGH MEASUREMENTS OF ELECTRIC AND MAGNETIC FIELDS WITH REDUNDANT SENSOR ARRAYS

#31
20210184461
2021-06-17

Systems and methods for analyzing effects of electrical perturbations on equipment in an electrical system

#32
20210116484
2021-04-22

Primary measuring device for measuring a current effective power

#33
20210096162
2021-04-01

Measurement method, program and device for measuring power or energy of an electric motor

#34
20200271705
2020-08-27

System and method for estimating photovoltaic energy through linearly interpolated clearness indexes with the aid of a digital computer

#35
20200212564
2020-07-02

Method and device for estimating the squint of an antenna and method and device for following the pointing of an antenna implementing such a method and device, based on a harmonic analysis

#36
20200209291
2020-07-02

System and method for performing a line-wise power flow analysis for a power system

#37
20200132738
2020-04-30

Bus terminal for automation system and method for monitoring a current-supply network

#38
20200116768
2020-04-16

SOCKET WITH POWER DISPLAY FUNCTION

#39
20200110115
2020-04-09

Systems and methods for operating generators based on generator steady state stability limits

#40
20200081044
2020-03-12

POWER FLOW CALCULATION METHOD AND DEVICE FOR AC-DC INTERCONNECTED POWER SYSTEM, STORAGE MEDIUM AND TERMINAL

#41
20200025810
2020-01-23

Low-observability matrix completion

#42
20200011903
2020-01-09

Systems and methods for analyzing power quality events in an electrical system

#43
20200003811
2020-01-02

Method of determining mutual voltage sensitivity coefficients between a plurality of measuring nodes of an electric power network

#44
20190369693
2019-12-05

Package power zone for limiting power consumption even when individual consumers do not exceed individual limits

#45
20190353691
2019-11-21

ELECTRICITY SUBMETER

#46
20190293699
2019-09-26

Electric grid state estimation system and method based on boundary fusion

#47
20190285672
2019-09-19

System and method for estimating photovoltaic energy generation through linearly interpolated irradiance observations with the aid of a digital computer

#48
20190212374
2019-07-11

Method to determine three-phase load impedances driven by a power control device when no neutral reference is available in an alternative electrical network

#49
20190155271
2019-05-23

DETERMINING A CHANGE IN ASSET PERFORMANCE USING A DIGITAL TWIN

#50
20190103981
2019-04-04

PoE system providing measure of energy consumption

#51
20190049493
2019-02-14

AC electrical power measurements

#52
20190041437
2019-02-07

Method and system for measuring power loss in a power transformer

#53
20190041436
2019-02-07

Determining meter phase using interval voltage measurements

#54
20190004097
2019-01-03

General load flow calculation method for power systems with unified power flow controller

#55
20180335019
2018-11-22

Method for monitoring and assessing power performance changes of a wind turbine

#56
20180252753
2018-09-06

Distributed-generator power-generation-amount estimation apparatus and method

#57
20180224486
2018-08-09

VA metering in delta-wired electrical service

#58
20180164353
2018-06-14

PLATFORM FOR DYEING INDUSTRY COMPRISING FACTORY ENERGY MANAGEMENT SYSTEM LINKED WITH OPTIMIZED PRODUCTION MANAGEMENT SYSTEM

#59
20180100882
2018-04-12

System and method for submetering of a heating, ventilation, and/or air conditioning (HVAC) system

#60
20170365171
2017-12-21

RSSI based V2X communication plausability check

#61
20170302065
2017-10-19

ENERGY MONITORING SYSTEM

#62
20170227583
2017-08-10

Estimating photovoltaic energy through averaged irradiance observations with the aid of a digital computer

#63
20170161847
2017-06-08

POWER MANAGEMENT METHOD AND POWER MANAGEMENT DEVICE FOR A RESIDENTIAL COMPLEX COMPRISING ONE OR MORE RESIDENTIAL UNITS OR FOR AN URBAN DISTRICT

#64
20170109467
2017-04-20

BEHAVIOR PREDICTION DEVICE AND PROGRAM

#65
20170102417
2017-04-13

Device and method for measuring the power consumption, contactless device and method for measuring power supply status

#66
20170040887
2017-02-09

DC/AC converter apparatus comprising means for controlling the reactive power and power conversion and generation system comprising such DC/AC converter apparatus

#67
20170038417
2017-02-09

Vehicle information terminal and power generation information collection system

#68
20170003329
2017-01-05

Monitoring operating conditions of a transformer during major electromagnetic disturbances

#69
20160352142
2016-12-01

Systems, apparatus and methods for quantifying and identifying diversion of electrical energy

#70
20160349296
2016-12-01

Power system analysis support system, analysis support apparatus for power system, analysis support method for power system, and measuring device for power system

#71
20160282391
2016-09-29

System and method for ripple-free AC power determination

#72
20160266183
2016-09-15

Method and apparatus for detecting electronic device connected to smart plug

#73
20160204606
2016-07-14

Grid network gateway aggregation

#74
20160161538
2016-06-09

Method for testing dynamic model parameters of wind power plant

#75
20160094033
2016-03-31

SVC COMPENSATION STRATEGY OPTIMIZATION METHOD

#76
20160087475
2016-03-24

Control device of energy storage system

#77
20150355635
2015-12-10

Monitoring load operation

#78
20150343969
2015-12-03

VEHICLE POWER SUPPLY CONTROL DEVICE

#79
20150309094
2015-10-29

System and method for measuring active power in a load without a load voltage

#80
20150234015
2015-08-20

Apparatus and method for diagnosing battery cell defect

#81
20150168465
2015-06-18

METHOD AND APPARATUS FOR ELECTRIC POWER SYSTEM DISTRIBUTION STATE ESTIMATIONS

#82
20150153394
2015-06-04

Peak shaving using energy storage

#83
20150091492
2015-04-02

System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system

#84
20150081239
2015-03-19

Method, systems and/or device for adjusting expected received signal strength signature values

#85
20150051749
2015-02-19

Method and system for managing an electrical distribution system in a facility

#86
20150025702
2015-01-22

Energy management system

#87
20150019036
2015-01-15

Energy management server, energy management method, and program

#88
20140316596
2014-10-23

INFORMATION PROCESSING METHOD AND INFORMATION PROCESSING SYSTEM

#89
20140309954
2014-10-16

VA metering in delta-wired electrical service

#90
20140191747
2014-07-10

DYNAMIC POWER CONSUMPTION REAL-TIME DISPLAY DEVICE

#91
20140125314
2014-05-08

Apparatus and method for alternating current physical signals measurement and data acquisition

#92
20130127390
2013-05-23

System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system

#93
20130082683
2013-04-04

Power measurement device

#94
20120259566
2012-10-11

Device for measuring two phase power with single voltage input

#95
20120259565
2012-10-11

Alternating current power measuring apparatus

#96
20120089356
2012-04-12

Distribution system analysis using meter data

#97
20120059607
2012-03-08

Method and device for filtering electrical consumption curves and allocating consumption to classes of appliances

#98
20110241655
2011-10-06

Bidirectional 3 phase power meter for compensating reverse load flow and method for metering thereby

#99
20110153246
2011-06-23

Utility metering

#100
20110125428
2011-05-26

Method for wireless data transmission between a measurement module and a transmission unit

#101
20100179779
2010-07-15

Distribution system analysis using meter data

#102
20100109650
2010-05-06

Apparatus for electronically measuring or distributing electrical energy

#103
20100088049
2010-04-08

Apparatus and method for measuring active and reactive powers

#104
20100085037
2010-04-08

System and method for measuring reactive power

#105
20100052655
2010-03-04

Self contained kilowatt-hour meter integral to standard load center

#106
20090243591
2009-10-01

Power meter having complex quadrature output current and voltage filters

#107
20080238406
2008-10-02

Intelligent electronic device having improved analog output resolution

#108
20080097707
2008-04-24

VA metering in polyphase systems

#109
20080068006
2008-03-20

Apparatus for electronically measuring electrical energy

#110
20080068005
2008-03-20

Apparatus for electronically measuring or distributing electrical energy

#111
20080068004
2008-03-20

Electronic revenue meter with automatic service sensing

#112
20070115022
2007-05-24

Power supply having voltage blocking clamp

#113
20060212238
2006-09-21

Method of compressing values of a monitored electrical power signal

#114
20060142960
2006-06-29

Method of calculating effective power relating to capacitor, method of measuring effective power consumed by capacitor, capacitor selection method, calculation apparatus for calculating effective power relating to capacitor, and recording medium storing the calculation program therefor

#115
20050194962
2005-09-08

Electronic revenue meter with automatic service sensing

#116
20050162148
2005-07-28

Apparatus and method for monitoring power and current flow

#117
18410614
2024-06-11

Method and system for allocating optimal inertia in a power system

#118
18207508
2024-02-20

Online estimation of area-level inertia considering inter-area equivalent frequency dynamics

#119
14694785
2018-06-12

Digital monobit dithering circuit

#120
14056898
2017-05-09

System and method for estimating photovoltaic energy generation for use in photovoltaic fleet operation with the aid of a digital computer