ClassID:

217089

H02J9/066 - CPC Classification

Classification description:

Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems characterised by the use of dynamo-electric machines

Recent Application in this class:
#1
20250300489
2025-09-25

POWER AND BACKUP SYSTEM FOR LOW POWER OUTDOOR APPLICATIONS

#2
20250293541
2025-09-18

DATA CENTER BACKUP POWER SYSTEM

#3
20250293518
2025-09-18

Apparatus, System, and Method for Providing Backup Energy

#4
20250023384
2025-01-16

POWER SUPPLY SYSTEM AND METHOD FOR CONTROLLING POWER SUPPLY SYSTEM

#5
20240429737
2024-12-26

BACKUP POWER TRANSFER METER

#6
20240396390
2024-11-28

ALTERNATIVE POWER GENERATION (APG) SYSTEM

#7
20240364135
2024-10-31

AUTOMATIC SMART JUMP START BATTERY PACKS AND RESERVE POWER SUPPLY SYSTEMS INCLUDING THE SAME

#8
20240093583
2024-03-21

POWER SOURCES AND TRANSMISSION NETWORKS FOR AUXILIARY EQUIPMENT ONBOARD HYDRAULIC FRACTURING UNITS AND ASSOCIATED METHODS

#9
20230334598
2023-10-19

ON GRID/OFF GRID UTILITY KIOSK

#10
20230318353
2023-10-05

Reserve power supply system

#11
20230258063
2023-08-17

System and method for parallel power and blackout protection for electric powered hydraulic fracturing

#12
20230215667
2023-07-06

Automatic transfer switch with N-phase overlapping structure

#13
20230108847
2023-04-06

DRIVE APPARATUS

#14
20230107732
2023-04-06

Control device

#15
20230103983
2023-04-06

METHODS AND SYSTEMS FOR PROVIDING POWER

#16
20230041022
2023-02-09

Power supply control method for vehicle, vehicle, control unit and medium

#17
20230026299
2023-01-26

VEHICLE BATTERY WITH A SELF-CONTAINED BACKUP CAPABILITY

#18
20220285978
2022-09-08

AUTOMATIC TRANSFER PLUG

#19
20220271562
2022-08-25

Power source switching control system and power source switching control method

#20
20220173611
2022-06-02

Device for uninterruptible supply of power, comprising an energy storage means and a rotating electric machine

#21
20220158484
2022-05-19

Portable electrical generator

#22
20220131408
2022-04-28

Maintenance bypass assembly for uninterruptable power supply

#23
20210344220
2021-11-04

Reserve power supply system

#24
20210104911
2021-04-08

AUTOMATIC TRANSFER PLUG

#25
20210071573
2021-03-11

Electrical system having two rotary electric machines coupled to two gas turbine spools

#26
20210066958
2021-03-04

Power supply system with uninterruptible power supply function and load leveling function

#27
20210028646
2021-01-28

Methods and systems for providing power

#28
20200389045
2020-12-10

Maintenance bypass assembly for uninterruptable power supply

#29
20200287387
2020-09-10

Protection system for limiting an impact of disruptions of an external electrical network on a local network

#30
20200269814
2020-08-27

Wiper drive circuit

#31
20200052599
2020-02-13

Power supply delay to prevent oscillations for autonomous systems

#32
20200045628
2020-02-06

Cell site power generation

#33
20200036222
2020-01-30

Automatic transfer switch utilizing back-to-back mounted molded case circuit breakers or molded case switches to connect a load to a normal power source and a standby power source

#34
20190326779
2019-10-24

POWER MONITORING SYSTEM

#35
20190305543
2019-10-03

Digital LOP utilizing integrated module and motor control center system including same

#36
20190260229
2019-08-22

Systems and method for controlling a transfer switch

#37
20190256051
2019-08-22

Wiper drive circuit

#38
20190252914
2019-08-15

Power supply system and method

#39
20190252913
2019-08-15

Power supply system and method

#40
20190252912
2019-08-15

Power supply system and method

#41
20190237970
2019-08-01

System and method for intelligent static transfer switch with smart home power management

#42
20190229658
2019-07-25

Off-grid power generating apparatus

#43
20190229657
2019-07-25

Off-grid power generating apparatus for providing dual output voltage

#44
20190214817
2019-07-11

System for powering auxiliary loads of an energy storage system

#45
20190199125
2019-06-27

Automatic transfer switch maintenance bypass cabinet

#46
20190148975
2019-05-16

Power supply recovery current history-based limitation

#47
20190137960
2019-05-09

CALCULATING METHOD OF CONFIGURATION COST OF POWER SYSTEM

#48
20190115758
2019-04-18

Electrical power generation and distribution system with power recovery and regeneration

#49
20180316187
2018-11-01

Hierarchical type power control system

#50
20180241247
2018-08-23

Sensor for the position determination of a drive system

#51
20180198282
2018-07-12

Energy storage system

#52
20180175619
2018-06-21

Power control module using protection circuit for regulating backup voltage to power load during power fault

#53
20180166914
2018-06-14

Back-up power system for a component and method of assembling same

#54
20180159515
2018-06-07

Method and apparatus for control of pulsed power in hybrid energy storage module

#55
20180152047
2018-05-31

Uninterruptible Power Supply

#56
20180138741
2018-05-17

SYSTEM AND METHOD FOR LOCAL POWER GENERATION

#57
20180138740
2018-05-17

Reserve power system transfer switches for data center

#58
20180090986
2018-03-29

Load management and switching devices and methods

#59
20180076661
2018-03-15

Operation of a local alternating current network with a genset and a UPS

#60
20180076660
2018-03-15

Energy storage device and energy management method capable of increasing stability of energy supply

#61
20180024608
2018-01-25

Flexible power support redundancy busway system

#62
20170338691
2017-11-23

Segment protected parallel bus

#63
20170331372
2017-11-16

Power control apparatus, power supply system, and method for controlling power supply system

#64
20170331327
2017-11-16

Uninterruptible Power Supply

#65
20170264101
2017-09-14

DFIG-based UPS systems and methods of control

#66
20170256984
2017-09-07

Power supply system and method

#67
20170250570
2017-08-31

Redundant generator control

#68
20170237287
2017-08-17

Methods and systems for autonomous redundant control

#69
20170141610
2017-05-18

System and method for intelligent static transfer switch with smart home power management

#70
20170126056
2017-05-04

Uninterruptible electric power system

#71
20170098956
2017-04-06

Data center power network with multiple redundancies

#72
20170070087
2017-03-09

Automatic transfer switch maintenance bypass cabinet

#73
20170033599
2017-02-02

Segment protected parallel bus

#74
20160380479
2016-12-29

Hydraulically-driven extended-runtime flywheel uninterruptible power supply

#75
20160380478
2016-12-29

Electrical accumulator unit for providing auxiliary power to an electrical network

#76
20160369689
2016-12-22

Modular power plant system housed within a container transformer for connection to a local power distribution system

#77
20160359361
2016-12-08

Uninterruptible power supply and method of use

#78
20160336722
2016-11-17

Automatic switching interface box for generator

#79
20160334769
2016-11-17

Modular generator control and external power unit

#80
20160329713
2016-11-10

Apparatus and method for controlling a microgrid

#81
20160316430
2016-10-27

Cell site power generation

#82
20160315501
2016-10-27

Power distribution systems

#83
20160204654
2016-07-14

Power sources and systems utilizing a common ultra-capacitor and battery hybrid energy storage system for both uninterruptible power supply and generator start-up functions

#84
20160197600
2016-07-07

Method and apparatus for control of pulsed power in hybrid energy storage module

#85
20160190867
2016-06-30

SCALABLE HYBRID BACKUP ENERGY STORAGE SYSTEM WITH INTEGRATED CONTROL FOR EXTENDED OPERATIONAL LIFE

#86
20160118859
2016-04-28

Energy storage module comprising a DC link

#87
20160105022
2016-04-14

System and method for parallel power and blackout protection for electric powered hydraulic fracturing

#88
20160087435
2016-03-24

HVAC home generator

#89
20160065003
2016-03-03

POWER SYSTEM AND METHOD

#90
20150349356
2015-12-03

Hybrid emergency power unit system

#91
20150333570
2015-11-19

Uninterruptible power supply system

#92
20150331467
2015-11-19

Flexible power support redundancy busway system

#93
20150311749
2015-10-29

Redundant generator control

#94
20150229162
2015-08-13

Power system for providing an uninterruptible power supply to an external load

#95
20150222147
2015-08-06

Systems and methods for uninterruptible power supplies with bidirectional power converters

#96
20150214784
2015-07-30

Systems and methods for uninterruptible power supplies with bidirectional power converters

#97
20150207326
2015-07-23

Paralleling module for a generator system

#98
20150171662
2015-06-18

Active engine cool down time delay for automatic transfer switch controllers

#99
20150162814
2015-06-11

Self-recharging electric generator system

#100
20150130280
2015-05-14

Variable neutral impedance for multi-source system

#101
20150096171
2015-04-09

METHOD OF INSTALLING GENERATOR WITH AUTOMATIC TRANSFER SWITCH

#102
20150008740
2015-01-08

POWER MONITORING SYSTEM

#103
20140375133
2014-12-25

Segment protected parallel bus

#104
20140339893
2014-11-20

Life degradation mitigation for transient response energy storage

#105
20140244056
2014-08-28

Installation for producing electrical energy provided with means of energy storage and control method of such an installation

#106
20140220957
2014-08-07

Cell site power generation

#107
20140203649
2014-07-24

Method and Apparatus for Integrating a Secondary Power Source into a Power Generation Plant

#108
20140042809
2014-02-13

Paralelling of two transfer switches

#109
20130187462
2013-07-25

ACTIVE LOAD MANAGEMENT SYSTEM

#110
20130127164
2013-05-23

Electricity generating installation provided with means for storage of energy and control process for an installation of this type

#111
20130099720
2013-04-25

Integrated power system control method and related apparatus with energy storage element

#112
20130099576
2013-04-25

Integrated power system control method and related apparatus with energy storage element

#113
20130062943
2013-03-14

Load shedding circuit for RAM air turbines

#114
20130049476
2013-02-28

Active transfer time delay for automatic transfer switch

#115
20120318914
2012-12-20

Aircraft power systems and methods

#116
20120201066
2012-08-09

DUAL SWITCHING FREQUENCY HYBRID POWER CONVERTER

#117
20120198960
2012-08-09

HIGH ENERGY DENSITY FLYWHEEL

#118
20120193988
2012-08-02

Hybrid inverter generator

#119
20120187922
2012-07-26

ENERGY STORAGE SYSTEM AND METHOD

#120
20120181872
2012-07-19

Paralleling of two transfer switches

#121
20120176074
2012-07-12

SYSTEM FOR DECOUPLING A ROTOR FROM A STATOR OF A PERMANENT MAGNET MOTOR AND FLYWHEEL STORAGE SYSTEM USING THE SAME

#122
20120112706
2012-05-10

Accumulator control device and method and system for auxiliary electrical power supply

#123
20120068531
2012-03-22

Power Supply System

#124
20110101923
2011-05-05

Ceiling fan motor with generator winding

#125
20100171366
2010-07-08

Transient energy systems and methods for use of the same

#126
20100009724
2010-01-14

Cell site power generation

#127
20090315336
2009-12-24

Renewable energy generation system

#128
20090240377
2009-09-24

Power monitoring system

#129
20090230774
2009-09-17

Extended controller keep alive system and method

#130
20090200868
2009-08-13

UNINTERRUPTIBLE POWER SUPPLY WITH RECTIFIER FAST WALK IN

#131
20090174270
2009-07-09

Device for safeguarding an uninterruptible power supply of a magnet bearing in the event of failure of an electrical supply voltage

#132
20090152951
2009-06-18

Electric system for providing uninterruptible power

#133
20090091190
2009-04-09

Batteryless starter for UPS with sensor, motor generator, rectifier, and transformer

#134
20090058183
2009-03-05

Power source for aircraft engine controller systems

#135
20090021079
2009-01-22

Power systems and methods using an uniterruptible power supply to transition to generator-powered operation

#136
20080309166
2008-12-18

Method of controlling a plurality of UPS units in an on-line UPS system and on-line UPS system having a plurality of UPS units

#137
20080103993
2008-05-01

Method for providing energy to a building using utility-compatible distributed generation equipment

#138
20080100248
2008-05-01

Apparatus and method for controlling a transfer switch mechanism

#139
20080080104
2008-04-03

Method and apparatus for parallel engine generators

#140
20080061629
2008-03-13

Method of providing generator set standby power

#141
20080047391
2008-02-28

EFFICIENT AUXILIARY POWER SUPPLY

#142
20080034256
2008-02-07

Iso-parallel UPS system configuration

#143
20070182274
2007-08-09

Apparatus for generating sine waves of electromotive force, rotary switch using the apparatus, and generators using the rotary switch

#144
20070114795
2007-05-24

FLYWHEEL SYSTEM WITH SYNCHRONOUS RELUCTANCE AND PERMANENT MAGNET GENERATORS

#145
20070052294
2007-03-08

Apparatus for providing high quality power

#146
20060270280
2006-11-30

Electric power system and method of operating the same

#147
20060202559
2006-09-14

Power unit

#148
20060157987
2006-07-20

Fuel saving engine driven aircraft ground power device and method of use

#149
20060138868
2006-06-29

Power transfer switch assembly

#150
20060125436
2006-06-15

Power supply circuit of a high speed electric motor

#151
20060066104
2006-03-30

Methods and apparatus for ride-through operation of a complementary device to a transient power source

#152
20060061334
2006-03-23

Apparatus and method for transient and uninterruptible power

#153
20060038453
2006-02-23

Flywheel system with synchronous reluctance and permanent magnet generators

#154
20060006654
2006-01-12

Small multi-functional butane gas-powered portable electric generator

#155
20050273206
2005-12-08

No-break-power-transfer control system for variable frequency electrical power systems

#156
20050200205
2005-09-15

On-site power generation system with redundant uninterruptible power supply

#157
20050190512
2005-09-01

Electric power system and method of operating the same

#158
20050184589
2005-08-25

Method of supplying electric power from shore to ship and system thereof

#159
20050062289
2005-03-24

Heat/electric power supply system having power storage unit

#160
18892210
2025-09-23

Elevator backup power system and method

#161
16403182
2022-06-07

Systems and methods for self-replenishing electrical power and device

#162
16049105
2020-06-09

Data center power network with multiple redundancies

#163
14535859
2016-08-16

Automatic switching interface box for generator

#164
14202847
2018-01-30

Multi-circuit switching device