ClassID:

201732

H01F29/025 - CPC Classification

Classification description:

Variable transformers or inductances not covered by group with tappings on coil or winding; with provision for rearrangement or interconnection of windings Constructional details of transformers or reactors with tapping on coil or windings

Recent Application in this class:
#1
20260038736
2026-02-05

ELECTRICAL OPERATING MEANS COMPRISING A TAP CHANGER

#2
20260031271
2026-01-29

ISOLATION TRANSFORMER WITH AUTOVOLTAGE REGULATION

#3
20250166886
2025-05-22

A TAP CHANGER ARRANGEMENT AND A TRANSFORMER ARRANGEMENT COMPRISING THE TAP CHANGER ARRANGEMENT

#4
20250132088
2025-04-24

TUNABLE INDUCTOR AND METHODS TO REALIZE TUNABLE INDUCTOR

#5
20250111990
2025-04-03

HIGH-VOLTAGE WINDING AND METHOD FOR PREPARING HIGH-VOLTAGE WINDING

#6
20240428988
2024-12-26

TRANSFORMER FOR CONTROLLING INDEPENDENT ACTIVE AND REACTIVE POWER FLOWS IN A TRANSMISSION LINE

#7
20240379285
2024-11-14

NOVEL HIGH EFFICIENCY CENTER TAPPED TRANSFORMER STRUCTURE

#8
20240296988
2024-09-05

TRANSFORMER ASSEMBLY

#9
20240062969
2024-02-22

SWITCH UNIT FOR A STEP TRANSFORMER, AND STEP TRANSFORMER HAVING A SWITCH UNIT

#10
20240047132
2024-02-08

Micro-Stepping Cascading AC Voltage Regulator

#11
20240029965
2024-01-25

ON-LOAD TAP CHANGER AND TAP-CHANGING TRANSFORMER HAVING AN ON-LOAD TAP CHANGER

#12
20230402227
2023-12-14

FULL RANGE BOOSTING DEVICE FOR ACCUMULATOR OF ON-LOAD TAP CHANGER, ACCUMULATOR, AND ON-LOAD TAP CHANGER

#13
20230290567
2023-09-14

VARIABLE-IMPEDANCE ELECTRIC TRANSFORMER

#14
20230260695
2023-08-17

A TAP CHANGER AND A TRANSFORMER ARRANGEMENT COMPRISING THE TAP CHANGER

#15
20230197335
2023-06-22

Assembly for automatic tap adjustment of a power transformer using load tap changer and a method and support assembly for mounting the same

#16
20230170126
2023-06-01

TRANSFORMER

#17
20230131007
2023-04-27

Three-phase multi-tap balancing distribution transformer

#18
20230025613
2023-01-26

Transformer assembly for electric grids and a related control method

#19
20230020854
2023-01-19

POWER ELECTRONICS ON-LOAD TAP CHANGER WITH A REDUCED NUMBER OF TAPS

#20
20230019444
2023-01-19

DOWNHOLE ENERGY HARVESTING

#21
20220392717
2022-12-08

ON-LOAD TAP CHANGER AND TAP-CHANGING TRANSFORMER HAVING AN ON-LOAD TAP CHANGER

#22
20220351897
2022-11-03

ELECTROMAGNETIC INDUCTION DEVICE WITH ON-LOAD TAP CHANGER

#23
20220216004
2022-07-07

110 kV Three-phase Dry-type Transformer and Assembly Method Therefor

#24
20210327634
2021-10-21

Techniques for a coupled inductor circuit

#25
20210151235
2021-05-20

Flexible transformer system

#26
20210057147
2021-02-25

Molded tap changer assemblies and methods for dry-type transformers

#27
20210013719
2021-01-14

ENERGY STORAGE SYSTEM AND METHOD FOR CONTROLLING AN ENERGY STORAGE SYSTEM

#28
20200358352
2020-11-12

Switched-capacitor converter with multi-tapped autotransformer

#29
20200312539
2020-10-01

Tunable transformer

#30
20200203066
2020-06-25

Assembly for connection to a high-voltage system with adjustable impedance

#31
20200161046
2020-05-21

TRANSFORMERS AND CERTAIN A-C MOTORS AND GENERATORS WITH DYNAMIC CONTROL

#32
20190353011
2019-11-21

Downhole energy harvesting

#33
20190267175
2019-08-29

VDT with high permeability shield

#34
20190189342
2019-06-20

VARIABLE INDUCTOR AND INTEGRATED CIRCUIT USING THE VARIABLE INDUCTOR

#35
20190088410
2019-03-21

Transformer system with dynamic control

#36
20190035544
2019-01-31

Inductor device

#37
20180363639
2018-12-20

Electronic systems for controlling submersible pumps

#38
20180330862
2018-11-15

Transformer system

#39
20180173257
2018-06-21

Voltage regulator system and method of use

#40
20180173256
2018-06-21

Voltage regulator system and method of use

#41
20170294846
2017-10-12

Voltage regulation for multi-phase power systems

#42
20170271098
2017-09-21

Switching arrangement for a control transformer, in particular polarity switching means

#43
20170207022
2017-07-20

Integrated device package comprising a tunable inductor

#44
20170018376
2017-01-19

Dry transformer load switch

#45
20160351352
2016-12-01

Pull-out switch assembly with replaceable switch module

#46
20160329168
2016-11-10

On-load tap changer according to the reactor switching principle

#47
20160329149
2016-11-10

VARIABLE INDUCTOR AND VARIABLE INDUCTOR MODULE

#48
20160306904
2016-10-20

Method and system for obtaining relation between winding state and leakage reactance parameter of transformer

#49
20150348702
2015-12-03

Parameter-variable device, variable inductor and device having the variable inductor

#50
20150109085
2015-04-23

Transformer

#51
20140218151
2014-08-07

Dry-type transformer

#52
20140160820
2014-06-12

Electrical Current Transformer for Power Distribution Line Sensors

#53
20140118101
2014-05-01

Transformer provided with a taps panel, an electric-insulation method for a taps panel of a dry distribution transformer, and a taps panel for a dry distribution transformer

#54
20130043966
2013-02-21

TRANSFORMER TAP PROJECTION AND COVER

#55
20110267165
2011-11-03

INDUCTOR ASSEMBLY FOR A MAGNETIC RESONANCE IMAGING SYSTEM

#56
20080196920
2008-08-21

Expansion Vessel for Stepping Switches

#57
20080136573
2008-06-12

Multi-point connection module for a transformer coil, and a transformer comprising such a connection module

#58
20070257656
2007-11-08

Method and article of manufacturing for designing a transformer

#59
20070171021
2007-07-26

Transformer winding and production method thereof

#60
20060187574
2006-08-24

Integral transformer junction module

#61
20060103366
2006-05-18

Method and article of manufacture for designing a transformer

#62
20050212631
2005-09-29

Electromechanical device for selecting coil voltage and locking the coil in place

#63
20050200440
2005-09-15

Method for selecting coil voltage and locking the coil in place

#64
20050068145
2005-03-31

Slider for selecting coil voltage and locking the coil in place

#65
20050068132
2005-03-31

System and method for connecting a removable coil to fixed coil terminals

#66
20050013065
2005-01-20

Integral transformer junction module

#67
16397275
2020-10-13

Switched-capacitor converter with multi-tapped autotransformer