ClassID:

171650

G01R29/20 - CPC Classification

Classification description:

Arrangements for measuring or indicating electric quantities not covered by groups  -  Measuring number of turns; Measuring transformation ratio or coupling factor of windings

Recent Application in this class:
#1
20250125088
2025-04-17

Transformer Apparatus

#2
20240418760
2024-12-19

TRANSFORMER TURNS NUMBER TESTING CIRCUIT

#3
20240062952
2024-02-22

Transformer apparatus

#4
20230023763
2023-01-26

Checking apparatus for checking a number of start cycles of a detection device of a motor vehicle, and method

#5
20220107366
2022-04-07

Optical monitoring to detect contamination of power grid components

#6
20220084742
2022-03-17

Transformer apparatus

#7
20210123964
2021-04-29

Optical monitoring to detect contamination of power grid components

#8
20200217881
2020-07-09

Polyphase inductive filter

#9
20190227108
2019-07-25

System and method for measuring turns ratio of a transformer

#10
20190041437
2019-02-07

Method and system for measuring power loss in a power transformer

#11
20180372787
2018-12-27

Mobile transformer test device and method for testing a power transformer

#12
20180224491
2018-08-09

System and method for tuning transformers

#13
20180024180
2018-01-25

Device and method for determining a parameter of a transformer

#14
20180011131
2018-01-11

Concurrent transformer test system and method

#15
20170207670
2017-07-20

Stator used in resolvers, and resolver including same

#16
20150377943
2015-12-31

Concurrent transformer test system and method

#17
20150279553
2015-10-01

System and method for tuning transformers

#18
20140118015
2014-05-01

Concurrent transformer test system and method

#19
20130282312
2013-10-24

Method and apparatus for transformer diagnosis

#20
20120169369
2012-07-05

Apparatus and method for testing number of turns on coil

#21
20120158325
2012-06-21

Method and system for monitoring transformer health

#22
20120139555
2012-06-07

Instrument transformer test equipment and method