H01H33/668 - CPC Classification Index

ClassID:

202955 ⎘

H01H33/668 - CPC Classification

Classification description:

High-tension or heavy-current switches with arc-extinguishing or arc-preventing means; Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid; Vacuum switches Means for obtaining or monitoring the vacuum

Sub-classes:

H01H2033/6686 » {by emitting and receiving reflected sound or ultrasound signals} 1
H01H33/6683 » {by gettering} 2

Recent Application in this class:

20260058079

2026-02-26

Vacuum Monitored Disconnect Switch

20260011514

2026-01-08

A VACUUM INTERRUPTER, A TRANSFORMER ARRANGEMENT AND A METHOD FOR MONITORING VACUUM INTERRUPTER

20250343016

2025-11-06

LOAD BREAK DISCONNECT FOR GROUP OPERATED MULTI-PHASE SWITCHES

20250174416

2025-05-29

PRESSURE PULSE DIAGNOSTICS OF AN OLTC

20250104945

2025-03-27

Method for detecting breakdown vacuum level of composite breakdown path

20240242907

2024-07-18

VACUUM CIRCUIT BREAKER

20240079192

2024-03-07

VACUUM CIRCUIT BREAKER

20230377819

2023-11-23

Vacuum degree detection device, monitoring system, and vacuum arc extinguishing chamber thereof

20230282432

2023-09-07

INLINE DISCONNECT FOR MULTIPHASE ELECTRIC UTILITY LINE APPLICATIONS

#10

20230178316

2023-06-08

Optical path system for detecting vacuum degree of vacuum switch and method thereof

#11

20230086911

2023-03-23

Method for monitoring vacuum interrupter's condition and an electric switching device

#12

20220415595

2022-12-29

Vacuum degree detection device with buried electrodes in vacuum interrupter and method thereof

#13

20220148826

2022-05-12

Pressure pulse diagnostics of an on-load tap changer

#14

20220108855

2022-04-07

Voltage readings using high voltage resistor across vacuum interrupter

#15

20220068579

2022-03-03

Pressure monitoring device and pressure monitoring method for vacuum valve

#16

20210407751

2021-12-30

Inline disconnect for multiphase electric utility line applications

#17

20200194200

2020-06-18

VACUUM INTERRUPTER LEAK DETECTION USING LOCAL CURRENT AND VOLTAGE MEASUREMENTS

#18

20170221659

2017-08-03

Device for monitoring the vacuum quality of a vacuum circuit breaker

#19

20170200572

2017-07-13

Vacuum-insulated switch enabling testing of the vacuum, switch assembly, and testing method

#20

20160349309

2016-12-01

Device for monitoring partial discharges in an electrical network

#21

20160163483

2016-06-09

METHOD TO DETERMINE THE PRESSURE INSIDE OF A VACUUM INTERRUPTER, AND VACUUM INTERRUPTER ITSELF

#22

20150325394

2015-11-12

Vacuum loss detection

#23

20150285863

2015-10-08

System and method to predict a usable life of a vacuum interrupter in the field

#24

20150270080

2015-09-24

Vacuum monitoring device

#25

20140166622

2014-06-19

Tank-type circuit breaker

#26

20120145674

2012-06-14

Device for detecting vacuum loss in a vacuum breaking apparatus and vacuum breaking apparatus comprising one such device

#27

20120140536

2012-06-07

Method for testing the performance of a vacuum switch of a traction converter

#28

20110062117

2011-03-17

Vacuum insulated switchgear

#29

20110046808

2011-02-24

CONTROLLER AND SYSTEM INCLUDING A CONTROLLER FOR DETECTING A FAILURE THEREOF

#30

20100226057

2010-09-09

ELECTRONIC VACUUM SWITCH WITH MAIN PARAMETERS QUICKLY SETTABLE ALSO DURING OPERATION OF THE PLANT UNDER CONTROL

#31

20100170874

2010-07-08

Vacuum insulated switchgear

#32

20100102034

2010-04-29

Apparatus for Monitoring Vacuum

#33

20090173160

2009-07-09

Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device

#34

20080308532

2008-12-18

Vacuum insulated switchgear

#35

20080308531

2008-12-18

Vacuum insulated switchgear

#36

20080252470

2008-10-16

Leak Detectors and Leak Detection Methods

#37

20080072678

2008-03-27

Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device

#38

20070089521

2007-04-26

Method and apparatus for the sonic detection of high pressure conditions in a vacuum switching device

#39

20060278010

2006-12-14

Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device

#40

20060237394

2006-10-26

Vacuum Switchgear

#41

20060196274

2006-09-07

Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device

#42

20060126257

2006-06-15

Vacuum-type electrical switching apparatus

#43

20050258342

2005-11-24

Method and apparatus for the detection of high pressure conditions in a vacuum switching device