ClassID:

202948

H01H33/666 - 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 Operating arrangements

Sub-classes:
Recent Application in this class:
#1
20260155324
2026-06-04

BASE MODULE FOR HIGH-VOLTAGE SWITCHING DEVICES HAVING VACUUM INTERRUPTERS, AND HIGH-VOLTAGE SWITCHING DEVICE HAVING THE BASE MODULE

#2
20260148916
2026-05-28

CIRCUIT BREAKER DEVICE

#3
20260148915
2026-05-28

SWITCHGEAR

#4
20260074129
2026-03-12

SWITCHING UNIT FOR ELECTRICAL APPLICATIONS

#5
20260024713
2026-01-22

Switching device for an electrical apparatus

#6
20250391621
2025-12-25

VACUUM CIRCUIT BREAKER

#7
20250364791
2025-11-27

VACUUM BOTTLE HOUSING MOLD

#8
20250343016
2025-11-06

LOAD BREAK DISCONNECT FOR GROUP OPERATED MULTI-PHASE SWITCHES

#9
20250336627
2025-10-30

VACUUM HIGH VOLTAGE LIVE TANK CIRCUIT BREAKER FREE OF FLUID

#10
20250293487
2025-09-18

AN EXPANDER KIT FOR INSTALLING SMALL FRAME CIRCUIT BREAKERS IN ELECTRICAL DISTRIBUTION DEVICES DESIGNED FOR LARGE FRAME CIRCUIT BREAKERS

#11
20250246881
2025-07-31

VACUUM BOTTLE HOUSING

#12
20250246383
2025-07-31

INTERRUPTER WITH INVERTED CONFIGURATION AND SELF-UNLATCHING MECHANISM

#13
20250232933
2025-07-17

SWITCHGEAR WITH MANUAL TRIP ASSEMBLY AND MECHANICAL INTERLOCK

#14
20250210288
2025-06-26

SPARKLESS FUSE

#15
20250182987
2025-06-05

SWITCHGEAR WITH OVERMOLDED DIELECTRIC MATERIAL

#16
20250149275
2025-05-08

SWITCH ARRANGEMENT AND METHOD FOR OPERATING A SWITCH ARRANGEMENT

#17
20250132111
2025-04-24

VACUUM CIRCUIT BREAKER

#18
20250118510
2025-04-10

MEDIUM-VOLTAGE VACUUM CIRCUIT BREAKER

#19
20250104944
2025-03-27

CIRCUIT BREAKER HAVING VACUUM INTERRUPTERS AND SINGLE-PHASE CONTROL WITH MAGNETIC ACTUATORS AND ASSOCIATED METHOD

#20
20250062090
2025-02-20

Fast-Acting Mechanical Switch and Its Operating Method

#21
20250055263
2025-02-13

Vacuum break switch mass

#22
20240347294
2024-10-17

VACUUM CIRCUIT BREAKER

#23
20240222944
2024-07-04

Vacuum break switch shock absorber

#24
20240153725
2024-05-09

SYSTEM AND METHOD FOR POINT ON WAVE CLOSING OF A VACUUM INTERRUPTER

#25
20240145193
2024-05-02

APPARATUSES AND METHODS FOR IMPROVED SWITCHGEAR SENSOR DATA COMMUNICATION

#26
20240096574
2024-03-21

POWER FUSE AND AIRCRAFT COMPRISING SUCH A POWER FUSE

#27
20240096573
2024-03-21

VACUUM CIRCUIT BREAKER

#28
20240071699
2024-02-29

DEVICE, SYSTEM, AND METHOD FOR HIGH VOLTAGE SWITCH

#29
20240013993
2024-01-11

Modular vacuum circuit interrupter

#30
20240006137
2024-01-04

Medium Voltage or High Voltage Circuit Breaker

#31
20230420202
2023-12-28

Medium Voltage or High Voltage Circuit Breaker

#32
20230411936
2023-12-21

Expander kit for installing small frame circuit breakers in electrical distribution devices designed for large frame circuit breakers

#33
20230402240
2023-12-14

CAPACITOR HARVESTER

#34
20230402239
2023-12-14

CAPACITOR HARVESTER

#35
20230386770
2023-11-30

SWITCH

#36
20230317389
2023-10-05

System for controlling a vacuum interrupter for a power diverter switch, a power diverter switch and an on-load tap changer

#37
20230298841
2023-09-21

Circuit breaker having main circuit unit cover

#38
20230290592
2023-09-14

Vacuum interrupter assembly, switchgear including vacuum interrupter assembly, and method of configuring vacuum interrupter assembly

#39
20230282432
2023-09-07

INLINE DISCONNECT FOR MULTIPHASE ELECTRIC UTILITY LINE APPLICATIONS

#40
20230268152
2023-08-24

Snap together assembly for vacuum interrupter drive rod

#41
20230268151
2023-08-24

Circuit breaker having vacuum interrupters and single-phase control with magnetic actuators and associated method

#42
20230260725
2023-08-17

Vacuum interrupter

#43
20230238201
2023-07-27

Vacuum interrupter and vacuum breaker

#44
20230230786
2023-07-20

System for controlling a vacuum interrupter for a power diverter switch, a power diverter switch and an on-load tap changer

#45
20230230785
2023-07-20

Load Break Switch

#46
20230207240
2023-06-29

SINGLE BOTTLE INTERRUPTER

#47
20230197379
2023-06-22

Vacuum interrupter

#48
20230197378
2023-06-22

Induction-controlled switch having a vacuum bulb for reducing vibrations

#49
20230178315
2023-06-08

VACUUM VALVE

#50
20230154708
2023-05-18

Switchgear and power converter

#51
20230154706
2023-05-18

Toroidal encapsulation for high voltage vacuum interrupters

#52
20230145798
2023-05-11

Vacuum circuit breaker

#53
20230118133
2023-04-20

Vacuum interrupter and vacuum breaker

#54
20230065103
2023-03-02

Plug interlock apparatus for vacuum circuit breaker

#55
20230025832
2023-01-26

Switching device for a medium voltage electrical circuit

#56
20230012203
2023-01-12

ROTARY DIAPHRAGM IN VACUUM INTERRUPTER SWITCH

#57
20220406541
2022-12-22

Breaking device for a medium voltage electrical circuit

#58
20220329019
2022-10-13

ELECTRICAL CONNECTOR FOR A MEDIUM-POWER OR HIGH-POWER ELECTRICAL DISTRIBUTION NETWORK

#59
20220317188
2022-10-06

Contact monitoring device for vacuum circuit breaker and vacuum circuit breaker having same

#60
20220310336
2022-09-29

Vacuum circuit breaker

#61
20220293369
2022-09-15

Switching device comprising two interrupter units connected in series

#62
20220293368
2022-09-15

Circuit breaker

#63
20220277911
2022-09-01

Control system for an electrical apparatus

#64
20220254586
2022-08-11

Switchgear

#65
20220246376
2022-08-04

Bypass switch

#66
20220238288
2022-07-28

Switchgear with manual trip assembly and mechanical interlock

#67
20220223361
2022-07-14

Medium voltage switching apparatus

#68
20220216022
2022-07-07

Switchgear with overmolded dielectric material

#69
20220199341
2022-06-23

Contact point monitoring module device for vacuum circuit breaker and vacuum circuit breaker comprising same

#70
20220189717
2022-06-16

Current interrupter system

#71
20220172915
2022-06-02

MEDIUM VOLTAGE VACUUM INTERRUPTER CONTACT WITH IMPROVED ARC BREAKING PERFORMANCE AND ASSOCIATED VACUUM INTERRUPTER

#72
20220148824
2022-05-12

Operating mechanism for opening and closing at least two contacts simultaneously

#73
20220139651
2022-05-05

Motion sensing device for vacuum circuit breaker and vacuum circuit breaker comprising same

#74
20220115196
2022-04-14

Medium voltage circuit breaker switching pole

#75
20220108855
2022-04-07

Voltage readings using high voltage resistor across vacuum interrupter

#76
20220005659
2022-01-06

Low-voltage circuit breaker

#77
20210407751
2021-12-30

Inline disconnect for multiphase electric utility line applications

#78
20210376579
2021-12-02

Earthing module

#79
20210319963
2021-10-14

Dielectric shield for a switching device

#80
20210313127
2021-10-07

Medium voltage switching pole

#81
20210304988
2021-09-30

Make contact system

#82
20210304987
2021-09-30

Single bottle interrupter

#83
20210241986
2021-08-05

Adjusting device and method for adjusting switching device mechanisms

#84
20210183601
2021-06-17

Switch assembly

#85
20210183598
2021-06-17

High-voltage power switch with closing resistor arrangement

#86
20210175032
2021-06-10

Switch assembly with energy harvesting

#87
20210134538
2021-05-06

Multiple hammer blow vacuum interrupter weld breaking

#88
20210118630
2021-04-22

Switch element for tap changer, and tap changer

#89
20210090831
2021-03-25

Vacuum circuit breaker

#90
20210090830
2021-03-25

Hybrid switching device and hybrid actuator incorporating same

#91
20210075201
2021-03-11

Gas-insulated switching device

#92
20210074495
2021-03-11

Shield element for a vacuum interrupter

#93
20210057176
2021-02-25

Vacuum interrupter

#94
20210043400
2021-02-11

Electromechanical actuator and high voltage (HV) switch

#95
20210043395
2021-02-11

Electrical switching device

#96
20200411261
2020-12-31

Variable-speed circuit breaker and switching method for same

#97
20200411260
2020-12-31

Distribution grounding switch to support distributed energy resources

#98
20200403395
2020-12-24

Medium voltage switching apparatus

#99
20200402751
2020-12-24

Disconnect switch assemblies with a shared actuator that concurrently applies motive forces in opposing directions and related circuit breakers and methods

#100
20200388445
2020-12-10

Contact press-on assembly

#101
20200365343
2020-11-19

Arrangement and method for driving a movable contact of a vacuum interrupter in a high-voltage circuit breaker

#102
20200335293
2020-10-22

Guiding pull ring

#103
20200328581
2020-10-15

Control rod with compensation element

#104
20200321174
2020-10-08

Method for operating the drive of a vacuum interrupter, and vacuum interrupter itself

#105
20200279709
2020-09-03

Disconnect switches with combined actuators and related circuit breakers and methods

#106
20200266015
2020-08-20

Assembly and method for damping contact bounce in high-voltage circuit breakers

#107
20200258704
2020-08-13

Thomson coil integrated moving contact in vacuum interrupter

#108
20200251294
2020-08-06

Manual close assist control mechanism

#109
20200244059
2020-07-30

Single-phase equipotential self-powered low-cost easy-to-install recloser

#110
20200243286
2020-07-30

Vacuum switching apparatus and drive mechanism therefor

#111
20200227222
2020-07-16

Current interrupter for high voltage switches

#112
20200219688
2020-07-09

Single bottle interrupter

#113
20200194191
2020-06-18

Circuit interrupters with non-contact sensor systems for evaluating erosion of electrical contacts and related methods

#114
20200176205
2020-06-04

System for actuating a vacuum bottle

#115
20200176204
2020-06-04

Mechanical latching system kit for a medium voltage contactor

#116
20200152408
2020-05-14

Magnetic assembly for generating blow-on contact force

#117
20200118776
2020-04-16

Reduced size fault interrupter

#118
20200075276
2020-03-05

Vacuum circuit breaker with improved configuration

#119
20200075275
2020-03-05

Vacuum circuit breaker

#120
20200066468
2020-02-27

Vacuum circuit interrupter with actuation having active damping

#121
20190371548
2019-12-05

Medium voltage switching apparatus

#122
20190362916
2019-11-28

Inverse current injection-type direct current blocking device and method using vacuum gap switch

#123
20190341208
2019-11-07

Arrangement and method for guiding a switch rod of a high-voltage circuit breaker

#124
20190304721
2019-10-03

Vacuum switching devices

#125
20190252140
2019-08-15

Medium voltage contactor

#126
20190237281
2019-08-01

Switching device arrangement

#127
20190198271
2019-06-27

Vacuum circuit interrupter with piezoelectric actuator and vacuum circuit breaker incorporating same

#128
20190148093
2019-05-16

Actuator for a medium voltage circuit breaker

#129
20190148088
2019-05-16

Coupling element for an electrical switching device having a pulse mass element

#130
20190144012
2019-05-16

Branching unit and vehicular system

#131
20190108960
2019-04-11

Ultrafast electromechanical disconnect switch having contact pressure adjustment

#132
20190108959
2019-04-11

Ultrafast single actuator electromechanical disconnect switch

#133
20190108956
2019-04-11

Vacuum circuit breaker, gas insulated switchgear and air insulated switchgear mounted with the vacuum circuit breaker

#134
20190108955
2019-04-11

Gas-insulated switchgear with sealed operating mechanisms

#135
20190096612
2019-03-28

Coupling element for an electrical switching device

#136
20190088434
2019-03-21

Ultrafast electromechanical disconnect switch having elliptical shell surrounded actuator

#137
20190088433
2019-03-21

Ultrafast electromechanical disconnect switch having contact pressure adjustment and switching chamber

#138
20190074148
2019-03-07

Electromagnetically moving device

#139
20190058318
2019-02-21

Current protection device with mutual reactor

#140
20190027328
2019-01-24

Gas-insulated vacuum load break switch

#141
20180350538
2018-12-06

Medium voltage pole assembly

#142
20180301279
2018-10-18

Intra-tank under-oil vacuum primary switches for medium voltage transformer applications

#143
20180294115
2018-10-11

Vacuum interrupter and driving method therefor

#144
20180286601
2018-10-04

Twin-roll blocking unit for a triggering mechanism for a switching device

#145
20180254159
2018-09-06

Intelligent integrated medium-voltage AC vacuum switchgear based on flexible switching-closing technology

#146
20180218861
2018-08-02

Switching device comprising a vacuum tube

#147
20180197705
2018-07-12

Control system for an electrical apparatus

#148
20180182579
2018-06-28

Vacuum interrupter

#149
20180174785
2018-06-21

Gas-insulated medium voltage switchgear with a circuit breaker pole part arrangement

#150
20180068815
2018-03-08

Multifunction switch for use with cleaning device and/or other powered devices

#151
20180047532
2018-02-15

Vacuum circuit breaker

#152
20180025869
2018-01-25

Vacuum circuit interrupter

#153
20180019083
2018-01-18

Medium or high voltage switch bushing

#154
20180005784
2018-01-04

VACUUM CIRCUIT BREAKER

#155
20170365426
2017-12-21

Coupling element for an electric switching device

#156
20170358411
2017-12-14

Fast switch device

#157
20170352501
2017-12-07

DEVICE FOR OPERATING A SWITCHING DEVICE

#158
20170338068
2017-11-23

Current interrupter for high voltage switches

#159
20170301491
2017-10-19

THREE-POSITION VACUUM SWITCH FOR REALIZING EXTERNAL GROUNDING OF LOAD SIDE BY USING CONNECTED BUSBAR

#160
20170294280
2017-10-12

ARRANGEMENT AND A METHOD FOR SWITCHING AN OPEN CONTACT GAP BY A SWITCHING DEVICE

#161
20170287661
2017-10-05

THREE-POSITION VACUUM SWITCH FOR REALIZING EXTERNAL GROUNDING OF LOAD SIDE BY USING BRIDGE SWITCH

#162
20170287660
2017-10-05

Vacuum circuit interrupter

#163
20170263401
2017-09-14

Embedded pole and method of assembling same

#164
20170263400
2017-09-14

Composite embedded-pole and operating principles

#165
20170256374
2017-09-07

High voltage circuit breaker, system, vacuum interrupter module and associated drive module

#166
20170250040
2017-08-31

Circuit closer and circuit closing system

#167
20170236663
2017-08-17

Bypass switch

#168
20170213674
2017-07-27

Circuit breaker comprising an insulating hollow tube

#169
20170194113
2017-07-06

Sensor for circuit breaker open and close failure prediction

#170
20170186573
2017-06-29

Manual charging apparatus for vacuum interrupter

#171
20170169973
2017-06-15

Medium voltage circuit breaker for the use in high pressure environments

#172
20170133181
2017-05-11

Avoiding incorrect orientations of a drive rod of a power switch

#173
20170084412
2017-03-23

High voltage puffer breaker and a circuit breaker unit comprising such a puffer breaker

#174
20170047186
2017-02-16

Component monitoring system with monitory latch assembly

#175
20170047181
2017-02-16

Failure prediction device and method for vacuum circuit breakers

#176
20170025776
2017-01-26

Connection apparatus usable in vacuum interrupter

#177
20170018381
2017-01-19

Component for electric power system, and contact assembly and open air arcing elimination method therefor

#178
20170004943
2017-01-05

ACTUATOR FOR A VACUUM SWITCH TUBE OF A SWITCHING ASSEMBLY OF A TAP CHANGER

#179
20160329182
2016-11-10

Ultrafast electromechanical disconnect switch

#180
20160322185
2016-11-03

Double-contact switch with vacuum switching chambers

#181
20160308335
2016-10-20

Vacuum circuit breaker

#182
20160300678
2016-10-13

Opening and closing device

#183
20160254110
2016-09-01

Electrical switch

#184
20160225557
2016-08-04

Switch

#185
20160211096
2016-07-21

Motorized vacuum circuit breaker assembly

#186
20160211088
2016-07-21

Bypass switch

#187
20160203929
2016-07-14

Bypass switch for HVDC transmission

#188
20160164209
2016-06-09

Connection apparatus usable in vacuum interrupter

#189
20160141126
2016-05-19

Electrical Contact for Vacuum Interrupter and Process for Producing Same

#190
20160126037
2016-05-05

Medium or high voltage switch bushing

#191
20160126035
2016-05-05

Hybrid cutoff member for an electric circuit

#192
20160099123
2016-04-07

Switchgear operating mechanism

#193
20160099118
2016-04-07

Electrical interruption apparatus with wear indicator

#194
20160012994
2016-01-14

Magnetic actuating device for a current switching device

#195
20150357136
2015-12-10

Modular vacuum interruption apparatus

#196
20150332880
2015-11-19

VACUUM SWITCHING DEVICES

#197
20150311005
2015-10-29

Circuit breakers with clock spring drives and/or multi-lobe drive cams and related actuators and methods

#198
20150303010
2015-10-22

A VACUUM INTERRUPTER AND A VACUUM CIRCUIT BREAKER HAVING THE SAME

#199
20150294809
2015-10-15

Switchgear operating mechanism

#200
20150294807
2015-10-15

Circuit interrupters with masses in contact spring assemblies

#201
20150248977
2015-09-03

Switching apparatus

#202
20150235784
2015-08-20

High voltage current interrupter and an actuator system for a high voltage current interrupter

#203
20150221465
2015-08-06

Embedded pole part with an isolating housing

#204
20150221457
2015-08-06

Assembled pole part with pole part frame

#205
20150206676
2015-07-23

Switch

#206
20150179374
2015-06-25

Safety shutter of vacuum circuit breaker

#207
20150170857
2015-06-18

ELECTROMAGNETIC ACTUATOR FOR A MEDIUM VOLTAGE VACUUM CIRCUIT BREAKER

#208
20150170856
2015-06-18

Single bottle interrupter

#209
20150114933
2015-04-30

PUSHROD ASSEMBLY FOR A MEDIUM VOLTAGE VACUUM CIRCUIT BREAKER

#210
20150091684
2015-04-02

On-load tap changer

#211
20150060248
2015-03-05

Ring main unit circuit breaker equipped with contact force controller

#212
20150034598
2015-02-05

STRUCTURE FOR PREVENTING ECCENTRICITY OF MOVABLE CONTACT IN VACCUM CIRCUIT BREAKER

#213
20140360983
2014-12-11

Stepping switch with vacuum switching tubes

#214
20140360853
2014-12-11

Switchgear and opening and closing method thereof

#215
20140284192
2014-09-25

Driving rod for medium voltage switching element gear

#216
20140224771
2014-08-14

Current interrupter for high voltage switches

#217
20140175058
2014-06-26

Circuit-breaker pole part with a flexible conductor for connecting a movable electrical contact

#218
20140144882
2014-05-29

Three phase vacuum interrupter switch for high voltage distribution systems

#219
20140124480
2014-05-08

Tank type vacuum circuit breaker

#220
20140076851
2014-03-20

Electromagnetic operating device

#221
20130299321
2013-11-14

Switchgear for a vacuum circuit breaker comprising locking means

#222
20130299320
2013-11-14

Electrical equipment comprising a mobile part having improved dynamics

#223
20130292358
2013-11-07

Three-phase, multi-way vacuum interrupter switchgear with internal ground switches

#224
20130284704
2013-10-31

Vacuum interrupter arrangement for a circuit breaker

#225
20130264312
2013-10-10

Method of manufacturing a push rod of a vacuum interrupter

#226
20130213937
2013-08-22

Gas insulated switchgear

#227
20130186231
2013-07-25

Pole operating device in a medium-voltage electric control apparatus

#228
20130161291
2013-06-27

Switching apparatus

#229
20130155640
2013-06-20

Gas insulated switchgear

#230
20130153384
2013-06-20

Non-homogeneous cam, and operating mechanism and electrical switching apparatus including the same

#231
20130153377
2013-06-20

Medium voltage circuit breaker arrangement operated by a transmission mechanism

#232
20130146565
2013-06-13

Power switchgear

#233
20130126480
2013-05-23

Circuit-breaker pole part and method for producing such a pole part

#234
20130126479
2013-05-23

Method for producing a circuit-breaker pole part

#235
20130075368
2013-03-28

Vacuum switching apparatus including first and second movable contact assemblies, and vacuum electrical switching apparatus including the same

#236
20130057083
2013-03-07

High-voltage switching device

#237
20130036965
2013-02-14

Recloser position indicator

#238
20130026020
2013-01-31

Power transmission device for vacuum interrupter and vacuum breaker having the same

#239
20130026016
2013-01-31

Pushrod assembly for circuit breaker

#240
20130008765
2013-01-10

Electrical device with a multi-chamber housing

#241
20120320487
2012-12-20

Medium voltage circuit breaker

#242
20120312667
2012-12-13

Power breaker

#243
20120311851
2012-12-13

Method of making a circuit interrupting device

#244
20120292163
2012-11-22

Medium voltage circuit breaker arrangement

#245
20120276755
2012-11-01

Grease for electrical contact and slide electricity structure, power switch, vacuum circuit breaker, vacuum insulated switchgear, and vacuum-insulated switchgear assembling method

#246
20120228267
2012-09-13

Power switchgear

#247
20120217223
2012-08-30

Interlock apparatus for vacuum circuit breaker

#248
20120212307
2012-08-23

Electromagnetically operated switching device

#249
20120193325
2012-08-02

Flexible seal for high voltage switch

#250
20120138574
2012-06-07

Tank type vacuum circuit breaker

#251
20120061353
2012-03-15

Gas-insulated vacuum circuit breaker

#252
20120049995
2012-03-01

Electrical switching apparatus

#253
20110290762
2011-12-01

Low-voltage circuit breaker with sealed interchangeable poles

#254
20110267734
2011-11-03

Switchgear operating apparatus and three-phase switchgear

#255
20110253675
2011-10-20

Three phase vacuum interrupter switch for high voltage distribution systems

#256
20110227252
2011-09-22

Method of making a circuit interrupting device

#257
20110163070
2011-07-07

Low-voltage, medium-voltage or high-voltage assembly

#258
20110155697
2011-06-30

Vacuum circuit breaker

#259
20110155696
2011-06-30

Vacuum circuit breaker

#260
20110155555
2011-06-30

Medium voltage circuit breaker

#261
20110155547
2011-06-30

Medium voltage circuit breaker

#262
20110081793
2011-04-07

Separable electrical connector with reduced risk of flashover

#263
20110058311
2011-03-10

Vacuum insulated switchgear

#264
20110057762
2011-03-10

SHORT-CIRCUITING APPARATUS WITH PYROTECHNIC INITIATION

#265
20110036812
2011-02-17

Vacuum circuit breaker

#266
20100326960
2010-12-30

Vacuum interrupter switch for power distribution systems

#267
20100320063
2010-12-23

Switchgear apparatus

#268
20100307893
2010-12-09

Insulating switching rod

#269
20100294629
2010-11-25

Move-out type interlock apparatus for circuit breaker

#270
20100288733
2010-11-18

Vacuum circuit breaker of tank type

#271
20100243611
2010-09-30

Vacuum insulating switch gear

#272
20100230261
2010-09-16

Circuit breaker with rebound preventer

#273
20100230257
2010-09-16

Withdrawable device of main circuit for vacuum circuit breaker

#274
20100219162
2010-09-02

Low-voltage, medium-voltage or high-voltage switchgear assembly having a short-circuiting system

#275
20100200379
2010-08-12

Quickly exchangeable switching device in fixed type medium voltage switchgear system

#276
20100155371
2010-06-24

Short-circuit device for medium and high-voltage switching devices

#277
20100142103
2010-06-10

Compact secondary substation comprising a fault protection system, a method for fault protection in a compact secondary substation, and a control unit for performing the method

#278
20100122967
2010-05-20

Vacuum switchgear

#279
20100118453
2010-05-13

Apparatus for protection of converter modules

#280
20100078302
2010-04-01

INSULATING SWITCHING ROD WITH A CONTACT PRESSURE ARRANGEMENT COMPRISING A PLURALITY OF HELICAL COMPRESSION SPRINGS WOUND IN OPPOSITE SENSES

#281
20100072045
2010-03-25

Switch Pole with a Mounting Frame Having Latching Means

#282
20100059480
2010-03-11

Vacuum circuit breaker

#283
20100038343
2010-02-18

Vacuum switch

#284
20090302006
2009-12-10

Mechanically interlocked transfer switch

#285
20090284334
2009-11-19

Electromagnetically operated switching device

#286
20090230090
2009-09-17

VACUUM SWITCH

#287
20090166333
2009-07-02

Circuit breaker having a plurality of breaker chambers arranged in parallel, with a common transmission and reduced length

#288
20090139956
2009-06-04

Dielectric Insulation Gasket for a Vacuum Bottle

#289
20090119899
2009-05-14

Method of assembling a vacuum switchgear assembly

#290
20090084762
2009-04-02

Adjustable switching mechanism for series coupled vaccum interrupters

#291
20090081896
2009-03-26

Separable electrical connector with reduced risk of flashover

#292
20090077793
2009-03-26

Method of making high voltage operating rod sensor

#293
20090071811
2009-03-19

Operating mechanism with adjustment of contact force

#294
20090052107
2009-02-26

Automatically configuring vacuum contactor

#295
20090045171
2009-02-19

Circuit breaker with high speed mechanically-interlocked grounding switch

#296
20090039989
2009-02-12

Electromagnetic actuator, in particular for a medium voltage switch

#297
20090032500
2009-02-05

Vacuum insulated switch and vacuum insulated switchgear

#298
20090020507
2009-01-22

Vacuum insulated switchgear

#299
20090020400
2009-01-22

Drive Arrangement with a Drive Device of an Electrical Switching Device and Method for Operating the Drive Arrangement

#300
20080302765
2008-12-11

Vacuum-Insulated Switching Device