202923 ⎘
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
Sub-classes:DROPOUT RECLOSER
#2SYSTEM AND METHOD FOR OPERATING AN ELECTRICAL SWITCH
#3System and method for operating an electrical switch
#4DROPOUT RECLOSER
#5Switch for an on-load tap changer and load transfer switch for an on-load tap changer
#6Dropout recloser
#7Switch for MV or HV traction line test device
#8Transformer for underground radial loop network
#9Method for restoring power in an underground radial loop network
#10Loop restoration switching device assembly including multiple switches with common control
#11Loop restoration switching device
#12Triggered vacuum gap that controllably sustains a vacuum arc through current zeros
#13UNDERGROUND RADIAL LOOP RESTORATION DEVICE AND METHOD
#14System and method for operating an electrical switch
#15Hybrid circuit breaker assembly
#16Valve
#17Switching device for conducting and interrupting electrical currents
#18Series compensator and control method
#19Disconnect switches with combined actuators and related circuit breakers and methods
#20Method for monitoring circuit breaker and apparatus and internet of things using the same
#21Dropout recloser
#22Series vacuum interrupters with grading capacitors integrated in a molded switch housing
#23Method for manufacturing electrode material
#24DC vacuum interrupter with multi-polar transverse permanent magnetic structure
#25Ceramic insulator
#26Branching unit and vehicular system
#27DIRECT CURRENT CIRCUIT BREAKER
#28Direct-current interruption device
#29Electric power distribution switchgear and method of breaking an electric power current
#30Pneumatically operable current protection device for a fault current limiter
#31Drive device for vacuum circuit breaker chassis
#32Power system and method of forming the same
#33Motorized high voltage in-line disconnect switch with communication system controls
#34Interlock device for preventing close during insertion or withdraw on circuit breaker in switch board
#35Medium voltage switchgear enclosure
#36Medium voltage switchgear enclosure
#37Advanced cooling system for electrical equipment
#38Vacuum circuit breaker
#39High voltage DC circuit breaker
#40System and method to predict a usable life of a vacuum interrupter in the field
#41Direct-current circuit breaker
#42Tap changer with an improved monitoring system
#43Zero-current pulse with constant current gradient for interrupting a direct current
#44Fuse case and case cover of vacuum contactor
#45Vacuum switching apparatus, and contact assembly and method of securing an electrical contact to an electrode therefor
#46Vacuum-insulated switch enabling testing of the vacuum, switch assembly, and testing method
#47Electrical switching device having parallel switching paths
#48Commutating circuit
#49Circuit breaker for hierarchically controlling short-circuit current and trips
#50Switching device and switch-off method for operating a switching device
#51Flexible magnetic field coil for measuring ionic quantity
#52Complex electrically operated ground and test device using vacuum circuit interrupters and methods of operating the same
#53Single-phase-to-earth fault processing device and method for neutral non-effectively grounded distribution network
#54Mechanical wear, wipe and stroke measurement system for circuit breakers
#55Switching apparatus and method for varying an impedance of a phase line of a segment of an electrical power line
#56Withdrawable interlock device of vacuum circuit breaker
#57Electrical switching apparatus including an adjustable damper assembly
#58Mechanical wear, wipe and stroke measurement system for circuit breakers
#59Contact wear detection by spectral analysis shift
#60Interlock apparatus of vacuum circuit breaker
#61Fast switch
#62Multiphase medium voltage vacuum contactor
#63Electromagnetic test device to predict a usable life of a vacuum interrupter in the field
#64Method to predict a usable life of a vacuum interrupter in the field
#65SWITCHGEAR
#66Circuit breaker with low-clearance connections
#67Dropout recloser
#68CIRCUIT BREAKER APPARATUS
#69Circuit breaker with compactable contact structure
#70High current vacuum interrupter with sectional electrode and multi heat pipes
#71Lockout device for switchgear
#72Circuit breaker unit
#73Tap changer with an improved monitoring system
#74Tank type vacuum circuit breaker
#75Circuit breaker
#76Vacuum switch assemblies
#77Flexible magnetic field coil for measuring ionic quantity
#78Triggered arc flash arrester and switchgear system including the same
#79Method of determining end-of-life of a fault interrupting device
#80Method for testing the performance of a vacuum switch of a traction converter
#81Arcing fault and arc flash protection system having a high-speed switch
#82Vacuum switch tube
#83Switching device with a vacuum interrupter chamber
#84Vacuum insulated switch-gear and its height adjusting method
#85Fault interrupting and reclosing device
#86Low-voltage circuit breaker with interchangeable poles
#87Dielectric Housing Having a Ventilation Shaft
#88Method and Apparatus for Using Momentary Switches in Pulsed Power Applications
#89Vacuum insulated switchgear
#90Vacuum insulated switchgear
#91Electromagnetic test device to predict a usable life of a vacuum interrupter in the field
#92Method to predict a usable life of a vacuum interrupter in the field