Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232)
07/1995
07/20/1995WO1995019657A1 Electrostatic discharge circuit for high speed, high voltage circuitry
07/11/1995US5432667 Neutral-to-ground fault sensing circuit
07/11/1995US5432666 Self-restoring fault current limiter utilizing high temperature superconductor components
07/06/1995WO1995018483A1 Device for limiting overvoltages arriving at an obejct to be protected via an electric high-voltage transmission line
07/06/1995CA2155939A1 Device for limiting overvoltages arriving at an obejct to be protected via an electric high-voltage transmission line
07/05/1995EP0661790A2 Three phase throttle current technique
07/05/1995EP0661643A1 Circuit for controlling current in an adapter card
07/04/1995US5430311 Constant-voltage diode for over-voltage protection
07/04/1995US5428967 Electric car air-conditioning apparatus
07/04/1995CA2023283C Emergency elevator power supply with component mode switching and frequency control
06/1995
06/28/1995EP0660484A2 Electronic contactor with emergency shut-down
06/28/1995EP0660426A1 Current limiter
06/28/1995EP0660416A1 Semiconductor device with reduced high voltage termination area and high breakdown voltage
06/28/1995CN2202369Y Automatic following and compensating petersen coil
06/28/1995CA2139012A1 Current limiter
06/27/1995US5428494 Power line protector, monitor and management system
06/14/1995EP0657706A1 Control system for an electrically operated valve
06/14/1995EP0657062A1 Changeable high-current resistor and its use as a protective component.
06/13/1995US5424627 Modular thyristor controlled series capacitor control system
06/08/1995DE4402023A1 Overvoltage protection device for electrified rail track
06/08/1995DE4402022A1 Overvoltage protection device for electrified railway
06/08/1995CA2137392A1 Control system for an electrically operated valve
06/06/1995US5422779 Packaged solid-state surge protector
06/06/1995US5422777 Low capacitance protection circuit for telephone equipment
05/1995
05/31/1995CN2199611Y Thunder preventing socket
05/31/1995CN2199581Y Combined over-voltage protector and power thunder preventing apparatus with it
05/30/1995US5420780 Apparatus for limiting inrush current
05/26/1995WO1995014322A1 Method for the resonance matching of petersen coils
05/24/1995CN1102907A A drive circuit of an electromagnetic device
05/24/1995CN1102904A Over voltage protecting discharger
05/23/1995US5418450 Coupling circuit for a measuring instrument
05/18/1995WO1995013621A1 Short circuit protected splice connector
05/18/1995CA2174862A1 Short circuit protected splice connector
05/17/1995EP0653841A1 Power switch with inrush current control
05/17/1995EP0429489B1 Assemblies of ptc circuit protection devices
05/16/1995US5416663 Arrangement for protecting telecommunications equipment from voltage transients
05/16/1995US5416662 Chip-type surge absorber
05/11/1995WO1995012910A1 Wiring structure for reducing transient impedance
05/11/1995CA2175475A1 Wiring structure for reducing transient impedance
05/10/1995EP0651921A1 Current limiters in power utility applications
05/10/1995CN2196812Y Non-whole-phase large-slip asynchronous-running overvoltage protection device for generator
05/09/1995US5414587 Surge suppression device
05/09/1995US5414586 Superconducting current limiting device
05/09/1995US5414403 Current-limiting component
05/03/1995EP0651497A2 Pulse width modulated power supply
05/03/1995EP0651491A1 Surge arrester
05/03/1995EP0651490A1 Overvoltage protection circuit
05/03/1995EP0510021B1 Overvoltage protection for series capacitor equipment
05/02/1995US5412526 Surge arrester circuit and housing therefor
04/1995
04/26/1995EP0649585A1 Switching arrangement for a communications channel
04/26/1995EP0649584A1 Remotely actuated switch and protection circuit
04/26/1995EP0649563A1 Gas tube vent-safe device
04/25/1995US5408842 Air-conditioning apparatus for electric vehicle
04/20/1995WO1995010932A1 Magazine arrangement
04/13/1995WO1995009981A1 Soft-start pump control system
04/12/1995EP0648003A1 Circuit arrangement
04/11/1995US5406437 Zero phase sequence current filter with adjustable impedance
03/1995
03/30/1995WO1995008862A1 Method and switching arrangement for starting a power supply
03/30/1995DE4333156A1 Circuit arrangement for connecting an electronic assembly to an operating voltage
03/29/1995EP0645865A2 Surge protection device and system
03/28/1995CA1334990C Modular electrical assemblies with pressure relief
03/23/1995WO1995005696A3 Protection circuit for electronic systems in general and for an electronic ballast operating discharge lamps in particular
03/21/1995US5400238 Three phase AC power system
03/21/1995US5400202 Electrostatic discharge protection circuit for integrated circuits
03/16/1995WO1995007571A1 A.c. controller
03/16/1995WO1995007570A1 Current limiting device
03/16/1995WO1995007548A1 Current limiting device
03/16/1995CA2171187A1 Ac power controller
03/16/1995CA2171186A1 Current limiter
03/15/1995CN2192104Y Electric power line high-frenquency current blocking device
03/14/1995US5398152 Overvoltage protector
03/14/1995US5398150 Coordinated electric surge suppressor with means for suppressing oscillatory transient overvoltages
03/14/1995US5397999 Evaluation apparatus for power supply system
03/14/1995US5397914 Power transistor device including power transistors in darlington connection and zener diode which is coupled between collector and base of power transistors and which is formed in polysilicon film
03/08/1995EP0642200A1 Safety unit for an electric 3-phase circuit
03/08/1995EP0642199A1 Protection circuit for a circuit with capacitors
03/08/1995EP0642141A1 Surge arrester
03/07/1995US5396393 Pumping station
03/07/1995CA2130303A1 Surge arrester
03/02/1995WO1995006352A1 Use of ptc devices in wiring harnesses
03/02/1995WO1995006350A1 Thermal shutdown for power converters
03/02/1995DE4427032C1 Circuit arrangement with a remotely fed DC-DC converter
03/02/1995CA2170048A1 Use of ptc devices in wiring harnesses
03/01/1995EP0640995A1 Electrical resistor and application of this resistor in a current limiter
02/1995
02/26/1995CA2130622A1 Electrical resistance element and use of this resistance element in a current limiter
02/23/1995WO1995005696A2 Protection circuit for electronic systems in general and for an electronic ballast operating discharge lamps in particular
02/22/1995EP0639284A1 Low loss recirculation apparatus
02/22/1995CN1099194A Single phase earthing protection method and device for small current system
02/21/1995US5392188 Power surge transient voltage protection and filtering circuit having current controlling characteristics
02/21/1995US5391948 Surge-resistant protection circuit for vehicle
02/21/1995CA2104568A1 Thermal shutdown for power converters
02/15/1995EP0638978A1 Power supply device
02/14/1995US5390069 Short circuit limit circuit with temperature-dependent current limit
02/14/1995US5390064 Current limiters in power utility applications
02/09/1995DE4326596A1 Protective circuit arrangement for electronic subscriber line interface circuits
02/08/1995EP0423368B1 Electronic part with safe-guard function
02/08/1995CN1098566A An earth leakage unit
02/07/1995US5388022 Auto reset circuit breaker
02/07/1995US5388021 Voltage surge suppression power circuits
02/07/1995US5387890 Superconductive coil assembly particularly for a current limiter, and a current limiter including such a coil assembly
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