Patents
Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031)
06/1992
06/25/1992DE4041672A1 Monitoring unit for DC circuit for photovoltaic prodn. plants - which with line interference occuring within monitored stretch, current flow through monitored line section is interrupted using two monitoring lines
06/24/1992CN2108370U Integral low voltage electric appliance protector
06/24/1992CN2108327U Electronic automatic temp.-controlled leakage of electricity protector
06/24/1992CN2108304U Single phase kilowatt-hour meter capable of avoiding leak and fraudulent use of electricity
06/24/1992CN2108303U Current limiting arrangement capable of avoiding fraudulent use of electricity
06/23/1992US5124875 Overcurrent protection apparatus
06/23/1992US5124566 Shutoff circuit for sensor controlled switch
06/23/1992CA1304121C Control device for a dc motor intended for in particular driving opening elements on automobile vehicles
06/23/1992CA1304112C Molded case circuit breaker actuator-accessory module
06/20/1992WO1992011676A1 Addressable relay module for circuit breakers
06/17/1992EP0490787A1 Protection circuit limiting overvoltages between selected limits and its monolithic integration
06/17/1992EP0490786A1 Programmable protection circuit and monolithic manufacturing thereof
06/17/1992EP0490123A2 Fault current sensor circuit
06/17/1992EP0490079A2 Overvoltage protecting device
06/17/1992CN2107725U Energy-saving leakage relay
06/16/1992CA1303717C Add-on ground fault module
06/16/1992CA1303716C Circuit interrupter apparatus with a selectable display means
06/16/1992CA1303715C Circuit interrupter apparatus with a battery backup and reset circuit
06/16/1992CA1303714C Circuit interrupter apparatus with a style saving override circuit
06/14/1992WO1992010878A1 Circuit protection device
06/14/1992CA2096641A1 Circuit protection device
06/10/1992CN2107117U Electronic ballast
06/10/1992CN2107115U Electronic circuit source of high-efficient neon lamp
06/10/1992CN2107080U Multi-functional three-phase leakage protector
06/10/1992CN2107079U Segmental power network load computing control terminal
06/10/1992CN1017010B Dual-delay current limiter for reset after power-off
06/09/1992US5121282 Arcing fault detector
06/03/1992EP0488240A1 Inverter apparatus provided with electric discharge control circuit of DC smoothing capacitor and method of controlling the same
06/03/1992EP0488123A2 Digital protective relay apparatus
06/03/1992EP0487964A2 Circuit arrangement for protecting a field-effect-controlled semiconductor against overload
06/03/1992EP0487920A1 PTC element
06/03/1992CN2106432U High voltage combined protection relay device
06/03/1992CN2106431U Phase interruption protector
06/03/1992CN2106430U Protective device for rediffusion on wire network
06/03/1992CN2106388U Microcomputer power energy-saving meter
06/02/1992US5119289 Device for protecting an electric operating means
06/02/1992US5119262 High-voltage transformer protection circuit
06/02/1992CA1302480C Method to control stops of an intermittently operating electric motor
05/1992
05/31/1992WO1992009899A1 Display for a circuit breaker trip unit
05/31/1992CA2074264A1 Display for a circuit breaker trip unit
05/30/1992WO1992010018A1 Fail-resistant solid state interruption system
05/30/1992WO1992009943A1 Solid state current controlled interruption system
05/30/1992CA2074268A1 Fail-resistant solid state interruption system
05/29/1992WO1992009129A1 Device for processing data provided by the contact potential, and cutoff device linked thereto
05/27/1992CN2105825U Electronic ballast with startless protective device
05/27/1992CN2105786U Protector for the water discharging electromagnet of washing machine
05/27/1992CN2105785U Earthed leak-proof protector
05/27/1992CN2105784U Phase shift composite relay
05/27/1992CN2105783U High or low voltage phase-losing protector for electric distribution appliance
05/27/1992CN2105782U Refrigerator protector
05/27/1992CN2105781U Communication car power source protector
05/27/1992CN2105780U Powerless automatic electricity limiter
05/27/1992CN2105779U Infrared monitor for electricity fraudulent use proof
05/27/1992CN2105717U Domestic multi-function ac voltage regulator
05/26/1992US5117325 Controllable recloser for power line
05/26/1992US5117323 Electrode line protection
05/26/1992CA1301904C Solid-state trip device comprising a zero sequence current detection circuit
05/26/1992CA1301826C Solid state protector unit
05/20/1992CN2105128U Energy-saving voltage-stabilizing refrigerator protector
05/19/1992US5115371 Circuit breaker comprising an electronic trip device
05/19/1992US5115226 Relay for detecting a current disturbance and asserting an output
05/19/1992CA1301298C Full automatic electric shock protector apparatus
05/14/1992WO1992008267A1 Servomotor-control circuit
05/14/1992WO1992008266A1 Line voltage monitor and controller with low voltage stabilization
05/14/1992DE4035067A1 Schaltungsanordnung zur steuerung eines stellmotors Circuit arrangement for the control of an alternate engine
05/13/1992EP0484759A2 A power controlling apparatus with a power failure detecting function
05/13/1992EP0484698A1 Differential-type electronic safety device for household appliances
05/13/1992EP0484341A1 A power supply.
05/13/1992CN2104520U 自保式全自动过压保护器 Automatic self-protection overvoltage protection
05/13/1992CN1061114A Circuit protection arrangement
05/12/1992US5113304 Digital protective circuit breaker
05/07/1992DE4106681C1 Load current control circuit for electric load - has end stage controlling switching relay for main and auxiliary load circuits
05/06/1992EP0483591A2 Low tension switch device
05/06/1992EP0483450A1 Component circuit with at least one semiconductor switch for switching a load
05/06/1992EP0483165A1 A ground fault circuit interrupter having loss of neutral or loss of ground protection.
05/06/1992EP0483164A1 A ground fault circuit interrupter.
05/06/1992CN2103879U Electronic ballast possessing lamp non-starting protection function
05/06/1992CN2103878U Electronic ballast with balance detecting protection circuit
05/06/1992CN2103867U Self-protective type contactless protector
05/06/1992CN2103865U Multifunctional safety power plug
05/06/1992CN1060932A Multifunctional circuit-protecting device
05/06/1992CN1060909A Multifunctional self-controlling watt-hour meter
05/05/1992US5111189 Fault indicator with timing control
04/1992
04/30/1992DE4127457A1 Diverter isolating switch between mains conductors and earth - is activated by excessive temp. detected by sensors in close thermal contact with supporting circuit board
04/29/1992EP0482767A2 Fault detection arrangement
04/29/1992CN2103212U A. c. open-phase overload protector
04/29/1992CN2103196U Self-brake energy-saving pullswitch for power cut
04/29/1992CN1060744A Overcurrent protection device
04/28/1992CA1299723C Electric safety supply apparatus and connector device combination
04/28/1992CA1299698C Shorted-coaxial-cable detector for local-area networks
04/28/1992CA1299643C Digital circuit interrupter with electric motor trip parameters
04/23/1992DE4033444A1 Overcurrent protection for network fed from emergency supply - has shunt for measuring current through fuse link, and breaks circuit by controlled semiconductor switch operation
04/22/1992EP0480937A1 Loss of neutral or ground protection circuit.
04/21/1992CA1299225C Polyphase circuit fuse condition indicating device
04/16/1992DE4032689A1 Monitoring circuit for semiconductor operating voltage - uses two opto-couplers with their logic output signals combined
04/15/1992CN2101958U Dynamic voltage comparative type selective high voltage leaky protector
04/15/1992CN2101947U Multifunctional safety socket
04/15/1992CN1060359A Arrangement on watt-hour meter for avoiding fraudulent use
04/14/1992US5105328 Semiconductor circuit having an excess voltage protection circuit
04/14/1992US5105327 Ac power conditioning circuit