| 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) |
|---|
| 06/03/1993 | DE4139647A1 Anordnung zur netzfreischaltung von steuereinrichtungen Arrangement for mains cut-off of tax facilities |
| 06/02/1993 | EP0544262A2 Circuit for monitoring a moving object |
| 06/02/1993 | CN2135206Y Overload, short-circuit, over-voltage and leakage protecting switch |
| 06/02/1993 | CN2135205Y Phase-lack and under-voltage protector for three-phase electrical equipment |
| 06/02/1993 | CN2135204Y Multi-functional intelligent controller of electric furnace |
| 06/02/1993 | CN2135194Y Under-voltage tripping relay for high-voltage electrical equipment |
| 06/01/1993 | US5216621 Fault detection system |
| 06/01/1993 | US5216352 Solid state current controlled interruption system |
| 06/01/1993 | US5216332 Magnetic-electronic ballast for fluorescent lamps |
| 05/27/1993 | WO1993010587A1 Electronic apparatus for measuring the activity of an oil transformer |
| 05/27/1993 | WO1993010586A1 Personnel protection system for electrical power connections |
| 05/26/1993 | CN2134738Y Overload protection and auto-control system means for ic locomotive |
| 05/26/1993 | CN2134735Y Multifunctional protector used for power transformer low voltage network |
| 05/26/1993 | CN2134734Y Multifunctional electricity consumption protector |
| 05/26/1993 | CN2134733Y Phase loss protector alarm for 3-phase power source |
| 05/26/1993 | CN2134732Y Cut-off protecting switching circuit |
| 05/26/1993 | CN2134731Y Protective means for solid-state relay |
| 05/26/1993 | CN2134681Y Refrigerator energy-saving protector with automatic temp. control |
| 05/25/1993 | US5214560 Microprocessor watch-dog monitor for electronic trip units |
| 05/25/1993 | US5214559 Monitoring device with a switching mechanism |
| 05/19/1993 | EP0542040A2 Trip control device for circuit breaker |
| 05/19/1993 | EP0541876A1 Overload protection circuit capable of sustaining high inrush current in the load circuit |
| 05/19/1993 | DE4220571A1 Fault current circuit breaker - has trip current level characteristic evaluated to identify optimum response period. |
| 05/19/1993 | CN2133975Y Life-prolonging protector for tv set and vtr |
| 05/19/1993 | CN2133966Y Overcurrent protection voltage regulator |
| 05/19/1993 | CN2133964Y Multifunctional protector for power-supply or-use |
| 05/19/1993 | CN2133963Y Flash relay for phase interruption or single-phase ground protection |
| 05/19/1993 | CN2133962Y Electric leakage protector |
| 05/19/1993 | CN2133961Y Double-protection three-phase electric leakage protector |
| 05/19/1993 | CN2133960Y Integrated circuit type current protector |
| 05/19/1993 | CN2133959Y Ac electronic cut-off switch |
| 05/19/1993 | CN1072294A Multi-function automatic monitor for power consumption |
| 05/19/1993 | CN1072293A Time-sharing measurement load control casing |
| 05/19/1993 | CN1020701C Controlling apparatus for elevator door |
| 05/18/1993 | CA1318016C Current fault detection system and method for ac controllers |
| 05/13/1993 | WO1993009634A1 Device for connection and disconnection of an apparatus to a current source |
| 05/13/1993 | WO1993009584A1 Open circuit monitor |
| 05/13/1993 | DE4137053A1 Rapid short circuit identification system - has electronic measuring and processing system for current and voltage values which compare trip command with predetermined limit values in digital comparator |
| 05/13/1993 | DE4136532A1 Determining selectivity limit of series-connected power switches - determining operate margin of magnetic trigger of main switch by calculation of three parameters |
| 05/12/1993 | CN2133077Y Single-phase electricity leakage switch with quick interruption |
| 05/12/1993 | CN2133076Y Integrated three-phase electricity leakage protector |
| 05/12/1993 | CN2133075Y Safety composite protecter for household electrical equipment |
| 05/12/1993 | CN2133074Y Protect delay relay for 24v. dc. over-and under-voltage |
| 05/12/1993 | CN2133073Y Electronic insurance box |
| 05/12/1993 | CN2133072Y Flush mounted shock and overcurrent protector for panel |
| 05/06/1993 | DE4136240A1 Overcurrent protection circuit for DC supply network - uses electromagnetically-operated overcurrent switch for galvanic separation of current consumer circuit, actuated w.r.t. monitored parameters |
| 05/06/1993 | DE4136238A1 Overcurrent protection circuit for DC supply network - uses overcurrent protection switch providing galvanic separation of consumer circuit in response to detected voltage gradient |
| 05/05/1993 | EP0540379A1 Centralised differential circuit breaker |
| 05/05/1993 | CN2132381Y High power electronic ballast with preheating protective function |
| 05/05/1993 | CN2132328Y High voltage circuit combined relay with protector, controller and monitor |
| 05/05/1993 | CN2132320Y Simple circuit quick cut-off single phase leakage switch |
| 05/05/1993 | CN2132319Y Electricity fraudulent use proof, anticreeping, shock-proof safety protective device |
| 05/05/1993 | CN2132318Y Multifunctional electronic electricity-leakage protector |
| 05/05/1993 | CN2132317Y Civil electricity-leakage, overload stealing protector |
| 05/05/1993 | CN2132316Y Three-phase steal-preventing electrical appliance |
| 05/05/1993 | CN2132315Y Phase interruption protective device for contactor |
| 05/05/1993 | CN2132314Y Multifunctional domestic protector for electrical appliance |
| 05/05/1993 | CN2132313Y Neutral breaking protective device for electrical appliance |
| 05/05/1993 | CN2132312Y Protective striking arc controller for electrothermal mattress |
| 05/05/1993 | CN1071783A Automatic switch safety circuit for outdoor illumination |
| 05/04/1993 | US5208720 Electronic trip device with short delay function |
| 05/04/1993 | US5208494 Method for the elimination of transients from the operating voltage of TDMA system |
| 04/29/1993 | WO1993008628A1 Method and device for avoiding overcurrents in a welding converter |
| 04/28/1993 | EP0539351A1 Device for indicating that a current passage occurred in the conductors of lightning protection equipment |
| 04/28/1993 | EP0539301A1 Coupling device of an external power supply to an aircraft on the ground |
| 04/28/1993 | EP0538658A1 Current sensor with integrated Hall effect device |
| 04/28/1993 | EP0538298A1 A switchboard. |
| 04/28/1993 | CN2131236Y Multifunctional protector for power use |
| 04/28/1993 | CN2131235Y All-functional apparatus for avoiding or indicating fraudulent use of power |
| 04/28/1993 | CN2131234Y Single-phase electric leakage protector |
| 04/28/1993 | CN2131233Y Remote-controlled integrated auto-breaking protector |
| 04/28/1993 | CN2131232Y Electronic dc current protection relay |
| 04/28/1993 | CN2131109Y Travelling test type single-phase arrangement for avoiding or indicating fraudulent use of power |
| 04/28/1993 | CN2131108Y Arrangement for avoiding or indicating fraudulent use of power |
| 04/28/1993 | CN2131107Y Electric meter for avoiding or indicating fraudulent use of power, and safety power supply |
| 04/27/1993 | US5206777 Three-phase panelboard using standard rated three-pole circuit protective devices in a grounded delta system |
| 04/27/1993 | US5206775 Circuit bypass device |
| 04/27/1993 | CA1316980C Power supply |
| 04/22/1993 | DE4134461A1 Verfahren und vorrichtung zur vermeidung uebergrosser stroeme in einem schweissumrichter Method and device for avoidance by large currents in a welding converter |
| 04/21/1993 | CN2130271Y Temp.-controlled protector |
| 04/20/1993 | US5204798 Metering accessory for molded case circuit breakers |
| 04/20/1993 | US5204797 Solid state overcurrent protection system for circuit breakers |
| 04/15/1993 | WO1993007667A1 Device for overload and short-circuit protection in electric plants |
| 04/15/1993 | WO1993007666A1 Protection device for signal and power carrying line |
| 04/15/1993 | WO1993007597A1 Communication interface for bus connected circuit breakers |
| 04/15/1993 | DE4129495C1 Adjusting short-circuit torque of electric servo motor - storing short circuit current required for desired torque in electronic motor controller after comparison with actual torque |
| 04/14/1993 | EP0537084A1 Circuit breaker with selective locking |
| 04/14/1993 | EP0537066A1 Method for the selective detection of resistive defects in power-distribution networks and device for carrying out this method |
| 04/14/1993 | CN2129996Y Low voltage electric power timed quatitative complex controller |
| 04/14/1993 | CN2129994Y Micro power consumption phase interruption protector |
| 04/14/1993 | CN2129970Y Silence power saving phase losing protector for contactor |
| 04/14/1993 | CN1020320C Carrier-typre device for electric shock protection and avoiding fraudulent use of electricity |
| 04/13/1993 | US5202811 Electrical power system with high voltage protection responsive to plural control voltages |
| 04/13/1993 | US5202662 Resettable circuit breaker for use in ground fault circuit interrupters and the like |
| 04/08/1993 | DE4142760C1 Monitor for current circuit of appliance, e.g. separate lamps of motor vehicle - uses differential amplifier as comparator with inputs across fuse and output supplying warning appts. if heat exceeds threshold value |
| 04/07/1993 | EP0536058A1 Electronic trip device comprising local detected fault type indicating means |
| 04/07/1993 | EP0534950A1 Process for controlling the current supply device of an electrofilter. |
| 04/07/1993 | CN2129482Y Three phase acoustic-optic alarm automatic break-off switch |
| 04/06/1993 | US5200873 Circuit interrupter |
| 04/06/1993 | CA1315867C Faulted phase selector for single pole tripping and reclosing schemes |