Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726) |
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04/30/1996 | US5512883 Method and device for monitoring the operation of a motor |
04/30/1996 | US5512811 Starter/generator system having multivoltage generation capability |
04/25/1996 | DE4437351A1 Adjustment of protection circuit of motor for document shredder cutter drive |
04/24/1996 | EP0707751A1 Process for controlling the d.c. motor used for moving a window in a motor vehicle |
04/24/1996 | EP0655166B1 Protective device for an electrical consumer |
04/24/1996 | CN1121276A Motor operation controller and insulation type bidirectional DC voltage converter |
04/24/1996 | CN1121164A Air conditioning device |
04/23/1996 | US5511183 Non-volatile memory controlling apparatus and applications of the same to electronic computer peripheral equipments |
04/23/1996 | US5510944 Power supply over-voltage protection |
04/23/1996 | US5510687 Electric motor controller with temperature protection |
04/23/1996 | US5510658 Circuit breaker device for electric vehicle |
04/17/1996 | EP0707367A1 Ground fault detecting apparatus and method for detecting ground fault of field circuit and exciting circuit by detecting ground fault current flowing from ground to neutral point of exciting circuit |
04/17/1996 | CN2225109Y Switch DC-DC inverter |
04/17/1996 | CN2225108Y Multi-channel electronic relay |
04/16/1996 | US5508620 Method and device for determining ground faults on the conductors of an electrical machine |
04/16/1996 | US5508601 Protection system for a shorted rectifying diode within a synchronous generator |
04/11/1996 | WO1996010862A1 Rectifier bridge apparatus |
04/11/1996 | WO1996010857A1 Current differential protection arrangement |
04/11/1996 | DE4445060C1 Power switch with electronic tripping device |
04/11/1996 | DE19524005A1 Motorbetriebsregler und bidirektionaler Isolations-Gleichspannungsumformer Engine operating controls and bidirectional isolation Gleichspannungsumformer |
04/11/1996 | DE19512018C1 Magnetic field compensation circuit for HV cable |
04/11/1996 | CA2176116A1 Rectifier bridge apparatus |
04/10/1996 | EP0608290B1 Method and device for avoiding overcurrents in a welding converter |
04/09/1996 | US5506743 Solid state overload relay with phase unbalance protection having RMS current approximation |
04/09/1996 | US5506487 Systems and methods for driving a compressor with a motor |
04/09/1996 | US5506485 Digital modular microprocessor based electrical contactor system |
04/04/1996 | WO1996010288A1 Method and device for monitoring at least two redundant control channels for an electric-generator exciter |
04/04/1996 | WO1996010223A1 Delayed safety braking apparatus for a servomotor control system |
04/04/1996 | CA2201289A1 Delayed safety braking apparatus for a servomotor control system |
04/03/1996 | CN2223866Y Four-in-one type phase-lost protective switch for motor |
04/03/1996 | CN2223865Y Phase-lost protective device for electric motor |
04/02/1996 | US5504446 AC voltage clipper in MOS-technology |
04/02/1996 | US5504405 Switch machine controller with fail safe mechanism |
03/28/1996 | WO1996009676A1 Transient voltage protection circuit for electrical power converters |
03/28/1996 | WO1996009674A1 Automatic overvoltage protection for an alternator in a locomotive propulsion system |
03/28/1996 | DE4443602A1 On/off and directional controller for mains powered vent actuator |
03/28/1996 | DE19533968A1 Semiconductor power-switching circuit with self-diagnosis function |
03/28/1996 | DE19501373A1 Halbleiter-Verbundelement und Verfahren zum Detektieren von Fehlerzuständen in einer das Element enthaltenden Wechselrichtereinrichtung Semiconductor compound element and method for detecting fault conditions in an inverter device, the element containing |
03/28/1996 | CA2174096A1 Automatic overvoltage protection for an alternator in a locomotive propulsion system |
03/27/1996 | CN1119359A Semiconductor composite element, and method of detecting abnormal conditions in an inverter device having the element |
03/26/1996 | US5502613 Superconducting magnet abnormality detection and protection apparatus |
03/26/1996 | US5502611 Circuit for providing phase loss and phase imbalance protection |
03/26/1996 | US5502610 Switching regulator having high current prevention features |
03/26/1996 | US5502368 Hybrid alternator with voltage regulator |
03/26/1996 | US5502362 Asynchronous machine with a short-circuit rotor |
03/20/1996 | CN2222978Y General electronic battery cell for motorcycle |
03/20/1996 | CN2222976Y Open delta phase interruption protection arrangement |
03/20/1996 | CN1118878A Device for detecting fault of dc-to-ac converter system |
03/14/1996 | WO1996008067A1 A self-excited oscillator type switch power supply with overcurrent protection |
03/14/1996 | WO1996008066A1 Circuit for operating an electric motor |
03/14/1996 | WO1996008065A1 Circuit for operating an electric motor |
03/14/1996 | WO1996007566A1 Windscreen wiper device |
03/14/1996 | DE4432059A1 Schaltung zum Betreiben eines Elektromotors Circuit for operating an electric motor |
03/14/1996 | DE4432058A1 Schaltung zum Betreiben eines Elektromotors Circuit for operating an electric motor |
03/13/1996 | EP0701312A2 Arcing fault detector |
03/13/1996 | EP0700590A1 Control of electric loads during generator failure in a multi-generator system |
03/13/1996 | CN2222410Y Phase-lose protector for electric motor |
03/13/1996 | CN2222409Y Antijamming solid protector against phase interruption |
03/13/1996 | CN1118530A Overvoltage protection circuit |
03/13/1996 | CN1118460A Regulator with an overcurrent protection device |
03/12/1996 | US5499186 Three-phase power converter with fail soft characteristics |
03/12/1996 | US5499154 Protective shut-down system for switch-mode power supply |
03/12/1996 | CA2024588C Switching regulator of a simple structure capable of reducing a switching loss |
03/12/1996 | CA2017074C Frequency control based on sensing voltage fed to an induction motor |
03/07/1996 | DE4431699A1 Scheibenwischvorrichtung Windshield wiper device |
03/07/1996 | DE4042496C2 Safety closure system for automatic door or window |
03/06/1996 | CN2221836Y Protective starter for motor |
03/06/1996 | CN1118119A Self excited switch source with overcurrent protection |
02/29/1996 | DE19507541C1 Electric operating drive for automobile sunroof or convertible roof |
02/28/1996 | EP0698955A1 Method for reducing the dynamic closing force of motor operated doors and motor control apparatus for carrying out the method |
02/27/1996 | US5495381 Protection system for undetected over voltage in an isolated voltage regulator |
02/27/1996 | US5495164 Boost converter |
02/27/1996 | US5495149 Power supply |
02/21/1996 | EP0697757A1 Electrostatic discharge protection circuit for an integrated circuit device |
02/21/1996 | CN2220701Y Multifunction electric bicycle |
02/21/1996 | CN2220698Y Protector for motor a.c. contactor adhesion |
02/21/1996 | CN2220697Y Three-phase motor protector |
02/21/1996 | CN1117213A Full-function protector for electric machine |
02/20/1996 | US5493485 Protection device for stopping operation of an inverter |
02/20/1996 | US5493468 Electrical contactor system with transfer of scaled overload information |
02/20/1996 | US5493228 Method and device for measuring and recreating the load current in a power network in connection with the occurrence of faults |
02/20/1996 | US5493197 Battery charge control circuit |
02/20/1996 | US5493191 B-type actuator with time out |
02/20/1996 | US5493154 Temperature share scheme |
02/20/1996 | US5491978 Electronically commutated motor for driving a compressor |
02/15/1996 | DE4428443A1 Vehicle electric motor monitoring and control method |
02/14/1996 | EP0696842A1 Inverter for pumps and a pump unit therewith |
02/14/1996 | EP0696830A1 Locating earth faults in electric networks with grounding coil |
02/14/1996 | CN1116741A AC line stabilization circuitry for high power factor loads |
02/13/1996 | US5491601 Circuit for detecting a short circuit in a low side driven load |
02/07/1996 | EP0584155B1 A motor reverse system |
02/07/1996 | CN2219556Y Safety leader circuit controller |
02/06/1996 | US5488834 Control circuit for a refrigerating system |
02/01/1996 | DE4436254C1 Differential current protection device for electrical energy supply |
02/01/1996 | DE4426961A1 Overload protection for DC motor arranged in primary or main circuit for current |
01/31/1996 | EP0695024A2 Air conditioning device |
01/31/1996 | EP0694694A1 Automatic pump control system with variable test cycle initiation frequency |
01/31/1996 | EP0694226A1 Method of monitoring a temperature rise of a squirrel cage induction motor |
01/31/1996 | CN2218986Y Motor three phase contactor with phase interruption protective function |
01/31/1996 | CN2218985Y Phase-loss, over-load protector for motor |