| 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) |
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| 07/14/1999 | EP0928510A1 Circuit for detection of current in an electric conductor to control electronically controllable tripping devices |
| 07/14/1999 | CN2329085Y Tripping device with displayer |
| 07/13/1999 | US5923830 Non-interrupting power control for fault tolerant computer systems |
| 07/13/1999 | US5923516 Apparatus for protecting electrical and electronic equipment and associated method |
| 07/12/1999 | CA2258179A1 Electronic trip unit with dedicated override current sensor |
| 07/08/1999 | WO1999034496A1 A device for overvoltage protection |
| 07/08/1999 | WO1999034270A1 Dc power bus voltage transient suppression circuit |
| 07/08/1999 | DE19800188A1 Protection device for preventing breakdown of central processing unit used in computer |
| 07/08/1999 | DE19758233A1 Verfahren und Vorrichtung zur Kurzschluß- und Überlastausschaltung mit aktiven Limitern Method and apparatus for short circuit and overload switch-off with active limiters |
| 07/07/1999 | EP0927447A1 Actuator, in particular an electric motor gear drive system, for moving closure parts operated by extraneous force |
| 07/07/1999 | CN2328121Y Electric power transmission device between ship and harbour |
| 07/06/1999 | US5920452 Circuit and method for protecting from overcurrent conditions and detecting an open electrical load |
| 07/06/1999 | US5920451 Earth leakage circuit breaker assembly |
| 07/06/1999 | CA2157307C Zero-sequence current suppressor |
| 07/06/1999 | CA2115852C Overvoltage protection circuit |
| 07/01/1999 | WO1999033155A1 Method and system for series fault protection |
| 07/01/1999 | WO1999032948A1 Clock line over-current protector and industrial control system |
| 06/30/1999 | EP0926796A2 Protection apparatus for a storage battery |
| 06/30/1999 | EP0926795A1 Electronic control circuit for a relay, especially for supply control of a heatable element of a windshield or rear window of an automobile |
| 06/30/1999 | EP0925626A1 Method and arrangement for disconnecting consumers |
| 06/30/1999 | CN1221242A Circuit device and method for triggering overvoltage protection unit |
| 06/29/1999 | US5917687 For monitoring the insulation of electrical circuits |
| 06/29/1999 | US5917686 High current ground fault circuit interrupter |
| 06/29/1999 | US5917299 Motor drive control device |
| 06/26/1999 | CA2256906A1 Protection apparatus for a storage battery |
| 06/24/1999 | WO1999031693A1 An electric switching device and a method for performing electric disconnection of a load |
| 06/24/1999 | WO1999031692A1 A device for switching |
| 06/24/1999 | WO1999031565A2 Method and apparatus for in-system debugging |
| 06/24/1999 | DE19857906A1 Procedure for controlling and protecting electric motors used in models, especially of aeroplanes, ships and cars |
| 06/23/1999 | EP0924837A2 Special feature for protective gear, in particular for fault current and/or differential current circuit breakers |
| 06/23/1999 | EP0924833A1 Differential current protection device with a transducer circuit |
| 06/23/1999 | EP0924585A1 Surveillance device for garage door drive |
| 06/23/1999 | CN2325908Y Multi-function automatic protector for protecting electric appliance from being fired |
| 06/22/1999 | US5914842 In an electrical power supply system |
| 06/17/1999 | WO1999030338A1 Electromagnetic relay |
| 06/17/1999 | WO1999030300A1 System and method for detecting voltage and current imbalance in an electrical energy supply |
| 06/17/1999 | DE19753852A1 Elektromagnetisches Relais Electromagnetic relay |
| 06/17/1999 | CA2312486A1 Electromagnetic relay |
| 06/16/1999 | EP0923179A2 Circuit for sensing no-load condition |
| 06/16/1999 | EP0922322A2 Power back |
| 06/16/1999 | EP0922321A1 Circuit arrangement for monitoring of an electronic tripping device for low voltage switches |
| 06/16/1999 | EP0875090B1 Connector, in particular a plug-in connector for tt and tn networks |
| 06/16/1999 | EP0815629B1 Delayed-action fault current of differential current circuit-breaker |
| 06/16/1999 | EP0664933B1 Sensor for registration of leak current |
| 06/16/1999 | CN1220043A Electric high voltage AC machine |
| 06/16/1999 | CN1220026A DC transformer/reactor |
| 06/15/1999 | US5912793 Device and method for protecting a CPU from being damaged by overrating voltage or overrating current |
| 06/15/1999 | US5912546 Battery charger for battery packs |
| 06/15/1999 | CA2087784C Remote control circuit breaker system |
| 06/09/1999 | EP0920720A1 Servo motor, in particular electric motor gear drive |
| 06/09/1999 | EP0792533B1 A system for off-mains switching of current consuming devices such as actuators |
| 06/09/1999 | EP0730791B1 Process for regulating an automatic door operated by a drive motor |
| 06/09/1999 | CN2323491Y Automatic air switch capable of automatic power transmission and its automatic power transmission device |
| 06/08/1999 | US5910139 Numeric keypad simulated on touchscreen |
| 06/08/1999 | CA2129826C Method and device for preventing overstabilization of longitudinal differential protection in case of internal fault |
| 06/08/1999 | CA2064080C Ground fault circuit interrupter having loss of neutral or loss of ground protection |
| 06/02/1999 | EP0920242A1 Circuit arrangement to protect an electrical component against an electrical potential |
| 06/02/1999 | EP0920104A2 Low voltage network with a filter tuned on a given current harmonic |
| 06/02/1999 | DE19754771A1 Electronic overcurrent trip with microprocessor device |
| 06/02/1999 | DE19751470A1 Overvoltage protection device for electrical apparatus connected to power line |
| 06/02/1999 | CN2322298Y Leakage current acition protector with sensor |
| 06/02/1999 | CN2322297Y Leakage protector for road lamp |
| 06/02/1999 | CN2322296Y AC protective purifier |
| 06/01/1999 | US5909112 Configuration and test process for semiconductor overcurrent detecting circuit |
| 05/27/1999 | WO1999025483A1 Spray gun power supply unit monitor |
| 05/27/1999 | WO1999009575A3 Fuse element for electric installations |
| 05/26/1999 | EP0918388A1 Electrical fault protection in a data storage system |
| 05/26/1999 | CN2321151Y Protector for cable TV line facility |
| 05/26/1999 | CN2321150Y Automatic controller for time-delay protection of domestic electrical equipment |
| 05/25/1999 | US5907467 Device for energizing and determining a condition of a coil |
| 05/25/1999 | US5907463 For a switching mode power supply |
| 05/25/1999 | CA2160173C 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 pointof exciting circuit |
| 05/20/1999 | WO1999025049A1 Load indicator |
| 05/20/1999 | WO1999025047A1 Matching overcurrent characteristic curves |
| 05/20/1999 | WO1999010902A3 Circuit breakers with ptc (positive temperature coefficient resistivity) elements |
| 05/19/1999 | CN2319946Y Delayed cut-off protector of computer power source |
| 05/18/1999 | US5905619 Arc fault detection system |
| 05/18/1999 | US5905615 Electric power distribution system with automatic protection breakers and related method |
| 05/14/1999 | WO1999023498A1 Method and circuit for monitoring a defined amplitude threshold value of signals formed by alternating voltage |
| 05/12/1999 | EP0915551A2 Schmitt trigger-configured ESD protection circuit |
| 05/12/1999 | EP0914664A1 Circuit arrangement for reducing transients caused by an electromechanical switch with overcurrent protection |
| 05/12/1999 | EP0850502B1 Circuit configuration to detect excess temperature due to current flow |
| 05/12/1999 | CN2318743Y Automatic protector for transformer |
| 05/12/1999 | CN1216644A Electronic branch switching device |
| 05/12/1999 | CN1043392C Earth fault circuit breaker |
| 05/11/1999 | US5903422 Overcurrent sensing circuit for power MOS field effect transistor |
| 05/11/1999 | US5903028 Static and monolithic current limiter and circuit-breaker |
| 05/11/1999 | CA2130534C Arc detection using current variation |
| 05/06/1999 | WO1999021745A1 Circuit configuration to monitor a regulated output voltage in a motor vehicle |
| 05/06/1999 | EP0913904A2 Method for increasing reliability of an earth fault circuit breaker and apparatus using same |
| 05/06/1999 | EP0913017A1 Circuit protection arrangements |
| 05/06/1999 | DE19748633A1 Method of monitoring a defined amplitude threshold value for a.c. voltage input signals, esp. for electronic controllers |
| 05/06/1999 | DE19748632A1 Method of monitoring input voltages of mains stages with AC voltage supply, e.g. for memory programmable controllers |
| 05/05/1999 | CN2317568Y Test instrument |
| 05/05/1999 | CN2317556Y Anticreeping socket for electrical equipment |
| 05/05/1999 | CN1215940A Device for multi-threshold monitor and multi-slope drive protection of insulation bank tube and its control method |
| 04/29/1999 | WO1999021260A1 System for preventing undesired protective relay tripping actions due to coupling capacitor voltage transformer transients |
| 04/29/1999 | DE19743499A1 Monitoring method for circuit state parameters of switching devices e.g. power switchgear |
| 04/28/1999 | EP0911937A2 Test device for a fault current circuit breaker |
| 04/28/1999 | EP0911851A1 Control device for an electromechanical contactor-circuit breaker type device with separable power contacts |