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)
03/2000
03/09/2000WO2000013281A1 Protection device for low voltage networks
03/09/2000WO2000013280A1 Protection device for low voltage networks
03/09/2000WO2000013279A1 Circuit configuration and method for an electronic fuse
03/09/2000DE19839617A1 Schutzeinrichtung für Niederspannungsnetze Protection device for low-voltage networks
03/09/2000DE19838492A1 Explosionsgeschützte Steckverbindungsanordnung Explosion-proof connector assembly
03/08/2000EP0984478A1 Converting material for leak current protectors and its application
03/08/2000EP0983626A1 Remote-control monitoring of an electronic overcurrent trip
03/08/2000EP0886903B1 Power dissipation limiter for high frequency switch
03/08/2000CN1246971A Circuit for selective power supply to electrical unit
03/08/2000CN1246956A Winding in transformer or inductor
03/08/2000CN1246620A Current transformer saturation crrection using analog nerval net
03/08/2000CN1246616A Monitor of grounding system
03/08/2000CN1050238C Detector for monitoring integrity of ground connection of electrical appliance
03/08/2000CN1050237C Fault current protecting switch with energy storing circuit
03/08/2000CN1050236C Excess current detecting device
03/07/2000US6034497 Apparatus for detecting pinching of an object in a power window
03/02/2000WO2000011773A1 Method for performing instantaneous protection in a trip unit
03/02/2000WO2000011758A1 Explosion-proof plug-in connector
03/02/2000WO2000011696A1 Circuit interrupting system with independent trip and reset lockout
03/02/2000WO2000011692A1 Short-circuiting device
03/02/2000DE19839616A1 Schutzeinrichtung für Niederspannungsnetze Protection device for low-voltage networks
03/02/2000DE19838958A1 Safety protection for a number of electrical loads uses a combination of controlled switches and a common fuse, is simple and cost effective
03/02/2000DE19837628A1 Einrichtung zum Kurzschließen Means for shorting
03/02/2000CA2341552A1 Circuit interrupting system with independent trip and reset lockout
03/01/2000EP0982825A1 Apparatus for regulating the speed of rotation of an electrical motor and apparatus for centrifuging comprising such a device
03/01/2000EP0981848A1 Protective circuit
03/01/2000CN2366999Y 自动开关 Automatic switch
03/01/2000CN2366998Y Self-recovery type electric arrangement for emergency protection
03/01/2000CN2366997Y Delay type disconnection means for leakage
03/01/2000CN2366880Y Voltage stabilization protector for ac circuit
03/01/2000CN2366857Y Circuit arrangement for definite range threshold for measuring alternating voltage signal
03/01/2000CN1246213A Device and method relating to protection of object against over-currents comprising over-current reduction and current limitation
03/01/2000CN1246212A Device and method relating to protection of object against over-currents comprising over-current reduction
03/01/2000CN1246211A Device and method relating to protection of object against over-currents comprising over-current reduction
03/01/2000CN1246210A Device and method relating to protection of object against over-currents comprising over-current reduction and current limitation
03/01/2000CN1246209A Switching device including spark gap for switching electrical power
03/01/2000CN1246208A Switching device including spark gap for switching electrical power
03/01/2000CN1050001C Current signal correction process and device
02/2000
02/29/2000US6032268 Processor condition sensing circuits, systems and methods
02/29/2000US6031705 Surge protection circuit, in particular for inputs of integrated circuits
02/29/2000US6031703 Protection relay and process
02/29/2000US6031699 Arc fault detector apparatus, means and system
02/24/2000WO2000010238A1 Earth leakage protective relay
02/24/2000DE19837059A1 Auslösevorrichtung für einen Schutzschalter, insbesondere einen Fehlerstrom-Schutzschalter Tripping device for a circuit breaker, especially a residual current circuit breaker
02/23/2000EP0981195A2 Control arrangement for aperture closures
02/23/2000EP0981193A2 Apparatus sensitive to arc amplitude for envelope detection of low current arcs
02/23/2000EP0981148A2 Trip device for a circuit breaker, especially for an earth fault circuit breaker
02/23/2000EP0980598A1 Electrical plug
02/23/2000EP0980597A1 Matching overcurrent characteristic curves
02/23/2000EP0980546A1 Non-intrusive power control for computer systems
02/23/2000CN2365802Y Short-distance connecting line cipher locking protector
02/23/2000CN2365800Y Automatic circuit protector for switch power supply
02/23/2000CN2365756Y Overload switch
02/23/2000CN2365755Y Remote-control leakage protector
02/23/2000CN2365705Y Full-automatic multiple protection AC regulated voltage stabilized power supply
02/22/2000US6028756 Using topological features to lower the blowing current needed for fuses
02/22/2000US6028754 System for preventing undesired protective relay tripping actions due to coupling capacitor voltage transformer transients
02/17/2000WO2000008663A1 Arc fault detection system
02/17/2000DE19836828A1 Unterspannungsauslöser Undervoltage release
02/17/2000DE19835781A1 Triggering of safety device protecting vehicle electrical wiring is avoided during transient start-up current peak by temporarily raising electronically-controlled triggering threshold
02/16/2000EP0980129A2 Current transformer saturation correction using artificial neural networks
02/16/2000EP0980128A2 Undervoltage release device
02/16/2000CN2364612Y High-voltage, high-frequency lightning-arresting filter
02/16/2000CN2364608Y Overvoltage protection device for leakage protector
02/16/2000CN2364607Y Overcurrent, leakage and shock protection device
02/16/2000CN1244964A System for preventing undesired protective relay tripping actions due to coupling capacitor voltage transformer transients
02/16/2000CN1244742A High electric resistance earthing system for oil welle lectric system
02/15/2000US6025981 Flexible voltage transient detector circuit
02/15/2000US6025980 Earth leakage protective relay
02/10/2000WO2000007205A1 Device for short-circuit protection
02/10/2000WO2000007185A1 Method and apparatus of recording data in the optical recording medium
02/10/2000WO1999059224A3 Electrical light socket
02/10/2000DE19835485A1 Tripping safety mechanism for electrical conductors in motor vehicle
02/10/2000DE19834474A1 Einrichtung zum Kurzschlußschutz Means for short-circuit protection
02/10/2000DE19829802A1 Elektromagnetisches Relais Electromagnetic relay
02/09/2000EP0978921A2 Secured shutdown and delayed re-start of DC power supply in broadband network
02/09/2000EP0978919A2 High resistance grounding system for oil well electrical system
02/09/2000EP0978918A2 Circuit interrupter with arcing fault protection and PCT (positive temperature coefficient resistivity) elements for short circuit and overload protection
02/09/2000CN2363412Y All signal electronic protective circuit breaker
02/09/2000CN2363411Y Diaphragm pressure overvoltage protector
02/09/2000CN2363410Y Intelligent electric distribution switch monitoring controller
02/08/2000US6023400 Safety adapter for ungrounded electrical socket
02/08/2000CA2124496C Transient voltage protector
02/03/2000DE19834469A1 Self-test method for digital or microprocessor-controlled overload protection arrangement
02/02/2000EP0822908B1 Dc input cell for data acquisition circuits
02/02/2000EP0822907B1 Ac input cell for data acquisition circuits
02/02/2000CN2362221Y Arrester for distribution network
02/02/2000CN2362218Y Voltage automatic monitoring modular
02/02/2000CN2362217Y Improved integral electrical leakage automatic protector
02/02/2000CN1049075C Thermistor type protector
02/02/2000CN1049074C Breaker
02/01/2000US6021037 Device including a thermally protected switching transistor
02/01/2000US6021035 Apparatus for protection of power-electronics in series compensating systems
02/01/2000US6021034 Ground fault protection circuit for multiple loads with separate GFCI branches and a common neutral for the GFCI electronics
01/2000
01/27/2000WO2000004619A1 Arcing fault detection system
01/27/2000DE19833224A1 Electric load protection circuit e.g. for protecting power switch used for switching DC motors, asynchronous motors and similar devices
01/26/2000EP0974993A2 Electrical switchgear with synchronous control system and actuator
01/26/2000EP0974181A1 Improvements in transient overvoltage and lightning protection of power connected equipment
01/26/2000EP0974180A1 System comprising hot insertable/removable function units
01/26/2000CN2361021Y Full automatic phase loss protector