Patents
Patents for H02H 5 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection (5,568)
07/1999
07/14/1999CN2329108Y Electricity cut-off protector when water free
07/13/1999US5923520 Demagnetizing circuit and current limiting device
07/06/1999US5918982 Temperature detecting using a forward voltage drop across a diode
07/01/1999WO1999033155A1 Method and system for series fault protection
06/1999
06/30/1999EP0926796A2 Protection apparatus for a storage battery
06/26/1999CA2256906A1 Protection apparatus for a storage battery
06/23/1999CN2325908Y Multi-function automatic protector for protecting electric appliance from being fired
06/17/1999WO1999030400A1 Fault sensing wire and alarm apparatus
06/17/1999CA2313092A1 Fault sensing wire and alarm apparatus
06/16/1999EP0923180A2 Electric installation switch
06/02/1999EP0920242A1 Circuit arrangement to protect an electrical component against an electrical potential
06/02/1999DE19819472A1 Monitoring device for oil-filled electrical transformer
05/1999
05/26/1999CN1043501C Personal care apparatus comprising capacitive on/off switch
05/18/1999US5905645 Thermally aided power sharing of power supplies with or without an external current share line
05/12/1999EP0915550A1 Electric motor with means for preventing thermal overload
05/12/1999CN2318639Y Earth monitor for electrostatic earthed system
05/12/1999CN1216412A Electric motor with means for preventing thermal overload
05/06/1999WO1999022249A1 Method and measuring unit for verifying the presence of a neutral conductor connection between a four wire system and a measuring unit
05/04/1999US5900538 Monitoring of decomposition gases in transformers by referencing volume or pressure to temperature
04/1999
04/28/1999CN1215508A Device including a thermally protected switching transistor
04/27/1999US5898557 Switching apparatus
04/27/1999US5898556 Protection system for a three-phase distribution transformer insulated in a liquid dielectric
04/27/1999US5898377 Smoke detecting apparatus and method
04/22/1999WO1999019895A1 Circuit arrangement and process for operating a safety fuse
04/22/1999DE3844958C2 Power semiconductor element on substrate section
04/21/1999EP0910227A2 Flexible heating panel and control unit
04/20/1999US5895989 Power supply unit and connector connection failure detection method
04/15/1999DE19744765A1 Fuse element circuit for automobile electrics
04/13/1999US5894394 Intelligent power switch and switching apparatus
04/13/1999US5894393 Aircraft ground power loss of neutral and over-voltage detector
04/13/1999US5894174 Protection circuit and method for an electromagnetic interference suppression system
04/07/1999EP0906484A1 Electric switch with static current monitoring
04/01/1999WO1998056095A3 Overcurrent protection circuit
03/1999
03/25/1999DE19741780A1 Conductor break detection method for inductive sensor user to detect rotating shaft speed
02/1999
02/25/1999WO1999009574A1 Fuse element for electrical systems and a method and circuit for operating a fuse element
02/25/1999DE19832966A1 Control circuit for electric window drive
02/24/1999EP0898428A2 Current limiting device
02/24/1999EP0898350A1 Circuit for detecting an earthed metallic element
02/18/1999DE19735546A1 Fuse element for automobile current circuit
02/17/1999EP0896757A1 Device including a thermally protected switching transistor
02/17/1999CN2308179Y Fire-protection A. C. low-voltage distribution cabinet
02/09/1999US5870267 Semiconductor integrated circuit device with overheating protector and method of protecting semiconductor integrated circuit against overheating
02/09/1999CA2199189C System for reducing disaster damage
02/03/1999CN2306602Y Temp.-controlled power-off protection alarm
02/03/1999CN1207211A Socket
01/1999
01/28/1999WO1999004474A1 Electric installation protecting means
01/28/1999CA2295668A1 Electric installation protecting means
01/19/1999US5862030 To provide overtemperature/mechanical damage sensing of electrical conductor
01/19/1999US5862029 Resettable immersion detecting circuit interrupter (IDCI)
01/12/1999US5859590 Fault sensor device
01/07/1999WO1999000882A1 Method and device for managing an electronic component with complementary mos transistors functioning under radiation
01/07/1999EP0818077A4 Hybrid alternator
01/07/1999DE19826410A1 Insulation and fault current monitoring method for electrical AC network
12/1998
12/23/1998WO1998058432A1 Method and device for monitoring insulation and fault current in an electrical alternating current network
12/16/1998EP0884818A1 Method for driving at least one IGBT transistor able to permit its functioning under irradiation
12/11/1998CA2240119A1 Over-temperature sensor cable and electrical cord with over-temperature protection
12/10/1998WO1998056095A2 Overcurrent protection circuit
12/09/1998EP0883222A1 Self-protected trip device for immersed electrical transformer
12/09/1998CN1201246A Self-protection tripping mechanism for subway electric transformer
12/01/1998US5844493 Electromechanical switching device and arrangement with several switching devices
11/1998
11/25/1998EP0880086A1 A control circuit and method for a temperature sensitive device
11/25/1998EP0692154B1 Clocked current supply
11/24/1998US5841617 Electrical safety device with conductive polymer sensor
11/17/1998US5838187 Integrated circuit thermal shutdown system utilizing a thermal sensor
11/10/1998US5835786 Computer apparatus with monitoring circuit for displaying fan working condition
11/10/1998US5835553 Semiconductor integrated circuit having a digital temperature sensor circuit
11/10/1998US5835320 Digital circuit interrupter thermal protection circuit
11/04/1998EP0875082A1 Socket
10/1998
10/29/1998DE19716963A1 Verfahren zur Ermittlung des Ortes einer Teilentladung Method for determining the location of a partial discharge
10/28/1998EP0874436A2 Hand machine-tool with protection device
10/28/1998CN2296085Y Electric heating wire with overheating protector
10/28/1998CN1197277A Realizing method and device for protecting and warning when resistance of security device losing efficacy
10/27/1998US5828188 Over temperature protection circuit having plural thermal components
10/22/1998WO1998047213A1 Method for determining the location of a partial discharge
10/15/1998WO1998045920A1 Electrical safety device with conductive polymer sensor
10/15/1998CA2286359A1 Electrical safety device with conductive polymer sensor
10/13/1998CA2115357C Overtemperature sensing and signaling circuit
10/13/1998CA2057650C Fail safe obstruction detector for door openers
10/07/1998EP0869598A1 Method for making effective use of the thermal loading limit of high-voltage overhead power lines and cables
10/06/1998US5818122 Power supply circuit breaking apparatus for motor vehicle and power supply circuit breaking system for motor vehicle
09/1998
09/29/1998US5814954 Method of and an apparatus for protecting a regenerative resistor in an inverter for driving a servomotor
09/16/1998EP0864066A1 Lamp with safety features
09/11/1998WO1998039753A1 System for reducing disaster damage
09/08/1998US5805396 Protection circuit of drive system for motor
09/01/1998US5801914 Electrical safety circuit with a breakable conductive element
09/01/1998US5801912 Circuit interrupting device
09/01/1998US5801503 Temperature-compensating overcurrent detection circuit for DC motor
08/1998
08/27/1998DE19707139A1 Opto-electronic gas production detection and measurement arrangement
08/27/1998DE19704861A1 Temp. measurement arrangement, e.g. for contactless switch
08/26/1998EP0860926A2 Thermally aided power sharing of power supplies with or without an external current share line
08/26/1998CN2289245Y Device for avoiding or indicating fraudulent use for watt-hour meter
08/25/1998US5798667 Method and apparatus for regulation of power dissipation
08/20/1998DE19745040A1 Temp. measurement arrangement, e.g. for contactless switch
08/13/1998WO1998035441A1 Controllable switching device, system and method for operating a switching device, in particular for semiconductor power switches
08/13/1998WO1998035440A1 Arrangement and method for measuring a temperature
08/13/1998WO1998035419A1 Circuit breaker for disconnecting an electrical apparatus from electrical network
08/05/1998EP0857012A1 Apparatus for monitoring ventilation of integrated circuits in electronic apparatus
08/05/1998CN1189711A Sensitively cut-off protector
07/1998
07/28/1998US5786975 Electronic switching circuits
07/22/1998EP0759220B1 Detector for monitoring the integrity of a ground connection to an electrical appliance
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