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

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)
12/1997
12/09/1997	US5696660 Line current protection circuit for use with a PCMCIA-architecture modem card
12/09/1997	US5696659 Overcurrent protective circuit and semiconductor device
12/09/1997	US5696391 Overload protection circuit
12/04/1997	WO1997045933A2 A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine
12/04/1997	WO1997045926A2 An electric high voltage ac machine
12/04/1997	WO1997045921A2 Electromagnetic device
12/04/1997	WO1997045907A2 Rotating electrical machine plants
12/04/1997	WO1997045848A1 A dc transformer/reactor
12/04/1997	WO1997045847A1 Transformer/reactor
12/04/1997	CA2256535A1 Rotating electrical machine plants
12/04/1997	CA2256469A1 Transformer/reactor
12/04/1997	CA2256347A1 Electromagnetic device
12/04/1997	CA2255742A1 A dc transformer/reactor
12/04/1997	CA2255739A1 An electric high voltage ac machine
12/03/1997	EP0810707A2 Earth leakage-current protection system
12/03/1997	EP0810706A2 Voltage supply network
12/03/1997	EP0809874A1 Energy validation arrangement for a self-powered circuit interrupter
12/03/1997	EP0809808A1 Method of determining an earth-fault current
12/03/1997	CN2269662Y Power saving and phase-lose protector
12/03/1997	CN2269661Y Electronic temperature controlled power saving protector for refrigerator
12/03/1997	CN2269660Y Energy saving protector for household electric appliance
12/03/1997	CN1166709A Overcurrent trip device
12/02/1997	US5694285 Overcurrent automatic prevention apparatus having an individual fault display and permanent ground functions
12/02/1997	US5694281 Zero sequence voltage-polarized directional element for protective relays
12/02/1997	US5694280 Resettable latch mechanism
11/1997
11/27/1997	DE19620575A1 Circuit arrangement for adjustment of parameter of electronic instrument, such as time relay, engine cut=out switch
11/26/1997	EP0809346A1 Inverter apparatus for supplying a brushless DC motor with drive power
11/26/1997	EP0809267A2 Circuit breaker incorporating trip coil as shunt resistor in parallel with current limiting polymer
11/26/1997	CN2269020Y Electric power monitor
11/26/1997	CN2269018Y High speed safeguard with failure alarm
11/26/1997	CN2269013Y Automatic phase-off protector
11/26/1997	CN2269012Y Multifunctional relay protector for overvoltage
11/26/1997	CN2269011Y Repeatable cut-off unit of circuit breaker
11/26/1997	CN2269010Y Distribution arrangement of A.C. power supply circuit
11/26/1997	CN1166069A Adaptive polarizing memory voltage time constant
11/25/1997	US5691871 Test circuit for electrical switching device
11/25/1997	US5691870 Circuit for monitoring and disabling power supply signals to a microprocessor in a computer system utilizing secondary voltage regulators
11/25/1997	US5691869 Low cost apparatus for detecting arcing faults and circuit breaker incorporating same
11/25/1997	US5691689 Electrical circuit protection devices comprising PTC conductive liquid crystal polymer compositions
11/25/1997	US5691643 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
11/20/1997	DE19619932A1 Electromotor drive, esp. for vehicle window
11/19/1997	EP0807948A2 Circuit for responding to a trailing edge
11/19/1997	EP0807874A2 Electrical apparatus having programmable settings provided by a single dip switch and a multiposition selector switch
11/19/1997	EP0706726B1 Ground fault protection for electrothermal de-icing applications
11/19/1997	CN2268342Y Variable-frequency speed regulator
11/19/1997	CN2268328Y Device for recording and controlling working parameters of electric pump and motor
11/18/1997	US5689397 Arrangement for disconnecting branches of a low voltage supply network under short circuit conditions
11/18/1997	US5689395 Electrical system
11/13/1997	DE19654901A1 Relay for HF instruments e.g. signal generator, spectrum analyser etc.
11/13/1997	DE19647316A1 Relay for HF instruments e.g. signal generator, spectrum analyser etc.
11/13/1997	CA2205102A1 Electrical apparatus having programmable settings provided by a single dip switch and a multiposition selector switch
11/12/1997	EP0806825A2 Differential current protection
11/12/1997	EP0806071A1 Overvoltage protector
11/12/1997	CN2267571Y Loss-free and resistor type arrangement for limiting excess current at short-circuit emergency
11/12/1997	CN2267569Y Three phase electronic blade switch for preventing against phase interruption
11/12/1997	CN2267566Y Full automatic emergency protective circuit arrangement
11/12/1997	CN2267565Y Energy-saving type electrical leakage protector
11/12/1997	CN2267564Y Arrangement for protecting phase interruption
11/12/1997	CN2267563Y Voltage relay for integrated circuit
11/12/1997	CN2267562Y Arrangement for protecting automobile circuit
11/12/1997	CN2267548Y Complete cut-off type over-voltage protective socket for remote control color TV set
11/12/1997	CN2267547Y Safety socket which can be automatically cut off when power interruption
11/11/1997	US5687049 Method and circuit for protecting power circuits against short circuit and over current faults
11/06/1997	DE19712544A1 Circuit-breaker and circuit-breaker circuit for cutting off motor vehicle battery supply to load in the event of collision
11/06/1997	DE19710480A1 Cut-off display mechanism for semiconductor switching element
11/06/1997	DE19616542A1 Light emitting diode (LED) type battery monitor for multi-block batteries
11/05/1997	EP0805538A2 Overcurrent and short-circuit protection
11/05/1997	CN2266829Y Portable multifunction efficient energy-saving charger
11/05/1997	CN2266795Y Universal contact silent operation leakage protector
11/05/1997	CN1164139A Electronic trip device comprising power supply device
11/05/1997	CN1164138A Emergency circuit protector
11/04/1997	US5684663 Protection element and method for protecting a circuit
11/04/1997	US5684441 Reverse power protection circuit and relay
10/1997
10/30/1997	DE19712548A1 Overcurrent trip/release device for protection of electrical circuits
10/29/1997	CN2266213Y Electronic thermorelay
10/29/1997	CN2266212Y Automatic lightning stroke protector for power supply
10/29/1997	CN2266211Y Warning signal acquisition device for distributing frame
10/29/1997	CN2266131Y Multiplex imput central control prepayment device for KWH meter
10/28/1997	US5682287 Digital circuit interrupter shunt trip accessory module
10/28/1997	US5682101 Arcing fault detection system
10/23/1997	DE19615048A1 Semi-automatic self-monitoring fault-current circuit-breaker e.g. for main current conducting lines
10/23/1997	DE19615047A1 Socket entrance integrated with fault current circuit breaker in common housing
10/22/1997	EP0802602A2 Apparatus for detecting and responding to series arcs in AC electrical systems
10/22/1997	EP0801832A1 Detection and isolation circuit for a failed bridge power rectifier and an electrical system employing same
10/22/1997	EP0691003A4 Low cost active power line conditioner
10/22/1997	CN2265616Y Domestic electric protector for preventing electricity fraudulent use and leakage, limiting electricity and electricity cutting-off
10/22/1997	CN2265615Y Overcurrent relay
10/22/1997	CN2265541Y Single phase multi-function automatic IC card electric meter
10/21/1997	US5680324 Communications processor for electric power substations
10/21/1997	US5680287 In-line cord ground fault circuit interrupter
10/16/1997	WO1997037873A1 Device for interrupting the flow of current in a cable
10/15/1997	CN2265016Y Three-phase protector for phase interruption
10/15/1997	CN2265015Y Three-phase protector
10/15/1997	CN1162209A Overvoltage cut-off circuit with special switchboard branch line direct through communication line
10/15/1997	CN1036170C Main motor driving circuit of toaster
10/15/1997	CN1036169C Short circuit production method for illumination and signal power-supply line of coal mine well
10/09/1997	WO1997037416A1 Process for detecting abutment and blocking in an electric motor
10/09/1997	WO1997037237A1 Testing electrical installations
10/09/1997	DE19619629C1 Automatic monitoring method and device for fault-current circuit breakers
10/08/1997	EP0800251A1 Protection for a three-phase distribution transformer immersed in a dielectric fluid

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