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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12/17/1996 | US5585705 Process for monitoring movement of closure devices which may be adjusted by motors |
12/17/1996 | US5585702 For a motor vehicle |
12/12/1996 | WO1996039740A1 Movable barrier operator having force and position learning capability |
12/12/1996 | DE19618236A1 Spannungsversorgung für mobile elektrische Geräte Power supply for mobile electric devices |
12/11/1996 | EP0748022A1 Device for the protection of electric motors against high temperatures and currents |
12/11/1996 | EP0746899A1 Switching regulator having high current prevention features |
12/11/1996 | EP0746896A1 Hybrid alternator with voltage regulator |
12/11/1996 | EP0746891A1 Electrical safety device |
12/11/1996 | EP0746684A1 Soft-start pump control system |
12/11/1996 | CN2242534Y Light chopper with protection function |
12/11/1996 | CN2242533Y Emergency protective circuit arrangement specially adapted for high voltage or low voltage generator |
12/10/1996 | US5583420 Microprocessor controller for starter/generator |
12/05/1996 | DE19534464C1 Device preventing dryout of electromagnetic oscillating-piston pump |
12/04/1996 | EP0660973B1 Protection triggering process |
12/04/1996 | EP0556379B1 Motor controller |
12/04/1996 | CN2241938Y Automatic protecting electricity economizer for three phase electric motor |
12/04/1996 | CN2241937Y Full-protector for electric motor |
12/04/1996 | CN2241936Y Multi-function three-phase protector for electric machine |
12/04/1996 | CN2241935Y Modular combined demagnetizer |
12/04/1996 | CN2241933Y Phase-sequence controller |
12/04/1996 | CN1137157A Phase-shifting transformer and protection system of phase-shifting transformer |
12/03/1996 | US5581103 Semiconductor integrated circuit device with input-protecting circuit |
11/27/1996 | EP0744807A1 DC motor current limiting method and DC motor for implementing this method |
11/27/1996 | EP0564577B1 Protection system for ac generators |
11/27/1996 | CN2241408Y Three phase motor protector |
11/27/1996 | CN2241407Y Under-voltage open-phase protector for motor |
11/27/1996 | CN2241406Y Safety three phase asynchronous motor protector |
11/27/1996 | CN2241405Y Motor integrated protector |
11/27/1996 | CN1033415C Automatic flashover protection for locomotive traction motors |
11/26/1996 | US5579195 Power stoppage minimizing systems for distribution lines and methods of using a distribution line |
11/26/1996 | US5578912 On-car motor driving apparatus and self-diagnosing and selective driving mechanisms for the same |
11/20/1996 | EP0743736A1 Process for monitoring the capacity of a rechargeable battery |
11/20/1996 | EP0662220B1 Decoupling of a high-frequency error signal from a high-frequency electromagnetic field in a large electric machine |
11/20/1996 | EP0571383B1 Battery protection system |
11/20/1996 | CN2240806Y Silicon controlled explosion-proof switch |
11/20/1996 | CN2240801Y Electric motor automatic protector |
11/20/1996 | CN2240799Y Phase-loss protector |
11/20/1996 | CN1136369A Rectifer bridge apparatus |
11/20/1996 | CN1136170A Checking device for wrong wire distribution of power supply |
11/19/1996 | US5576632 Neural network auto-associator and method for induction motor monitoring |
11/19/1996 | US5576625 Test method and apparatus for testing a protective relay system |
11/19/1996 | US5576580 DC power supply circuit |
11/13/1996 | EP0742630A1 Method of controlling the movement of an opening panel |
11/13/1996 | EP0741881A1 Integrated circuit |
11/13/1996 | CN2240209Y Multi-functional motor protector with digital indicator |
11/12/1996 | US5574611 Service interruption minimizing system for power distribution line |
11/12/1996 | US5574608 Brushless motor lock detection apparatus |
11/12/1996 | US5574387 Radial basis function neural network autoassociator and method for induction motor monitoring |
11/12/1996 | US5574352 Frequency control method for inverter and apparatus therefor |
11/12/1996 | US5574346 On and off state fault detection circuit for a multi-phase brushed or brushless DC motor |
11/12/1996 | US5574341 Compound motor limiting control circuit for controllable shunt field winding by means |
11/12/1996 | US5574320 Load drive circuit |
11/07/1996 | WO1996035253A1 Battery recharging apparatus |
11/07/1996 | WO1996035252A1 Apparatus for charging a battery |
11/07/1996 | WO1996035036A1 Auto reverse power closure system |
11/07/1996 | DE19520988C1 Fault analysis device for voltage supply appts. |
11/06/1996 | EP0740860A1 High speed overvoltage detection and protection circuit |
11/06/1996 | EP0740859A1 Electrostatic discharge circuit for high speed, high voltage circuitry |
11/06/1996 | CN2239673Y Phase sequence relay having automatic phase changing |
11/06/1996 | CN2239672Y Multifunctional thermal relay |
11/06/1996 | CN1135111A Protective circuit for charging or discharging conversion |
11/06/1996 | CN1135102A Charging terminal shortcircuit preventing circuit for battery pack |
11/05/1996 | US5572138 Method and device for determining the direction to a fault on a power transmission line |
11/05/1996 | US5571062 For a motor speed control circuit |
10/31/1996 | WO1996034450A1 Method and device for protecting regenerating resistor of servo motor for driving inverter |
10/31/1996 | DE19532753A1 Method of controlling opening and closing of motorised opening and closing part of motor vehicle, esp. sun roof |
10/30/1996 | EP0740385A2 Protection circuit for a switch mode power supply |
10/30/1996 | EP0740384A2 Startup protection for a switch mode power supply |
10/30/1996 | EP0740383A1 Device with a line connecting to an electrical distribution network through a circuit breaker, with at least one load and with an undervoltage protection |
10/30/1996 | EP0740382A1 Device with a line connecting to an electrical distribution network, with at least one load and with an overvoltage protection |
10/30/1996 | EP0740381A1 Device with a line connecting to an electrical distribution network, with a circuit breaker and with an undervoltage protection |
10/30/1996 | EP0739778A2 Power window circuit board overcurrent protection |
10/30/1996 | EP0739545A1 Circuit arrangement |
10/30/1996 | CN2239098Y Electronic adjusting apparatus with overload and short circuit protection for generator automotive vehicle and ship |
10/29/1996 | US5570260 Overvoltage protection circuit |
10/29/1996 | US5570258 Phase monitor and protection apparatus |
10/29/1996 | US5570257 Phase sequence wiring protection apparatus |
10/29/1996 | US5570256 Induction machine protection device |
10/29/1996 | US5570255 Overcurrent preventing circuit |
10/29/1996 | US5570254 Method and device for preventing excessive currents in a welding converter |
10/29/1996 | US5569966 Electric vehicle propulsion system power bridge with built-in test |
10/29/1996 | US5569550 Battery pack having under-voltage and over-voltage protection |
10/23/1996 | EP0739075A1 Power supply system |
10/23/1996 | EP0739074A2 Power source miswiring detection apparatus |
10/23/1996 | EP0738433A1 Method and device for determining the direction to a fault on a power transmission line |
10/23/1996 | EP0738432A1 Device for differentially protecting a power transformer |
10/23/1996 | EP0401299B1 A method and a system for monitoring and controlling an electric motor |
10/23/1996 | CN2238499Y Current and voltage changer for mobile converting station |
10/23/1996 | CN1134055A Precise multiangular arc relay |
10/22/1996 | US5568399 Method and apparatus for power outage determination using distribution system information |
10/22/1996 | US5568343 Circuit for protecting switching power source from overloads and shot circuits |
10/22/1996 | US5568033 On-site electric motor start-up diagnostic tool |
10/22/1996 | US5568025 Abnormally detecting device for relay |
10/17/1996 | WO1996032067A1 Motor controlled surgical system and method having positional control |
10/17/1996 | DE19514229A1 Electric drive load disconnector e.g. for tilting or hinged window casement |
10/17/1996 | CA2216209A1 Motor controlled surgical system and method having positional control |
10/16/1996 | EP0738032A2 Method for monitoring of movement of motorised adjustable objects |
10/16/1996 | EP0452417B1 Flyback current dampening apparatus |
10/16/1996 | CN2237901Y AC power electronic switch cabinet |
10/16/1996 | CN1133508A Switch type power source with protective circuit |