| 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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| 09/04/2001 | US6285165 Secondary battery protection circuit |
| 08/30/2001 | WO2001063720A1 Permanent magnet induced electric machine and method for operating such a machine |
| 08/30/2001 | WO2000039598A9 Internal unbalance detection in capacitors |
| 08/29/2001 | EP1128516A2 Method for generating an obstruction signal and obstruction detector |
| 08/29/2001 | CN2445488Y Electronic protector for motor |
| 08/29/2001 | CN2445487Y Protecter for three-phase commutator machine |
| 08/29/2001 | CN1310874A Fault data synchronization via peer-to peer communications network |
| 08/29/2001 | CN1070319C DC/DC converter with protection circuit |
| 08/28/2001 | US6281648 Thermistor actuated device for controlling the drive of a power window |
| 08/23/2001 | US20010015638 Current control circuit |
| 08/23/2001 | DE10005449A1 Overvoltage protection circuit for matrix converter based on nine power switches in 3 x 3 switch-matrix - has each semiconductor switch of bidirectional power switch provided with voltage clamp connected across collector -gate circuit |
| 08/22/2001 | EP1125339A1 Battery over-discharge protection |
| 08/22/2001 | CN2444332Y Exchanging type power supplier capable of limiting maximum peak value power output time |
| 08/21/2001 | US6278596 Active ground fault disconnect |
| 08/21/2001 | US6278314 Electric circuit |
| 08/21/2001 | US6278249 Movable barrier operator |
| 08/16/2001 | WO2001059903A1 Secondary circuit in a high or medium voltage network |
| 08/16/2001 | US20010013761 Driving device for motor-driven compressor |
| 08/15/2001 | CN2443530Y Double protecting system controller for motor |
| 08/15/2001 | CN2443524Y AC input protector |
| 08/15/2001 | CN2443523Y Miniature DC motor bidirectional movement load controller |
| 08/15/2001 | CN2443522Y Three-phase motor protector |
| 08/14/2001 | US6275393 Nonlinear current limiting precharging circuit for a capacitor connected to an output of a line-commutated power converter |
| 08/14/2001 | US6275366 Apparatus and method for distributing electrical power |
| 08/14/2001 | US6275044 Arcing fault detection system |
| 08/14/2001 | US6274947 Power window controller having function to prevent pinching |
| 08/09/2001 | WO2001058005A2 Exciter assembly telemetry |
| 08/09/2001 | US20010012984 Method and system for consolidating phase current samples |
| 08/09/2001 | US20010011650 Device for short-circuit protection |
| 08/09/2001 | DE10101128A1 Vorrichtung zur Verhinderung einer unzulässigen Drehrichtung eines elektrischen Antriebs A device for preventing an improper direction of rotation of an electric drive |
| 08/09/2001 | DE10003360A1 Schaltungsanordnung für ein Hochspannungs-Freileitungsnetz mit Reihenkondensatoren Circuit arrangement for a high-voltage overhead power lines with series capacitors |
| 08/08/2001 | EP1122853A2 Method and apparatus for protection of batteries |
| 08/08/2001 | EP1122848A1 Improved device protecting against internal faults in a three-phase transformer |
| 08/08/2001 | EP1121740A1 Device for monitoring the measuring system of an electric drive |
| 08/08/2001 | CN2442436Y Electromalgnetic safety protector for high voltage switch equipment |
| 08/08/2001 | CN2442435Y Motor prector only detecting two phase current |
| 08/02/2001 | DE10002242A1 Verfahren zum Schutz eines Elektromotors vor thermischer Überlastung A method for protecting an electric motor against thermal overload |
| 08/01/2001 | EP1120805A2 Current-carrying control device and electric power steering apparatus |
| 08/01/2001 | EP1119891A1 A protective relay-based monitoring system of dc power within an electric power substation |
| 08/01/2001 | CN1306330A Microcomputer bus protection using virtual current as important element of protective criterion |
| 08/01/2001 | CN1306329A Method and equipment for instaneous fault detecting circuit |
| 07/31/2001 | US6269011 Power supply system having semiconductor active fuse |
| 07/31/2001 | US6268989 Residential load center with arcing fault protection |
| 07/31/2001 | US6268986 Motor control unit |
| 07/31/2001 | US6268714 Voltage limiting circuit connected in parallel with a battery set and including a series-connected impedance which permits linear adjustments |
| 07/31/2001 | US6268708 Control apparatus for electric power steering system |
| 07/26/2001 | WO2001054247A1 Coaxial surge protector having thermal fail-safe shunt |
| 07/26/2001 | WO2001054246A1 Method for protecting an electrical motor against thermal overload |
| 07/26/2001 | US20010009494 Over current protection circuit of semiconductor switching device |
| 07/26/2001 | US20010009363 Method of providing overvoltage protection |
| 07/26/2001 | US20010009360 Current limit circuit of inverter refrigerator |
| 07/26/2001 | US20010009356 Automotive convertible top system |
| 07/26/2001 | DE19964097A1 Overvoltage protection circuit for electronic unit onboard automobile has integrator receiving switch signal from overvoltage indicator for opening switch to prevent overheating |
| 07/26/2001 | DE19962378A1 Component movement direction monitoring method, uses detection of unsymmetrical magnetic field generated in component movement direction |
| 07/26/2001 | DE10001459A1 Electric handtool e.g. drill or screwdriver, has drive motor provided with motor reversal device with detection of angular position of motor brush bridge and operating switch position for safe operation |
| 07/25/2001 | EP1118153A1 Method and apparatus for controlling the exitation of a synchronous generator driven by a turbine |
| 07/25/2001 | CN2440280Y Domestic electricity-using protector |
| 07/25/2001 | CN1305255A Power supply control circuit of digital electronic device and power supply method |
| 07/25/2001 | CN1068996C Switching power source |
| 07/25/2001 | CN1068993C Electric motor with means for preventing thermal overload |
| 07/24/2001 | US6265891 Apparatus for detecting a coil short circuit in an electric motor |
| 07/24/2001 | US6265846 Active bypass circuit for extending energy capacity and operational life of a multi-cell battery |
| 07/19/2001 | WO2001052391A1 Exciter and electronic regulator for superconducting rotating machinery |
| 07/18/2001 | EP1116313A1 Method and arrangement for electrically controlling and regulating the movement of an electrically operated aggregate of a motor vehicle |
| 07/18/2001 | CN2439744Y Three phase voltage-limiting protector |
| 07/18/2001 | CN2439737Y Device for preventing house keeping electric appliance from being struck by lightning |
| 07/18/2001 | CN1068734C Microprocessor based motor control system with phase difference detection |
| 07/18/2001 | CN1068732C Motor start-up circuit |
| 07/12/2001 | WO2001050568A1 Method and circuit for using polarized device in ac applications |
| 07/11/2001 | CN2439133Y Motor protector |
| 07/11/2001 | CN1303156A Relay protection method based on excitation impedance variation to judge excitating surge current of transformer |
| 07/11/2001 | CN1303155A Relay protection method based on excitation impedance variation to judge over-excitation of transformer |
| 07/11/2001 | CN1303154A Relay protection method for electric power system with low-voltage distribution circuit and equipment |
| 07/11/2001 | CN1303153A Three-phase four-line phase losing protecting device with speech alarm |
| 07/10/2001 | US6259972 Method for processing and disseminating utility outage information |
| 07/10/2001 | US6259587 Direct current motor safety circuits for fluid delivery systems |
| 07/05/2001 | US20010006747 Safety device for electrical storage cell battery and battery equipped with the device |
| 07/05/2001 | US20010006447 Protection circuit for a power supply unit and respective power supply unit |
| 07/05/2001 | DE19964049A1 Schutzschaltung für ein Netzteil sowie diesbezügliches Netzteil Protection circuit for a power supply and power supply to this effect |
| 07/05/2001 | DE19963181A1 Resistive current limiter arrangement for DC or AC |
| 07/05/2001 | DE19960532A1 Method of controlling operation of variable speed gearing involves converting alternating current of transmission line inputted via exciting transformer into direct current |
| 07/04/2001 | EP1113558A2 Relay with overcurrent protection |
| 07/04/2001 | EP1113557A2 Protection circuit for a power supply unit and respective power supply unit |
| 07/04/2001 | EP0990293B1 Method for detecting phase failure in an asynchronous machine |
| 07/04/2001 | CN2438254Y Safety circuit protector of electric block |
| 07/04/2001 | CN1302466A Protection unit for A.C. motor |
| 07/04/2001 | CN1302464A Multiple communications protocols in a protective relay |
| 07/04/2001 | CN1302106A Protective circuit of power unit and relative power unit |
| 07/03/2001 | US6256181 Fan drive device |
| 07/03/2001 | CA2248617C Window opening and closing apparatus |
| 06/28/2001 | DE19959793A1 Differentialschutzverfahren Differential protection method |
| 06/28/2001 | DE19959776A1 Differentialschutzverfahren Differential protection method |
| 06/27/2001 | EP1111752A2 Instantaneous fault detection circuit method and apparatus |
| 06/27/2001 | EP1111751A1 Safety device for electric battery cells and battery provided with such a device |
| 06/27/2001 | EP1111750A1 Protective device for electrical faults |
| 06/27/2001 | EP1111635A2 Window control apparatus |
| 06/27/2001 | EP1110773A2 Driving device for motor-driven compressor |
| 06/27/2001 | EP1110302A1 Method for limiting an electric current passing through an electrical component and limiting device |
| 06/27/2001 | EP1110292A1 Electric circuit |
| 06/27/2001 | EP1110291A1 Drive device and method for moving a vehicle part |