| 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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| 08/29/2002 | US20020117982 Method for controlling an electric motor |
| 08/29/2002 | DE10201467A1 Multifunktionales Hybrid Schütz Multi-functional hybrid contactor |
| 08/28/2002 | EP1234367A1 Device and method for detecting a jamming situation at moving surfaces in a motor vehicle |
| 08/28/2002 | EP1234366A2 System for power transformer differential protection |
| 08/28/2002 | EP1234365A2 Apparatus and method for detecting a short circuit in a lighting system |
| 08/28/2002 | EP0877948B1 Method of detecting a fault in a monitored section of an electric transmission line using distance protection techniques |
| 08/28/2002 | CN2508442Y Automatic low-voltage power supply protection and recovery output circuit |
| 08/28/2002 | CN1366370A Device and method for detecting circuit exception of power supply converter and protecting it |
| 08/27/2002 | US6442493 Method of detecting a fault in a monitored section of an electric transmission line using distance protection techniques |
| 08/27/2002 | US6442010 Differential protective relay for electrical buses with improved immunity to saturation of current transformers |
| 08/27/2002 | US6441709 Device for short-circuit protection |
| 08/27/2002 | US6441556 Integrated fault protection for switched electronic systems for satellite applications |
| 08/22/2002 | WO2002065609A1 Overload current protection device using magnetic impedance element |
| 08/22/2002 | WO2002065608A1 Overload current protection device using magnetic impedance element |
| 08/22/2002 | US20020116092 System for protecting and controlling substation main circuit components |
| 08/22/2002 | US20020114115 Semiconductor device |
| 08/22/2002 | US20020113599 Apparatus and method for cooling power transformers |
| 08/22/2002 | US20020113574 Charge and discharge controller |
| 08/21/2002 | EP0862808B1 An installation for power transmission by means of high-voltage direct current, comprising device for detection of a permanent ground fault |
| 08/21/2002 | CN1365172A Uniterruption power supply device with environment inspection function |
| 08/21/2002 | CN1089426C Control device for refrigerator |
| 08/20/2002 | US6438505 Device for monitoring the speed of rotation of an electric motor and centrifuging apparatus equipped with such a device |
| 08/20/2002 | US6437963 Method and apparatus for controlling power supplied to an electrostatic device |
| 08/20/2002 | US6437530 Method for electronic surveillance and control of the opening and closing procedure for electrically operated units |
| 08/15/2002 | WO2002063739A1 Protection circuit-equipped secondary battery |
| 08/15/2002 | US20020110371 Rotary electrical hand-tool device and startup safety routine |
| 08/15/2002 | US20020109952 High voltage battery cutout circuit for a motor vehicle electrical system |
| 08/15/2002 | US20020109486 Power source circuit |
| 08/15/2002 | US20020109484 Battery state monitoring circuit |
| 08/15/2002 | US20020109483 Charge/discharge control circuit and a charging-type power-supply unit |
| 08/15/2002 | US20020109474 Motor control device |
| 08/15/2002 | US20020109473 Motorized actuator with a variable stall level |
| 08/14/2002 | EP1230722A1 Synchronous motor with an electronic control for adjustment devices in motor vehicles and method for controlling them |
| 08/14/2002 | DE10104893A1 Schiffs-Generatorschutz- und Synchronisiergerät Ship generator protection and synchronization |
| 08/14/2002 | DE10104892A1 Schiffs-Elektrosystem Marine electrical system |
| 08/14/2002 | DE10103310A1 Sicherheitsschaltung für Drehstromgeräte und-anschlüsse Safety circuit for three-phase appliances and connections |
| 08/14/2002 | DE10102235A1 Bürstenlose Gleichstrommaschine Brushless DC machine |
| 08/14/2002 | CN2506008Y Three phase motor fuse blowout phase protective device |
| 08/13/2002 | US6434505 Method for determining the instantaneous winding temperature of the stator winding of a three-phase AC motor, in particular a pole-changeable asynchronous motor |
| 08/08/2002 | WO2002061933A1 Electric circuit arrangement |
| 08/08/2002 | WO2002061912A1 Electrical system for a ship |
| 08/08/2002 | WO2002061907A1 Protection systems for power networks |
| 08/08/2002 | WO2002061906A1 Appliance for protecting a boat generator and for synchronisation |
| 08/08/2002 | WO2002061905A2 Aircraft applicable ground fault circuit interrupter |
| 08/08/2002 | US20020106945 Compressor terminal fault interruption method and apparatus |
| 08/08/2002 | US20020105767 Apparatus and method for providing overcurrent protection for switch-mode power supplies |
| 08/08/2002 | US20020105765 Apparatus and method of detecting ground fault of solar power generation system |
| 08/08/2002 | US20020105764 Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof |
| 08/08/2002 | US20020105763 Motor-driven curtain assembly and motor control device therefor |
| 08/08/2002 | US20020105512 Liquid crystal device driver circuit for electrostatic discharge protection |
| 08/08/2002 | US20020105239 Fail-safe mechanism for dc-drive |
| 08/07/2002 | EP1229629A2 Apparatus and method of detecting ground fault of solar power generation system |
| 08/07/2002 | EP1229628A2 Control method and device for ensuring mechanical safety to a gate or door having at least one electrically operated wing |
| 08/07/2002 | CN2504814Y Intelligent safety dynamo |
| 08/07/2002 | CN1362766A Electrospark inhibitor circuit for protecting contact terminal of operation lamp bulb |
| 08/06/2002 | US6430066 Electric power system having series connected capacitor |
| 08/01/2002 | US20020101698 Aircraft applicable ground fault circuit interrupter |
| 08/01/2002 | US20020101239 Magnet arrangement comprising an actively shielded superconducting magnet coil system and an additional current path for stray field suppression in case of a quench |
| 08/01/2002 | US20020101210 Collision monitoring system |
| 08/01/2002 | DE10105201A1 Elektrische Schaltungsanordnung Electrical circuitry |
| 07/31/2002 | EP1227564A2 Charge/Discharge protection circuit for a rechargeable battery |
| 07/31/2002 | EP1227561A2 Rotatable electric hand tool with starting security system |
| 07/31/2002 | EP1226479A1 Method of regulating the electrical voltage and device for carrying out said method |
| 07/31/2002 | CN2503666Y Linear power-supply adapter |
| 07/31/2002 | CN2503653Y Universal overcurrent relay protecter |
| 07/31/2002 | CN1361935A Method and apparatus for detecting a failed thyristor |
| 07/30/2002 | US6426604 Power window controlling device |
| 07/30/2002 | US6426603 Motor controller having automatic permanent single phase wiring detection |
| 07/25/2002 | WO2002058203A1 Brushless dc machine |
| 07/25/2002 | US20020097543 Charge/discharge protection circuit for a rechargeable battery |
| 07/25/2002 | US20020097542 Electric distribution device, installation comprising such a device, and electrical protection process |
| 07/25/2002 | DE10139100A1 Leistungshalbleiterbauelement, Leistungszweig und Wechselrichterschaltung Power semiconductor device, power branch and inverter circuit |
| 07/25/2002 | DE10103142A1 Electric tool rotating apparatus and safety starting routine has microcontroller to disconnect motor drive to tool if threshold exceeded |
| 07/24/2002 | EP1225673A1 Electrical power distribution device, installation comprising such a device and method for electrical protection |
| 07/24/2002 | EP1051787B1 Method for symmetrizing asymmetric faults |
| 07/24/2002 | CN2502448Y Controller for diesel-driven generator |
| 07/24/2002 | CN1088275C Recharging type power-supply unit |
| 07/23/2002 | US6424511 Automotive battery disconnect device |
| 07/23/2002 | US6424266 Apparatus for preventing thermal damage to an electrical power transformer |
| 07/18/2002 | US20020093774 Multi-functional hybrid contactor |
| 07/18/2002 | US20020093306 Pump controller |
| 07/18/2002 | DE10151319A1 Protection for electrical supply systems by directional comparison, involves isolating defect points in very small sections of sound network independently of network operating method |
| 07/17/2002 | EP1223652A1 Method of locating a fault in a power supply network |
| 07/16/2002 | US6420855 Vehicular ac generator having voltage control unit |
| 07/16/2002 | US6420842 Exciter and electronic regulator for rotating machinery |
| 07/11/2002 | WO2002054558A1 Medium voltage power factor controlled switchboard |
| 07/11/2002 | US20020089802 Distribution line fault detector and communications module |
| 07/10/2002 | EP1221751A2 Motor driver protector |
| 07/10/2002 | CN2500011Y PLC controller of 10KV line failure automatic cut-off device |
| 07/09/2002 | US6418385 Method for determining the location of a partial discharge |
| 07/09/2002 | US6417637 Movable barrier operator |
| 07/09/2002 | US6417579 Electrical system with security battery disconnection |
| 07/09/2002 | CA2093242C Brushless motor control system |
| 07/04/2002 | US20020085397 Power converting apparatus, control method therefor, and power generation system |
| 07/04/2002 | US20020085330 Quick responding instantaneous trip system |
| 07/04/2002 | US20020085325 System interconnection apparatus and connection method thereof |
| 07/04/2002 | US20020085324 Motor driver fault protector |
| 07/04/2002 | US20020084759 Movable barrier operator having force and position learning capability |
| 07/03/2002 | EP1220411A1 A medium voltage power factor controlled switchboard |
| 07/03/2002 | CN2498775Y Phase-off protector for power supply of multiple pump sets frequency varying water supplier |