| 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) |
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| 01/12/1999 | US5859756 Automatic power line monitor and controller system |
| 01/12/1999 | CA2132203C Phase selection for ground fault |
| 01/07/1999 | EP0889569A2 Installation apparatus |
| 01/07/1999 | EP0888662A2 Electromagnetic device |
| 01/07/1999 | EP0888661A2 An electric high voltage ac machine |
| 01/07/1999 | EP0888628A1 Transformer/reactor |
| 01/07/1999 | EP0888627A1 A dc transformer/reactor |
| 01/07/1999 | EP0888558A1 Method of calibrating the trip point of an overload relay |
| 01/07/1999 | DE19826410A1 Insulation and fault current monitoring method for electrical AC network |
| 01/07/1999 | DE19723130A1 Leakage current display arrangement for electrical conductors in house |
| 01/05/1999 | US5856904 Voltage and current based control and triggering for isolator surge protector |
| 01/05/1999 | US5856903 Matching overcurrent characteristic curves |
| 01/05/1999 | US5856902 Earth leakage breaker |
| 01/05/1999 | US5856751 Method and apparatus for monitoring an alternating signal |
| 01/05/1999 | US5856711 Power-supply distributor for use in vehicles |
| 01/05/1999 | CA2115665C Microprocessor watch-dog monitor for electronic trip units |
| 01/05/1999 | CA2077859C Device for protecting power supply circuit |
| 12/30/1998 | WO1998059401A1 Antisqueeze protection |
| 12/30/1998 | EP0887904A2 Safety method and device for full-voltage power supply to a user apparatus only when required, and control assembly comprising such a safety device |
| 12/30/1998 | EP0886903A1 Power dissipation limiter for high frequency switch |
| 12/29/1998 | US5854731 Electrical apparatus |
| 12/29/1998 | US5854590 For an electric power supply network |
| 12/29/1998 | US5854555 Method and apparatus for detecting an abnormal current in automotive wiring harnesses |
| 12/29/1998 | US5853908 Protective device for secondary batteries |
| 12/24/1998 | DE19826028A1 Detecting abnormalities in cables used for automobile equipment |
| 12/24/1998 | DE19726639A1 Electronic over-current release for power switch |
| 12/23/1998 | WO1998058432A1 Method and device for monitoring insulation and fault current in an electrical alternating current network |
| 12/23/1998 | EP0815630B1 Electrical differential protection apparatus with a test circuit |
| 12/23/1998 | CN2301805Y Electric load rated safety automatic controller |
| 12/23/1998 | CN1202752A Ground fault protecting apparatus and method for solar power generation and solar power generation apparatus using apparatus and method |
| 12/23/1998 | CN1041370C Parallel and series protective module |
| 12/22/1998 | US5852538 Power element driving circuit |
| 12/17/1998 | WO1998057416A1 A method for communication between a low potential level and a valve located on high voltage potential in a high voltage converter station as well as a device for such a communication |
| 12/17/1998 | DE19725001A1 Electrical installation switch especially line protection circuit |
| 12/16/1998 | EP0884817A2 Ground fault protecting apparatus and method for solar power generation and solar power generation apparatus using the apparatus and method |
| 12/16/1998 | EP0774175A4 Movable barrier operator having force and position learning capability |
| 12/16/1998 | CN2301025Y Overvoltage protection external wire switching off device for main wire distribution frame |
| 12/16/1998 | CN1202268A Electrical switch |
| 12/16/1998 | CA2237517A1 Ground fault circuit interrupter with enhanced range |
| 12/10/1998 | WO1998056095A2 Overcurrent protection circuit |
| 12/10/1998 | WO1998056014A1 Circuit protection devices |
| 12/10/1998 | WO1998055928A1 Managing an information retrieval problem |
| 12/10/1998 | DE19722898A1 Ferngesteuerte Überwachung eines elektronischen Überstromauslösers Remote monitoring of an electronic overcurrent release |
| 12/10/1998 | CA2539704A1 Overload protection circuit for a power supply |
| 12/09/1998 | EP0806071B1 Overvoltage protector |
| 12/09/1998 | EP0660789B1 Container for a hanger-supported garment |
| 12/09/1998 | CN2300187Y Alarm fuse |
| 12/09/1998 | CN2300186Y Multi-functional power switch |
| 12/09/1998 | CN1201561A Overcurrent protection circuit |
| 12/09/1998 | CN1201560A Overcurrent protection circuit |
| 12/08/1998 | US5847915 Static isolator |
| 12/08/1998 | US5847909 Safety-enhanced transformer circuit |
| 12/06/1998 | CA2207118A1 Power dissipation limiter for high frequency switch |
| 12/03/1998 | WO1998054810A1 Remote-control monitoring of an electronic overcurrent trip |
| 12/02/1998 | EP0881733A1 Valve overcurrent protection in electric power transmission plant |
| 12/02/1998 | EP0881732A2 Apparatus for RMS current approximation |
| 12/02/1998 | CN2299414Y Intelligent electronic charger |
| 12/02/1998 | CN2299412Y Energy saving overcurrent protecting device |
| 12/02/1998 | CN1200844A Overcurrent protection circuit |
| 12/02/1998 | CN1200589A Photovoltaic power generation apparatus |
| 12/01/1998 | US5844759 Electrical shock protection apparatus for an electrical appliance |
| 12/01/1998 | US5844493 Electromechanical switching device and arrangement with several switching devices |
| 12/01/1998 | US5844326 Managed electrical outlet for providing rank-ordered over-current protection |
| 12/01/1998 | CA2143264C Zero phase sequence current filter with adjustable impedance |
| 11/25/1998 | EP0880213A1 Earth-leakage detection circuit |
| 11/25/1998 | EP0880159A2 Current-limiting switch |
| 11/25/1998 | EP0776539A4 Electrostatic protection circuit |
| 11/25/1998 | EP0692154B1 Clocked current supply |
| 11/25/1998 | CN1040929C Protective method for three-phase electrical equipment and automatic electrical appliance protector thereof |
| 11/24/1998 | US5841618 For an autorecloser |
| 11/24/1998 | US5841615 Ground fault circuit interrupt system including auxiliary surge suppression ability |
| 11/24/1998 | CA2136341C Method and device for preventing understabilization of longitudinal differential protection in case of external fault and current transformer saturation |
| 11/24/1998 | CA2060673C Stray current neutralizing method and device |
| 11/24/1998 | CA2009597C Electronic circuit breaker using digital circuitry having instantaneous trip capability |
| 11/19/1998 | DE19716826A1 Stromversorgungsnetz, insbesondere Schiffsbordnetz Mains, including ship-board network |
| 11/18/1998 | EP0878850A2 Photovoltaic power generation apparatus |
| 11/18/1998 | EP0878045A1 Distance protection method |
| 11/18/1998 | EP0877947A1 Method of calculating a resistance |
| 11/18/1998 | CN2297814Y Three phase open-phase protection contactor |
| 11/18/1998 | CN2297813Y Excess voltage protector for reactive compensator |
| 11/18/1998 | CN1040821C Apparatus and method for inhibiting earth current |
| 11/17/1998 | US5838525 High speed single-pole trip logic for use in protective relaying |
| 11/17/1998 | US5838524 Current limit circuit for inhibiting voltage overshoot |
| 11/17/1998 | CA2143862C Container for a hanger-supported garment |
| 11/12/1998 | WO1998050856A1 Non-intrusive power control for computer systems |
| 11/11/1998 | EP0876620A1 Method of detecting and locating a high-resistance earth fault in an electric power network |
| 11/11/1998 | EP0780032B1 Circuit for operating an electric motor |
| 11/11/1998 | EP0738432B1 Device for differentially protecting a power transformer |
| 11/11/1998 | CN2297022Y Three-phase protector for error phase and short phase |
| 11/11/1998 | CN1040714C Overvoltage protection device for telephone line |
| 11/10/1998 | US5835786 Computer apparatus with monitoring circuit for displaying fan working condition |
| 11/10/1998 | US5835325 Electronic trip device comprising a correcting device |
| 11/10/1998 | US5835324 Apparatus for protecting a circuit from excessive electrical amperage |
| 11/10/1998 | US5835322 Ground fault interrupt circuit apparatus for 400-Hz aircraft electrical systems |
| 11/10/1998 | US5834658 Method for monitoring the path of movement of a part |
| 11/05/1998 | DE19811065A1 Processor based control system for use with electrical equipment such as cookers, microwave ovens |
| 11/04/1998 | EP0875986A2 Controlling device with microprocessor provided with undervoltage-protection |
| 11/04/1998 | EP0875090A1 Connector, in particular a plug-in connector for tt and tn networks |
| 11/04/1998 | EP0875082A1 Socket |
| 11/04/1998 | EP0780031B1 Circuit for operating an electric motor |