| 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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| 07/09/1997 | CN1153992A Control and signalling device for protective switching apparatus |
| 07/02/1997 | EP0782265A1 Method and device for protecting an adjustable impedance element controlling the supply of an electric motor, particularly of a motor vehicle |
| 07/02/1997 | EP0782237A2 Power window with detecting function of sticking of foreign matter |
| 07/02/1997 | CN1153413A Protection element and method for protecting circuit |
| 07/01/1997 | US5644464 Portable ground fault circuit interrupter |
| 06/26/1997 | DE19547403A1 Modular motor vehicle modular electrical system |
| 06/25/1997 | EP0780952A1 Monolithic and static current limiter and circuit breaker |
| 06/25/1997 | EP0780951A2 Method and apparatus for remote testing of coordination of overcurrent protection devices in an electrical power system |
| 06/25/1997 | EP0780032A1 Circuit for operating an electric motor |
| 06/25/1997 | EP0780031A1 Circuit for operating an electric motor |
| 06/25/1997 | EP0746890A4 Method and apparatus for rms current approximation |
| 06/25/1997 | CN2257091Y Overvoltage self-strip safety combined socket |
| 06/24/1997 | US5642251 Protection circuit for DC supply |
| 06/24/1997 | US5642248 Electrical extension cord with built-in safety protection |
| 06/24/1997 | US5642003 Power system switch incorporating a positive-sequence fundamental signal magnitude detector |
| 06/19/1997 | DE19610666C1 Digital protection device e.g. for error detection in power supply system |
| 06/17/1997 | US5640127 Input protection for high bandwidth amplifier |
| 06/12/1997 | WO1997015872A3 Process for monitoring the path of displacement of a part |
| 06/11/1997 | EP0778645A2 Control powered overload relay |
| 06/11/1997 | EP0777928A1 Earth-leakage circuit breaker with automatic monitoring facility |
| 06/11/1997 | EP0777907A2 Electromechanical switching device and arrangement with several such devices |
| 06/10/1997 | US5638474 Connector for terminating a cable containing a transmission medium |
| 06/10/1997 | US5638243 Miswiring indicator in ground fault protection devices |
| 06/06/1997 | CA2189685A1 Control powered overload relay |
| 06/05/1997 | WO1997020372A1 Circuit protection arrangements |
| 06/04/1997 | EP0776539A1 Electrostatic protection circuit |
| 06/04/1997 | CN2255616Y Three-phase watt-hour meter electronic instrument for preventing fraudulent use of electricity |
| 06/04/1997 | CN1151223A Differential current protective switch with special core material |
| 06/03/1997 | US5635824 Power supplying circuit |
| 05/27/1997 | US5633776 Circuit breaker |
| 05/27/1997 | US5633540 Surge-resistant relay switching circuit |
| 05/22/1997 | WO1997018611A2 Energy validation arrangement for a self-powered circuit interrupter |
| 05/22/1997 | DE19543212A1 Faulty current circuit breaker |
| 05/22/1997 | CA2210399A1 Energy validation arrangement for a self-powered circuit interrupter |
| 05/21/1997 | EP0774822A1 Apparatus and method for programming and reviewing a plurality of parameters of an electrical switching device |
| 05/21/1997 | EP0774821A2 Test circuit for electrical switching device |
| 05/21/1997 | EP0774175A1 Movable barrier operator having force and position learning capability |
| 05/20/1997 | US5631816 DC voltage converter with current limitation |
| 05/20/1997 | US5631797 For limiting the voltage on a telephone line |
| 05/20/1997 | US5631795 Line fault monitoring apparatus |
| 05/20/1997 | US5631794 Differential shunt-type protection circuit |
| 05/20/1997 | US5631549 Linear regulator power supply with an overcurrent protection device |
| 05/20/1997 | CA2028072C Tingle voltage filter |
| 05/14/1997 | EP0717887B1 A.c. controller |
| 05/14/1997 | EP0663114B1 Digital protective relay arrangement |
| 05/14/1997 | CN1149936A Circuit for limiting current |
| 05/14/1997 | CN1149746A Circuit protective device comprising PTC condcutive liquid crystal polymer composition |
| 05/13/1997 | US5629824 For protecting an instrument from damaging effects of electric arcs |
| 05/13/1997 | US5629680 Vehicle current drain tester with memory saver |
| 05/13/1997 | US5629642 Power supply monitor |
| 05/09/1997 | WO1997016739A1 Source of waveform distortion discrimination circuit and method |
| 05/09/1997 | CA2236706A1 Source of waveform distortion discrimination circuit and method |
| 05/07/1997 | EP0566594B1 Overcurrent protection device |
| 05/07/1997 | CN2253886Y Active single-phase zero-connecting protector |
| 05/06/1997 | US5627965 Method and apparatus for reducing the effects of hardware faults in a computer system employing multiple central processing modules |
| 05/06/1997 | US5627718 Apparatus providing protection and metering in an ac electrical system utilizing a multi-function sampling technique |
| 05/06/1997 | US5627717 Electronic processing unit, and circuit breaker including such a unit |
| 05/06/1997 | US5627716 Overcurrent protection device |
| 05/06/1997 | US5627714 Electronic thermal protection device |
| 05/06/1997 | US5627713 Protective device for electric distribution system |
| 05/02/1997 | EP0770877A1 Method for monitoring a stationary condition or rotational speed during set-up of a drive system, in particular a fast response servo control system, and power relays for use with such a method |
| 05/01/1997 | WO1997015942A1 Loosely coupled mass storage computer cluster |
| 05/01/1997 | WO1997015872A2 Process for monitoring the path of displacement of a part |
| 04/30/1997 | DE19539577A1 Verfahren zum Überwachen des Bewegungswegs eines Teils A method of monitoring the path of movement of a part |
| 04/30/1997 | CN2253479Y Phase line recognizer for avoiding or indicating fraudulent use of electricity |
| 04/29/1997 | US5625519 Circuit protection arrangement |
| 04/29/1997 | US5625258 Clocked power supply |
| 04/24/1997 | WO1997014975A1 Electric current supply monitor |
| 04/23/1997 | EP0769836A2 A directional element |
| 04/23/1997 | EP0769835A1 Adaptive polarizing memory voltage time constant |
| 04/23/1997 | EP0631695B1 Phase selection for ground fault |
| 04/17/1997 | DE19537011A1 Electrical leakage current circuit-breaker |
| 04/16/1997 | EP0721685B1 Method of generating a signal indicating the direction of a short-circuit |
| 04/16/1997 | CN2252432Y Open-phase protection type three-phase A.C. contactor |
| 04/16/1997 | CN2252431Y Electrical equipment switch |
| 04/16/1997 | CN2252430Y 保安器 Security device |
| 04/16/1997 | CN1147714A Short-circuit protector for mine lighting transformer |
| 04/15/1997 | US5621625 Surge protection circuit for a switching mode power supply |
| 04/15/1997 | US5621598 Luminous tube protection circuit |
| 04/10/1997 | WO1997009756A3 Method and apparatus for automatic shut off of electronic equipment |
| 04/09/1997 | EP0721684B1 Method of generating a fault-indication signal |
| 04/09/1997 | EP0683927A4 Electrical supply safety socket. |
| 04/09/1997 | EP0657033B1 Detecting faults in power lines |
| 04/09/1997 | CN2251860Y Electronic pulse transformer for neon lamp |
| 04/09/1997 | CN2251822Y Electrical leakage protector |
| 04/08/1997 | US5619156 Low voltage inhibit circuit and integrated circuit using same |
| 04/06/1997 | CA2187058A1 Drive to last reclosure operation in a protective relaying system |
| 04/03/1997 | WO1997012109A1 Electronic door operator |
| 04/02/1997 | EP0766395A2 Power transistor with short-circuit protection |
| 04/02/1997 | EP0766362A2 Protecting element and method for protecting a circuit |
| 04/02/1997 | EP0721688B1 Method of generating a protection-triggering signal |
| 04/02/1997 | CN2251213Y Full-automatic supercurrent line safety switch |
| 04/02/1997 | CN2251196Y Double-coil ac contactor |
| 04/02/1997 | CN1146650A Protective circuit for phase-lose, overcurrent, undervoltage and overvoltage |
| 04/01/1997 | US5617283 Self-referencing modulation circuit for CMOS integrated circuit electrostatic discharge protection clamps |
| 03/30/1997 | CA2179466A1 Protection element and method for protecting a circuit |
| 03/27/1997 | DE19638478A1 Overcurrent protection circuit for electric motor drive system |
| 03/27/1997 | DE19537495A1 System for monitoring current up-take of e.g. electric cleaning machine |
| 03/27/1997 | DE19534442A1 Over-current protection device for 11 to 17 kV networks |
| 03/26/1997 | EP0593588B1 Circuit protection arrangement |