| 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) |
|---|
| 06/30/1992 | US5127085 Ride-through protection circuit for a voltage source inverter traction motor drive |
| 06/30/1992 | US5126678 A.C. Generator fault detector |
| 06/30/1992 | CA1304446C Parallel power systems |
| 06/25/1992 | DE4040247A1 Direct current rectified source - with means to prevent current surged when a short circuit develops in the nominal load circuit |
| 06/24/1992 | EP0271525B1 Nickel-hydrogen storage cell with internal shorting upon failure |
| 06/24/1992 | CN2108373U Loss-of-phase protector for three phase motor |
| 06/24/1992 | CN2108372U Current type protector for motor |
| 06/24/1992 | CN2108371U Monitoring protector for motor |
| 06/23/1992 | US5124630 Switching power supply apparatus |
| 06/23/1992 | CA1304121C Control device for a dc motor intended for in particular driving opening elements on automobile vehicles |
| 06/21/1992 | WO1992011432A1 Monitoring apparatus |
| 06/21/1992 | CA2098597A1 Monitoring apparatus |
| 06/17/1992 | EP0490388A2 Ground fault detector for an inverter and a method therefor |
| 06/17/1992 | EP0490234A1 Step stall prevention for vehicle steps |
| 06/17/1992 | EP0490079A2 Overvoltage protecting device |
| 06/17/1992 | CN2107728U Three-phase motor double-protector |
| 06/17/1992 | CN2107727U Multi-function electronic motor protector |
| 06/17/1992 | CN2107726U Three-phase motor multi-function test control protector |
| 06/16/1992 | US5123081 Temperature control system for motors and power components of a material handling vehicle |
| 06/16/1992 | US5122726 Overvoltage protection for redundant power supplies |
| 06/14/1992 | WO1992010878A1 Circuit protection device |
| 06/14/1992 | CA2096641A1 Circuit protection device |
| 06/14/1992 | CA2057624A1 Step stall prevention for vehicle steps |
| 06/11/1992 | WO1992010017A1 Process and device for finding the load and/or loadability of electronically controlled components or groups of components |
| 06/10/1992 | EP0489487A2 Improvements in or relating to electrical supply apparatus |
| 06/10/1992 | EP0489291A2 Superconducting magnet system with inductive quench heaters |
| 06/10/1992 | CN2107081U Solid-state open-phase protector |
| 06/10/1992 | CN2106840U Magnetic induction speed-selectable open-phase protection controller |
| 06/09/1992 | US5121283 Overcurrent protective circuit for electrostatic self-turn-off devices |
| 06/09/1992 | US5121282 Arcing fault detector |
| 06/09/1992 | US5121066 Variable load dump simulator system |
| 06/04/1992 | DE4139436A1 Protection device for control microcomputer in motor vehicle - disconnects supply voltage provided by solar cell upon abnormal battery output voltage |
| 06/04/1992 | CA2056756A1 Superconducting magnet system with inductive quench heaters |
| 06/03/1992 | EP0488240A1 Inverter apparatus provided with electric discharge control circuit of DC smoothing capacitor and method of controlling the same |
| 06/03/1992 | EP0487964A2 Circuit arrangement for protecting a field-effect-controlled semiconductor against overload |
| 06/03/1992 | EP0487812A2 Phase - phase coupling device for medium voltage networks |
| 06/03/1992 | CN2106438U Braking main electric circuit protector for electric motor |
| 06/03/1992 | CN2106437U Not producing mistakable motion loss of phase protector for electric motor |
| 06/03/1992 | CN2106436U Zero-sequence voltage type phase interruption protector |
| 06/03/1992 | CN2106435U Protector for single phase electric motor |
| 06/03/1992 | CN2106434U Full functional protective controller for electromechanical equipment |
| 06/03/1992 | CN2106433U Self-checking matrix type multifunctional protector for electric motor |
| 06/02/1992 | US5119262 High-voltage transformer protection circuit |
| 06/02/1992 | US5118991 Electron beam generator for an electron gun |
| 06/02/1992 | CA1302495C Inverter control method and apparatus |
| 06/02/1992 | CA1302482C Short-circuit protection device for an electrical machine fed by a pulse-controlled a.c. converter |
| 05/30/1992 | WO1992010018A1 Fail-resistant solid state interruption system |
| 05/30/1992 | CA2074268A1 Fail-resistant solid state interruption system |
| 05/27/1992 | CN2105789U Three-phase ac motor phase-losing protector |
| 05/27/1992 | CN2105788U Capacitor coupling zero frequency voltage phase-losing protector |
| 05/27/1992 | CN2105787U Motor protector |
| 05/27/1992 | CN2105786U Protector for the water discharging electromagnet of washing machine |
| 05/27/1992 | CN1016819B Device for diagnosing electric power apparatus and method |
| 05/26/1992 | CA1301831C Motor control fail-safe circuit |
| 05/21/1992 | DE4036636A1 Circuit with input terminals fed by supply voltage - has smoothing capacitor arranged parallel to output terminals and series circuit of inductance and magnetic controlled resistance at input |
| 05/21/1992 | DE4036489A1 Digital binary phase sequence ID for logic linking in 3=phase system - is for remote control of async. and sync. motors, and digital binary circuit works with small delay with switch=on |
| 05/20/1992 | CN2105133U Electronic extra-sensitive protector for phase loss of motor |
| 05/20/1992 | CN2105132U Phase loss protector for motor |
| 05/20/1992 | CN2105131U Protector for phase loss, overvoltage and undervltage of 3-phase motor |
| 05/20/1992 | CN2105130U Three-phase symmetry load protector |
| 05/20/1992 | CN2105129U Full function protector for 3-phase motor |
| 05/14/1992 | WO1992008267A1 Servomotor-control circuit |
| 05/14/1992 | DE4035067A1 Schaltungsanordnung zur steuerung eines stellmotors Circuit arrangement for the control of an alternate engine |
| 05/13/1992 | EP0485154A2 Power conversion device |
| 05/13/1992 | EP0484570A1 Flyback switching power supply |
| 05/07/1992 | DE4034560A1 Protection of motor from overload |
| 05/06/1992 | CN2103868U Current-limiting resonance-eliminating charger |
| 05/05/1992 | US5111123 Motor driver interface fault detection apparatus using initial turn-on and noise timers |
| 04/30/1992 | DE4124433A1 Superconductor-protective temp.-sensing and current-limiting circuit - includes GTO thyristor activated by detector of excessive temp. anywhere along superconductor coating |
| 04/30/1992 | DE4034723A1 Early recognition of trouble in mains=connected inverters - comparing absolute DC and difference between DC and AC side currents with permissible limits |
| 04/29/1992 | EP0482767A2 Fault detection arrangement |
| 04/29/1992 | EP0482504A1 Method of protecting turn-off semiconductor power devices during short-circuits of an inverter output |
| 04/29/1992 | CN2103212U A. c. open-phase overload protector |
| 04/29/1992 | CN2103190U Electromagnet current-limiting protector |
| 04/29/1992 | CN1060745A Overcurrent protector for motor |
| 04/28/1992 | CA1299698C Shorted-coaxial-cable detector for local-area networks |
| 04/28/1992 | CA1299651C Gate signal generator for thyristor valve |
| 04/28/1992 | CA1299644C Apparatus for overload protection |
| 04/28/1992 | CA1299643C Digital circuit interrupter with electric motor trip parameters |
| 04/28/1992 | CA1299639C Protection method and protection device for detecting asynchronism in thesynchronous starting of a synchronous machine |
| 04/26/1992 | WO1992008269A1 Capacitive power supply having charge equalization circuit |
| 04/23/1992 | DE4033400A1 Current measuring arrangement for synchronously clocked power converter - safeguards transformer prim. current proportional voltage by Zener diode shorting switch closed in synchronism with clock |
| 04/22/1992 | CN2102576U Phase losing and over loading protector of motor |
| 04/22/1992 | CN2102575U Three phase motor fuse protector |
| 04/16/1992 | DE4124431A1 Protection circuit for transformer stepping switch contacts - uses series resistance for at least one contact and associated high-pass filter |
| 04/15/1992 | EP0480523A1 Apparatus for operating the roof panel of a sliding roof or a sliding/tilting roof of a motor vehicle |
| 04/15/1992 | EP0480517A2 A temperature responsive circuit |
| 04/15/1992 | CN2101959U Triphase motor protecting starter |
| 04/15/1992 | CN1060370A Automatic flashover protection for locomotive traction motors |
| 04/14/1992 | US5105328 Semiconductor circuit having an excess voltage protection circuit |
| 04/08/1992 | EP0479045A2 Operating device for members driven by an electric motor |
| 04/08/1992 | EP0478890A2 Protecting circuit for a laser diode |
| 04/08/1992 | EP0478808A1 Speed-controlled DC-motor with AC-current supply |
| 04/08/1992 | EP0478807A1 Washing machine with monitoring of the motor temperature |
| 04/08/1992 | EP0478574A1 Method and apparatus for monitoring an ac transmission line |
| 04/08/1992 | EP0478564A1 Safety device for vehicle passengers. |
| 04/07/1992 | USRE33874 Electric motor load sensing system |
| 04/02/1992 | WO1992005611A1 Automatic flashover protection for locomotive traction motors |
| 04/01/1992 | EP0477959A2 Overload current protection apparatus |
| 04/01/1992 | EP0477908A2 Protective apparatus for secondary battery |