| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 03/22/1994 | US5296786 Time delay relay arrangement |
| 03/22/1994 | US5296764 Reduction of disturbances in a power network |
| 03/17/1994 | WO1994006191A1 Power controller device |
| 03/16/1994 | EP0586369A1 Method and circuit for direct-current transmission. |
| 03/16/1994 | CN2159079Y Reactive-tracing compensation device |
| 03/16/1994 | CN1083984A Apparatus for controlling of parallel-working pulse width modulating inverters |
| 03/16/1994 | CN1083980A Safety a.c. main power |
| 03/09/1994 | EP0585451A1 A method for load shedding using a trainline monitor system |
| 03/09/1994 | CN1083629A Apparatus preventing from reverse charging of electricity |
| 03/08/1994 | US5293632 Method and apparatus for load shedding using a trainline monitor system |
| 03/08/1994 | US5293110 Bridge capacitor bank installation |
| 03/08/1994 | US5293028 Cooktop appliance with improved power control |
| 03/03/1994 | WO1994005067A1 Active filter for reducing non-fundamental currents and voltages |
| 03/03/1994 | CA2122129A1 Active filter for reducing non-fundamental currents and voltages |
| 03/02/1994 | EP0584660A2 Method and circuit arrangement for reduction of harmonics |
| 03/02/1994 | CA2084229A1 Power controller device |
| 03/01/1994 | US5291120 Method and apparatus for symmetrically modulating a controlled series compensation system |
| 03/01/1994 | CA1327398C Consumption meter |
| 02/23/1994 | EP0583875A2 Power conversion control apparatus and process |
| 02/22/1994 | US5289361 Adaptive boost switching preregulator and method |
| 02/17/1994 | WO1994003958A1 Active no-break power transfer control for a vscf power generating system |
| 02/17/1994 | WO1994003957A1 Device for preventing reverse charging |
| 02/15/1994 | US5287288 Active power line conditioner with low cost surge protection and fast overload recovery |
| 02/10/1994 | DE4242405C1 Switching of primary winding of power transformer with secondary connected to thyristor-converter - is timed to coincide with zero voltage across switch, by integrator controlling three=phase current regulator with matching transformer |
| 02/09/1994 | EP0582012A1 Method and device for managing the tariff of electrical power in a network of a room |
| 02/08/1994 | US5285374 Apparatus for generating digital signal synchronized with phase of power supply |
| 02/03/1994 | DE4322058A1 Distribution unit for electrical energy with mechanical storage - provided by use of flywheel that is operated by motor using various forms of energy such as solar or wind energy |
| 02/02/1994 | CN2155102Y Semiconductor switch for power condenser control |
| 02/02/1994 | CN2155095Y Power factor automatic compensator |
| 01/29/1994 | CA2109667A1 Harmonic cancellation system |
| 01/27/1994 | DE4224037A1 N-lines tuned filter circuit for energy distribution network - has series circuit of capacitor and inductor, and n-1 parallel circuits of capacitor and inductor connected in series |
| 01/26/1994 | EP0580217A1 Electronic switching-on apparatus and a switching-on method |
| 01/26/1994 | CN2154552Y Anti-exploisive reactive compensation vacuum electromagnet starter |
| 01/25/1994 | US5281859 Automatically switched power receptacle |
| 01/25/1994 | CA1326508C2 Load control system |
| 01/20/1994 | WO1994001915A1 Method and apparatus for an asynchronous static switch |
| 01/20/1994 | WO1994001028A1 Device for preparing hot drinks |
| 01/20/1994 | DE4323432A1 Learning algorithm for use in neural network for electrical power regulation - operating system together with simulation system that allows control rules to be continuously improved |
| 01/19/1994 | EP0579110A1 Switched receptacle circuit |
| 01/19/1994 | EP0340292B1 Power supply system for segmented loads |
| 01/13/1994 | DE4321585A1 Power factor correction circuit with rectifier - has input terminal for downwards divided, rectified AC signal, and voltage sensor |
| 01/11/1994 | US5278778 Decentralized simulator |
| 01/11/1994 | US5278772 Real-time economic load allocation |
| 01/11/1994 | US5278771 Programmable timed electrical power management device |
| 01/11/1994 | US5278492 Controllable AC power supply for an ozonator |
| 01/06/1994 | WO1994000824A1 Computer-controlled circuit breaker arrangement with circuit breaker having identification circuit |
| 01/06/1994 | WO1994000823A1 Computer-controlled circuit breaker energy management arrangement having reliable memory and clock |
| 01/06/1994 | CA2115928A1 Computer-controlled circuit breaker arrangement with circuit breaker having identification circuit |
| 01/05/1994 | EP0577561A1 Apparatus preparing hot beverages |
| 01/05/1994 | EP0577532A1 Electrical energy distribution installation with domestic network communication structure |
| 01/05/1994 | CN1023437C Inverter system |
| 12/29/1993 | EP0575683A1 Damping means for compensation and filter circuits in power networks |
| 12/29/1993 | EP0509991B1 A system for discharging electrical power from a high-voltage direct current line |
| 12/29/1993 | EP0416050B1 A device with a multi-phase load, a static converter and choke coils |
| 12/29/1993 | CN2151492Y Microcomputer reactive self compensating controller |
| 12/28/1993 | US5274571 Energy storage scheduling system |
| 12/23/1993 | DE4219609A1 Frequency responsive switching of multi-generator AC supply network - involves connection or isolation of individual generators as frequency falls below or rises above specific threshold values. |
| 12/22/1993 | CN1023276C Connecting control device for controlling connection of small generator unit to electric power system |
| 12/21/1993 | US5272617 Apparatus for detecting short-circuit for use in bi-polar d.c. transmission system |
| 12/21/1993 | US5272428 Fuzzy logic integrated control method and apparatus to improve motor efficiency |
| 12/21/1993 | US5272387 Connecting device of an external electrical power supply source to an aircraft on the ground |
| 12/21/1993 | US5272381 Common mode filtered magnetic connector |
| 12/16/1993 | DE4219214A1 Attenuation circuit for signal harmonics - uses tuned filter coupled to tap-off of duplex filter inserted between current regulator and AC network |
| 12/15/1993 | EP0574298A2 Local network for a system of control and self-monitoring of an electric device |
| 12/15/1993 | CN2149742Y Non-consumption type electric resistance arrangement with ballast function |
| 12/14/1993 | US5270913 Compact and efficient transformerless power conversion system |
| 12/14/1993 | CA1325244C Electrical energy analyser |
| 12/09/1993 | DE4216946A1 Converter for symmetric feeding of three-phase load - with each phase current provided with its own regulator unit |
| 12/08/1993 | EP0573140A2 Real-time economic load allocation |
| 12/08/1993 | CN2149049Y Reactive on-site-compensation system for 660V/1140V coal mine electric machine |
| 12/08/1993 | CN2149048Y Collecting and distributing type load controller |
| 12/08/1993 | CN2149047Y Electricity-saving compensation and phase failure protector for motor |
| 12/01/1993 | EP0571898A1 Low voltage power control breaker system |
| 12/01/1993 | EP0571889A2 Electric load controlling device |
| 12/01/1993 | EP0571645A1 Method and device for a recognition of defects in a control system for a controlled series compensator |
| 12/01/1993 | EP0571644A1 Method and device for unloading a series capacitor of a controlled series compensator according to the load of its protection shunt |
| 12/01/1993 | EP0571643A1 Method and device for symmetrical control of a series compensator installation |
| 12/01/1993 | EP0571642A1 Method and device for generating a synchronisation signal for a control unit of a controlled valve of a series compensator |
| 12/01/1993 | EP0571598A1 Thyristor controlled series capacitor vernier control system |
| 12/01/1993 | CN1079083A Compact and efficient transformerless power conversion system |
| 11/25/1993 | WO1993023910A1 Vernier control system for subsynchronous resonance mitigation |
| 11/25/1993 | WO1993023909A1 A primary inductive pathway |
| 11/25/1993 | WO1993023908A1 A non-contact power distribution system |
| 11/24/1993 | EP0570976A2 Electric power supply system |
| 11/24/1993 | EP0570839A2 Voltage drop compensating and current harmonics reducing circuit on the feed lines |
| 11/21/1993 | CA2096491A1 Method and apparatus for recognizing defects in a triggering system of a controlled series compensator |
| 11/21/1993 | CA2096487A1 Method and apparatus for relieving a capacitor of a controlled series compensator as a function of the load on its arrester |
| 11/19/1993 | CA2096320A1 Method and apparatus for symmetrically modulating a controlled series compensation system |
| 11/19/1993 | CA2096319A1 Method and apparatus for generating a synchronizing signal for a firing-circuit subassembly to trigger a power converter valve of a controlled series compensator |
| 11/18/1993 | EP0569557A1 Phase-shifting transformer system |
| 11/18/1993 | EP0569556A1 Variable speed wind turbine |
| 11/17/1993 | CN1078577A High-efficiency relay battery power-supplying system capable of energy storage during non-peak load and apparatus thereof |
| 11/17/1993 | CN1022786C Self-adapting compensating-in-place method and apparatus thereof |
| 11/16/1993 | US5262935 Parallel inverter control apparatus |
| 11/16/1993 | US5262679 Polarizing potential transfer switch circuit for use with power transmission lines |
| 11/16/1993 | US5262677 Reactor subsynchronous tuning scheme |
| 11/10/1993 | EP0568822A2 Energy supply system |
| 11/09/1993 | US5260862 A-C power line filter |
| 11/07/1993 | CA2093472A1 Real-time economic load allocation |
| 11/03/1993 | EP0568130A1 A method for regulating the voltage at the delivery points in a network for distributing electric energy |