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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09/20/2006 | CN1276527C Battery with protective circuit |
09/20/2006 | CN1276451C Combination block of motor protector for compressor |
09/19/2006 | US7111195 Method and system for external clock to obtain multiple synchronized redundant computers |
09/19/2006 | US7110272 Inverter bridge controller implementing short-circuit protection scheme |
09/19/2006 | US7110271 Inrush current prevention circuit for DC-DC converter |
09/19/2006 | US7110231 Adaptive protection system for a power-distribution network |
09/19/2006 | US7110226 Regulator protection circuit and power supply apparatus incorporating it |
09/19/2006 | US7109877 Fault monitoring apparatus and method |
09/19/2006 | US7109687 Three-phase ac generator for vehicle |
09/19/2006 | US7109676 Control for electric motor in vehicles |
09/19/2006 | US7109438 Power supply apparatus for arc-utilizing apparatus |
09/14/2006 | US20060203528 Apparatus for power conversion in electric rolling stock |
09/14/2006 | US20060203410 Secondary battery protection device |
09/14/2006 | US20060203402 Fireguard circuit |
09/14/2006 | US20060203400 Current regulator having a transistor and a measuring resistor |
09/14/2006 | US20060203399 Overload protection arrangement for electronic converters, for instance for halogen lamps |
09/14/2006 | US20060202001 Enhanced heat system for bga/cga rework |
09/14/2006 | US20060201264 Transformer monitoring system |
09/14/2006 | DE102005009789A1 Electrical component e.g. heater device, overload protection arrangement for e.g. airplane, has protection device bypassing overload current in case of short circuit so that current via component to be protected is not above maximum limit |
09/14/2006 | DE10101099B4 Verfahren zum Überwachen des Trockenlaufs einer Förderpumpe und nach dem Verfahren arbeitende Förderpumpe Method for monitoring the dry run of a feed pump and operating according to the process pump |
09/13/2006 | EP1701594A1 Overload protection arrangement for electronic converters, for instance for halogen lamps |
09/13/2006 | EP1700326A1 Cryogenic current limiting fuse |
09/13/2006 | EP1699287A1 Sprayer thermal protection |
09/13/2006 | CN2817169Y Over power protection device for self exciting power supply device |
09/13/2006 | CN2817160Y Spark suppresser |
09/13/2006 | CN2817139Y Contactless transformer air-cooling control device |
09/13/2006 | CN2816829Y Small current earthing route selection device |
09/13/2006 | CN1832287A Automatic start function module of motor and control method thereof |
09/13/2006 | CN1832286A Undervoltage warning method, undervoltage warning circuit and switching power supply |
09/13/2006 | CN1831704A Hard disk hot Atach & Detach power supply protection circuit of computer device |
09/13/2006 | CN1275370C Motor open-phase protection circuit |
09/12/2006 | US7107162 Determining an operational limit of a power transmission line |
09/12/2006 | US7106605 DC converter circuit with overshoot protection |
09/12/2006 | US7106573 Protection circuit for a digital subscriber line device |
09/12/2006 | US7106565 Directional ground relay system |
09/12/2006 | US7106030 Field excitation for an alternator |
09/12/2006 | US7106029 Vehicle generator and vehicle generating system |
09/12/2006 | US7106028 Controller of A.C. generator for vehicles |
09/12/2006 | US7106017 Motor control device |
09/12/2006 | US7105953 Power sharing system and method for battery operated controller and application modules |
09/12/2006 | US7105949 Emergent power supply system and method of achieving input current balance in such system |
09/09/2006 | CA2538210A1 Overload protection arrangement for electronic converters, for instance for halogen lamps |
09/08/2006 | WO2006093926A1 An apparatus and method for detecting the loss of a current transformer connection coupling a current differential relay to an element of a power system |
09/08/2006 | WO2006093600A2 Trench capacitor power supply system and method |
09/08/2006 | WO2006092715A1 Malfunction determining device for drive circuit and drive unit including the same, and method for determining malfunction in drive circuit |
09/07/2006 | US20060198073 Method and an apparatus for supervising the operation of current transformers |
09/07/2006 | US20060198065 Apparatus and method for detecting the loss of a current transformer connection coupling a current differential relay to an element of a power system |
09/07/2006 | US20060197637 Superconducting magnet system |
09/07/2006 | US20060197511 Transformer with protection against direct current magnetization caused by zero sequence current |
09/07/2006 | US20060197483 Power tool with remote stop |
09/07/2006 | US20060196265 System and method for proactive motor wellness diagnosis |
09/07/2006 | DE202005006760U1 Light consists of connection for voltage supply channel and second connection for signal channel and has security against overloading and may have apparatus to locate first and second channels |
09/07/2006 | DE102005029949A1 Protection device for overvoltage attacks against a vending machine, has an overvoltage protection device that is connected to machine operating and control electronics and which isolates them if a critical overvoltage is detected |
09/06/2006 | EP1698032A1 Method for the operation of a converter circuit of a washing machine or a tumble dryer |
09/06/2006 | EP1481456A4 A protection device |
09/06/2006 | CN2814760Y Comprehensive automatic protector utilizing digital inputting |
09/06/2006 | CN2814759Y Silicon control state sampling device |
09/06/2006 | CN2814758Y Three-phase asynchronous motor open-phase in stantaneous overload delay protector |
09/06/2006 | CN2814757Y Device Net field bus intelligent motor protection observing and controlling apparatus |
09/06/2006 | CN2814430Y Small current grounding select switch with arc suppression coil |
09/06/2006 | CN1830091A H-bridge with single lead frame |
09/06/2006 | CN1829035A Building electric fire hidden trouble alarm power distribution method and its circuit |
09/06/2006 | CN1829032A Electronic component power-off protection circuit |
09/06/2006 | CN1829031A Short-circuit protection circuit with self-recovering function |
09/06/2006 | CN1829030A Quick-break protection device and method with power direction in motor protection measuring and controlling device |
09/06/2006 | CN1829029A Motor protector |
09/06/2006 | CN1829028A Passive zero breaking automatic de-excitation device and method |
09/06/2006 | CN1829027A Protective circuit for intrinsically safe electromagnetic actuators, and protective circuit for intrinsically safe energy supply systems |
09/06/2006 | CN1828789A Superconducting magnet system |
09/05/2006 | US7102898 Isolated drive circuitry used in switch-mode power converters |
09/05/2006 | US7102866 Power line protection |
09/05/2006 | US7102861 Cryogenic current limiting fuse |
09/05/2006 | US7102332 Control apparatus for automotive generator |
09/05/2006 | US7102313 Apparatus and method for providing protection to electric traction motor of vehicle |
08/31/2006 | WO2006089904A1 Submarine direct current network |
08/31/2006 | US20060195874 Transmission/reception integrated radio-frequency apparatus |
08/31/2006 | US20060193155 DC converter |
08/31/2006 | US20060193099 Systems and methods for performing a redundancy check using intelligent electronic devices in an electric power system |
08/31/2006 | US20060193091 Power semiconductor apparatus provided with power controlling semiconductor modules connected in parallel to each other |
08/31/2006 | US20060193090 Synchronous motor startup lock detection circuit and method |
08/31/2006 | US20060192535 Fixed frequency electrical generation system with induction coupler and use thereof in an aircraft |
08/31/2006 | US20060192534 Generating apparatus and motor control apparatus |
08/31/2006 | US20060192533 Method and apparatus for calculating/controlling power generation torque |
08/31/2006 | US20060191500 Method for controlling cooling fans |
08/30/2006 | EP1696531A2 A method and an apparatus for supervising the operation of current transformers of a protection relay |
08/30/2006 | CN2812375Y 瞬态过电压控制器 Transient overvoltage controller |
08/30/2006 | CN2812094Y Power supply management circuit for PCMCIA card |
08/30/2006 | CN1825730A Phase-loss detection for rotating field machine |
08/30/2006 | CN1272897C Switching power supply device |
08/29/2006 | US7099461 System and method for the powering and fault protection of remote telecommunications equipment |
08/29/2006 | US7099169 DC to AC inverter with single-switch bipolar boost circuit |
08/29/2006 | US7099168 DC-AC converter and controller IC therefor |
08/29/2006 | US7099134 Apparatus for protecting boost converter in abnormal operation |
08/29/2006 | US7099128 Fault condition protection |
08/29/2006 | US7099127 High-side short-circuit protection for a voltage converter |
08/29/2006 | US7098632 Controller in a voltage mode buck converter for implementing a mode-switch function and an over-current protection by a multifunction pin and method thereof |
08/29/2006 | US7098629 Generator apparatus |
08/29/2006 | US7098628 Generation control system |
08/29/2006 | CA2267693C System and related methods for detecting and measuring the operational parameters of a garage door |
08/24/2006 | WO2006088848A1 Device and method of sensing temperature of a rotating electromagnetic machine |