| 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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| 04/06/2011 | CN102005940A 电源装置 Power supply unit |
| 04/06/2011 | CN102005939A AC power switching module |
| 04/06/2011 | CN102005898A Torque limited permanent magnet coupler |
| 04/06/2011 | CN102005888A Branch state monitoring method and device of rotary rectifier |
| 04/06/2011 | CN102005777A Control method and control system for photovoltaic grid-connected inverter |
| 04/06/2011 | CN102005746A Method based on topology protection of distributing network |
| 04/06/2011 | CN102005745A IT power distribution system of 380/220V low voltage network and leakage protector thereof |
| 04/06/2011 | CN102005744A Method for forming differential current based on current slow attenuation of differential current zero crossing identification CT (computed tomography) |
| 04/06/2011 | CN102005743A Radial basic function neural network based adaptive relay protective device |
| 04/06/2011 | CN102005742A Distributed power generation island detection system and method based on power frequency carrier wave |
| 04/06/2011 | CN102005741A Distribution network line single phase earthing fault diagnosis and isolation method and device |
| 04/06/2011 | CN102005740A Extra-high voltage direct current line boundary element method adopting polar wave wavelet energy ratio |
| 04/06/2011 | CN102005739A Method for identifying extra-high voltage direct current transmission line area inside and outside fault wavelet energy |
| 04/06/2011 | CN102005738A Method for identifying healthy phase saturation based on current amplitude ratio and differential current harmonic wave |
| 04/06/2011 | CN102005737A Automatic jump selection method of electrified railway feeder line started by external contacts |
| 04/06/2011 | CN102005736A On-line monitoring method of state of relay protection equipment |
| 04/06/2011 | CN102005735A Safety protection device for power battery pack |
| 04/06/2011 | CN102005734A Battery protection integrated circuit and system |
| 04/06/2011 | CN102005733A Battery pack and its function stopping method |
| 04/06/2011 | CN102005732A Harmonic protection method for capacitor banks |
| 04/06/2011 | CN102005731A Controller, power converter and method for providing over-temperature protection |
| 04/06/2011 | CN102005730A Overload protection device and method for electric tool |
| 04/06/2011 | CN102005729A Method for self-adaptation to alternating-current input signals of intelligent motor protection controller |
| 04/06/2011 | CN102005728A Power protector for three-phase asynchronous motor |
| 04/06/2011 | CN102005727A Single motor protection device for dragging double motor through single frequency conversion |
| 04/06/2011 | CN102005726A Method for identifying magnetizing inrush current and external fault CT (current transformer) saturation based on waveform discontinuous characteristic |
| 04/06/2011 | CN102005725A Method for identifying excitation inrush current based on amplitude-comparison criterion |
| 04/06/2011 | CN102005724A PT secondary voltage switching method in transformer protection |
| 04/06/2011 | CN102005723A IEEE1588-based data synchronization method for fiber differential protection device |
| 04/06/2011 | CN102005722A Method and device for preventing short circuit of handheld terminal |
| 04/06/2011 | CN101546906B Method for fault line selection of electric distribution network by using S transformation energy relative entropy |
| 04/06/2011 | CN101340081B Electric protective method for electromagnetic forming machine |
| 04/06/2011 | CN101325331B Method for implementing element for measuring distance between phases without relevance to load current and ground resistance |
| 04/06/2011 | CN101325330B Method for implementing earthing distance measurement element |
| 04/06/2011 | CN101183783B Graded hyperbolic anti-TA transient saturation differential protection method |
| 04/06/2011 | CN101174770B 充电保护装置 Charge protection device |
| 04/06/2011 | CN101013810B Short-circuit and overcurrent detection circuit |
| 04/05/2011 | US7920364 Power supply with adjustable outputted voltage |
| 04/05/2011 | US7919946 Detection method for an electrical polyphase machine |
| 03/31/2011 | WO2011037565A1 Providing in rush current tolerance to an electronic device |
| 03/31/2011 | WO2011037170A1 Power supply control device |
| 03/31/2011 | WO2011037074A2 Electrostatic atomization device |
| 03/31/2011 | WO2011035611A1 Thermal protection device for motor |
| 03/31/2011 | WO2011005534A3 Charged capacitor warning system and method |
| 03/31/2011 | US20110075452 Detecting device for the midpoint voltage of a transistor half bridge circuit |
| 03/31/2011 | US20110074328 System and Method for Detecting a High Current Condition in a Motor |
| 03/31/2011 | US20110074323 Multi-phase rotary machine control apparatus and electric power steering system using the same |
| 03/31/2011 | US20110074322 Apparatus and method for detecting lock error in sensorless motor |
| 03/31/2011 | DE102010037541A1 Mehrphasendrehmaschinensteuervorrichtung und ein diesselbe verwendendes Servolenksystem Multiphase rotary machine control device and a same-use power steering system |
| 03/31/2011 | DE102009044944A1 Wechselrichter für eine elektrische Maschine und Verfahren zum Betreiben eines Wechselrichters für eine elektrische Maschine Inverter for an electric machine and method of operating an inverter for an electrical machine |
| 03/30/2011 | EP2302893A1 Constant current-type high-voltage power supply apparatus and method of controlling power output from the same |
| 03/30/2011 | EP2302875A1 Portable device, display method, and display program |
| 03/30/2011 | EP2302786A1 Excitation control system for marine diesel brushless doubly fed shaft generator and control method thereof |
| 03/30/2011 | EP2301125A1 Method and system for rearranging sound conductors in parallel lines in power transmission |
| 03/30/2011 | CN201781457U Intelligent motor control system |
| 03/30/2011 | CN201781420U Electronic transformer |
| 03/30/2011 | CN201781419U Variable-frequency and variable-voltage power source |
| 03/30/2011 | CN201781379U Motor with bearing damage alarm function |
| 03/30/2011 | CN201781312U Movable charging system |
| 03/30/2011 | CN201781298U Direct current time controller for large LED display screen |
| 03/30/2011 | CN201781295U Intelligent charger |
| 03/30/2011 | CN201781285U Permanent magnet vacuum switch type inrush current free low voltage reactive power compensation device |
| 03/30/2011 | CN201781273U Lightning protection device for power distribution cabinet and frequency conversion cabinet |
| 03/30/2011 | CN201781272U Multifunctional control and protection switch apparatus |
| 03/30/2011 | CN201781271U Two-way multi-channel LED protection circuit |
| 03/30/2011 | CN201781270U Lithium iron phosphate battery protecting board |
| 03/30/2011 | CN201781269U Shutdown circuit of remote multi-zone automatically shutdown global positioning system (GPS) vehicular positioning system |
| 03/30/2011 | CN201781268U Over-voltage protection device of inverter |
| 03/30/2011 | CN201781267U Over-current protection structure of alternating-current permanent magnet synchronous motor control system |
| 03/30/2011 | CN201781266U Energy-saving motor open-phase protector |
| 03/30/2011 | CN201781265U Motor differential protection device |
| 03/30/2011 | CN201781264U UPS power supply cutoff controller of oilfield logging instrument in case of emergency state |
| 03/30/2011 | CN201778820U Speed regulation operating platform for vibratory ore-drawing machine |
| 03/30/2011 | CN1956287B Power control method of vehicle battery and its device |
| 03/30/2011 | CN1643759B A protection device |
| 03/30/2011 | CN101997461A Inverter device |
| 03/30/2011 | CN101997428A Safe switching power circuit with protection function |
| 03/30/2011 | CN101997423A Self-oscillating flyback converter with function of output short circuit protection |
| 03/30/2011 | CN101997337A Data acquiring and processing system of intelligent switch synthetic protective device based on LabVIEW (Laborary Virtual Instrument Engineering Workbench) |
| 03/30/2011 | CN101997335A Power supply control system and control method |
| 03/30/2011 | CN101997334A Novel digital EPS fire emergency power system based on DSP |
| 03/30/2011 | CN101997326A 充电电路 Charging circuit |
| 03/30/2011 | CN101997303A Selective protecting system in power distribution system |
| 03/30/2011 | CN101997302A Method for protecting electric/electronic device of high-power converter from overhigh temperature |
| 03/30/2011 | CN101997301A Start protecting circuit of low-voltage and high-power motor |
| 03/30/2011 | CN101997300A Moment protection device of crane motor and monitoring control method thereof |
| 03/30/2011 | CN101997299A Electrical equipment assembly and method of calibrating electrical equipment assembly |
| 03/30/2011 | CN101996763A Current mutual inductor and current transformer for protecting frequency-adjusting electromotor |
| 03/30/2011 | CN101615786B Grid system protection method based on local information of transformer substation |
| 03/30/2011 | CN101399440B Protection circuit and method for multiple batteries |
| 03/30/2011 | CN101330779B Electric control device for modularization high-power electromagnetic range and control method |
| 03/30/2011 | CN101297449B A transmission system |
| 03/30/2011 | CN101231327B Apparatus and method for measuring battery allowance |
| 03/29/2011 | US7916443 Antistatic device with multiple discharging intervals |
| 03/29/2011 | US7916442 Breaker device for low-voltage applications |
| 03/29/2011 | CA2427821C Current compensation method and device for power system protection |
| 03/24/2011 | WO2011032585A1 Apparatus for protecting a medium voltage distribution transformer and the distribution line upstream of the transformer |
| 03/24/2011 | WO2010129723A3 Low-voltage connection with safety circuit and method for determining proper connection polarity |
| 03/24/2011 | US20110070465 Protection circuit module and battery including the protection circuit module and method of manufacturing the battery |
| 03/24/2011 | US20110068727 Method and system for monitoring power electronics controllers in automotive electrical systems |