| 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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| 02/13/2013 | CN202737449U Multi-path output power protection circuit and electronic equipment |
| 02/13/2013 | CN202737448U Short-circuit protection circuit |
| 02/13/2013 | CN202737447U Over-current and short-circuit protection circuit of module power supply |
| 02/13/2013 | CN202737446U Over-voltage protection circuit of switching power supply |
| 02/13/2013 | CN202737445U Direct current power source over-current fuse |
| 02/13/2013 | CN202737444U Multifunctional protection circuit of switched reluctance drive main power circuit |
| 02/13/2013 | CN202737443U Motor protection device for electrode hydraulic loosing and clamping device |
| 02/13/2013 | CN202737442U Oil-level protection circuit of combined-type transformer |
| 02/13/2013 | CN202737435U Overvoltage protection circuit and power supply module |
| 02/13/2013 | CN202737349U Intelligent electricity-saving cabinet of grinding miller |
| 02/13/2013 | CN202736705U Special voltage transformer with resonance eliminating function for railway |
| 02/13/2013 | CN202736704U Voltage transformer with resonance eliminating function |
| 02/13/2013 | CN202736703U Voltage transformer using resonance eliminating winding to eliminate current and voltage resonance |
| 02/13/2013 | CN202736702U Voltage transformer for eliminating current and voltage resonance |
| 02/13/2013 | CN202736701U Voltage transformer using special resonance eliminating winding to eliminate resonance |
| 02/13/2013 | CN202736700U Voltage transformer with functions of eliminating resonance and monitoring temperature |
| 02/13/2013 | CN202736688U Dry type transformer with breaking and protecting capacity |
| 02/13/2013 | CN202736666U Transformer with wireless monitoring system |
| 02/13/2013 | CN102934357A Method for operating a brushless electric motor |
| 02/13/2013 | CN102934309A Superconducting fault current-limiter with variable shunt impedance |
| 02/13/2013 | CN102931899A Motor speed control circuit |
| 02/13/2013 | CN102931888A Automatic control system with dual powers of greenhouse shutter rolling machine |
| 02/13/2013 | CN102931648A Bus residual voltage holding device |
| 02/13/2013 | CN102931644A Regional power grid fault isolation and recovery method |
| 02/13/2013 | CN102931643A Digital control-based IGBT (Insulated Gate Bipolar Transistor) drive protection circuit and protection method thereof |
| 02/13/2013 | CN102931642A Low-voltage frequency converter with over-current protection function and over-current protection method for low-voltage frequency converter |
| 02/13/2013 | CN102931641A Control and protection device of multispeed motor |
| 02/13/2013 | CN102931640A Zero-sequence differential protection method of transformer |
| 02/13/2013 | CN102931639A Short circuit protection device applied to electrical power system autotransformer |
| 02/13/2013 | CN102931638A Transformer temperature protection and alarm device |
| 02/13/2013 | CN102931637A Power source protection circuit of vehicle-mounted electronic component |
| 02/13/2013 | CN102931034A 漏电断路器 Leakage circuit breakers |
| 02/13/2013 | CN102930069A Transmission channel simulation method and system for relay protection |
| 02/13/2013 | CN102122881B High-power IGBT drive protection circuit applied to wind power generation |
| 02/13/2013 | CN101814719B Safety protection system of electric locomotive |
| 02/13/2013 | CN101800417B Method and apparatus for conditional response to a fault condition in a switching power supply |
| 02/13/2013 | CN101694937B Bus protection method based on steady-state quantity numerical directions |
| 02/12/2013 | US8374006 Method and apparatus to regulate an output voltage of a power converter at light/no load conditions |
| 02/12/2013 | US8373507 Power amplifier protection |
| 02/12/2013 | US8373392 Battery system and protection apparatus thereof |
| 02/08/2013 | DE202012012287U1 Überspannungsschutzelement An overvoltage protection element |
| 02/07/2013 | WO2013018326A1 Refrigeration device for transportation |
| 02/07/2013 | WO2013017779A2 Method of diagnosing a short circuit in an electrical assembly of a motor vehicle containing a capacitive component, and diagnostics device |
| 02/07/2013 | WO2013017515A1 Method and device for reliably monitoring a three-phase motor |
| 02/07/2013 | WO2013016974A1 Battery protection circuit |
| 02/07/2013 | US20130033909 Circiut and method for protecting a controllable power switch |
| 02/07/2013 | US20130033908 Inverter for an electric machine and method for operating an inverter for an electric machine |
| 02/07/2013 | US20130033787 Mobile generator and mobile generator protective device |
| 02/07/2013 | US20130033786 High Efficiency Power Regulator and Method |
| 02/07/2013 | DE102012107084A1 Motorsteuervorrichtung The motor control apparatus |
| 02/07/2013 | DE102011109537A1 Umrichtersystem mit Überwachungseinrichtung, Antrieb und Fahrzeug Converter system with monitoring device, driving and vehicle |
| 02/07/2013 | DE102011080436A1 Mobile Generatorvorrichtung und Schutzeinrichtung hierfür Mobile generator apparatus and protective device therefor |
| 02/06/2013 | EP2555368A1 Method and device for safe monitoring of an alternating current motor |
| 02/06/2013 | EP2553786A1 A method for transfer of control between devices in a substation system and a device thereof |
| 02/06/2013 | EP2552727A2 Inverter for an electrical machine and method for operating an inverter for an electrical machine |
| 02/06/2013 | CN202721638U Miniature combined-type starting thermal protection device |
| 02/06/2013 | CN202721611U Power source for drive circuit of power device of electric controller |
| 02/06/2013 | CN202721438U Circuit breaker coil protector |
| 02/06/2013 | CN202721437U A storage battery protector of a communication device. |
| 02/06/2013 | CN202721436U Inverter output end high voltage discharge protection circuit |
| 02/06/2013 | CN202721435U Motor protection device |
| 02/06/2013 | CN202721434U Crane protector |
| 02/06/2013 | CN202721378U 防火防爆监控系统 Fire and explosion monitoring system |
| 02/06/2013 | CN102916443A Method for improving low-voltage traversing capacity of doubly-fed wind turbine generator set by calculating crow-bar resistance value in real time |
| 02/06/2013 | CN102916409A Voltage-time type feeder automation running method based on parameter adjustment |
| 02/06/2013 | CN102916408A Fault handling method for distribution network including distributed power source |
| 02/06/2013 | CN102916407A Relay protection and fault information management system for regional power grid |
| 02/06/2013 | CN102916406A Self-adaption braking method for regional networked differential protection |
| 02/06/2013 | CN102916405A Method for preventing power frequency alternative current interference of transformer substation from causing maloperation of jump block relay |
| 02/06/2013 | CN102916404A Differential protection method of regional power grid network change range |
| 02/06/2013 | CN102916403A Bus protection operation mode identification method based on regional power grid information |
| 02/06/2013 | CN102916402A Criterion suitable for overcurrent protection of high-voltage motor |
| 02/06/2013 | CN102916401A Motor with brake and overload protection |
| 02/06/2013 | CN102916400A Over-torque protection control device and method for three-phase electric executor |
| 02/06/2013 | CN102916399A Motor protector applied to double-speed motor and implementing method of motor protector |
| 02/06/2013 | CN102916398A Three-phase protection relay |
| 02/06/2013 | CN102916397A Intelligent generator operation panel |
| 02/06/2013 | CN102916396A Current-leakage protection method of winding of electric power system transformer |
| 02/06/2013 | CN102916395A Winding leakage protection device for transformer of electrical power system |
| 02/06/2013 | CN102916394A On-site transformer protection system used for intelligent transformer substation |
| 02/06/2013 | CN102916393A Solar battery protector, solar battery pack and solar battery protective chip |
| 02/06/2013 | CN102916392A Out-of-step protection method for grid-connected system containing inverter-based distributed generation |
| 02/06/2013 | CN102914722A Detection method for seeking reasons of misoperation trip during transformer differential protection power transfer |
| 02/06/2013 | CN102910083A Battery power consumption management system of vehicle-mounted remote monitoring terminal |
| 02/06/2013 | CN102157932B Method for realizing transient stability domain visualization of power system |
| 02/06/2013 | CN102055173B Method for preventing differential protection false operation caused by exciting inrush current of no-load transformer |
| 02/06/2013 | CN101931219B Phase deviation based auto-disturbance rejection isolated island detecting method |
| 02/06/2013 | CN101916986B Method and device for automatically isolating and positioning earth faults of Dc system |
| 02/06/2013 | CN101682287B Method for controlling a rotary electric machine in case of load shedding, corresponding control and power module |
| 02/05/2013 | US8369114 Power supply with output overcurrent detection and error latch protection |
| 02/05/2013 | US8369111 Ultra low standby consumption in a high power power converter |
| 02/05/2013 | US8369056 Power supply control device, method for controlling power supply, program and power supply device |
| 02/05/2013 | US8369055 Method for setting free detection of out of step condition in electrical power system |
| 02/05/2013 | US8369051 Circuit arrangement and method for increasing the safety of an electronic operating device |
| 02/05/2013 | US8368373 Control circuit of power supply unit, power supply unit and control method thereof |
| 02/05/2013 | US8368360 Method and apparatus for regulating a field current for an alternator device |
| 01/31/2013 | WO2013015829A1 Precision voltage clamp with very low temperature drift |
| 01/31/2013 | WO2013015791A1 Electric motor clamping system |
| 01/31/2013 | WO2013014351A1 System for monitoring a rectifier for charging a battery of an electric automobile |
| 01/31/2013 | WO2013013384A1 Whole-line quick-action protection method for identifying internal and external faults of hvdc transmission lines using one-end electrical signals |