| 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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| 12/18/2013 | CN103457244A DC/DC power protection circuit |
| 12/18/2013 | CN103457243A Direct-current motor protective circuit |
| 12/18/2013 | CN103457242A Electric furnace transformer longitudinal differential protection secondary current compensation method |
| 12/18/2013 | CN103457241A Transformer interior failure recognition post-detection-simulation method based on coupling inductance port characteristics |
| 12/18/2013 | CN103457240A Modifying method of transformer overcurrent relay protection |
| 12/18/2013 | CN103457239A Protection method for short circuit of high frequency uninterrupted power supply |
| 12/18/2013 | CN103457238A Method for detecting and protecting direct-current arc of photovoltaic power generation system and circuit |
| 12/18/2013 | CN103457237A Damage warning and protecting method and device for high-energy voltage dependent resistor overvoltage protector |
| 12/18/2013 | CN102412568B Method for adjusting line protection motion sequential solution breaker current delay zero crossing |
| 12/18/2013 | CN102386614B Method for sharing standby protecting device by power equipment in intelligent transformer substation |
| 12/18/2013 | CN102324725B Failure security protection method of three wastes fluidization mixing combustion furnace and device |
| 12/18/2013 | CN102222882B Failure detection device for power circuit including switching element |
| 12/18/2013 | CN102163912B Semiconductor device |
| 12/18/2013 | CN101976817B Start-up protection method and device for commissioning of electric equipment |
| 12/18/2013 | CN101796719B Electric motor control |
| 12/18/2013 | CN101635449B Optimizing converter protection for wind turbine generators |
| 12/17/2013 | US8611116 Varying switching frequency and period of a power supply controller |
| 12/17/2013 | US8611115 Resonant capacitor clamping circuit in resonant converter |
| 12/17/2013 | US8611114 Redundant control method for a polyphase converter with distributed energy stores |
| 12/17/2013 | US8611059 Power management circuit and high voltage device therein |
| 12/17/2013 | US8610505 Amplifier thermal management |
| 12/12/2013 | WO2013184332A1 System and method for high resistance ground fault detection and protection in power distribution systems |
| 12/12/2013 | WO2013182442A1 Transformer monitoring with a mobile device |
| 12/12/2013 | US20130329474 Controlling a fault-tolerant array of converters |
| 12/12/2013 | US20130329472 Power factor correction (pfc) power conversion apparatus and power conversion method thereof |
| 12/12/2013 | US20130328512 Electric automobile, in-wheel motor drive device, and motor control method |
| 12/12/2013 | US20130328511 Electric automobile |
| 12/12/2013 | DE112012001016T5 System und Verfahren zum Betreiben von Wechselrichtern System and method of operating of inverters |
| 12/12/2013 | CA2818787A1 Adjustment device |
| 12/11/2013 | EP2672598A2 Power distribution system incorporating ground fault interrupt protection |
| 12/11/2013 | EP2672597A1 Voltage rectifier |
| 12/11/2013 | EP2672596A1 Power generator protection unit |
| 12/11/2013 | EP2672353A1 Transformer monitoring with a mobile device |
| 12/11/2013 | EP2671297A1 Method for eliminating a fault on a high-voltage dc line, system for transmitting an electric current via a high-voltage dc line, and converter |
| 12/11/2013 | CN203339979U Switching power supply circuit applied to medical LCD |
| 12/11/2013 | CN203339965U Frequency converter equipped with anti-turning switch |
| 12/11/2013 | CN203339935U Low-voltage frequency converter having undervoltage protection function |
| 12/11/2013 | CN203339920U Two-phase brushless direct-current motor |
| 12/11/2013 | CN203339786U Portable emergency power box |
| 12/11/2013 | CN203339772U Electronic cigarette USB charger |
| 12/11/2013 | CN203339754U Power cutting-off structure of charger |
| 12/11/2013 | CN203339743U Portable lithium ion inverter system |
| 12/11/2013 | CN203339741U Locking structure for automobile charging connection system |
| 12/11/2013 | CN203339721U Solar energy charger |
| 12/11/2013 | CN203339682U A DC system protection measuring and controlling device |
| 12/11/2013 | CN203339681U Circuit breaker opening and closing coil protection device |
| 12/11/2013 | CN203339680U Composite SPD overcurrent and overheating protection device |
| 12/11/2013 | CN203339679U Controlled resistance-capacitance protector |
| 12/11/2013 | CN203339678U A DC motor driver load short-circuit protection circuit |
| 12/11/2013 | CN203339677U Wireless remote control lithium battery protection board |
| 12/11/2013 | CN203339676U Reverse-connection and short-circuit protection circuit for batteries |
| 12/11/2013 | CN203339675U Voltage protecting circuit used for single lithium battery |
| 12/11/2013 | CN203339674U Voltage protecting circuit used for single lead acid battery |
| 12/11/2013 | CN203339673U Under-voltage power-off protection device for battery management |
| 12/11/2013 | CN203339672U Low-voltage frequency converter with overvoltage protection function |
| 12/11/2013 | CN203339671U Motor protector |
| 12/11/2013 | CN203339670U Three-phase star type motor open-phase protector |
| 12/11/2013 | CN203339669U Three-phase motor over-current protective device |
| 12/11/2013 | CN203339668U Automatic protection circuit for cold-storage-used compressor motor |
| 12/11/2013 | CN203339667U Overpressure protection circuit of generator |
| 12/11/2013 | CN203339666U Generator-transformer unit protection loop |
| 12/11/2013 | CN203339665U Novel distributed series compensation system |
| 12/11/2013 | CN203339664U Transformer overtemperature protecting device |
| 12/11/2013 | CN203339663U Contactor protector |
| 12/11/2013 | CN203339662U Electric power protection cut-off device |
| 12/11/2013 | CN203339645U Power conversion unit |
| 12/11/2013 | CN203338956U Small-sized electronic protection transformer |
| 12/11/2013 | CN103444037A Voltage based method for fault identification in a transmission line and apparatus thereof |
| 12/11/2013 | CN103441656A IGBT driving circuit with undersaturated protection function |
| 12/11/2013 | CN103441643A Internal radiation ring type intelligent protection permanent magnet coupler |
| 12/11/2013 | CN103441642A Internal radiation ring static speed regulation protection type permanent magnet coupler |
| 12/11/2013 | CN103441485A 20kV flexible grounding control device and 20kV flexible grounding control method |
| 12/11/2013 | CN103441481A Self-adaptive selective leakage protection system and method for mine low-voltage electric network |
| 12/11/2013 | CN103441480A Novel traveling-wave protection method of wide-area power grid |
| 12/11/2013 | CN103441479A Override-trip-preventing and electricity-leakage-protecting no-selectivity method for coal mine power supply system |
| 12/11/2013 | CN103441478A AVC system bus-bar one-phase grounding sequence switch-out module and using method thereof |
| 12/11/2013 | CN103441477A Setting method for distance protection device of line transformer set |
| 12/11/2013 | CN103441476A Power distribution network failure recovery method based on load balance expected value search |
| 12/11/2013 | CN103441475A Wide-area differential protection system and method |
| 12/11/2013 | CN103441474A Digital electric arc protection system for chemical engineering equipment |
| 12/11/2013 | CN103441473A Arc light protection system suitable for single-bus section |
| 12/11/2013 | CN103441472A Battery protective circuit |
| 12/11/2013 | CN103441471A Over-current protection circuit of three-way output DC/DC converter |
| 12/11/2013 | CN103441467A Load nonlinear progressively-increasing delay protection circuit |
| 12/11/2013 | CN103434907A Power supply open-phase protection device of elevator control cabinet |
| 12/11/2013 | CN103433136A Device for preventing driving motor of belt type iron remover from locking |
| 12/11/2013 | CN102778285B Power source management device of capacitance keyboard of electronic scale |
| 12/11/2013 | CN102510058B Intelligent power network controller and working method thereof |
| 12/11/2013 | CN102332704B Switching power supply input undervoltage or overvoltage protection circuit |
| 12/11/2013 | CN102332703B Electric protection method for shore power system |
| 12/11/2013 | CN102237674B Protection element and electronic apparatus |
| 12/11/2013 | CN102118104B Apparatus and method for protecting overvoltage of high voltage inverter |
| 12/10/2013 | US8605471 Power conversion device |
| 12/10/2013 | US8605470 Power converter performing soft switching |
| 12/10/2013 | US8605467 High step-up ratio soft-switched flyback converter |
| 12/10/2013 | US8605393 Compressor protection and grid fault detection device |
| 12/10/2013 | US8604738 Method of and apparatus for controlling oil temperature increase for electric vehicle and electric vehicle |
| 12/10/2013 | US8604737 Systems and methods for protecting three-phase motors |
| 12/10/2013 | US8604731 Control device for AC rotating machine |
| 12/10/2013 | US8602743 Method of operating a safety vacuum release system |