| 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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| 04/18/2012 | CN101478147B 零序综合阻抗纵联保护判定方法 Zero sequence impedance synthesis method for determining pilot protection |
| 04/18/2012 | CN101399437B 安全电路和使用该安全电路的电池组 Safety circuit and use of the safety circuit of the battery pack |
| 04/18/2012 | CN101388538B 一种分级闭锁防爆开关 A hierarchical lockout-proof switch |
| 04/18/2012 | CN101252287B 电源系统、便携式计算机及保护电池的方法 Power systems, portable computers and to protect the battery method |
| 04/17/2012 | US8159843 Method and apparatus to regulate an output voltage of a power converter at light/no load conditions |
| 04/17/2012 | US8159800 Semiconductor device |
| 04/17/2012 | US8159797 Overvoltage protection circuit |
| 04/17/2012 | US8159792 Motor control device |
| 04/17/2012 | US8159165 Motor drive circuit |
| 04/17/2012 | CA2433581C Protection systems for power networks |
| 04/17/2012 | CA2418292C Time-optimum reception of protection commands in a remote tripping device |
| 04/12/2012 | WO2012047605A2 Systems and methods for protecting three-phase motors |
| 04/12/2012 | WO2012047476A2 System and method for fast discharge of a ring motor field |
| 04/12/2012 | WO2012045666A2 Method and device to protect an esp power supply from transient over-voltages on the power grid |
| 04/12/2012 | US20120087161 Power supply connected in parallel with a power switch for the control circuit thereof |
| 04/12/2012 | US20120087049 Low-frequency circuit breaker |
| 04/12/2012 | DE202012100023U1 HVDC-Hybrid-Leistungsschalter mit Schutzbeschaltung HVDC hybrid power switch with protective |
| 04/12/2012 | DE102010042292A1 Verfahren zur Funktionsprüfung eines elektrischen Halbleiterschalters, Steuereinheit zur Durchführung des Verfahrens und Hausgerät mit einer solchen Steuereinheit A method for functional testing of an electrical semiconductor switch control unit for performing the method and household appliance having such a control unit |
| 04/12/2012 | CA2813815A1 Method and device to protect an esp power supply from transient over-voltages on the power grid |
| 04/12/2012 | CA2813376A1 System and method for fast discharge of a ring motor field |
| 04/11/2012 | EP2439829A2 Assembly for secure deactivation of photovoltaic assemblies |
| 04/11/2012 | EP2439827A2 System for detection of a ground fault in a high resistance ground network |
| 04/11/2012 | CN202190261U 电源板放电装置及放电工具 Power plate discharge device and discharge tools |
| 04/11/2012 | CN202190260U 关态无功耗单键轻触电子多控开关 No off-state power consumption of electronic multi-touch touch-control switch |
| 04/11/2012 | CN202190219U 安全可靠放大器高压电源 Safe and reliable high-voltage power amplifier |
| 04/11/2012 | CN202190066U 核电高压厂用电系统电弧光保护电路 Nuclear Power Station system arc protection circuit |
| 04/11/2012 | CN202190065U Battery protective circuit |
| 04/11/2012 | CN202190064U Battery reverse connection protective circuit used for actuator and the like |
| 04/11/2012 | CN202190063U 一种新型开关电源高压保护器 A new switching power supply high voltage protection |
| 04/11/2012 | CN202190062U 一种汽车电子电源前端保护装置 A vehicle front end electronics power protection devices |
| 04/11/2012 | CN202190061U 一种具有断电延时功能的软起动张紧装置 Tensioning device with a soft-start power-off delay function |
| 04/11/2012 | CN202190060U 一种小容量电机或单台电机的抗晃电装置 A small-capacity motor or single motor electrical device anti-shake |
| 04/11/2012 | CN202190059U 一种多台大容量电机的抗晃电装置 A multi-large capacity electric motors anti-shake device |
| 04/11/2012 | CN202190058U 一种用于电机保护的安全装置 A safety device for motor protection |
| 04/11/2012 | CN202190057U 发电机接地保护装置 Generator Ground Protection |
| 04/11/2012 | CN202190056U 油浸式变压器低油位跳闸保护机构 Oil-immersed transformer low oil level trip protection agency |
| 04/11/2012 | CN202190055U 一种过压保护电路 One kind of overvoltage protection circuit |
| 04/11/2012 | CN202190054U 一种五防闭锁装置与微机保护装置的接线电路 A wiring circuit blocking device and computer protection device |
| 04/11/2012 | CN102414387A Method and device for detecting an entrapment situation |
| 04/11/2012 | CN102412783A 振动放矿机调速操作台 Vibration motor speed control console Ore |
| 04/11/2012 | CN102412714A 电动机保护器电源模块 Motor protection Power Module |
| 04/11/2012 | CN102412710A IGBT (Insulated Gate Bipolar Transistor) module driving circuit suitable for high-power inverter |
| 04/11/2012 | CN102412613A Intrinsically safe battery with self recovery function |
| 04/11/2012 | CN102412601A 一种小容量高功率锂电池组的保护控制方法 Protection method for controlling a small volume of high-power lithium battery pack |
| 04/11/2012 | CN102412569A 一种纵联差动保护利用故障分量实现启动的方法 One kind of longitudinal differential protection fault component to achieve start utilizing methods |
| 04/11/2012 | CN102412568A 调整线路保护动作时序解决断路器电流延迟过零的方法 Timing adjustment circuit protection action to resolve the current circuit breaker zero delay through the method |
| 04/11/2012 | CN102412567A 一种双can供电系统综合保护器及其使用方法 A dual power supply system can integrated protection and method of use |
| 04/11/2012 | CN102412566A 区域选择联锁测试方法与设备、电路中断器以及包含其的配电系统 Region selection interlock test methods and equipment, circuit breaker, and contains its distribution system |
| 04/11/2012 | CN102412565A 具有过流保护功能的隔离式igbt驱动电路 With overcurrent protection isolated igbt driver circuit |
| 04/11/2012 | CN102412564A 电池包及其保护电路与方法 Battery pack and its protection circuit and method |
| 04/11/2012 | CN102412563A 电机启动过程保护装置 Motor protection devices during startup |
| 04/11/2012 | CN102412562A 电动机保护器 Motor protection |
| 04/11/2012 | CN102412561A 用于旋转电机的控制设备 Control apparatus for rotating motor |
| 04/11/2012 | CN102412560A 一种单相变压器研究励磁涌流的方法和装置 A single-phase transformer inrush current research methods and apparatus |
| 04/11/2012 | CN102412559A 一种用于单相变压器研究励磁涌流的方法和装置 Methods and apparatus for single-phase transformer inrush current of research |
| 04/11/2012 | CN102412548A 抑制带并联电抗器补偿线路三相重合闸过电压的重合时序整定方法 With shunt reactors compensate for line three-phase reclosing overvoltage suppression coincides with the timing tuning method |
| 04/11/2012 | CN101764392B 基于多侧电流量电压量的变压器继电保护方法 The amount of current transformers and more side protection method based on the amount of voltage |
| 04/10/2012 | US8154888 Offline synchronous rectifier circuit with turned-on arbiter and phase-lock for switching power converters |
| 04/10/2012 | US8154830 Apparatus for quench protection and stabilizing decay in a quasi-persistent superconducting magnet |
| 04/10/2012 | US8154346 Short circuits and power limit protection circuits |
| 04/10/2012 | US8154235 Electric drive |
| 04/10/2012 | US8154234 Reliable drive cut off device |
| 04/05/2012 | WO2012044646A1 Integrated photovoltaic source circuit combiner and protection subsystem |
| 04/05/2012 | WO2012043264A1 Electric winch elevator device drive circuit fault inspection device |
| 04/05/2012 | WO2011120457A3 Switch control circuit for power supply and power supplying circuit |
| 04/05/2012 | US20120081818 System and Method for Fast Discharge of a Ring Motor Field |
| 04/05/2012 | US20120081817 Arrangement For Protecting Equipment Of A Power System |
| 04/04/2012 | CN202183896U 一种led灯应急控制电路 One kind of led emergency light control circuit |
| 04/04/2012 | CN202183749U 具有过载过流保护的电机软起动装置 Motor soft starter has been uploaded overcurrent protection |
| 04/04/2012 | CN202183622U 一种多节串联锂电池组均衡及保护系统 A multi-series lithium battery pack balanced and protection system |
| 04/04/2012 | CN202183621U 一种多节串联锂电池组均衡及保护系统 A multi-series lithium battery pack balanced and protection system |
| 04/04/2012 | CN202183620U 一种多节串联锂电池组均衡及保护系统 A multi-series lithium battery pack balanced and protection system |
| 04/04/2012 | CN202183596U 一种联络线的继电保护装置 A tie line protection devices |
| 04/04/2012 | CN202183595U 一种断路器断口绝缘击穿故障快速监测系统 A circuit breaker failure fast fracture monitoring system breakdown |
| 04/04/2012 | CN202183594U 一种带漏电保护的逆变电源 A power inverter with leakage protection |
| 04/04/2012 | CN202183593U Multi-speed fan system for transformer |
| 04/04/2012 | CN102403911A 供电电路 Power supply circuit |
| 04/04/2012 | CN102403798A Intelligent automatic transformer district monitoring method and system based on GIS (geographical information system) |
| 04/04/2012 | CN102403760A Protective circuit |
| 04/04/2012 | CN102403755A Charging apparatus |
| 04/04/2012 | CN102403701A 智能变电站双回线路的自适应距离保护方法 Intelligent Substation adaptive distance protection method Double Circuit Transmission Line |
| 04/04/2012 | CN102403700A 一种高压开关控制终端接地保护方法 A high pressure switch control terminal grounding protection methods |
| 04/04/2012 | CN102403699A 直流线路自适应电流差动保护方法 Adaptive DC line current differential protection method |
| 04/04/2012 | CN102403698A 薄层电池的保护 Thin battery protection |
| 04/04/2012 | CN102403697A 一种开关电源过压过流保护电路及保护方法 A switching power supply overvoltage and overcurrent protection circuit protection method |
| 04/04/2012 | CN102403696A 智能型电动机综合保护器 Intelligent Motor Protector |
| 04/04/2012 | CN102403695A 一种变压器非电量保护装置及保护方法 A transformer non-power protection devices and protection methods |
| 04/04/2012 | CN102403694A 带励磁涌流抑制及开关参数检测的变压器保护方法及装置 Method and apparatus for transformer protection with magnetizing inrush current suppression and switch parameters detected |
| 04/03/2012 | USRE43291 PFM-PWM DC-DC converter providing DC offset correction to PWM error amplifier and equalizing regulated voltage conditions when transitioning between PFM and PWM modes |
| 04/03/2012 | US8150557 Method and system for reducing feeder circuit loss using demand response |
| 04/03/2012 | US8148959 Microprocessor die with integrated voltage regulation control circuit |
| 03/29/2012 | WO2012039526A1 Method and device for protecting against overcurrent |
| 03/29/2012 | WO2012038436A1 Method and apparatus for operating an on-board electrical system of a vehicle |
| 03/29/2012 | US20120075754 Systems and methods for protecting three-phase motors |
| 03/29/2012 | US20120075753 Electronic system for converting dc voltage into ac voltage |
| 03/29/2012 | US20120074889 Inverter Control Device |
| 03/29/2012 | US20120074884 Inverter device and electric vehicle incorporating same |
| 03/29/2012 | US20120074883 Electric power tool |
| 03/29/2012 | US20120074878 Method and system for prevention of motor reversal |
| 03/29/2012 | DE102010041419A1 Method for protecting line and/or motor, involves separating contact elements from each other to open switch, and releasing switch when summed thermal load exceeds preset load limit of line and/or load |