| 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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| 06/05/2013 | CN101969215B Multi-cell parallel application circuit and terminal equipment |
| 06/05/2013 | CN101938113B Mounting groove structure of display operation module of motor protector |
| 06/05/2013 | CN101931215B Wind, light and electricity integrated system and over-voltage protection method of rectifier thereof |
| 06/05/2013 | CN101783504B Protection circuit, battery system and protection method |
| 06/05/2013 | CN101777756B Over-current protection circuit for insulated gate bipolar transistor |
| 06/05/2013 | CN101420118B Drive control device of three-phase motor |
| 06/04/2013 | US8456873 Method and apparatus for a power conversion device |
| 06/04/2013 | US8456786 Bridging unit |
| 06/04/2013 | US8456782 Cost effective design for a current transformer with an integrated magnetic actuator |
| 05/30/2013 | WO2013076877A1 Storage battery system |
| 05/30/2013 | WO2013075672A1 Power battery assembly and electric vehicle comprising the same |
| 05/30/2013 | WO2013075291A1 Systems and methods for use in controlling a converter in response to grid fault events |
| 05/30/2013 | US20130135908 Converter system and method for the operation of such a converter |
| 05/30/2013 | US20130135776 Current transformer arrangement |
| 05/29/2013 | EP2597764A1 Method for handling failures in a modular multilevel converter and such a converter |
| 05/29/2013 | EP2597746A1 Method of controlling the power input to a HVDC transmission link |
| 05/29/2013 | EP2596565A2 Continuous uninterruptable ac grounding system for power system protection |
| 05/29/2013 | EP2596564A1 Method and arrangement for capacitor bank protection |
| 05/29/2013 | EP2596563A2 Photovoltaic bipolar to monopolar source circuit converter with frequency selective grounding |
| 05/29/2013 | EP2596562A1 Method for operating an output stage in a controller |
| 05/29/2013 | EP2596561A2 Sensing and control electronics for a power grid protection system |
| 05/29/2013 | DE102011080436B4 Mobile Generatorvorrichtung und Schutzeinrichtung hierfür Mobile generator apparatus and protective device therefor |
| 05/29/2013 | CN202957744U Impact resistant and high overpressure resistant power supply loop for remote-controlled time-delay started power supply |
| 05/29/2013 | CN202957657U Standby battery switching protection circuit of vehicle-mounted GPS terminal |
| 05/29/2013 | CN202957634U Maximum power point (MPPT) tracing and load protection device for photovoltaic cell |
| 05/29/2013 | CN202957615U Practical electric power-assisted vehicle storage battery charger |
| 05/29/2013 | CN202957591U Double-loop trip acceleration protection analog delay control device |
| 05/29/2013 | CN202957590U Short circuit fault rapid isolation and power supply recovery system in power gird |
| 05/29/2013 | CN202957589U Intelligent terminal of high-voltage power network |
| 05/29/2013 | CN202957588U Intelligent terminal device of medium-voltage electrical network |
| 05/29/2013 | CN202957587U Geographic Information System (GIS) combined appliance secondary protection loop |
| 05/29/2013 | CN202957586U Simplified protection circuit against peak current overload |
| 05/29/2013 | CN202957585U Circuit protecting MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) against short circuit in system |
| 05/29/2013 | CN202957584U IGBT saturation retreating protection circuit for frequency converter |
| 05/29/2013 | CN202957583U Switching power device with alternating current input over-voltage protection function |
| 05/29/2013 | CN202957582U Temperature control frequency converter |
| 05/29/2013 | CN202957581U Default phase protection device for motor |
| 05/29/2013 | CN202957580U Phase sequence protection device for motor of centrifugal machine |
| 05/29/2013 | CN202957579U Wiring circuit for transformer compound voltage locking preventing protective dead zone |
| 05/29/2013 | CN202957578U Temperature protection device for transformer |
| 05/29/2013 | CN202957577U Multistage temperature protection device for transformer |
| 05/29/2013 | CN202957576U Temperature protection and alarm device for transformer |
| 05/29/2013 | CN1489819B Method for determining time when obtaining current measuring value and protection system for power networks |
| 05/29/2013 | CN103124097A Intelligent lithium ion charger |
| 05/29/2013 | CN103124068A Anti-islanding protection system for distributed grid-connected system and protection method of anti-islanding protection system |
| 05/29/2013 | CN103124067A Class e amplifier with inductive clamp |
| 05/29/2013 | CN103124066A Short-circuit control for pulse power supply of high current |
| 05/29/2013 | CN103124065A Electric tool and control method thereof |
| 05/29/2013 | CN103124064A Protection method for preventing frequency conversion compressor from demagnetization |
| 05/29/2013 | CN102761103B Compressor demagnetization protection circuit and demagnetization protection method and air conditioner |
| 05/29/2013 | CN102082446B Multisection battery core management system |
| 05/29/2013 | CN102035183B Protection circuit for switching power supply |
| 05/29/2013 | CN102013802B BOOST circuit with short circuit protection function |
| 05/29/2013 | CN101847861B Protection and repair circuit for lead acid storage battery |
| 05/29/2013 | CN101783497B Multi-mode redundant field suppression protection loop |
| 05/29/2013 | CN101728858B Uninterruptible power supply and method for tripping thereof |
| 05/28/2013 | US8451638 Power converter with reverse recovery avoidance |
| 05/28/2013 | US8451637 Power transfer devices, methods, and systems with crowbar switch shunting energy-transfer reactance |
| 05/28/2013 | US8451573 Overvoltage protection device for a wind turbine and method |
| 05/28/2013 | US8450962 System for controlling a motor |
| 05/28/2013 | CA2575944C Resistor dropper power supply with surge protection |
| 05/28/2013 | CA2503077C Procedure for detecting and locating the source of partial discharges in an electrical device |
| 05/23/2013 | WO2013074494A1 Self-energizing voltage regulator with improved transient recovery |
| 05/23/2013 | WO2013073269A1 Storage battery unit |
| 05/23/2013 | WO2013072263A1 Generator grounding with power limitation |
| 05/23/2013 | WO2013071974A1 Fault protection in mixed high-voltage transmission lines |
| 05/23/2013 | WO2013071937A1 Protection of a permanent magnet generator |
| 05/23/2013 | US20130129373 Power supply system, image forming apparatus having the same, and low-capacity ac processing circuit |
| 05/23/2013 | US20130128635 Method for operating a converter and a switching cell and a converter |
| 05/23/2013 | US20130128394 Circuit Assembly for Overvoltage Limiting of An Excitation Coil of A Syncronous Machine Having Fast De-Excitation |
| 05/23/2013 | US20130128393 Method And Arrangement For Capacitor Bank Protection |
| 05/23/2013 | US20130128392 System and Method for Securely Connecting Energy Devices to a Power Bus |
| 05/23/2013 | DE102012210262A1 Batterie mit einer Batteriezelle mit externem und integriertem Temperatursensor und Verfahren zum Betrieb der Batterie Battery having a battery cell with an external and integrated temperature sensor and methods of operation of the battery |
| 05/23/2013 | DE102012110524A1 Elektrisches Ladesystem und Elektrofahrzeug Electrical charging system and electric vehicle |
| 05/23/2013 | CA2856011A1 Self-energizing voltage regulator with improved transient recovery |
| 05/22/2013 | EP2593952A1 Control arrangement |
| 05/22/2013 | CN202949618U Electronic ballast with adjustable brightness |
| 05/22/2013 | CN202949217U Low-voltage protection system of circuit breaker |
| 05/22/2013 | CN202949216U Power protection control circuit of point-of-sale machine |
| 05/22/2013 | CN202949215U Open-phase protection apparatus for three-phase asynchronous motor |
| 05/22/2013 | CN202949214U Comprehensive protecting device for motor |
| 05/22/2013 | CN202949213U Auxiliary protection device for remote tripping judgment |
| 05/22/2013 | CN202949212U Built-in anti-creeping protection device of warming water boiler |
| 05/22/2013 | CN103119844A Electric winch elevator device drive circuit fault inspection device |
| 05/22/2013 | CN103119815A Method and system for disconnecting a generator from a power system |
| 05/22/2013 | CN103117583A Full-automatic low static power consumption charger |
| 05/22/2013 | CN103117581A Solar mobile power supply |
| 05/22/2013 | CN103117550A Controller based on TMS320F2812 power distribution synchronous compensator |
| 05/22/2013 | CN103117537A Power distribution network area protection method and system |
| 05/22/2013 | CN103117536A Storage battery protective circuit |
| 05/22/2013 | CN103117535A Over-current protection self-locking circuit for photovoltaic inverter |
| 05/22/2013 | CN103117534A Anti-reflux controller |
| 05/22/2013 | CN103117533A Method for preventing false operation of motor in PT (potential transformer) maintenance |
| 05/22/2013 | CN103117532A Zero-sequence voltage trip protection method for low-voltage side of transformers |
| 05/22/2013 | CN103117531A Method for preventing knife switch position error from causing false direct-current protection |
| 05/22/2013 | CN103116116A Judging method and device of over line stoppage property of same pole double-circuit line with paralleling reactor |
| 05/22/2013 | CN102110356B RF (Radio Frequency) data communication system of electric water heater |
| 05/22/2013 | CN102044862B Fault characteristic extraction method for hydrogenerator rotor winding turn-to-turn short circuit |
| 05/22/2013 | CN102005729B Method for self-adaptation to alternating-current input signals of intelligent motor protection controller |
| 05/22/2013 | CN101916981B Method for preventing motor rotation blockage of automotive electric trunk and position sensor used thereby |