| 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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| 06/01/2011 | CN201854175U Insulated gate bipolar transistor driving module with self-locking function |
| 06/01/2011 | CN201854092U Power failure report device based on wireless communication system |
| 06/01/2011 | CN201854090U 智能变压器 Smart Transformers |
| 06/01/2011 | CN201854061U Intelligent charger with dual temperature sensor and dual control mode |
| 06/01/2011 | CN201854039U Line pile power regulator |
| 06/01/2011 | CN201854038U Intelligent damage resistance protector |
| 06/01/2011 | CN201854020U Medium-voltage-side and low-voltage-side compound voltage action loop |
| 06/01/2011 | CN201854019U Electric power temperature control device |
| 06/01/2011 | CN201854018U Comprehensive protector with relay protection intelligent configuration |
| 06/01/2011 | CN201854017U Area selection interlocking testing equipment, circuit interrupter and power distribution system comprising same |
| 06/01/2011 | CN201854016U Power capacitor device |
| 06/01/2011 | CN201854015U Counting sensor based on current detection |
| 06/01/2011 | CN201854014U Microcomputer rotation speed signal device |
| 06/01/2011 | CN201854013U Incomplete differential protection device of steam turbine generator |
| 06/01/2011 | CN201854012U PT (potential transformer) secondary voltage switching circuit in protection of transformers |
| 06/01/2011 | CN201854011U Neutral point grounding protective device of electric power system |
| 06/01/2011 | CN102084569A Method and system for managing a power grid |
| 06/01/2011 | CN102082525A Quasi-resonant converter capable of limiting reverse recovery current |
| 06/01/2011 | CN102082446A Multisection battery core management system |
| 06/01/2011 | CN102082423A Relay protection method for phase to phase fault of circuit |
| 06/01/2011 | CN102082422A Method for preventing fault actions of line longitudinal differential protection caused by non-fault phase secondary current abrupt change |
| 06/01/2011 | CN102082421A Implementation method of break variable current differential relay based on differential impedance principle |
| 06/01/2011 | CN102082420A Longitudinal differential protection method of power transmission line |
| 06/01/2011 | CN102082419A Large-current medium-voltage switch cabinet capable of realizing arc light protection |
| 06/01/2011 | CN102082418A Method for setting overcurrent protection point for insulated gate bipolar transistor |
| 06/01/2011 | CN102082417A Simulating AC voltage-resisting control device |
| 06/01/2011 | CN102082416A Method for realizing input undervoltage and over-temperature protection based on over voltage protection (OVP) function of Boost control chip |
| 06/01/2011 | CN102082415A Motor phase-failure protective device |
| 06/01/2011 | CN102082414A Open-phase protector of electric motor of voltage comparison type |
| 06/01/2011 | CN102082413A Multi-loop low-voltage intelligent motor protection controller and control method thereof |
| 06/01/2011 | CN102082412A Gear motor |
| 06/01/2011 | CN102082411A Method for distinguishing magnetizing inrush current by sample current added with zero-sequence current component |
| 06/01/2011 | CN102082049A Protection device for high-voltage line fuse and transmission and distribution detection system |
| 06/01/2011 | CN102080694A Device and method for preventing locking of motor of purely electric vehicle |
| 06/01/2011 | CN101577417B Method for current differential protection of direct current electric transmission line |
| 06/01/2011 | CN101454513B Vehicle for work |
| 06/01/2011 | CN101383504B Intelligent auto-reclosing valve suitable for bus of 220kV voltage grade or above |
| 06/01/2011 | CN101345419B Series voltage quality regulator and fast investment and cutting method |
| 06/01/2011 | CN101295871B Laser |
| 06/01/2011 | CN101272049B Magnetic controlled shunt reactor exciting winding casing tube flashover detecting method and circuit |
| 06/01/2011 | CN101242093B Integrated relay protection system based on multi-channel transient pole direction comparison algorithm |
| 06/01/2011 | CN101103509B Secondary battery protection circuit and battery pack |
| 06/01/2011 | CN101043138B Protection circuit for semiconductor element |
| 06/01/2011 | CN101015114B Controller for permanent magnet alternator |
| 05/31/2011 | US7953993 Method and apparatus for a zero voltage processor sleep state |
| 05/31/2011 | US7952899 Alternating voltage generator equipped with a current limiting device |
| 05/31/2011 | US7952898 Forward converter transformer saturation prevention |
| 05/31/2011 | US7952893 Integrated control circuit for controlling a switching power supply, switching power supply incorporating the same, and a method of controlling a switching power supply |
| 05/31/2011 | US7952846 Power line communication method |
| 05/31/2011 | US7952841 Device for detecting malfunctions by manipulation of an internal voltage supply |
| 05/31/2011 | CA2413708C Protection zone selection in an electric power system |
| 05/31/2011 | CA2295888C Self-sourcing, isolated zone selective interlocking system for use with electronic trip circuit breakers |
| 05/26/2011 | WO2011061345A1 Safety circuit assembly and method for the fail-safe monitoring of a movement variable |
| 05/26/2011 | WO2011061200A1 Preventing load rejection overvoltages in synchronous rectifiers |
| 05/26/2011 | WO2011060578A1 Method and apparatus for ground distance protection |
| 05/26/2011 | US20110122663 Power supply with arc flash protection mechanism and data-processing system employing same |
| 05/26/2011 | US20110122535 Secondary side protection method and apparatus for a switching power converter |
| 05/26/2011 | DE102010022001A1 Schaltungsanordnung und Verfahren zum Bereitstellen einer Spannungsversorgung für eine Treiberschaltung Circuit arrangement and method for providing a power supply for a driving circuit |
| 05/26/2011 | DE102006053524B4 Motorstartschaltkreis Motor start circuit |
| 05/25/2011 | EP2325965A1 Overcurrent detection circuit, inverter, compressor, air conditioner, and overcurrent detection circuit adjusting method |
| 05/25/2011 | CN201846566U Electromagnetic shielding device with power supply surge protective device and signal wire and control circuit protective device |
| 05/25/2011 | CN201846298U Voltage stabilizing device used for permanent magnetic generator and capable of regulating output voltage by adopting pulse width modulation technology |
| 05/25/2011 | CN201846245U Intelligent DC/AC inverter |
| 05/25/2011 | CN201846244U Ozone high-voltage power supply |
| 05/25/2011 | CN201846183U Worm and worm gear speed reducing motor for opening and closing automobile skylight |
| 05/25/2011 | CN201846098U Charge and discharge protecting device and battery device |
| 05/25/2011 | CN201846097U Charging optimization manager for lead-acid storage battery |
| 05/25/2011 | CN201846094U Parallel generator set |
| 05/25/2011 | CN201846090U Double-fed generator system and protection device of double-fed generator system |
| 05/25/2011 | CN201846088U Intelligent capacitor with internal functions of electrical parameter measurement and protection |
| 05/25/2011 | CN201846081U Disaster-prevention reactive compensation device |
| 05/25/2011 | CN201846069U Arc light protector |
| 05/25/2011 | CN201846068U Overcurrent and short-circuit protection circuit of inverter |
| 05/25/2011 | CN201846067U Circuit for real time monitoring and carefully protecting power supply |
| 05/25/2011 | CN201846066U Undervoltage protective circuit with delaying function |
| 05/25/2011 | CN201846065U Transducer input overflow overvoltage protective device |
| 05/25/2011 | CN201846064U Over-temperature protector for speed reducer |
| 05/25/2011 | CN201846063U Mining explosion-proof alternating-current vacuum electromagnetic starter |
| 05/25/2011 | CN201846062U Detection device for starting process of motor |
| 05/25/2011 | CN201846061U Protection system of generator |
| 05/25/2011 | CN201846060U Non-electrical microcomputer measurement and control device |
| 05/25/2011 | CN1988315B Battery state monitoring circuit and battery device |
| 05/25/2011 | CN1960105B Deep discharge protection method, accumulator assembly and hand tool for the accumulator |
| 05/25/2011 | CN102077435A Method for selectively triggering circuit breakers in the event of a short circuit |
| 05/25/2011 | CN102077434A Method and device for computer-aided detection of jamming of an object |
| 05/25/2011 | CN102075035A Moulding motor |
| 05/25/2011 | CN102074994A Charging device of direct-current (DC) system |
| 05/25/2011 | CN102074971A Feedback load energy-saving circuit for aging test and control method thereof |
| 05/25/2011 | CN102074941A Distributed parameter model circuit-based interphase reactance relay |
| 05/25/2011 | CN102074940A Current differential protection method for direct current system circuit |
| 05/25/2011 | CN102074939A Online examination method of relay protection setting value based on dynamic short-circuit current |
| 05/25/2011 | CN102074938A Single-phase earth fault isolation system and method for electrical distribution network |
| 05/25/2011 | CN102074937A Ranging method for adaptive transmission line fault of model |
| 05/25/2011 | CN102074936A Method based on fault transient process for coordinating operating characteristics of differential relay |
| 05/25/2011 | CN102074935A Anti-dry heating alarm circuit for rinse tank of solar energy batteries |
| 05/25/2011 | CN102074934A Lithium ion battery with long service life |
| 05/25/2011 | CN102074933A Controlling and activating circuit with low power consumption |
| 05/25/2011 | CN102074932A Method and system for monitoring motor load |
| 05/25/2011 | CN102074931A Device special for oil starvation and starting protection of air compressor |
| 05/25/2011 | CN101552452B Short-circuit protection circuit for switching power supply of frequency converter |