| Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031) |
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| 08/01/2012 | EP2482410A1 Relay and method for protecting transformer, transformer protecting system having the same |
| 08/01/2012 | EP2482409A2 DC Arc fault detection and protection |
| 08/01/2012 | EP2482085A1 Supply voltage monitor |
| 08/01/2012 | EP2286496B1 Protection device against corrosion for an on-board electrical system, and method for controlling said on-board electrical system |
| 08/01/2012 | EP1817827B1 Electrostatic discharge protection power rail clamp with feedback-enhanced triggering and conditioning circuitry |
| 08/01/2012 | CN202364420U Over-voltage and under-voltage protection circuit for AC electrical network for intelligent LED street lamp driver |
| 08/01/2012 | CN202364163U Program-controlled intelligent reduced-voltage starter |
| 08/01/2012 | CN202364137U Efficient energy-saving power adapter |
| 08/01/2012 | CN202364119U Novel low-cost parallel-connection flow equalizing circuit of switching-mode power supply |
| 08/01/2012 | CN202363981U Integrated protector for smart grid terminal |
| 08/01/2012 | CN202363891U 智能重合闸控制器 Smart reclosing controller |
| 08/01/2012 | CN202363890U Power protector for transmission line fault monitoring terminal |
| 08/01/2012 | CN202363889U Circuit breaker with grounding current protection functional module |
| 08/01/2012 | CN202363888U Override trip protection device for short circuit fault in mining power supply and distribution system |
| 08/01/2012 | CN202363886U Three-section type IGBT (Insulated Gate Bipolar Translator) temperature alarm and control protecting circuit |
| 08/01/2012 | CN202363884U Protective device for DC (direct current) stabilized power supply |
| 08/01/2012 | CN202363882U Full-functional automatic protection switch of motor |
| 08/01/2012 | CN202363877U Simple and easy electric leakage protecting device with multi-gear adjustable protection value |
| 08/01/2012 | CN202363876U Intelligent leakage protection switch |
| 08/01/2012 | CN202363875U Plastic housing breaker |
| 08/01/2012 | CN202363874U 定时电压保护器 Timing voltage protection |
| 08/01/2012 | CN202363873U Lightning protection device |
| 08/01/2012 | CN202363872U Power supply system and power protection circuit thereof |
| 08/01/2012 | CN202363871U Circuit breaker having switching-on instant protection function |
| 08/01/2012 | CN202363870U Over-current protection circuit, power supply circuit and power supply |
| 08/01/2012 | CN202363869U Control device of outdoor high-voltage alternating-current vacuum circuit breaker |
| 08/01/2012 | CN202363868U Intelligent low-voltage circuit breaker selective in grounding protection and electricity leakage protection functions |
| 08/01/2012 | CN202363692U Earth leakage protection plug |
| 08/01/2012 | CN202362744U Automatic-power-off wireless mouse |
| 08/01/2012 | CN102624950A Mobile phone and method for detecting condition of charger of mobile phone |
| 08/01/2012 | CN102624256A High voltage static generator |
| 08/01/2012 | CN102623980A Cut-off type alternating current fault current limiting circuit |
| 08/01/2012 | CN102623979A Isolated alternating current fault current limiting circuit |
| 08/01/2012 | CN102623976A Combined type grounding system of reactor and resistor in power distribution network |
| 08/01/2012 | CN102623972A Differential protection method using single-ended transient signal high-frequency component throughput of transmission line |
| 08/01/2012 | CN102623970A Method for controlling remote-control switching reclosure system applicable to microcomputer protection control |
| 08/01/2012 | CN102623969A Microcomputer protecting and controlling type remote control retreating reclosure system |
| 08/01/2012 | CN102623968A Characteristic-harmonic-based protection method and system for high-voltage direct current transmission line |
| 08/01/2012 | CN102623964A Light-emitting-diode (LED) protection circuit |
| 08/01/2012 | CN102623962A Adaptive lightning-protection surge-protection control circuit |
| 08/01/2012 | CN102623954A Intelligently controlled protector |
| 08/01/2012 | CN102623953A Method capable of improving sensitivity of main transformer longitudinal differential protection utilizing GOOSE network |
| 08/01/2012 | CN102623952A Opening/closing coil protection circuit for power circuit breaker |
| 08/01/2012 | CN102623951A Power supply protection management system and control method of household appliance |
| 08/01/2012 | CN102623950A Protection circuit for high-voltage integrated circuit |
| 08/01/2012 | CN102623949A Ground-wire-missing alarming protective circuit for voltage stabilizer |
| 08/01/2012 | CN102623948A Wide-voltage range phase sequence, phase coincidence and phase failure protector |
| 08/01/2012 | CN102623947A Leakage protector with phase line switching function |
| 08/01/2012 | CN102623262A Circuit breaker switching off/on coil with self-protection function |
| 08/01/2012 | CN102622955A Dot-matrix VFD (Vacuum Fluorescent Display) screen protection circuit |
| 08/01/2012 | CN102622033A Voltage regulator |
| 08/01/2012 | CA2767696A1 Method for limiting a current supplied by a dc power source |
| 07/31/2012 | US8233259 Reformed inductor, a surge protection device and a surge protector |
| 07/31/2012 | US8233258 DC bus clamp circuit to prevent over voltage failure of adjustable speed drives |
| 07/31/2012 | US8233256 System and method for programming and controlling over current trip point limits in voltage regulators |
| 07/31/2012 | US8233254 Method of ensuring the coordinated arc fault protection in a heirarchial power distribution system |
| 07/31/2012 | US8233251 Circuit interrupting device with interconnecting reset and test buttons |
| 07/31/2012 | US8233250 Over voltage protection of switching converter |
| 07/31/2012 | US8231751 Repair technique for lightning strike protection |
| 07/26/2012 | WO2012099733A1 Automatic reset discrimination system and method for a self powered electronic protection device |
| 07/26/2012 | WO2012098781A1 Power supply device |
| 07/26/2012 | WO2012097825A1 A wind turbine fault detection circuit and method |
| 07/26/2012 | US20120188676 Method for operating an electrical power supply network |
| 07/26/2012 | US20120188675 Free-wheeling circuit |
| 07/26/2012 | US20120188674 Load driving device |
| 07/26/2012 | US20120188673 Electrical line status monitoring system |
| 07/26/2012 | US20120188670 Switch control circuit, switch controlling method, and power supply device using the switch control circuit |
| 07/26/2012 | US20120188668 Protection device with a sandwiched cantilever breaker mechanism |
| 07/26/2012 | US20120187883 Choke with current sensor |
| 07/26/2012 | DE112010002226T5 Verfahren und Vorrichtungen zur Erdschlussüberwachung mittels Multifrequenz-Fehlerstromschutzschalter Methods and devices for earth fault monitoring using multi-frequency leakage circuit breaker |
| 07/25/2012 | EP2478605A1 Method and system for managing an electrical junction box |
| 07/25/2012 | CN202353481U Numerical control DC (Direct Current) power supply |
| 07/25/2012 | CN202353305U Solar energy and commercial power complementation controller |
| 07/25/2012 | CN202353303U Solar energy and commercial power complementation controller |
| 07/25/2012 | CN202353200U Lightning protection circuit of low-power switch power supply |
| 07/25/2012 | CN202353193U Open phase protective device for appliance switch |
| 07/25/2012 | CN202353188U Lead-acid storage battery charging protection device for electric bicycle |
| 07/25/2012 | CN202353187U Short circuit and overcurrent protection unit for storage battery |
| 07/25/2012 | CN202353184U Short-circuit protection circuit |
| 07/25/2012 | CN202353183U AC overvoltage off protection circuit |
| 07/25/2012 | CN202353182U Portable overcurrent protection device |
| 07/25/2012 | CN202353180U Auxiliary circuit for electromagnetic time-delay circuit breaker |
| 07/25/2012 | CN202353179U Three-phase protection device for screw-type water cooling unit |
| 07/25/2012 | CN202353178U Universal protector |
| 07/25/2012 | CN202353177U Overvoltage protection circuit for non-invasive blood pressure measuring device |
| 07/25/2012 | CN202353176U Secondary over-voltage protection device for current transformer |
| 07/25/2012 | CN202353175U Overvoltage and undervoltage protection system for three-phase power system |
| 07/25/2012 | CN202353174U Combined protector of high-voltage current limiting fuse |
| 07/25/2012 | CN202353173U 漏电保护器 Leakage protection |
| 07/25/2012 | CN202353172U Three-phase power supply automatic reclosure protector |
| 07/25/2012 | CN202352929U Leakage protection plug |
| 07/25/2012 | CN202352696U Intelligent photovoltaic array lightning-proof combiner box |
| 07/25/2012 | CN202345585U Device for preventing automobile from spontaneous combustion |
| 07/25/2012 | CN102612224A MR16 LED lamp drive circuit, drive method and MR16 LED lamp illumination system applying MR16 LED lamp drive circuit |
| 07/25/2012 | CN102612209A Recoverable protective circuit of boosting LED (light emitting diode) driving power supply and design method of recoverable protective circuit |
| 07/25/2012 | CN102611086A Centralized protection system and method for region distribution network |
| 07/25/2012 | CN102611084A Self-adaptive voltage protection method |
| 07/25/2012 | CN102611083A Method for implementing adaptive zero sequence current network protection |
| 07/25/2012 | CN102611081A Intelligent monitoring system of switch of branch circuit |
| 07/25/2012 | CN102611080A Main station type small current grounding control method |