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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04/09/2014 | CN103715655A Overcurrent protection device, power tool and overcurrent protection circuit |
04/09/2014 | CN103715654A Method for restraining magnetizing inrush currents |
04/09/2014 | CN103715653A Transformer anti-overheating protection device and control method |
04/09/2014 | CN103713255A Circuit fault detection method, circuit fault detection system and controller |
04/09/2014 | CN103178587B Magnetizing power source for magnetic defect detector |
04/09/2014 | CN102545660B Phase sequence self-adaption trigger circuit of three-phase fully-controlled rectifier induction heating power supply |
04/09/2014 | CN102437555B Over-temperature protection circuit for insulated gate bipolar transistor (IGBT) |
04/09/2014 | CN102412567B Synthetical protector for controller area network (CAN) power system and using method thereof |
04/09/2014 | CN102290800B Method for checking relay protection setting |
04/09/2014 | CN102280853B Intelligent overcurrent phase-failure protector of distribution transformer |
04/09/2014 | CN102270837B Network failure reconstruction method suitable for airplane distributed distribution system |
04/09/2014 | CN101846729B Method and device for detecting overvoltage of power supply |
04/08/2014 | US8693223 Power converter with zero voltage switching and related control method thereof |
04/08/2014 | US8693222 DC-DC converter, power supply unit and an information processing apparatus |
04/08/2014 | US8693220 System for improved wind turbine generator performance |
04/08/2014 | US8693157 Substrate including an ESD protection function |
04/08/2014 | US8693155 Constant voltage power supply circuit |
04/08/2014 | US8693147 Electrical component and method for controlling an electrical component |
04/08/2014 | US8693146 Quench detection system for a superconductor fault current limiter |
04/08/2014 | US8692289 Fast turn on silicon controlled rectifiers for ESD protection |
04/08/2014 | CA2719150C Condensive load protection device of self-excited generator |
04/05/2014 | CA2829414A1 Improved protection relay system against single-phase faults for medium-voltage distribution networks |
04/03/2014 | WO2014050669A1 Module battery and production method for module battery |
04/03/2014 | WO2014049892A1 Electricity storage system and control device |
04/03/2014 | WO2014049655A1 Electricity storage system |
04/03/2014 | WO2014048459A1 Transducer arrangement for a photovoltaic system, and operating method for a photovoltaic system |
04/03/2014 | WO2014047733A1 Fault detection and short circuit current management technique for inverter based distributed generators (dg) |
04/03/2014 | WO2013174528A3 Gate driver for a power converter |
04/03/2014 | US20140092655 Power Converter |
04/03/2014 | US20140092654 Method for the operation of an inverter, and inverter |
04/03/2014 | DE102013014428A1 Motoransteuervorrichtung mit einer Alarmpegelsetzeinheit Motor driving with an alarm level setting unit |
04/03/2014 | DE102012217898A1 Method for operating single ended primary inductance converter utilized in motor vehicle, involves monitoring actual duty factor of loop of converter, and switching-off switching element when actual duty factor reaches permitted duty factor |
04/03/2014 | DE102012019236A1 Control device for power supply system e.g. block-type thermal power station, measures electrical variables at electrical machine, and connects separating element with torque forming function block and monitoring function block |
04/02/2014 | CN203522806U Water-contacted protection device for intelligent handset |
04/02/2014 | CN203522537U Voltage stabilizing power supply circuit with light alarm function for rotary drum vacuum filter |
04/02/2014 | CN203522242U Portable automotive ignition emergency power supply |
04/02/2014 | CN203522164U Protective device based on microgrid short-circuit current |
04/02/2014 | CN203522163U Protective circuit for insulated gate bipolar power tube |
04/02/2014 | CN203522162U Undervoltage protection and overcurrent protection circuit |
04/02/2014 | CN203522161U Single lithium battery protection chip having precise time delay and sleep functions |
04/02/2014 | CN203522160U Cell protection circuit having secondary overvoltage/under-voltage protection function |
04/02/2014 | CN203522159U Cell protection circuit |
04/02/2014 | CN203522158U Battery protecting circuit with battery core balancing function and battery system |
04/02/2014 | CN203522157U Heavy current protective device for automobile emergency starting power supply |
04/02/2014 | CN203522156U Phase current balance protection circuit of automobile frequency converter |
04/02/2014 | CN203522155U New type flyback converter input overvoltage protection circuit |
04/02/2014 | CN203522154U Over-current protective device of frequency converter |
04/02/2014 | CN203522153U LED television backlight short circuit protection circuit and short circuit protector |
04/02/2014 | CN203522152U Motor protector for industrial wastewater treatment equipment |
04/02/2014 | CN203522151U Voltage protection device and fan |
04/02/2014 | CN203522150U Protection circuit used for brushless DC motor and brushless DC motor |
04/02/2014 | CN203522149U Electric hand drill safety control apparatus capable of changing rotation direction automatically |
04/02/2014 | CN203522148U Motor overload protection device |
04/02/2014 | CN203522147U Torsion overload protector |
04/02/2014 | CN203522146U Motor protector |
04/02/2014 | CN203522145U High-temperature automatic stop control circuit for motor of sludge dewaterer |
04/02/2014 | CN203522144U Motor safety controller for processing mill |
04/02/2014 | CN203522143U Motor stalling detection circuit |
04/02/2014 | CN203522142U Motor integrated protector for cold chain |
04/02/2014 | CN203522141U Intelligent agricultural transformer phase-loss open-phase automatic protection device |
04/02/2014 | CN203522140U Protection device for static oiling machine |
04/02/2014 | CN203522139U Current transformer secondary open-circuit rapid protection circuit |
04/02/2014 | CN203522126U Electric power overvoltage protection circuit used for industrial injection machine |
04/02/2014 | CN203513016U Power supply open-phase protection device of lift control cabinet |
04/02/2014 | CN103703673A Method and control device for protection time setting in electric drive system |
04/02/2014 | CN103703672A Method for controlling the resisting torque of a motor vehicle alternator, and system for implementing this method |
04/02/2014 | CN103703590A Lithium-ion rechargeable battery |
04/02/2014 | CN103701370A Non-salient pole synchronous motor-based out-of-step detection and resynchronization excitation control method |
04/02/2014 | CN103701369A Novel high power density DC brushless motor driver circuit |
04/02/2014 | CN103701168A Charging management method and charging management system of lithium battery |
04/02/2014 | CN103701163A Battery, aircraft with battery and battery control method |
04/02/2014 | CN103701162A Battery management system |
04/02/2014 | CN103701107A Adaptive differential protection method |
04/02/2014 | CN103701106A Relay protection method applied to micro-grid |
04/02/2014 | CN103701105A Thermal overload protection method, device and system for power electronic equipment |
04/02/2014 | CN103701104A Short circuit detection and protection method and device for multiple IGBTs (insulated gate bipolar transistors) |
04/02/2014 | CN103701103A Protective device capable of preventing over-discharge of lead-acid storage battery |
04/02/2014 | CN103701102A Constant-current discharging detection device for nickel-metal hydride battery |
04/02/2014 | CN103701101A Circuit structure for improving short-circuit protection performance of large-sized battery pack by using capacitor |
04/02/2014 | CN103701100A Switching power supply and over-voltage protection circuit thereof |
04/02/2014 | CN103701099A Low-cost inversion output short circuit protection circuit |
04/02/2014 | CN103701098A Control and protection system for current converter, and protection method thereof |
04/02/2014 | CN103701097A Protection system of motor brake |
04/02/2014 | CN103701096A Interturn protection method of TCT type controllable high-resistance triangular connecting winding |
04/02/2014 | CN103701095A Test equipment protection circuit |
04/02/2014 | CN103698640A Intelligent charging detection circuit and movable power supply |
04/02/2014 | CN102427219B Short circuit protection system and safe closing control method of three-level converter power tube |
04/02/2014 | CN102386616B Simulation verification method for relay protection coordination relationship |
04/02/2014 | CN102368606B Leakage protection method of frequency converter and apparatus thereof |
04/02/2014 | CN102315806B Smooth soft starting device of direct current motor |
04/02/2014 | CN102195523B Intelligent solar photovoltaic power supply system |
04/02/2014 | CN102097789B Over-current or short-circuit state detection circuit of insulated gate bipolar transistor (IGBT) |
04/02/2014 | CN102074937B Ranging method for adaptive transmission line fault of model |
04/01/2014 | US8689033 Power supply and data signal interface circuit with overvoltage protection |
04/01/2014 | US8688247 Lock-out, tag-out system using safety programmable logic controller |
04/01/2014 | US8687390 Active clamp DC-DC converter |
04/01/2014 | US8687389 Apparatus having a converter |
04/01/2014 | US8687335 Electronic circuit breaker of a power supply having dual output ports |
04/01/2014 | US8687332 Transistor circuit with protecting function |
04/01/2014 | US8687327 Electronic system for converting DC voltage into AC voltage |