Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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
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)
06/2012
06/07/2012US20120140370 Protection Circuit and Protection Method
06/07/2012US20120140369 Protective device
06/07/2012US20120140368 Hardware Overvoltage Disconnecting Circuit
06/07/2012US20120140367 Protection lockout in substation automation
06/07/2012US20120140365 Dual-comparator restricted earth fault protection
06/07/2012US20120139741 Over-current protection apparatus
06/07/2012US20120139737 Photovoltaic module and combination of several photovoltaic modules
06/07/2012CA2818183A1 Dual-comparator restricted earth fault protection
06/06/2012EP2461457A1 Circuit protection
06/06/2012EP2460245A2 Method for operating an electrical power supply network
06/06/2012EP2460022A1 Device and method for providing electrical energy at a load circuit
06/06/2012EP1730827B1 Device for deviating overvoltages comprising one or several parallel mounted overvoltage limiting elements arranged in a structural unit
06/06/2012CN202268737U 一种矿用隔爆兼本质安全型双路电源 One kind of mine explosion-proof and intrinsically safe dual power
06/06/2012CN202268695U 一种包括过电流过热脱扣指示装置的电涌保护器 Comprising a thermal overcurrent trip indicating device surge protector
06/06/2012CN202268690U Overload protection circuit of transformer
06/06/2012CN202268687U 一种分组输出保护电路 A packet output protection circuit
06/06/2012CN202268681U Under-voltage and over-current protection device for three-phase generating set
06/06/2012CN202268677U 一种脉动直流漏电、过电压保护芯片 One kind of pulsating DC leakage, over-voltage protection chip
06/06/2012CN202268676U 保护开关 Protection switch
06/06/2012CN102487221A Digital power storage device
06/06/2012CN102487189A Automatic shutdown protection device of portable electronic product under abnormal working state
06/06/2012CN102487188A Resettable overvoltage and under-voltage protection switch
06/06/2012CN102487187A Power supply detection and control circuit
06/06/2012CN101485059B Circuit interrupter with live ground detector
06/06/2012CN101345173B Group insulation module and switching gear assembly with such a group insulation module
06/05/2012US8194381 Electrical ground transient eliminator assembly
06/05/2012US8194380 Endoscope apparatus
06/05/2012US8194377 Driver and over-current protection circuit therein
06/05/2012US8194376 Energy storage discharge circuitry
06/05/2012US8194375 Open circuit voltage protection system and method
06/05/2012US8194374 Differential element with harmonic blocking and harmonic restraint operating in parallel
06/05/2012US8194368 Protective electrical wiring device with a center nightlight
05/2012
05/31/2012WO2012071134A1 Circuit protection apparatus for photovoltaic power generation systems
05/31/2012US20120134063 Relocatable power tap with surge protector
05/31/2012US20120134058 Method for detecting arcs in photovoltaic systems and such a photovoltaic system
05/31/2012US20120133288 Circuit structure capable of straight/reverse connection of positive and negative electrodes of an input power source
05/31/2012US20120133143 Lightning strike detector for hollow structure, wind turbine rotor blade, and wind turbine generator equipped with the same
05/30/2012EP2457313A2 Method and apparatus for detection and control of dc arc faults
05/30/2012CN202262003U High-accuracy electrodeless lamp frequency drive module with overload protection
05/30/2012CN202261942U Light emitting diode constant current driver with protection circuit
05/30/2012CN202261138U Power-on control circuit with time-limited protection
05/30/2012CN202260556U Multifunctional charger
05/30/2012CN202260545U Standby energy storage power management system for coal mine electronic equipment
05/30/2012CN202260499U Solar power supply controller
05/30/2012CN202260436U System overvoltage damping cabinet
05/30/2012CN202260417U Light-emitting diode protective circuit
05/30/2012CN202260408U Ball flashing and grinding machine tool main motor intelligent real time monitoring protection system
05/30/2012CN202260397U Remote current overload monitoring alarming device for neutral line of distribution transformer
05/30/2012CN202260394U Current transformer secondary side overvoltage protection device
05/30/2012CN202260390U High-reliability time-delay residual current protector
05/30/2012CN202260389U Earth leakage protection apparatus
05/30/2012CN202260388U Earth leakage protection device
05/30/2012CN202260387U Low-voltage molded case circuit breaker with residual current protection function
05/30/2012CN202260386U Differentiation protection device for symmetric load transmission equipment
05/30/2012CN202260385U Electromagnetic stirring ground fault detection device
05/30/2012CN202260384U Test power supply under-voltage protector
05/30/2012CN202260383U Active arrester for police radio transfer communication base station
05/30/2012CN202260382U Lightning protection power distributor with double tripping function
05/30/2012CN202260381U Test power supply overvoltage protector
05/30/2012CN202260380U Over-voltage and under-voltage protector for test power supply
05/30/2012CN202260379U Automatic control safe power supply
05/30/2012CN202260378U Leakage protector
05/30/2012CN202260377U Light emitting diode (LED) lamp over-current protection circuit
05/30/2012CN202260376U DC source output short circuit protective device
05/30/2012CN202260375U Circuit detection protecting device
05/30/2012CN202260374U Earth leakage protection device
05/30/2012CN202259985U Plug with power-off protection function
05/30/2012CN202259980U Plug with ground wire live protection mechanism
05/30/2012CN202259066U Multipolar/monopolar low-voltage intelligent circuit breaker
05/30/2012CN202257844U Alarming box for telecom machine room
05/30/2012CN202243276U High-voltage electrical box with current divider of electric vehicle
05/30/2012CN1543604B Data processing system having an on-chip background debug system and method therefor
05/30/2012CN102484365A 故障相选择和故障类型确定的方法 Fault phase selection and fault type determines the method
05/30/2012CN102484364A System and method for over-voltage protection of a photovoltaic system with distributed maximum power point tracking
05/30/2012CN102480121A 一种基于自恢复功能的负载过流保护方法 A load current protection method based on self-recovery capabilities
05/30/2012CN102480119A 一种电涌保护器 One kind of surge protectors
05/30/2012CN102480118A 一种用于大功率电阻器的智能监控装置 Intelligent monitoring device for a high-power resistor
05/30/2012CN102479624A 低压自动刀开关 Low-voltage automatic knife switch
05/30/2012CN102478946A 机架式服务器装置 Rackmount server device
05/30/2012CN102478614A 电流互感器断线检测方法、装置及继电保护设备 CT disconnection detection method, apparatus and protective equipment
05/30/2012CN102478596A 一种ao信号调理装置 One kind of signal conditioning means ao
05/30/2012CN101872958B Input voltage under-voltage protection circuit of switching power supply
05/30/2012CN101741053B Power supply device
05/30/2012CN101741050B Device and method for alarming on interruption of power supply, xDSL outdoor chassis and xDSL system
05/30/2012CN101728819B Intelligent switch and control method thereof
05/30/2012CN101710685B Intelligent recloser
05/30/2012CN101702507B Method and device for essential safety anti-explosion based on dynamic monitoring and cut-off of electric spark
05/30/2012CN101702506B Method and device for rapidly detecting short-circuit fault of power system
05/30/2012CN101588063B High power low residual voltage lightning protection module
05/30/2012CN101447663B A hardware protection circuit
05/30/2012CN101369730B Zero-pharse harmonic reduction device having protection function of overload
05/29/2012US8189314 Current in-rush limiting circuit using switchable current limiting arrangement
05/29/2012US8189313 Fault detection and handling for current sources
05/29/2012US8189312 Circuit arrangement for detecting undervoltage in an energy source
05/29/2012US8189311 Circuit breaker control
05/29/2012US8189310 CMOS integrated circuit
05/29/2012US8189308 Integrated circuit
05/29/2012US8189307 Composite type electric circuit breaker and method thereof
05/29/2012US8189306 Dynamic grounding system and method
05/24/2012WO2012067342A1 Lightning protection apparatus using tn-c common ground
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