Patents
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)
05/2013
05/15/2013CN202940574U New type undervoltage protection circuit in motor driving chip
05/15/2013CN202940564U Three-phase leakage circuit breaker
05/15/2013CN202940563U Intelligent leakage detection grounding resistor protection device
05/15/2013CN202940562U Under-voltage protection alarm device
05/15/2013CN202940561U Dedicated explosion-proof power supply device for field operation
05/15/2013CN202940560U Boost circuit with output over-current protection function
05/15/2013CN202940559U Zero sequence voltage secondary loop capable of realizing automatic on-off response
05/15/2013CN202940558U Safety relay protection circuit
05/15/2013CN202940557U Digital type electric disc
05/15/2013CN202940556U Mining explosion-proof type low-voltage power grid multi-level electric leakage protector
05/15/2013CN103109429A Fault parameter indicator device and related methods
05/15/2013CN103107515A Reclosing device with power factor monitoring function
05/15/2013CN103107514A Detection and protection method and system of electricity leakage on outer surface of electrical equipment
05/15/2013CN103107513A High-capacity intelligent high-speed switch
05/15/2013CN103107512A Proximity detection circuit having short protection
05/15/2013CN103107511A Reclosing device with double-nixie-tube circular display
05/15/2013CN103107510A Electricity self-generating reclosing controller
05/15/2013CN103107509A Full automatic relay protection fixed value setting calculation and validation method based on spreadsheet
05/15/2013CN103107508A Insulation monitoring and protecting control device and method for multichannel underwater motor power supply loop
05/15/2013CN102364796B Voltage and phase sequence protection circuit
05/15/2013CN101820164B Current leakage detection module and current leakage protection circuit breaker with current leakage detection module
05/15/2013CA2794164A1 Ultra-low sensitivity ground fault circuit interrupter
05/14/2013US8442944 System and method for generating and managing quick recovery volumes
05/14/2013US8441770 Voltage spikes control for power converters
05/14/2013US8441769 Power supplies
05/14/2013US8441767 Overcurrent protection circuit
05/14/2013US8439270 Semiconductor device and wireless tag using the same
05/10/2013WO2013066945A1 Vehicle communication component and process having active overvoltage protection
05/10/2013WO2013066708A1 Process control field device with circuitry protection
05/10/2013WO2013066538A1 Circuit protection device
05/10/2013WO2013064556A1 Ground power leakage detection for peripheral printed circuit boards
05/10/2013CA2847354A1 Circuit protection device
05/09/2013US20130114176 Protection device to be associated in an electrical circuit with a current-breaker device of increased service life
05/09/2013US20130114175 Switching mode power supply including surge protection circuit and image forming apparatus including the same
05/09/2013US20130114174 Electrostatic discharge protection for electrical components, devices including such protection and methods for making the same
05/09/2013US20130114172 Esd protection circuit
05/08/2013EP2590287A1 Current differential relay apparatus
05/08/2013EP2589973A1 Ground power leakage detection for peripheral printed circuit boards
05/08/2013EP1408594B1 DC ground fault detector and system-interconnected generation device using the DC ground fault detector
05/08/2013CN202930997U Automatic sweeper backwashing power supply based on super capacitor
05/08/2013CN202930907U Breaker
05/08/2013CN202930906U Breaker
05/08/2013CN202930905U Multifunctional breaker
05/08/2013CN202930904U Single-phase overvoltage protector
05/08/2013CN202930903U Overvoltage and overcurrent protection circuit
05/08/2013CN202930902U Multifunctional intelligent protector for electric appliances
05/08/2013CN202930901U Power supply protection circuit for liquid crystal screen TCON plate
05/08/2013CN202930900U Inductive thunder overvoltage protector
05/08/2013CN202930899U Direct current overcurrent protection device
05/08/2013CN202930898U AC heating circuit protective device
05/08/2013CN202930748U Switch cabinet
05/08/2013CN103094887A Overcurrent and over-temperature protection control circuit
05/08/2013CN103094883A Intrinsic safety type power circuit and device with intrinsic safety type power circuit
05/08/2013CN103094881A Digital transformer protection and monitoring device
05/08/2013CN103094880A Domain relay protection
05/08/2013CN103094878A Leakage detecting and protecting circuit with function of preventing and protecting impact of lightning
05/08/2013CN103094877A Undervoltage-overvoltage protection device and method
05/08/2013CN103094876A Numerical control overloaded method for cluster circuit
05/08/2013CN103094875A Solid state power controller based on microcontroller
05/08/2013CN103092147A Process control field device with circuitry protection
05/08/2013CN103092109A Control circuit of stainless domestic garbage disposer
05/08/2013CN103088567A Power-off protective device for quilting machines
05/08/2013CN102044381B Precision tripping device
05/08/2013CN101931208B Leakage current detection protection circuit
05/08/2013CN101908752B Overload protector
05/08/2013CN101882789B Integrated high-voltage intelligent phase selection permanent-magnetic circuit breaker
05/08/2013CN101848141B Managing resources for ip networking
05/08/2013CN101842953B Short-circuit recognition method for an electric network
05/08/2013CN101711070B LED direct-current input control circuit
05/08/2013CN101594007B Expandable energy storage for portable electronic devices
05/07/2013US8437114 ESD Protection Device
05/07/2013US8437112 Circuit breaker with time-delay function
05/07/2013US8437110 Protection apparatus of load circuit
05/07/2013US8437109 Power clamping circuit with temperature compensation
05/07/2013US8437108 Protective device with separate end-of-life trip mechanism
05/02/2013WO2013062674A1 Power distribution apparatus for separate electrical over current and short circuit protection
05/02/2013WO2013060591A1 Improvement of the motor protection of a dc drive
05/02/2013WO2013060382A1 Method and protective device for identifying a ground fault in a polyphase electrical energy supply network having a compensated or isolated star point
05/02/2013US20130108305 Electric power relaying unit and image forming apparatus having the same
05/02/2013US20130107413 Portable and Modular Electrical Pegboard System
05/02/2013US20130107412 Installation switching device with a current sensing unit
05/02/2013US20130107410 Apparatus and method for measuring the dissipation factor of an insulator
05/02/2013US20130107408 Vehicle communication component and process having active overvoltage protection
05/02/2013US20130107407 System for electric distribution system protection and control and method of assembling the same
05/02/2013US20130107406 Process control field device with circuitry protection
05/02/2013US20130107399 Harmonic protection method for capacitor bank
05/02/2013DE102012200660A1 Charging device for attachment to electrical supply network for supplying current to electric passenger car, has triggering device for generating signal delayed with delay time if current difference is smaller than upper trigger value
05/02/2013DE102011085253A1 Verbesserung des Motorschutzes eines Gleichstromantriebs Improvement of motor protection of a DC drive
05/02/2013CA2852892A1 Power distribution apparatus for separate electrical over current and short circuit protection
05/01/2013EP2587628A1 Wireless electric power receiving device and wireless electric power transmission system
05/01/2013EP2587604A1 A fault protection device
05/01/2013EP2587603A2 Active current surge limiters with inrush current anticipation
05/01/2013EP2587602A2 Active current surge limiters with watchdog circuit
05/01/2013EP2587601A2 Active current surge limiters with disturbance sensor and multistage current limiting
05/01/2013CN202918187U High power switch power supply possessing soft start and fault protection
05/01/2013CN202917961U Self-recovery type over-voltage and under-voltage protection circuit breaker
05/01/2013CN202917959U Lightning protection module
05/01/2013CN202917958U Bus differential protection system for high-voltage direct-current flexible closed-loop intelligent power distribution network
05/01/2013CN202917949U Intelligent recognition control system for malignant loads
05/01/2013CN202917948U Protective device for electrical wiring
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