Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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
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)
08/2012
08/29/2012CN202405760U Over-current protection circuit of frequency converter
08/29/2012CN202405759U Over-current protection circuit for direct-current switching power source
08/29/2012CN202405758U Open-phase protection device of electric motor
08/29/2012CN202405757U Operation protection device for electric motor
08/29/2012CN202405756U Explosion-proof automatic switch for energy-saving motor leakage prewarning device
08/29/2012CN202405755U Improved control structure coping with voltage shock of motor
08/29/2012CN202405754U Safety four-way valve for air conditioner
08/29/2012CN202405753U Anti-overheating motor
08/29/2012CN202405752U Motor control circuit for oil pump
08/29/2012CN202405751U Overload protection device of intelligent distribution transformer
08/29/2012CN202405750U Special explosion-proof structure for electrical equipment and power supply system
08/29/2012CN202405049U Air cooling system for power transformer
08/29/2012CN102651546A Electric motor control device for overload protection
08/29/2012CN102651545A Direct current motor lock-rotor protection circuit
08/29/2012CN101976884B Self-powdered protection device for power transmission and distribution lines
08/29/2012CN101917001B Fault sequencing method for on-line static security analysis of power system
08/29/2012CN101888188B Apparatus and method for controlling power converter
08/29/2012CN101789583B Real-time digital emulation automatic test method
08/29/2012CN101752901B Method, system, equipment and device for synchronizing data sampling at different places
08/29/2012CN101673937B Surge interference identification method during differential protection and differential protection method
08/29/2012CN101562418B Method and system for monitoring self-control energy-saving motor
08/28/2012US8254151 Power supply
08/28/2012US8254071 Method and apparatus of providing 2-stage ESD protection for high-speed interfaces
08/28/2012US8253389 Battery protection circuit and method for energy harvester circuit
08/28/2012US8253362 Overheat protection apparatus
08/28/2012US8253269 Economizer for vehicle battery disconnect
08/28/2012US8252725 Fault current limiter with a plurality of superconductiong elements, at least one of which with an electric contact between its superconducting film and its electrically conducting substrate
08/28/2012US8252724 Fault current limiter with a plurality of superconducting elements having insulated, electrically conducting substrates
08/27/2012DE202011050264U1 Vorrichtung zur induktiven Übertragung elektrischer Energie Device for inductive transmission of electrical energy
08/25/2012CA2769295A1 Wind turbine
08/23/2012WO2012110088A1 Method and arrangement for an internal failure detection in a y-y connected capacitor bank
08/23/2012WO2012110087A1 Method and arrangement for detecting an internal failure in h-bridge connected capacitor bank
08/23/2012US20120212392 System and method for passive protection of an antenna feed network
08/23/2012DE102011013837A1 Fahrzeug mit elektrischem Antrieb und Energiespeicher Vehicle with electric drive and energy storage
08/23/2012DE102011013836A1 Elektrischer Energiespeicher für Fahrzeug mit elektrischem Antrieb Electrical energy storage for vehicles with electric drive
08/23/2012DE102011004328A1 Method for bridging sub-module of modular multi-stage converter, involves determining current flowing through sub-module by diodes, and closing bypass switch only if one of diodes is laid between connection terminals and transmits current
08/22/2012EP2488230A1 Occlusion recognition in an administering apparatus
08/22/2012CN202395666U AC switch power source
08/22/2012CN202395656U Power factor correction circuit
08/22/2012CN202395505U Battery charging circuit
08/22/2012CN202395436U Switching circuit for low-voltage direct current load box
08/22/2012CN202395435U Medium and low pressure side charging protection device for transformer substation
08/22/2012CN202395434U PMC driving circuit
08/22/2012CN202395433U Low-voltage protection system for electric tool
08/22/2012CN202395432U Battery reverse connection protection circuit
08/22/2012CN202395431U Novel phase-failure protector of point switch
08/22/2012CN202395430U Soya-bean milk maker motor blocking detection circuit
08/22/2012CN202395429U Thermal protection device for motor
08/22/2012CN202395428U Digital intelligent motor protector
08/22/2012CN202395427U Intelligent controller of transformer
08/22/2012CN202395426U Auto transformer digital instrument device
08/22/2012CN202395425U On-load transformer digital instrument device
08/22/2012CN202395424U Digital instrument device of power transformer
08/22/2012CN202395423U No-load transformer digital instrument device
08/22/2012CN1667539B Voltage regulator and method of manufacturing the same
08/22/2012CN102647894A Electromagnetic shielding device for signal line control circuit protector with power surge protector
08/22/2012CN102647128A Electric tool with function of short-time on-off protection and on-off protection method therefor
08/22/2012CN102647096A Power supply apparatus and image forming apparatus
08/22/2012CN102646967A Unsymmetrical fault relay protection method of distributing line
08/22/2012CN102646966A Three-phase fault processing method of distributing line
08/22/2012CN102646965A Smart switch and power distribution network system adopting same
08/22/2012CN102646964A High-low voltage integrated control device for coal mine power center
08/22/2012CN102646963A Internal fault arc online monitoring and protecting system of distributed multi-point switch cabinet
08/22/2012CN102646962A Over temperature protection circuit used for power device
08/22/2012CN102646961A Charging overheat protection system of electric automobile
08/22/2012CN102646960A Battery pack primary loop interface protection circuit and protection method
08/22/2012CN102646959A Use of motor protection system to protect process operation
08/22/2012CN102646958A Asynchronous self-oscillating protection method and protection device of generator
08/22/2012CN102646957A Second harmonic inrush current blocking method applicable for protecting extra-high voltage regulating transformer
08/22/2012CN102646933A Power transformation system provided with 0.4-kilovolt low-voltage switch
08/22/2012CN102646481A Arrangement method of superconducting wires of superconducting cable
08/22/2012CN101916994B Large through-flow frequency division and current-distribution type separator
08/22/2012CN101867205B Device and method for maintaining lithium ion battery pack
08/22/2012CN101867172B Heat protection circuit
08/22/2012CN101814718B Microcomputer-based differential protection method of frequency-conversion and speed-regulation motor
08/22/2012CN101752841B Insulated gate bipolar transistor (IGBT) protection circuit and motor control system
08/22/2012CN101494412B Error detection device for power source converter and detection method thereof
08/22/2012CN101488656B Methods for common mode voltage-based AC fault detection, verification and/or identification
08/22/2012CN101359836B Self-switching charging circuit
08/22/2012CN101359821B Power supply system with function of short circuit detection
08/21/2012US8250274 Portable terminal and USB device
08/21/2012US8248830 Power source apparatus
08/21/2012US8248738 Switching device, high power supply system and methods for switching high power
08/21/2012US8248012 Method of determining the gain of a BEMF amplifier and relative control circuit of an induction electric motor
08/21/2012US8247354 Fault current limiter with a plurality of superconducting elements connected in a ring-shaped fashion
08/21/2012US8245525 Heat source apparatus, heat source system, and method for operating heat source apparatus
08/21/2012CA2637113C Group protection module for a switchgear arrangement and switchgear arrangement having such a group protection module
08/21/2012CA2554118C Thermal overload protection
08/16/2012US20120206842 Fault condition protection
08/16/2012DE102011122042A1 Circuit arrangement for electrical system of vehicle, has main control unit that detects charge state of battery, and auxiliary control unit that controls circuit breaker to connect electric load and main control unit with battery
08/16/2012DE102011004215A1 Ladevorrichtung für Kraftfahrzeuge sowie Verfahren zum Laden eines Speichers für elektrische Ladung in einem Kraftfahrzeug Loading device for motor vehicles and method for loading a memory for electric charge in a motor vehicle
08/15/2012EP2487781A2 Power converter and method of operation with current crowbar
08/15/2012EP2486644A1 Switching an inductive load
08/15/2012EP2486577A1 Tap changer
08/15/2012CN202385040U Permanent magnet synchronous motor controller
08/15/2012CN202385007U Electronic transformer with overload protecting function
08/15/2012CN202384793U Control system for power supply
08/15/2012CN202384757U Optical fiber latching current protection device
08/15/2012CN202384756U Silicon controlled heat radiation and protection integrated structure
08/15/2012CN202384755U Three-phase solid-state relay protector
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