Patents
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)
10/2008
10/02/2008US20080239593 Failure detection in a voltage regulator
10/02/2008US20080239592 Arc flash elimination system, apparatus, and method
10/02/2008US20080238373 Fast field discharge for generator over-voltage control
10/02/2008US20080238370 Battery pack for cordless power tools
10/02/2008US20080238333 Inverter, Backlight Assembly Having the Same and Display Apparatus Having the Same
10/02/2008US20080238268 Brushless automotive alternator having easily-replaceable protective resistor
10/02/2008US20080238217 Fault-tolerant permanent magnet machine with reconfigurable flux paths in stator back iron
10/02/2008US20080236886 Panel box
10/01/2008EP1975403A1 Feed limiting device for limiting feedings to electrical components and control device
10/01/2008EP1974431A2 A converter station
10/01/2008EP1974430A1 A transmission system
10/01/2008EP1974429A1 A converter station
10/01/2008CN201126963Y Communication lightning protection box
10/01/2008CN201126962Y Five-prevention intelligent unlocking and uninterrupted maintenance apparatus for distribution system
10/01/2008CN201126961Y Intelligent protective circuit for charging lithium cell
10/01/2008CN201126960Y Electronic type simple motor protector
10/01/2008CN201126959Y Protective circuit capable of preventing compressor from demagnetization
10/01/2008CN201126958Y Motor temperature, current protective circuit, protector as well as stirring machine with protector
10/01/2008CN201126957Y Protective circuit for voltage transformer
10/01/2008CN201126754Y Transformer earthing component system in power system for mine
10/01/2008CN101278454A Abrupt metal-insulator transition device, circuit for removing high-voltage noise using the abrupt metal-insulator transition device, and electrical and/or electronic system comprising the circuit
10/01/2008CN101278453A Wind mill power flow control with dump load and power converter
10/01/2008CN101278452A Method and system for through fault detection in electrical devices
10/01/2008CN101277089A Motor drive apparatus and motor drive method
10/01/2008CN101277057A Overload protection delay circuit for switching power supply
10/01/2008CN101277021A Protection device for assembled cell, and battery pack unit
10/01/2008CN101277019A Battery electric power output apparatus
10/01/2008CN101277012A Fast impedance protection technique immune to dynamic errors of capacitive voltage transformers
10/01/2008CN101277011A Self-adjusting voltage filtering technique compensating for dynamic errors of capacitive voltage transformers
10/01/2008CN101277009A Vehicle power supply circuit as well as semiconductor protection control system of electric apparatus electronic equipments
10/01/2008CN101277008A Arc flash elimination apparatus and method
10/01/2008CN100423444C Generator
10/01/2008CN100423395C Protection apparatus and method for providing protection function in said protection apparatus
10/01/2008CN100423394C Method for providing protection function in distribution network
10/01/2008CN100423393C Protective circuit
10/01/2008CN100422899C Regulating apparatus of output voltage
09/2008
09/30/2008US7430132 Medium voltage inverter system
09/30/2008US7429836 Motor driver circuit, control method thereof, and electronic apparatus
09/30/2008CA2625448A1 A self-adjusting voltage filtering technique compensating for dynamic errors of capacitive voltage transformers
09/30/2008CA2625391A1 Arc flash elimination apparatus and method
09/25/2008WO2008115255A1 Method for protecting an electric generator
09/25/2008WO2008114734A1 Accumulation system
09/25/2008WO2008114650A1 Circuit protection device
09/25/2008WO2008113742A2 Compact secondary substation comprising an arcing fault protection system, a method for arcing fault protection in a compact secondary substation, and a control unit for performing the method
09/25/2008WO2008113710A1 Method for the automatic adjustment of a protective device having an excess-current release, particularly a low-voltage circuit breaker
09/25/2008WO2008113308A1 Method for the production of an error signal indicating an impermissible load condition of an electric motor and electric motor protection device for performing said method
09/25/2008US20080232976 Shower flow simulator
09/25/2008US20080232145 Inverter Circuit with Distributed Energy Stores
09/25/2008US20080232006 GIC reducer
09/25/2008US20080232005 Method for protecting an electric generator
09/25/2008US20080232004 Circuit For Effective Quench Heating in Superconducting Magnets
09/25/2008US20080231240 High voltage protection for a thin oxide cmos device
09/25/2008DE102007028929B3 Messfühler zum Einsatz bei einer Leistungselektronik Sensor for use in a power electronics
09/25/2008DE10028492B4 System zum Steuern eines netzgeführten Wechselstrom-Synchronmotors System for controlling a line-commutated AC synchronous motor
09/25/2008CA2680861A1 Circuit protection device
09/24/2008CN201122850Y Universal charger of electric bicycle
09/24/2008CN201122849Y Dynamic monitoring apparatus for inside DC-DC unit of monitor
09/24/2008CN201122841Y Intelligent synthetic compensating gear
09/24/2008CN201122838Y Heater protecting equipment of intelligent electronic cake clamping machine
09/24/2008CN201122837Y Device for detecting single-string lithium ion battery set overflowing protection
09/24/2008CN201122836Y Power capacitor protector
09/24/2008CN201122835Y Special mutual inductor for motor protector
09/24/2008CN201122834Y AC/DC dual-purpose motor protector
09/24/2008CN201122268Y Electric power controller used for USB equipment
09/24/2008CN101272092A Control circuit and controlling method of switching power supply system
09/24/2008CN101272057A Portable mobile charging power supply
09/24/2008CN101272049A Magnetic controlled shunt reactor exciting winding casing tube flashover detecting method and circuit
09/24/2008CN101272047A Five-in-one intelligent digital general air conditioner protector
09/24/2008CN101271141A Fault travelling wave network locating method based on travelling wave time difference
09/24/2008CN100421488C Cell phone with solar power supply function
09/24/2008CN100421328C Switch power supply under-voltage protecting circuit for preventing starting by mistake and under-voltage protecting method
09/24/2008CN100421327C Transformer bias protector of large power power electronic appliance
09/23/2008US7428377 Focusing drive apparatus
09/23/2008US7428133 Protection device of a surge protector
09/23/2008US7427842 Series motor and method of controlling the same
09/18/2008US20080225559 Switching-mode power supply
09/18/2008US20080225447 Motor start circuit
09/18/2008US20080222836 Central vacuum cleaning system control subsytems
09/18/2008DE102007010515B3 Electrical pluggable connection for motor vehicle, has locking element for locking basic housing in contact position
09/17/2008EP1971007A1 System and method for fault protection in compact secondary substations
09/17/2008EP1969693A1 Protective circuits for secondary battery packs
09/17/2008EP1216499B1 Electronically commutable motor
09/17/2008CN201118963Y Multi-sound channel electronic tube amplifier power circuit
09/17/2008CN201118515Y Multi-shift control adjustable three phase asynchronous electromotor for oil drawer
09/17/2008CN201118514Y Economic operation controller for electromotor
09/17/2008CN201118508Y Slot onboard generator control system
09/17/2008CN201118498Y Power circuit device for switch magnetic resistance electromotor including intelligent power module
09/17/2008CN201118495Y Electromotor-held brake loop control circuit
09/17/2008CN201118481Y Solar remote controller
09/17/2008CN201118464Y Pure sine wave reverser
09/17/2008CN201118455Y A power adapter for adjustable output voltage
09/17/2008CN201118281Y Feeder line automated terminal
09/17/2008CN201118280Y Low-voltage electric network automatic monitoring system
09/17/2008CN201118258Y DC panel integrated control device
09/17/2008CN201118257Y Output voltage adjustable external type energy supply
09/17/2008CN201118235Y Combined frequency conversion-type electricity saver
09/17/2008CN201118219Y Differential -type power distribution network automated control device
09/17/2008CN201118218Y Controller for preventing alternating current contactor adhesion
09/17/2008CN201118217Y High-voltage circuit-breaker cart
09/17/2008CN201118216Y Low-voltage filter arrangement protector