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