| 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) |
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| 01/23/2008 | EP1563595B1 Power converter |
| 01/23/2008 | CN201011704Y High power electricity discharge protecting device for power lithium battery |
| 01/23/2008 | CN201011695Y Contact voltage regulator with superheating protection function and electric brush component used for voltage stabilizer |
| 01/23/2008 | CN100364198C Jamming protection device for moving member |
| 01/23/2008 | CN100364197C Transmission synchronization method of current differential relaying device |
| 01/23/2008 | CN100363750C Method for judging generator PT line failure |
| 01/22/2008 | US7321221 Method for operating a wind power plant and method for operating it |
| 01/22/2008 | US7320482 Semiconductor integrated circuit device |
| 01/17/2008 | WO2007050275A3 Reduction of inrush current due to voltage sags |
| 01/17/2008 | US20080013348 Adjustable speed drive protection |
| 01/17/2008 | US20080013226 External electrical energy supply for field device |
| 01/17/2008 | US20080013225 Circuit device of an override protection switch |
| 01/17/2008 | US20080012720 Current monitoring device for high voltage electric power lines |
| 01/17/2008 | DE202007014924U1 Energieterminal zur Anordnung an einem Kai Power terminal arrangement at a quay |
| 01/17/2008 | DE202006013862U1 Netzteil Power Supply |
| 01/17/2008 | DE112006000511T5 Fehlerbestimmungsvorrichtung für einen Ansteuerschaltkreis und Ansteuereinheit umfassend diese und Verfahren zum bestimmen eines Fehlers in einem Ansteuerschaltkreis Problem determination device for a drive circuit and drive unit comprising them and methods for determining a fault in a drive circuit |
| 01/17/2008 | DE102006033044A1 Device for monitoring electrical components of supply line for electrical load in thermal overload, particularly supply line of vehicle electrical system, has thermal calculation model, which calculates effective temperature |
| 01/17/2008 | DE102006032737A1 Schaltungsanordnung zur Messung der Stromaufnahme eines durch Pulsweitenmodulation gesteuerten Gleichstrommotors Circuit arrangement for measuring the current consumption of a controlled by pulse width modulation DC motor |
| 01/16/2008 | CN201008095Y Small current grounding wire-selecting device of microcomputer |
| 01/16/2008 | CN201008094Y Power supply circuit with short circuit protection |
| 01/16/2008 | CN201008093Y Voltage mutual inductor ferromagnetic resonance canceling device |
| 01/16/2008 | CN201008091Y Thermal protection circuit of intelligent charger |
| 01/16/2008 | CN201008089Y Leakage protective unit of flame-proof type vacuum feeder switch for coal mine |
| 01/16/2008 | CN101107758A Position-sensorless control of interior permanent magnet machines |
| 01/16/2008 | CN101106282A Portable large capacity power device |
| 01/16/2008 | CN101106272A Middle frequency feedback surge protector |
| 01/16/2008 | CN101106271A Integrated failure positioning protection system for transfer line |
| 01/16/2008 | CN101106270A Remote short circuit failure detection method for low voltage power grid and sensitivity protection module |
| 01/16/2008 | CN101106269A Fire protection device for row wave pipe |
| 01/16/2008 | CN101106268A A power testing sampling protection unit |
| 01/16/2008 | CN101106267A Unit thermal control intelligent protection system |
| 01/16/2008 | CN101106266A A method for realizing transformer protection based on guiding nano principle |
| 01/16/2008 | CN101106265A Over current protector circuit of electric backset decelerator controller |
| 01/16/2008 | CN101105326A Frequency-changing air conditioner power module protection device |
| 01/16/2008 | CN100362734C Spring hanging mechanism for thyristor valve |
| 01/16/2008 | CN100362733C Mechanical mounting structure for controllable series compensation thyristor valve |
| 01/16/2008 | CN100362719C Grounding protection method for stator of power generator with neutral point grounded via arc suppression coil |
| 01/16/2008 | CN100362718C Fault-tolerant complex judging self adaption high voltage parallel reactor turn-to-turn protection |
| 01/15/2008 | US7319579 Snubber circuit |
| 01/10/2008 | WO2008005928A2 Circuit interrupter with live ground detector |
| 01/10/2008 | WO2008003534A1 Method and device for recognition of a short circuit in a circuit arrangement |
| 01/10/2008 | WO2007085258A3 Power converter comprising a switching device |
| 01/10/2008 | WO2007064837A3 A multifunction hybrid solid-state switchgear |
| 01/10/2008 | WO2007038649A3 Power supply with current limiting circuits |
| 01/10/2008 | US20080010036 Electric machine |
| 01/10/2008 | US20080008910 Protective circuit module for secondary battery and battery pack using the same |
| 01/10/2008 | US20080007886 Adjustable speed drive protection |
| 01/10/2008 | US20080007884 Protection circuit for an input stage, and respective circuit arrangement |
| 01/10/2008 | US20080007228 Regulator system for alternator |
| 01/10/2008 | US20080007192 Temperature-dependent power adjustment of transmitter |
| 01/10/2008 | US20080007121 Power system with low voltage ride-through capability |
| 01/09/2008 | EP1876700A1 Ac motor controller |
| 01/09/2008 | EP1876683A1 Superconductor component with improved electrical contact |
| 01/09/2008 | EP1875782A1 Current driver circuit and method of operation therefor |
| 01/09/2008 | EP1875579A1 Method and device for closing a vehicle opening with pinch-protection monitoring |
| 01/09/2008 | EP1875327A2 Method and system for enhancing computer peripheral saftey |
| 01/09/2008 | EP1779487A4 Isolated measurement circuit for sensor resistance |
| 01/09/2008 | CN201004614Y An improved brushless fan motor control circuit |
| 01/09/2008 | CN201004608Y A full wave resonance drive power supply circuit |
| 01/09/2008 | CN201004553Y Arc over voltage limit for power transmission and distribution system and integrated device for small current grounding and line selection |
| 01/09/2008 | CN201004550Y Magnetism extinguishment over voltage protection circuit for power generator |
| 01/09/2008 | CN201004549Y Online automatic control instrument for transformer iron core current |
| 01/09/2008 | CN201002169Y LGK type inversion plasma cutting power supply |
| 01/09/2008 | CN101103509A Secondary battery protection circuit, battery pack and thermosensitive protection switch device |
| 01/09/2008 | CN101102629A Time limit protection control circuit for protection part |
| 01/09/2008 | CN101102049A Power supplier for charging power storage device based on capacity of power storage device |
| 01/09/2008 | CN101102042A A protection device for lightning strike surge protection circuit |
| 01/09/2008 | CN101102039A MOS type over-temperature protection circuit |
| 01/09/2008 | CN101101002A PLC based three lane tunneling aeration machine integrated control system |
| 01/09/2008 | CN100361375C Inrush current prevention circuit for dc-dc converter |
| 01/09/2008 | CN100361360C Switch supply source cut-off type output short-circuit protector |
| 01/08/2008 | US7317598 Electric transformer explosion prevention device |
| 01/03/2008 | WO2008000546A1 Sensorless motor temperature monitoring |
| 01/03/2008 | US20080004721 Method and Apparatus for Providing Economic Analysis of Power Generation and Distribution |
| 01/03/2008 | US20080002325 Power Supply Controller |
| 01/03/2008 | US20080002312 Methods and arrangements for generating a control signal for a power converter |
| 01/03/2008 | DE202006013422U1 Steuervorrichtung zum Ansteuern eines mit Hilfe eines Elektromotors betätigbaren Verstellmechanismus in einem Kraftfahrzeug Control apparatus for controlling an actuatable by means of an electric motor adjusting mechanism in a motor vehicle |
| 01/03/2008 | DE102006029364A1 Control circuit for direct current motor, has motor current branch, and free-wheeling diode interconnecting current branches such that diode is attached at contact point between motor and switching unit |
| 01/03/2008 | DE102006029332A1 Direct current electric motor e.g. fan motor, control unit for motor vehicle, has monitoring circuit for monitoring controller for motor, and equalization assembly damping high frequency oscillation of voltage that falls at FET |
| 01/03/2008 | DE102006029142A1 Electrical circuit protecting method for use during electrostatic discharging, involves monitoring voltage on electrical circuit with holding circuit, which is connected with electrical circuit by connection |
| 01/03/2008 | DE102006028443A1 Control unit for direct current motor, has bridge circuit with switching units, where one of switching unit is controlled corresponding to defect of two switching units in circuit such that voltage source is short circuited by half bridge |
| 01/02/2008 | EP1873884A1 Protective circuit for a converter |
| 01/02/2008 | EP1873883A1 Distance protection relay and method |
| 01/02/2008 | EP1872454A1 Arrangement comprising a capacitor module, and method for the operation thereof |
| 01/02/2008 | CN201001046Y Charging protection timer of microcomputer controlled multifunctional electric vehicle battery |
| 01/02/2008 | CN201001031Y Brushless motor Hall element protective circuit for electric vehicle |
| 01/02/2008 | CN201001030Y Current-limiting protection switch |
| 01/02/2008 | CN201001029Y Overvoltage protective device for capacitor bank |
| 01/02/2008 | CN201001028Y Single chip type switch power source and overtemperature protective circuit thereof |
| 01/02/2008 | CN201001027Y Autocontrol protective equipment of frequency converter for intelligent electricity-saving equipment |
| 01/02/2008 | CN201001026Y Device for controlling power tool |
| 01/02/2008 | CN201001025Y Distribution transformer earthing detection alarm system |
| 01/02/2008 | CN201000908Y Secondary battery having current voltage protection unit |
| 01/02/2008 | CN101099288A Dc/dc converter control circuit, and power supply apparatus, light emitting apparatus and electronic device using the same |
| 01/02/2008 | CN101098076A Transient fault power direction based medium voltage bus protection method |
| 01/02/2008 | CN101098075A Protection system and method |
| 01/02/2008 | CN101098074A Multi-section lithium ion battery pack protection circuit |
| 01/02/2008 | CN101098073A Power supply switch circuit capable of avoiding overgreat load of bus interface and related drive method |
| 01/02/2008 | CN101097818A Distance protection relay and method |
| 01/02/2008 | CN101097476A Electric power processing system and method thereof |