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)
11/2007
11/21/2007CN101075498A Method and device for inhibiting transformer no-load switchon surge
11/21/2007CN101074982A Method and apparatus for establishing transformer testable redundant magnetic field
11/21/2007CN101074978A Method for measuring power-supply grounded resistance triple-bridged arm of electric system
11/21/2007CN100350709C Positive and zero sequence fault component braking method for preventing transformer protection from malfunction
11/21/2007CN100350708C Maximum changing carrent zero-sequence fault component braking method for preventing malfunction for transformer protection
11/21/2007CN100350707C Split-phase zero-sequence fault component braking method for preventing malfunction for transformer protection
11/21/2007CN100350706C Maximum alternating and zero sequence braking method for preventing transformer protection from malfunction
11/21/2007CN100350705C Maximum current zero sequence braking method for preventing transformer protection malfunction
11/21/2007CN100350704C Alternating and Zero Sequence braking method for preventing transformer protection from malfunction
11/21/2007CN100350703C Phase-splitting integrated zero-sequence method for preventing voltage transformer differential protection unwanted operation by utilizing fault components
11/21/2007CN100350702C Phase sequence synthesized integration method for preventing multiple-branch voltage transformer differential protection unwanted operation by utilizing fault components
11/21/2007CN100350701C Integrated phase-splitting difference stream method for preventing voltage transformer differential protection unwanted operation by utilizing fault components
11/21/2007CN100350700C Phase-splitting difference stream method for preventing multiple-branch voltage transformer differential protection unwanted operation by utilizing fault components
11/21/2007CN100350699C Negative sequence synthesized brake device for preventing multiple-branch voltage transformer differential protection unwanted operation by utilizing fault components
11/21/2007CN100350698C Positive sequence synthesized brake device for preventing multiple-branch voltage transformer differential protection unwanted operation by utilizing fault components
11/21/2007CN100350697C Negative sequence differential flow integrated brake device for preventing multiple-branch voltage transformer differential protection unwanted operation
11/21/2007CN100350696C Negative sequence synthesized brake device for preventing multiple-branch voltage transformer differential protection unwanted operation
11/21/2007CN100350695C Integrated difference stream brake device for preventing voltage transformer differential protection unwanted operation by utilizing fault components
11/21/2007CN100350694C Integrated differential flow brake device for preventing voltage transformer differential protection unwanted operation
11/21/2007CN100350693C Switching fault detection control device for compensation capacitance
11/21/2007CN100350606C Voltage variable material for direct application and devices employing same
11/21/2007CN100350349C Battery capacity predicting method, Battery unit and apparatus using battery unit
11/20/2007US7298149 Fault location using measurements of current and voltage from one end of a line
11/18/2007CA2589635A1 Power restoration system for electrical power network
11/15/2007WO2007129469A1 Power transducing device
11/15/2007WO2007128772A1 Control unit for an electric motor, in particular for a fan motor
11/15/2007WO2007128763A2 Power supply system and method
11/15/2007WO2007092151A3 Coordinated fault protection system
11/15/2007WO2007050815A3 System and method of over voltage control for a power system
11/15/2007US20070263328 Circuit including a superconducting element and a switch, a system including the circuit, and a method of using the system
11/15/2007DE19600547B4 Schutzschaltung für einen Umrichter für ein elektrisches Netzsytem Protection circuit for a power converter for an electric Netzsytem
11/15/2007DE102006048576A1 Motorsteuervorrichtung The motor control apparatus
11/15/2007DE102006023324A1 Erfassung und Begrenzung maximaler Statorströme Detection limit and maximum stator
11/14/2007CN200976560Y Voltage regulator for heavy-loading automobile
11/14/2007CN200976559Y PLC controlled silicon still excitation control mechanism
11/14/2007CN200976548Y Large power electrolysis and rectification monitoring system
11/14/2007CN200976507Y Energy-saving charger
11/14/2007CN200976502Y Electric power output steering circuit
11/14/2007CN200976492Y Ground transformer neutral point DC current suppression device
11/14/2007CN200976491Y Ultra-high voltage line protective equipment
11/14/2007CN200976490Y Standing output overvoltage protection circuit
11/14/2007CN200976489Y Rectifier transformer transverse bracing differential current protection apparatus
11/14/2007CN200976486Y Numerical control synthetic protection monitoring instrument
11/14/2007CN200976034Y Directly-displayed low current grounding detector
11/14/2007CN101071988A Power-supply supplying device with anti-electrophoresis function
11/14/2007CN101071986A Power supply circuit device and electronic apparatus provided therewith
11/14/2007CN101071959A Intellight voltage-stabilizing protection two-layer stator winding permanent-magnetic generator
11/14/2007CN101071949A Charge control circuit
11/14/2007CN101071944A Comprehensive protection device and method for mining hierarchical-locked explosion-isolated vacuum electromagnetic starter
11/14/2007CN100349347C Large-scale steamer generator neutral point lead-out mode and arrangement protecting method
11/13/2007US7296104 Automated calibration of I/O over a multi-variable eye window
11/13/2007US7295897 Mapping a plurality of sensors to respective zones in a fan control system
11/13/2007US7295894 Method for initializing a power-activated adjusting device and device for implementing said initialization method
11/13/2007US7295415 Circuits for circuit interrupting devices having automatic end of life testing function
11/13/2007US7295412 Protection circuit for power management semiconductor devices and power converter having the protection circuit
11/08/2007WO2007104733A3 Electronic tripping unit for a motor-circuit breaker of an electric motor
11/08/2007WO2006047730A3 Safety interface system
11/08/2007US20070258274 Medium frequency power generator
11/08/2007DE202007012474U1 Optische Signaleinrichtung für elektrische Überwachungsgeräte The optical signal device for electrical monitoring devices
11/08/2007DE102006021256A1 Motorstartschaltkreis Motor start circuit
11/07/2007EP1852951A1 Power supply system and method
11/07/2007EP1756926B1 Method for error handling in a converter circuit for wiring of three voltage levels
11/07/2007EP1566881B1 Controller of ac generator for vehicle
11/07/2007EP1535081B1 Fault location using measurements of current and voltage from one end of a line
11/07/2007EP1290770B1 Method for controlling the displacement of a part, displaced by an electromotor, of a closure device in a motor vehicle
11/07/2007CN200973022Y Monobattery or subbatteries protection circuit and batteries equalizing discharge control device
11/07/2007CN200973018Y AC lightning-protection voltage-stabilized source for field communication equipment
11/07/2007CN200973017Y Power-supply protector of high power flexible AC electric-saving cabinet
11/07/2007CN200973016Y Automatic overvoltage, overcharge and electric vehicle batter charge protector
11/07/2007CN200971869Y Energy-saving circulation water purification pump with built-in motor
11/07/2007CN101068096A Booster circuit with protection function and electric device
11/07/2007CN101068084A Moving energy station
11/07/2007CN101068079A Method for realizing transmission line protection based on admittance principle
11/07/2007CN101068078A Small current earthing wire-selecting method
11/07/2007CN101068077A Shunt protection circuit and method therefor
11/07/2007CN101068076A Method and circuit for realizing multi-section serial secondary battery protection with unit management
11/07/2007CN101067508A Low-voltage working fixed speed air conditioner and control method thereof
11/07/2007CN100347442C Method of controlling wind turbine connected to electric utility grid during malfunction therein, control system, wind turbine and family hereof
11/06/2007US7292460 Converter circuit for switching a large number of switching voltage levels
11/06/2007US7292445 Active integrated rectifier regulator
11/06/2007US7292018 Reverse current preventing circuit with an automatic correction of reference
11/06/2007US7292009 Hybrid type working machine
11/06/2007US7292007 Vehicular electric generation control apparatus and related method of detecting electric generation status
11/06/2007US7291998 Electrical control safety system comprising photocells or equivalent sensors
11/02/2007CA2586812A1 High current capable circuit testing closer apparatus and method
11/01/2007WO2007122672A1 Electric power storing apparatus
11/01/2007WO2007121888A1 Device for operating an electric motor
11/01/2007WO2004068540A3 Hardmask with high selectivity for ir barriers for ferroelectric capacitor manufacturing
11/01/2007US20070253125 Semiconductor integrated circuit
11/01/2007CA2613314A1 Power storage apparatus
10/2007
10/31/2007EP1850439A1 Power line communication method
10/31/2007EP1850438A2 Protection device for load circuits
10/31/2007EP1849224A1 Device and method of sensing temperature of a rotating electromagnetic machine
10/31/2007EP1848605A1 Roof system for vehicles, comprising a sealing element
10/31/2007EP1155488B1 Selective electronic tripping element
10/31/2007DE10245144C5 Überspannungs-Schutzanordnung mit einer Funkenstrecke als Grobschutzelement Surge protection order with a spark gap as coarse protection element
10/31/2007DE102006043631A1 Maschinenstarter mit Schutzfunktion gegen Überstrom Engine starter with protection against overcurrent
10/31/2007DE102006020058A1 Electrical stepper motor e.g. two-phase-claw pole-stepper motor, operating method for motor vehicle, involves activating determination of blocking condition only after free run of stepper motor for predetermined period is sensed in advance
10/31/2007DE102006019467A1 Electrical network`s short-circuit detecting method for use in e.g. industry, involves determining actual values as intensity of current flowing in electrical network, and detecting short-circuit when threshold value exceeds threshold value
10/31/2007DE102006018054A1 Vorrichtung zum Betreiben einer elektrischen Maschine Apparatus for operating an electrical machine
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