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)
04/2014
04/29/2014US8710784 Vehicle seating system and method for reducing fatigue with changing actuator movement
04/29/2014US8710780 Motor drive component verification system and method
04/24/2014WO2014062397A1 Full-duplex signaling for arc event protection
04/24/2014WO2014061376A1 Charging control device
04/24/2014WO2014060527A1 System for protection of a plurality of dc voltage sources
04/24/2014WO2014060181A1 Protection circuit arrangement for a multi-voltage power supply
04/24/2014WO2014060085A2 Method of operate is-limiters in ring systems
04/24/2014WO2014060014A1 Method for operating a power transformer
04/24/2014WO2013132099A3 Electric unit for a pump-storage power plant
04/24/2014WO2013007268A3 Power generation system and method for operating a power generation system
04/24/2014US20140112033 Power supply apparatus
04/24/2014US20140112032 Wind turbine fault detection circuit and method
04/24/2014US20140111897 Method And Device For Protection Zone Selection In A Multiple Busbar Arrangement
04/24/2014US20140111890 Bi-directional bipolar junction transistor for high voltage electrostatic discharge protection
04/24/2014US20140111889 Methods to avoid a single point of failure
04/24/2014US20140111888 Fault detection system and method for overspeed protection speed sensors
04/24/2014DE19945824B4 Regeleinrichtung für ein elektrisch betriebenes Gebläse Control device for an electrically operated fan
04/24/2014DE102012219389A1 Battery for use in motor car, has signal transmitter arranged in region of pressure-sensitive membrane, and electrical switching elements operatively connected with transmitter and formed to disconnect main electric current of battery
04/24/2014DE102012219082A1 Sicherheitsvorrichtung zur Anordnung in einer Batteriezelle einer Lithium-Ionen-Batterie, Lithium-Ionen-Batteriezelle mit Sicherheitsvorrichtung A safety device for arrangement in a battery cell of a lithium-ion battery, lithium-ion battery cell with safety device
04/24/2014DE102012110110A1 Wechselrichter, Verfahren zum Betreiben eines Wechselrichters und Energieversorgungsanlage mit einem Wechselrichter Inverter, method of operating an inverter and power supply system with an inverter
04/24/2014DE102012020718A1 Method for detection and disconnection of electrical short circuit or arc for vehicle e.g. electric vehicle, involves adjusted switching element within second voltage level based on short circuit or arc detected between voltage levels
04/23/2014EP2722954A1 Method of operate Is-limiters in ring systems
04/23/2014EP2721728A2 Alternator with voltage regulation
04/23/2014EP2721718A1 Power receiving device, power transmitting device, vehicle, and contactless power supply system
04/23/2014EP2721703A1 Method and device for reliably monitoring a three-phase motor
04/23/2014CN203562941U A switching power supply circuit with a driving chip power overvoltage protection function
04/23/2014CN203562789U Lithium battery and vehicle emergency start power supply using same
04/23/2014CN203562768U Reverse connection prevention circuit of storage battery
04/23/2014CN203562767U Lithium battery protective plate for starting power supply
04/23/2014CN203562766U Over-voltage and under-voltage protection circuit
04/23/2014CN203562765U Control device of current transformer current-limiting protection system
04/23/2014CN203562764U Motor overload and overheat protection device for sorter
04/23/2014CN203562763U Over-torque protective device
04/23/2014CN203562762U Low-capacity motor control circuit
04/23/2014CN203562761U Motor protection switching circuit
04/23/2014CN203562760U Circuit for performing low-voltage tripping circuit protection for SF6 in converter transformer DC side bushing
04/23/2014CN203562759U Leakage inductance protection structure of distribution transformer
04/23/2014CN203562758U Intelligent passive relay protection device
04/23/2014CN203562757U Series reactor protection device
04/23/2014CN103748735A Battery energy draining method and system
04/23/2014CN103746626A Locked rotor detection method and apparatus of motor control, and motor driver
04/23/2014CN103746620A Motor driver and air conditioner
04/23/2014CN103746570A Rectifier and electric power equipment
04/23/2014CN103746569A High-power-factor constant-voltage constant-current programmable switching power supply and power supply method
04/23/2014CN103746551A Current closed loop combined regulation system of bidirectional triple DC (direct current)-DC converter
04/23/2014CN103746547A Driving circuit of firefighting emergency power supply
04/23/2014CN103746467A Electric field coupling-based inductive energy-obtaining device and implementation method thereof
04/23/2014CN103746357A A relay protection method of a DC traction power grid
04/23/2014CN103746356A Digital communication current protection technology based on IEC 61850 protocol
04/23/2014CN103746355A Intelligent sectionalizer
04/23/2014CN103746354A Distribution network fault isolation method based on transformer substation overcurrent protection
04/23/2014CN103746353A Self-healing control system of intelligent distribution network and working method thereof
04/23/2014CN103746352A Line protection phase selection method not influenced by operation mode
04/23/2014CN103746351A Power system failure alarm method taking digitized substation secondary circuit signals into account
04/23/2014CN103746350A High-sensitivity busbar differential protection method
04/23/2014CN103746349A Circuit breaker failure protection mechanism of transformer substation and optimal configuration method for circuit breaker protection
04/23/2014CN103746348A Electric wire protection method and electric wire protection device
04/23/2014CN103746347A Battery protection chip and battery system
04/23/2014CN103746346A Protection circuit for multiple lithium batteries
04/23/2014CN103746345A Discharge over-current protection device
04/23/2014CN103746344A Sine wave inverter with electric leakage protection function
04/23/2014CN103746343A Switching power supply circuit of firefighting emergency power supply
04/23/2014CN103746342A Boosting converter, controller for boosting converter and short circuit protection method
04/23/2014CN103746341A Motor overheating protection device
04/23/2014CN103746340A Intelligent monitoring device of motor
04/23/2014CN103746339A Electrical door protection device
04/23/2014CN103746338A Any phase-shifting angle special transformer differential protection method
04/23/2014CN103746337A Relay protection device constant value modifying and checking system
04/23/2014CN103746335A Amplitude comparison principle-based relay protection method
04/23/2014CN103743961A Open-phase detection method and detection apparatus for three-phase permanent magnet synchronous motor
04/23/2014CN103166198B System and method for power supply transformation system protection at least based on feedback signal
04/23/2014CN102664392B Differential protection method based on redundancy CT (Computed Tomography) winding
04/23/2014CN102623975B Method for generating current differential protection generalized node on basis of electric topology of regional distribution network
04/23/2014CN102570419B Power transmission line pilot protection method based on magnitude of current
04/23/2014CN102510051B Method for identifying failure of sampling value data of intelligent substation based on waveform coefficient equation
04/23/2014CN102496911B Traction transformer protection method, equipment and system
04/23/2014CN102496910B Fault analyzing method of multi-device internet
04/23/2014CN102439815B Charging control device
04/23/2014CN102403699B Self-adaptive current differential protection method for direct-current lines
04/23/2014CN102315780B Power source device
04/23/2014CN102280864B Post-failure live treatment method for protection device of distribution network system and portable protection device
04/23/2014CN102255293B Single-ended electrical quantity full-line quick-action protection method for recognizing faults inside and outside high-voltage direct-current transmission line region
04/23/2014CN102226509B Solar energy lighting device for apartment
04/23/2014CN102195273B Wire-breaking judgment method in voltage transformer loop
04/23/2014CN102035188B Novel thyristor overvoltage protection method
04/23/2014CA2829611A1 Latching circuit for ballast
04/22/2014US8705257 Switching module including a snubber circuit connected in parallel to a series-connected unit of flowing restriction elements
04/22/2014US8705214 Circuit arrangement comprising at least two capacitors connected in series
04/17/2014WO2014056393A1 Drive interlocking circuit preventing direct connection of bridge arms
04/17/2014WO2014031895A3 Systems and methods for rotor angle measurement in an electrical generator
04/17/2014DE102012218914A1 Schutzschaltungsanordnung für ein Mehrspannungsnetz Protective circuit arrangement for a multi-voltage power
04/17/2014DE102012218503A1 Vehicle i.e. motor car, has socket spacer attached to board voltage socket for electrical supply and comprising switching-element, and control unit for switching switching-element based on outputs of voltage comparator and value comparator
04/16/2014EP2720335A2 Circuit for controlling the energy supply to an electric device as well as an electrical device with a circuit
04/16/2014EP2720332A2 Online protection coordination for distribution management system
04/16/2014EP2719070A2 Method for controlling the resisting torque of a motor vehicle alternator, and system for implementing this method
04/16/2014EP2719043A1 Fault identification and location in a power supply line which is fed from one side
04/16/2014CN203554333U Three-phase power supply control system for diesel-engine dung pumping-applying machine
04/16/2014CN203554321U IGBT rectifier circuit
04/16/2014CN203554298U General-purpose assembly for switching power supply
04/16/2014CN203554281U DC-DC (direct current-direct current) power supply module
1 ... 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 ... 328