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)
05/2014
05/07/2014CN103779846A 基于导纳矩阵快速修正的电网线路广域电流保护方法 Power Line WAN current protection methods admittance matrix based Quick Fix
05/07/2014CN103779845A 一种提高串补线路电流差动保护动作性能的方法 A series compensated line current differential protection method for improving performance
05/07/2014CN103779844A 基于虚拟电压降落的自适应距离保护系统及其保护方法 Adaptive distance protection system and method for virtual voltage drop protection
05/07/2014CN103779843A 基于差动灵活交叠分区的站域保护系统及其保护方法基于 站 域 protection systems 及其 protection method Chaidonglinghuo Jiaodiefenqu of
05/07/2014CN103779842A 低压开关设备抽屉单元触头温度监控装置 Low-voltage switchgear drawer unit contact temperature monitoring device
05/07/2014CN103779841A 基于方向比较与电流差动相结合的站域后备保护方法 Station Domain backup protection compared with the current direction of the differential method based on the combination
05/07/2014CN103779840A 联切系统 Joint cutting system
05/07/2014CN103779839A 一种采用可充电电池供电的自关断启动电路 One kind uses a rechargeable battery-powered self-turn-off start-up circuit
05/07/2014CN103779838A 一种开关电源管理电路系统 A switching power management circuitry
05/07/2014CN103779837A 一种防止电机烧毁的方法 A method of preventing motor burn method
05/07/2014CN103779836A 基于环流突变特性变压器绕组故障继电保护方法 Based on Circulation mutations characteristic winding transformer fault protection methods
05/07/2014CN103779835A 基于铁耗无功功率特性变压器绕组匝间短路继电保护方法 Between the iron-based reactive power consumption characteristics of the transformer winding turn short circuit protection method
05/07/2014CN103779834A 一种应用于分布式发电并网接入防逆流智能检测方法 Applied to distributed generation and network access backflow prevention intelligent detection method
05/07/2014CN102545155B 一种太阳能电池有源防反接与保护电路 A solar cell with an active anti-reverse protection circuit
05/07/2014CN102394490B 一种用于模拟开关的保护电路 A protective circuit analog switch
05/07/2014CN102377246B 基于iec61850故障分析系统的图形实例化方法 Graphic instance method iec61850 fault analysis system based on
05/07/2014CN102362230B 用于控制驱动机构的具有响应延迟的控制件的方法和装置 Method and apparatus for controlling the driving mechanism has a control member in response to the delay
05/07/2014CN102354952B 半波积分累积式反时限过励磁保护方法 Half-wave integral inverse cumulative over-excitation protection methods
05/07/2014CN102255290B 一种电流自适应保护方法 A current method of adaptive protection
05/07/2014CN102244376B 一种碳化硅灭磁电阻及其制备方法 A silicon carbide off magnetoresistance and its preparation method
05/07/2014CN102222884B 两步探测绝缘栅双极型器件短路自保护电路的保护方法 Two-step detection of insulated gate bipolar device short circuit protection method of self-protection circuitry
05/07/2014CN102195272B 用于电子装置的温度保护系统 Thermal protection systems for electronic devices
05/07/2014CN102124639B 三相逆变器的电源电路保护装置 Three-phase power circuit protection device inverter
05/07/2014CN102106074B 带有分布储能器的多相变换器的冗余控制方法 Redundant control method with a distributed energy storage multiphase converter
05/07/2014CN102082420B 输电线路的纵差保护方法 Longitudinal differential protection method of transmission line
05/07/2014CN102005722B 一种防止手持终端短路的方法及装置 A method and device for handheld terminals to prevent short-circuiting
05/07/2014CN101917055B 一种基于支路贴近度的广域后备保护方法 A wide degree of backup protection method based on branch close
05/07/2014CN101849336B 用于管理用以分配电能的网络中的故障事件的方法以及相应的电子保护单元 Used to manage the network for distribution of electric energy in the event of a fault and the corresponding electronic protection unit
05/06/2014US8718959 Method and apparatus for high-speed fault detection in distribution systems
05/06/2014US8718830 Optimized protection coordination of electronic-trip circuit breaker by short circuit current availability monitoring
05/06/2014US8717788 Method and system for controlling a power converter system connected to a DC-bus capacitor
05/06/2014US8717787 Method for operating a converter circuit and apparatus for implementing the method
05/06/2014US8717781 Direct current/direct current converter, and power supply apparatus and electronic device using the same
05/06/2014US8716969 Trash can with power operated lid
05/01/2014WO2014063955A1 Method and circuit unit for determining fault states in a half-bridge circuit
05/01/2014WO2012145383A3 Voltage sag corrector using a variable duty cycle boost converter
05/01/2014US20140120381 Secondary battery protecting circuit and hybrid power source equipment
05/01/2014US20140118868 Method and system for fault protection
05/01/2014US20140118867 Drive circuits and systems for motor controller protection
05/01/2014US20140118866 Electric power steering control device and electric power steering control method
05/01/2014US20140118865 Disconnection detecting device for rotating electrical machine, method for detecting disconnection of rotating electrical machine
05/01/2014US20140118864 Method and system for power swing detection in a generator
04/2014
04/30/2014EP2724443A2 System and method for compensating a battery charger installed in a vehicle
04/30/2014DE102013111533A1 Drehende elektrische Maschine mit einer Schutzfunktion eines Schaltelements Rotating electrical machine having a protective function of a switching element
04/30/2014DE102012219797A1 Verfahren und Vorrichtung zum Betreiben einer elektronisch kommutierten elektrischen Maschine Method and apparatus for operating an electronically commutated electric machine
04/30/2014CN203574569U Positive and negative rotation drive device of cleaner dust pressing motor
04/30/2014CN203574422U Power supply chip integrating output control and low voltage detection and enhancing voltage stabilization output
04/30/2014CN203574370U Power supply filtering/energy storage circuit
04/30/2014CN203574359U Wide-voltage two-way indication bus isolator
04/30/2014CN203574358U Safety equipment for power transmission and distribution
04/30/2014CN203574357U Protection device of vehicle emergency starting power supply
04/30/2014CN203574356U Lithium battery protection board with charging-protection and accelerated cutoff function
04/30/2014CN203574355U Lithium battery protection board with charging locking function
04/30/2014CN203574354U Protective device applied to switching power supply
04/30/2014CN203574353U Motor open-phase protective device sampled by using power diodes
04/30/2014CN203574352U Cooling air induction device for direct current motor
04/30/2014CN203574348U Power supply management chip circuit applied to electronic product
04/30/2014CN203573906U Three-phase motor composite manual protection switch
04/30/2014CN203568704U Contactless dustproof wireless receiver for commutation of motor of overhead travelling crane
04/30/2014CN103762691A Battery charging device and battery charging protection control method
04/30/2014CN103762574A Double-circuit line non-same-name-phase overline grounded impedance distance protection method
04/30/2014CN103762573A Self-adaptive zero-sequence current protecting method for electric transmission line
04/30/2014CN103762572A Electric transmission line power frequency deviation component current differential protection method based on direction coefficient
04/30/2014CN103762571A Method for achieving circuit single-phase earth fault relay protection with hyperbolic tangent function amplitude characteristics
04/30/2014CN103762570A Grid line relay protection method applicable to double line faults
04/30/2014CN103762569A Two phrase grounding short circuit fault direction discriminating method of double circuit lines on the same tower
04/30/2014CN103762568A Negative-sequence current split-phase differential motion protecting method for electric transmission line
04/30/2014CN103762567A Electric transmission line single-phase earth fault relay protection method based on fault position factor
04/30/2014CN103762566A Method for achieving circuit phase-to-phase fault relay protection with hyperbolic tangent function amplitude characteristics
04/30/2014CN103762565A Branch line protection controller
04/30/2014CN103762564A Transient energy direction protection method for power transmission line with static synchronous series compensator
04/30/2014CN103762563A Sequence overlapping differential direction protection method for power transmission line with static synchronous series compensator
04/30/2014CN103762562A Full-line quick-acting protection method in which T-type transmission grid single-end transient state quantity S-transform is utilized
04/30/2014CN103762561A Direct current differential protection setting method of high-voltage direct current transmission system
04/30/2014CN103762560A Double-circuit line non-same-name-phase overline grounded reactance distance protection method
04/30/2014CN103762559A Low-voltage line protective device and control method thereof
04/30/2014CN103762558A Recoverable power interface circuit resistant to single event latchup
04/30/2014CN103762557A Device and method for open-circuit-resistant protection of current transformer
04/30/2014CN103762556A Intelligent charge protector
04/30/2014CN103762555A Over-current protection device and protection method for frequency converter
04/30/2014CN103762554A Fault detecting method for side windings of three-phase three-winding transformer
04/30/2014CN103762553A Relay protection method for accelerated removal of dead zone faults of transformer based on open positions of circuit breakers
04/30/2014CN103762552A Relay protection method for transformer with winding inter-turn short circuit fault
04/30/2014CN103762551A Relay protection method for accelerated removal and TA sealing of dead zone faults of transformer based on open positions of circuit breakers
04/30/2014CN103762546A Circuit breakers
04/30/2014CN103762544A Automatic switching-on controller
04/30/2014CN103760465A Single-phase earth fault direction judgment and processing method of small current grounding system
04/30/2014CN103760458A Single-phase grounding fault direction discriminating method of double-circuit lines on the same tower
04/30/2014CN103760435A Fault identification method for electric current semi-cycle absolute value integral differential formula of ratio restrain characteristics
04/30/2014CN102545731B Motor multi-head quickly switching device
04/30/2014CN102437545B Reclosing remote putting on/off relay
04/30/2014CN102208800B Adaptive insulated gate bipolar transistor (IGBT) series-connection voltage-sharing circuit with overcurrent protection function
04/30/2014CN102082421B Implementation method of break variable current differential relay based on differential impedance principle
04/30/2014CN102077435B Method for selectively triggering circuit breakers in the event of a short circuit
04/30/2014CN102064538B Realization method of variable distance relay automatically adapting to system line impedance ratio
04/30/2014CN101868900B Method and device for reducing anti-pinch algorithm influence from change of in the mechanical properties of a mobile closing part of a vehicle
04/30/2014CN101814720B Electric vehicle inverter apparatus and protection method therefor
04/30/2014CN101728815B Compressor
04/30/2014CN101425672B System and method for control of power distribution networks
04/29/2014US8713332 System and method of supplying an electrical system with direct current
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