Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 31 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Patents for G01R 31 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere (152,264)
07/2012
07/04/2012CN102540034A High-voltage transformer bushing tap grounding on-line monitoring device
07/04/2012CN102540033A Built-in sensor for partial discharge ultrahigh frequency detection of gas insulated switchgear (GIS)
07/04/2012CN102540032A Live testing window for partial discharge of transformer
07/04/2012CN102540031A Device and system for testing voltage endurance of aluminum basal plate
07/04/2012CN102540030A Method for diagnosing development speed of partial discharge defect of oil paper insulated equipment
07/04/2012CN102540029A Method for calculating partial discharge failure probability of oil paper insulating equipment
07/04/2012CN102540028A Automatic pattern recognition method for partial discharge defects of generator stator insulation
07/04/2012CN102540027A Type selection method of insulators on high-voltage power transmission line in arid desert area
07/04/2012CN102540026A Oil cup for insulating oil impact characteristic research
07/04/2012CN102540025A Ultraviolet photon counting method based on width ratio module
07/04/2012CN102540024A Partial discharge test full system for dry type transformer
07/04/2012CN102540023A Device for detecting partial discharge signal of insulating structure
07/04/2012CN102540022A Pure capacitive electromagnetic type voltage transformer induction withstand voltage tester
07/04/2012CN102540021A Method for monitoring GIS (gas insulated switchgear) by aid of high-frequency partial discharge online system
07/04/2012CN102540020A Method for improving fault positioning precision of power transmission line by adopting online wave speed measurement technology
07/04/2012CN102540019A Method for identifying internal and external faults of bus area through simulation after test
07/04/2012CN102540018A Device and method for evaluating endurance and reliability of CAN (Controller Area Network) bus
07/04/2012CN102540017A Partition and segmentation on-line positioning method for small-current grounding faults
07/04/2012CN102540016A Power distribution line single-phase earth fault positioning and isolating method
07/04/2012CN102540015A Distance measuring method and distance measuring device for single-phase grounding of low-current grounding system
07/04/2012CN102540014A Online real-time anti-theft and anti-cut device and method for power cable
07/04/2012CN102540013A Transformer substation grounding network frequency response test device
07/04/2012CN102540012A Method and device for judging single-phase earth fault of low-current grounding system
07/04/2012CN102540011A Fault point intellectualized diagnosis and repairing method for geothermal cable and device
07/04/2012CN102540010A Test method for selecting lines by zero-sequence current gradual transfer in low current ground system
07/04/2012CN102540009A Fault locating system of power distribution network
07/04/2012CN102540008A Cable fault detection instrument
07/04/2012CN102540007A 500kv cable completion test method
07/04/2012CN102540006A Dustproof circuit tester
07/04/2012CN102540005A Device and method for detecting contact state of high-voltage electric connector of electric vehicle
07/04/2012CN102540004A Testing device
07/04/2012CN102540003A System for monitoring leakage current of insulator of intelligent electric transmission line
07/04/2012CN102540002A Method for detecting open circuit and short circuit of line
07/04/2012CN102540001A Method of checking alternating current loop of a 500kV transformer substation through carrying out simulated through-type three-phase short circuit
07/04/2012CN102540000A Method for separating periodic component and steep pulse component in insulated leakage current
07/04/2012CN102539999A Single-phase earth fault positioning device for electric network with non-effectively earthed neutral point
07/04/2012CN102539998A Electricity leakage early-warning device of explosion-proof electric machine
07/04/2012CN102539997A Method and device for detecting arc faults in an alternating current network
07/04/2012CN102539996A Detection method and system for layers of multilayer circuit board
07/04/2012CN102539995A Short circuit to ground detecting circuit of non-grounded circuit
07/04/2012CN102539994A Acoustic apparatus and acoustic sensor apparatus including a fastener
07/04/2012CN102539993A System and method for detection of open connections between an integrated circuit and a multi-cell battery pack
07/04/2012CN102539992A Semiconductor test device, semiconductor test circuit connection device, and semiconductor test method
07/04/2012CN102539991A Electricity leakage alarming device
07/04/2012CN102539990A Capacitor short circuit detecting circuit
07/04/2012CN102539989A Multifunctional detecting instrument of electric energy meter
07/04/2012CN102539988A Diagnosis methods for phase line faults of electric power steering system
07/04/2012CN102539987A Testing method for key circuit boards and system
07/04/2012CN102539986A Method for improving production efficiency of compensation type crystal oscillator
07/04/2012CN102539985A Automatic ageing and testing device and method
07/04/2012CN102539984A Mass production tester and mass production aging test system
07/04/2012CN102539983A High and low temperature test system for multi-quadrant photoelectric detectors
07/04/2012CN102539982A Automatic test system for single event effect test of DC/DC (direct current/direct current) converter and test method
07/04/2012CN102539981A Wide area protection fault recording method for electric power system
07/04/2012CN102539980A Protection fault panoramic data dumping method based on virtual sampling
07/04/2012CN102539979A Method for evaluating inner insulation performance of monolithic suspension insulator by testing direct-current leaked currents
07/04/2012CN102539978A Three-dimensional low-frequency receiving antenna comprehensive detection device
07/04/2012CN102539977A Thunder and lightning on-line monitoring system
07/04/2012CN102539976A Electric multifunctional wave recording analyzer
07/04/2012CN102539975A Method for carrying out synchronous on-line detection on data of 10kV merging units (MUs) based on voltage-phase comparison
07/04/2012CN102539974A Differential protection testing method for transformer
07/04/2012CN102539973A Charge and discharge detecting system of electric automobile
07/04/2012CN102539972A Performance testing instrument for thermoelectric electromagnetic valve
07/04/2012CN102539971A Electric energy quality monitoring terminal of intelligent substation
07/04/2012CN102539970A RFID (radio frequency identification) equipment testing method and system
07/04/2012CN102539969A Marine electric valve electric property debugging device
07/04/2012CN102539968A Locking control testing system of intelligent transformer substation
07/04/2012CN102539967A Signal collecting and driving testing device
07/04/2012CN102539966A Testing system for loads of frequency converters
07/04/2012CN102539965A Semi-automatic switching value fault detection method and system
07/04/2012CN102539964A Method for judging insulation characteristics of cross linked polyethylene (XLPE) power cables on line
07/04/2012CN102539963A Method for selecting equivalent continuous operating voltage of lightning arrester at harmonic voltage
07/04/2012CN102539962A Method for measuring non-uniform current distribution coefficient range of parallel multi-resistor piles
07/04/2012CN102539961A Apparatus for detecting fault of flying capacitor of insulated condition detecting unit
07/04/2012CN102539960A Method for measuring variable ratio nonlinear primary current threshold value of current transformer
07/04/2012CN102539959A Circuit assembly and method for detecting an arc
07/04/2012CN102539958A Method for determining correction of radio interference of elevation on power transmission line
07/04/2012CN102539957A Methods and apparatus for testing electric power devices
07/04/2012CN102539956A Hacking detecting device, integrated circuit and method of detecting a hacking attempt
07/04/2012CN102539955A Automation testing system of vehicle-mounted multimedia
07/04/2012CN102539954A Detection device for automobile remote control and detection method thereof
07/04/2012CN102539953A Method for testing data concurrent receiving capability of electric energy measurement automation system
07/04/2012CN102539952A Test device for dynamic characteristics of power main circuit and driving circuit thereof and method
07/04/2012CN102539951A Acoustic sensor system, acoustic signature simulator, and electrical distribution system
07/04/2012CN102539950A The apparatus for inspection of electrical characteristics of the capacitive touch screen panel using resonance frequency shift
07/04/2012CN102539949A Detection device for surge protector
07/04/2012CN102539948A Data cable quality testing system
07/04/2012CN102539947A Active voltage negative increase tester for charger testing
07/04/2012CN102539946A Test equipment
07/04/2012CN102539945A Intelligentized electric system test instrument based on virtual instructions technology
07/04/2012CN102539897A High-voltage charged display with nuclear phase function
07/04/2012CN102539881A Voltage detection device for assembled battery
07/04/2012CN102539878A Voltage sampling circuit, and filament breakage detecting device of automotive steering lamp employing such voltage sampling circuit
07/04/2012CN102539876A Array type current amplification sum testing circuit
07/04/2012CN102539855A Moving self-control full-characteristic load device for load test of power generator for vessel
07/04/2012CN102539854A Power grid signal injecting device for one-way earth fault location
07/04/2012CN102539853A Adjustable and controllable electric arc generation device
07/04/2012CN102539852A Test head for automatically detecting wafer-level packaged chips and implementing method for test head
07/04/2012CN102539850A Array test apparatus
07/04/2012CN102539846A Crystal oscillator test clamp with circuit switching plate
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