Patents
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)
04/2014
04/30/2014CN103765234A Temperature measurement of active device under test on strip tester
04/30/2014CN103765233A Ate to detect signal characteristics of a DUT
04/30/2014CN103765232A Wiring test device for electronics cabinets having internal signal wiring
04/30/2014CN103765231A Isolation adapter for a vehicle component test and test method for a vehicle component
04/30/2014CN103765202A Wiring defect detection method and wiring defect detection device
04/30/2014CN103762800A Tool for verifying insulation of stator coil of motor
04/30/2014CN103762564A Transient energy 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
04/30/2014CN103762554A Fault detecting method for side windings of three-phase three-winding transformer
04/30/2014CN103761895A Current transformer simulation examination system and working method
04/30/2014CN103761855A Contact bounce and actuation time test system based on power line communication
04/30/2014CN103760896A Hardware-in-loop test device and method for vehicle-mounted charger control device of new energy automobile
04/30/2014CN103760885A Electrical simulation testing bench for screw type water-cooled chiller/heat pump set
04/30/2014CN103760512A Voltage booster simulator
04/30/2014CN103760501A Lamp aging test line
04/30/2014CN103760500A Lamp test circuit and lamp tester comprising same
04/30/2014CN103760499A Power panel testing method and device
04/30/2014CN103760498A Automatic calibration device for power module and calibration method
04/30/2014CN103760497A Post-evaluation method and system of storage batteries
04/30/2014CN103760496A Charge and discharge capacity testing device and method for power battery pack of electric vehicle
04/30/2014CN103760495A Method for generating SOC source in BMS detection and method for testing SOC estimated accuracy
04/30/2014CN103760494A Method and system for estimating battery capacity online
04/30/2014CN103760493A Detecting method and system for health state of extended-range electric vehicle power battery
04/30/2014CN103760492A Method for online testing performance of lead-acid storage cells of transformer substation
04/30/2014CN103760491A Electric quantity monitoring method and device for digital storage battery
04/30/2014CN103760490A Stepper motor driver acceleration and deceleration performance testing device and method
04/30/2014CN103760489A Intelligent detection device for high-voltage circuit breaker
04/30/2014CN103760488A Test pad sharing circuit
04/30/2014CN103760487A Testing device for SVG driver board
04/30/2014CN103760486A Function testing device of special chip on circuit board
04/30/2014CN103760485A Backend detecting method for diodes and audions
04/30/2014CN103760484A Novel method for testing back gate effect
04/30/2014CN103760483A Optical-electrical characteristic testing system for OLED device
04/30/2014CN103760482A Photoelectric testing apparatus for LED packaging
04/30/2014CN103760481A Illumination radiation automatic test system
04/30/2014CN103760480A Method for judging composite insulator fault by utilization of infrared temperature measurement technology
04/30/2014CN103760479A Portable corona positioning instrument
04/30/2014CN103760478A High-repeatability standard creeping discharge model device
04/30/2014CN103760477A Withstand voltage test mechanism
04/30/2014CN103760476A Device, system and method for testing internal discharge of cables for satellite
04/30/2014CN103760475A High-power microwave vacuum sparking experiment research device
04/30/2014CN103760474A OPGW optical cable stress testing method
04/30/2014CN103760473A Method for discriminating fault branch of overhead line-power cable mixed connection line
04/30/2014CN103760472A Identically named fault phrase sequence diagnosis method of double-circuit lines on the same tower
04/30/2014CN103760471A Electric transmission line single-phase earth fault direction discriminating method based on instantaneous sampled values
04/30/2014CN103760470A Electric transmission line inter-phase short circuit fault direction discriminating method based on discrete sampled values
04/30/2014CN103760469A Line single-phase earth fault positioning method based on before-and-after fault voltage phase characteristic
04/30/2014CN103760468A Double-circuit line non-synchronous sampling double-end fault distance detection method based on jacobian matrix
04/30/2014CN103760467A Method for inspecting single-phase earth fault point of power distribution network
04/30/2014CN103760466A Disturbance source positioning system and method based on offline data
04/30/2014CN103760465A Single-phase earth fault direction judgment and processing method of small current grounding system
04/30/2014CN103760464A Small current grounding system fault line selecting method based on analytic graph solving and SVM
04/30/2014CN103760463A Low-current line selection method based on DTU
04/30/2014CN103760462A Current transient quantity principal component cluster analysis direction protection method for power transmission line with static synchronous series compensator
04/30/2014CN103760461A Bus protection method based on sudden-change direction of fault current containing power frequency bands
04/30/2014CN103760460A Bergeron model-based high-voltage direct-current earth electrode line time-domain fault range finding method
04/30/2014CN103760459A Detector for cable fracture positions
04/30/2014CN103760458A Single-phase grounding fault direction discriminating method of double-circuit lines on the same tower
04/30/2014CN103760457A Cable checking circuit structure and common-line-free cable checking method
04/30/2014CN103760456A Power grid capacitive type equipment insulation monitoring system based on rough set theory
04/30/2014CN103760455A Power battery pack electric leakage detection system
04/30/2014CN103760454A MOV lightning arrester leakage current detection device, remote monitoring system and method
04/30/2014CN103760453A Three-phase input UPS parallel machine system and bypass input wiring detection method
04/30/2014CN103760452A Electronic gun heat measurement system for electron beam analyzer and monitoring and correction method thereof
04/30/2014CN103760451A Method and device for detecting interface access modes of intelligent secret key device
04/30/2014CN103760450A One-tower double-circuit transmission line distance protection range spanning test method based on RTDS
04/30/2014CN103760449A Merging unit based on MMS and test stimulus amount applying method
04/30/2014CN103760448A Comprehensive live test method of insulation defects of metal oxide arrester for electric power
04/30/2014CN103760447A Alternating-current fault detection method for high-voltage direct-current power transmission
04/30/2014CN103760446A Crystal oscillator performance detector
04/30/2014CN103760445A Method for testing shielding effectiveness of irregular structure cavity based on reverberation room
04/30/2014CN103760444A ESD transient state detection circuit
04/30/2014CN103760443A Board card automatic testing system and testing method thereof
04/30/2014CN103760442A Fault indicator probe and automatic calibration method thereof
04/30/2014CN103760441A Multifunctional adjustment table of distribution box
04/30/2014CN103760440A Power system fault monitoring method and system
04/30/2014CN103760439A Automatic test system of avionic system
04/30/2014CN103760438A Testing device and testing method for shielding effectiveness of low-frequency magnetic shielding fabric
04/30/2014CN103760437A Method for testing display data of electronic cipherer COB circuit board
04/30/2014CN103760436A Intelligent electronic device program-control tester
04/30/2014CN103760435A Fault identification method for electric current semi-cycle absolute value integral differential formula of ratio restrain characteristics
04/30/2014CN103760434A Self-adaption phase deviation island detection method based on fuzzy control
04/30/2014CN103760433A Simulation test method for high impact current
04/30/2014CN103760432A Polar orbit satellite bus power cable secondary discharge ground simulation test system and method
04/30/2014CN103760431A Integrated online monitoring device of parallel capacitor
04/30/2014CN103760430A Apparatus capable of improving experimental ability of power capacitor
04/30/2014CN103760413A Current detection system of fault indicator and current detection low-temperature compensation method of fault indicator
04/30/2014CN103760411A Direct-current bus voltage wave-recording device
04/30/2014CN103760404A Storage battery voltmeter with adjustable test pencil electrode distance
04/30/2014CN103760401A System and method for testing leakage current of zinc oxide arrester
04/30/2014CN103760388A Four-wire test fixture and test method thereof
04/30/2014CN103759950A Automobile rear-view mirror assembly detection device
04/30/2014CN103759870A Method and system for measuring output power value of intermittent acting device
04/30/2014CN102736033B Automotive fuel cell stack and module durability assessment condition and assessment method
04/30/2014CN102621413B Filed maintenance strategy optimizing determination method for converter transformer
04/30/2014CN102611140B Grid-connected inverter island detection method based on wavelet transform and neural network
04/30/2014CN102590701B Coordinate calibration method for power transmission line towers
04/30/2014CN102565628B Method for identifying properties of lightning faults of overhead line on basis of amplitude interval distribution of lightning current
04/30/2014CN102565614B Alternating voltage loop test method
04/30/2014CN102565612B Substation bus fault and insulation automatic detecting device