Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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05/25/2011 | EP2325958A1 Surge current detection device |
05/25/2011 | EP2324363A1 Wide-range open-loop current sensor |
05/25/2011 | CN201845653U Current transformer for supplying power for electronic device |
05/25/2011 | CN201845652U Clamping current transformer |
05/25/2011 | CN201845651U Miniaturized electromagnetic voltage transformer |
05/25/2011 | CN201845037U Electric parameter wireless measurement device |
05/25/2011 | CN102074344A Secondary winding group structure of current transformer |
05/25/2011 | CN102072980A Optical fiber temperature compensator of electronic current transformer |
05/24/2011 | US7948227 Electrical circuit diagnostic tool |
05/19/2011 | WO2011058375A1 Current measuring apparatus |
05/18/2011 | EP2321656A2 Method and apparatus for measuring direct currents flowing in an electric line |
05/18/2011 | CN201838453U Voltage transformer |
05/18/2011 | CN201838452U Electronic transformer simulator |
05/18/2011 | CN201837679U Power supply device for electric energy meter |
05/18/2011 | CN201837670U Universal meter |
05/18/2011 | CN102066953A Test and measurement device with a pistol-grip handle |
05/18/2011 | CN102064546A Circuit control system |
05/18/2011 | CN102064014A Multi-turn inverted current transformer |
05/18/2011 | CN102062800A Temperature compensated fiber optic current or magnetic field sensor with insensitivity to variations in sensor parameters |
05/18/2011 | CN102062799A Vehicle mounted electrical isolation measuring circuit |
05/18/2011 | CN101692401B Optical fiber current transformer with optical fiber temperature acquisition and temperature compensation |
05/18/2011 | CN101520471B Novel DC pulsed attenuator |
05/17/2011 | US7944198 Multimeter |
05/17/2011 | US7944197 Clamp meter with rotary mechanism for clamp jaws |
05/13/2011 | CA2709513A1 Electrical switching module |
05/13/2011 | CA2709508A1 Electrical switching module |
05/12/2011 | US20110109300 Multi-range electrical current measurement |
05/12/2011 | DE202011004187U1 Spannungsprüfsystem für Mittel- und Hochspannungsanlagen Voltage detection system for medium and high voltage systems |
05/12/2011 | DE102009051999A1 Verfahren und Anordnung zur Überwachung eines Photovoltaik-Moduls Method and apparatus for monitoring a photovoltaic module |
05/11/2011 | EP2319117A1 Method and device for numerically representing a voltage |
05/11/2011 | EP1977258B1 Device for measuring dc current having large measurement variation, electronic assembly comprising such a measurement device and circuit breaker having such an assembly |
05/11/2011 | CN201829340U Electric assembled mutual inductor |
05/11/2011 | CN201829335U Outdoor box type 10kV voltage transformer |
05/11/2011 | CN201828596U Series-connection voltage signal acquisition attenuating device |
05/11/2011 | CN201828595U DC voltage signal isolating amplifier circuit |
05/11/2011 | CN102057279A Magnetic field sensor measuring a direction of a magnetic field in a plane and current sensor |
05/11/2011 | CN102053199A Digital optical fiber current sensor |
05/11/2011 | CN102053196A Arc voltage testing device of pantograph catenary system |
05/11/2011 | CN102053192A Digital multimeter including a ruggedized jacket |
05/11/2011 | CN102053191A Electronic voltage transformer using data fusion technology and error calibration method thereof |
05/11/2011 | CN102053190A Novel capacitance voltage-division type voltage transducer |
05/11/2011 | CN101320055B Full optical fiber current sensor |
05/05/2011 | WO2011051910A1 Device and method for detecting and processing signals relating to partial electrical discharges |
05/05/2011 | US20110101960 Clamp jaw assembly |
05/05/2011 | DE102010037237A1 Vorrichtung zum Messen von elektrischem Strom A device for measuring electric current |
05/05/2011 | DE102009033126B4 Stromwandler für einen elektronischen Elektrizitätszähler Current transformers for electronic electricity meters |
05/04/2011 | CN201820628U Electronic current and voltage transformer |
05/04/2011 | CN201820625U Electronic voltage transformer |
05/04/2011 | CN201819945U Isolated direct current (DC) bus voltage detection circuit for inverter air-conditioner |
05/04/2011 | CN201819942U Digital pincher-like multimeter |
05/04/2011 | CN201819941U Resistance voltage divider |
05/04/2011 | CN201816611U Device for collecting high-voltage signals of train |
05/04/2011 | CN102047127A Faraday optical current sensor arrangement |
05/04/2011 | CN102044335A Capacitor voltage transformer with external error adjusting structure |
05/04/2011 | CN102044334A Low-voltage transformer |
05/04/2011 | CN102044136A Power collection device |
05/04/2011 | CN102043215A Novel sensing optical cable of optical fiber current transformer |
05/04/2011 | CN102043089A Isolation type voltage sensor |
05/04/2011 | CN102043083A Giant magnetoresistance array current sensor |
05/04/2011 | CN102043076A Voltage divider with intermediate voltage tap retaining plate |
05/04/2011 | CN101692102B Power frequency zero-flux mini-current sensor for capacitive equipment dielectric loss on-line monitoring |
05/04/2011 | CN101614766B Circuit for eliminating voltage measurement error of high voltage standard capacitor divider |
05/04/2011 | CN101216508B Optical fibre electric current sensor all-optical fibre sensing head |
05/03/2011 | US7936165 Current sensor |
05/03/2011 | US7936164 Folding current sensor |
04/28/2011 | WO2011049161A1 Electrical junction box and current detecting device |
04/28/2011 | WO2011011289A3 Electrical power system sensor devices, electrical power system monitoring methods, and electrical power system monitoring systems |
04/28/2011 | DE202009017022U1 Hybridelektronischer Stromwandler zur Strommessung in Energieversorgungsnetzen mit Gleich- oder Wechselstromsystemen Hybrid Electronic current transformers for current measurement in power supply systems with AC or DC systems |
04/27/2011 | EP1546741B1 Integrated current sensor |
04/27/2011 | CN201812669U Integrated high-voltage dry-type measuring box |
04/27/2011 | CN201812668U Electronic type current and voltage combined mutual inductor of three-phase enclosed GIS (Geographic Information System) |
04/27/2011 | CN201812664U Voltage transformer |
04/27/2011 | CN201811989U Direct-current high-voltage indicating device |
04/27/2011 | CN102037366A Optical voltage sensor |
04/27/2011 | CN102034649A Circuit breaker embedded with low-voltage side electronic current transformer |
04/27/2011 | CN102034599A Dry-type current transformer |
04/27/2011 | CN102033150A Digital multimeter including a remote display |
04/26/2011 | US7933752 Method, apparatus and computer program providing broadband preconditioning based on a reduced coupling for numerical solvers |
04/26/2011 | CA2571140C A method and an apparatus for measuring voltage at a power switching device |
04/26/2011 | CA2488518C Dry-type high-voltage load system apparatus and method of preventing chain breaking and arc discharge for use therewith |
04/21/2011 | US20110089933 Combined electrical measurement device |
04/21/2011 | DE112009001350T5 Anordnungen für eine Stromfühlerschaltung und integrierter Stromfühler Arrangements for a current sensing circuit and integrated current sensor |
04/21/2011 | DE102009049599A1 Power factor correction circuit for use in power supply unit, has secondary winding connected with measuring resistor at which voltage signal proportional to transmitted current is tappable |
04/20/2011 | CN201804703U Primary end structure of active electronic current transformer |
04/20/2011 | CN201804702U Outdoor box-type 10kV current transformer |
04/20/2011 | CN201804701U Laser power-supply type 110kV photoelectric current transformer |
04/20/2011 | CN201804700U Laser energy supply-based electronic current transformer |
04/20/2011 | CN201804699U Damper for capacitive voltage transformers |
04/20/2011 | CN201804697U Dry-type electromagnetic unit of capacitor voltage transformer |
04/20/2011 | CN201804696U Ultra-high voltage isoelectric shielding CVT |
04/20/2011 | CN201804695U Secondary line-outgoing terminal sealing device of electric mutual inductor |
04/20/2011 | CN201804037U Power supply distribution unit |
04/20/2011 | CN201804036U Full optical fiber current transformer |
04/20/2011 | CN102027381A Phasor estimation during current transformer saturation |
04/20/2011 | CN102027314A High voltage measurement device using poled fibers |
04/20/2011 | CN102024557A Electronic type current transformer |
04/20/2011 | CN102024556A Self-adhesive hollow coil based electronic current transformer |
04/20/2011 | CN102024555A Electronic voltage transformer |
04/20/2011 | CN102024554A Harmonic elimination protector for electromagnetic potential transformer (PT) of three-phase electric network |
04/20/2011 | CN102023283A On-line measuring method of accumulator capacity |