Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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06/29/2011 | CN201886894U Adjustable low-voltage current transformer |
06/29/2011 | CN201886893U Novel primary wire core of oil immersed erected current transformer |
06/29/2011 | CN201886892U Novel ground shield device for oil immersed type current transformer |
06/29/2011 | CN201886891U Medium voltage electrode shielding device for 5000kV sulfur hexafluoride (SF6) current transformer |
06/29/2011 | CN201886890U Current transformer with multi-turn structure |
06/29/2011 | CN201886889U Distributed adjusting panel structure of capacitance voltage transformer |
06/29/2011 | CN201886888U High-voltage wiring device for voltage transformer used on combined electrical apparatus |
06/29/2011 | CN201886120U Dynamic tester with function of isolating test signals and power supplies |
06/29/2011 | CN201886112U Automatic wave-recording device of short current in DC amplitude voltage electric grid of ship |
06/29/2011 | CN201886067U Online voltage harmonic monitoring system for wind farms |
06/29/2011 | CN201886064U Battery management system and battery pack current sampling circuit in controller thereof |
06/29/2011 | CN201886057U Aerial transformer load current meter |
06/29/2011 | CN201886056U Test circuit capable of realizing isolation among power supplies, input signals and output signals |
06/29/2011 | CN201886055U Full-range high-linearity analog signal buffer circuit |
06/29/2011 | CN101707127B Oil-immersed inverted current transformer with function of insulation online monitoring |
06/29/2011 | CN101521104B Full optical fiber current transformer adopting double closed loop control |
06/29/2011 | CN101438174B Input by-pass circuit for a current probe |
06/28/2011 | US7969140 Magnetic field sensor and electrical current sensor therewith |
06/23/2011 | WO2011072934A1 Current sensor with a self-test function |
06/23/2011 | WO2011072849A1 Method for the non-contact measurement of current, having adapted resolution |
06/22/2011 | EP2335082A1 Method and apparatus for dynamic signal switching of a merging unit in an electrical power system |
06/22/2011 | DE102010054832A1 Verfahren zur berührungslosen Weltbereichs-Strommessung mit angepasster Auflösung Method for contactless world-range current measurement with custom resolution |
06/22/2011 | DE102009054943A1 Stromsensor mit Selbsttestfunktion Current sensor with self-test function |
06/22/2011 | CN201877752U Error adjustment connecting box and capacitor voltage transformer with same |
06/22/2011 | CN201877282U Current transformer case |
06/22/2011 | CN201877280U Full-dry type capacitive high-voltage current transformer |
06/22/2011 | CN201877279U Capacitor panel of current transformer |
06/22/2011 | CN201877278U Secondary winding element structure for current transformers |
06/22/2011 | CN201877276U Gas-insulating electronic voltage transformer |
06/22/2011 | CN201876487U Optical current measuring sensor |
06/22/2011 | CN201876486U Auxiliary error compensating structure for voltage transformer |
06/22/2011 | CN201876485U Electronic transformer based on intelligent conditioning unit |
06/22/2011 | CN102105959A Generator circuit breaker with fiber-optic current sensor |
06/22/2011 | CN102105802A Transformer meter and system for using same |
06/22/2011 | CN102103157A Direct voltage isolated sampling device |
06/22/2011 | CN102103156A Digital current transformer and method for measuring current of AC (Alternating Current) transmission conductor |
06/22/2011 | CN102103155A Numerical control isolation sampling device |
06/22/2011 | CN101770855B Electronic combined transformer for digitalized power station |
06/22/2011 | CN101424708B Optical voltage transformer |
06/21/2011 | US7965162 Current sensor |
06/16/2011 | WO2011072139A1 Magneto optical current transducer with improved outage performance |
06/16/2011 | WO2011069825A1 Method and device for calibrating a voltage measurement on a driving circuit |
06/16/2011 | WO2011069558A1 Fiber-optic current sensing using a sensor with exchangeable sub-modules |
06/16/2011 | DE102010051007A1 Nebenschlusswiderstand und Herstellungsverfahren dafür Shunt resistor and manufacturing method thereof |
06/16/2011 | DE102009058306A1 Electrical current detection device for use in low-voltage switching device, has evaluation unit with sockets and sensor with pins for signal transmission between sensor and evaluation unit, where sockets are designed as clamping plates |
06/16/2011 | CA2783295A1 Magneto optical current transducer with improved outage performance |
06/15/2011 | EP2333567A2 Device for measuring current |
06/15/2011 | EP2333498A1 Sagnac interferometer-type fiber-optic current sensor |
06/15/2011 | CN201868225U Voltage transformer with low dielectric loss factor |
06/15/2011 | CN201868224U Intermediate voltage transformer provided with fuse |
06/15/2011 | CN201868222U Cable plug type voltage transformer with fuses |
06/15/2011 | CN201868221U Voltage transformer with fuse |
06/15/2011 | CN201867443U Home appliance and mains supply strong current signal detection circuit thereof |
06/15/2011 | CN201867442U Wide load current measurement controller |
06/15/2011 | CN1928581B Online detecting method of silicon steel magnetic property, coil and system therefor |
06/15/2011 | CN1696712B Electric current measuring arrangement, current sensor, electric tripping device and circuit breaker using such a current measuring device |
06/15/2011 | CN102099695A Magnetoresistive sensor arrangement for current measurement |
06/15/2011 | CN102098012A Detection and amplification device for micro current |
06/15/2011 | CN102095913A Multi-functional portable auxiliary maintenance/detection pen for electrical appliances |
06/15/2011 | CN101710138B Grid electrode photoelectric integrated sensor for measuring high electric field |
06/15/2011 | CN101315395B Intelligent multifunctional measuring apparatus and method thereof |
06/15/2011 | CN101294988B Optical fiber type electric mutual inductor |
06/09/2011 | WO2011068205A1 Shunt resistor and method for producing same |
06/09/2011 | DE202011004767U1 Vorrichtung zur Isolationsfehlersuche Device for insulation fault location |
06/09/2011 | DE19819470B4 Verfahren zum potentialfreien Messen von Strömen durch die Aufzeichnung des von ihnen verursachten Magnetfeldes sowie Vorrichtungen zur Durchführung des Verfahrens A method for floating measuring currents through the recording of the magnetic field caused by them and apparatus for performing the method |
06/09/2011 | DE102009056838A1 Verfahren und Vorrichtung zur Spannungsmessung Method and apparatus for measuring voltage |
06/08/2011 | CN201859771U High-multiplying-power composite transformation ratio current transformer |
06/08/2011 | CN201859768U Current transformer with plug-in slots |
06/08/2011 | CN201859760U Totally-closed voltage transformer |
06/08/2011 | CN201859759U Capacitance type voltage mutual inductor with error externally adjusting structure |
06/08/2011 | CN201859210U Single-iron-core fluxgate and fluxgate single-axis sensor |
06/08/2011 | CN201859209U Single iron core fluxgate and double-shaft sensor for fluxgate |
06/08/2011 | CN201859168U Intelligent automatic conversion metering device |
06/08/2011 | CN201859167U Analog quantity acquisition converter |
06/08/2011 | CN102087915A Method for transforming secondary loop of voltage transformer of electric energy metering device |
06/08/2011 | CN102087903A Double-face symmetric wired printed circuit board (PCB) type Rogowski coil |
06/08/2011 | CN102087310A Shielding voltage measuring device for alternating current (AC) extra-high voltage |
06/08/2011 | CN102087307A High precision full optical fiber current mutual inductor |
06/08/2011 | CN101305284B Current transformer and electric energy meter |
06/08/2011 | CN101090037B Manufacturing method for feed-through bar isolator of electricity meter mutual inductor |
06/07/2011 | CA2329963C Fiber optic current sensor |
06/03/2011 | WO2011065535A1 Current input transducer |
06/03/2011 | WO2011064024A1 Circuit device and power circuit having the circuit device |
06/01/2011 | EP2328387A2 Device for detecting the status of an electric fence |
06/01/2011 | EP2243034B1 Electrical current sensor |
06/01/2011 | EP1438592B1 Inductive current sensor for an electricity meter |
06/01/2011 | DE102009047235A1 Schaltungseinrichtung und Leistungsschaltkreis mit der Schaltungseinrichtung Circuit, and power circuit with the circuit device |
06/01/2011 | DE102004044588B4 Stromsensor Current sensor |
06/01/2011 | CN201853571U Voltage transformer based on capacitance-resistance voltage division principle |
06/01/2011 | CN201852931U Test circuit of analog residual current signal |
06/01/2011 | CN201852874U Electronic voltage transformer |
06/01/2011 | CN201852873U Bipolar current-voltage converting circuit |
06/01/2011 | CN201852872U Multimeter with functions of ammeter |
06/01/2011 | CN201852871U Capacitive voltage divider formed by printed circuit boards |
06/01/2011 | CN102084259A 3-phase faraday optical current sensor assembly |
06/01/2011 | CN102082024A External-expander capacitive voltage transformer and vacuum treatment method thereof |
05/31/2011 | US7952345 Inverted magnetic isolator |
05/26/2011 | US20110121817 Method for increasing the availability of displacement/position measuring systems on the basis of potentiometers with a slider tap (iii) |
05/26/2011 | DE112009000897T5 Prüf-und-Mess-Vorrichtung mit einem Pistolengriff Testing and measuring apparatus having a pistol grip |
05/26/2011 | DE102009047042A1 Vorrichtung und Verfahren zum Messen eines Motorstroms eines Gleichstrommotors Apparatus and method for measuring a motor current of a DC motor |