| Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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| 02/02/2000 | CN2362184Y Dry-type high-voltage current transformer |
| 01/27/2000 | WO2000004398A2 Device and method for optically detecting an electric current and a component of an electric field |
| 01/26/2000 | CN2360919Y 一种电流互感器 A current transformer |
| 01/26/2000 | CN1242837A Self powered current sensor |
| 01/25/2000 | US6018239 Self-powered axial current sensor |
| 01/25/2000 | US6018238 Hybrid non-contact clamp-on current meter |
| 01/25/2000 | US6018237 Variable color display system |
| 01/20/2000 | DE19931268A1 Optical sampling device for low frequency signals |
| 01/19/2000 | EP0972295A2 Unit for switching electrical energy |
| 01/19/2000 | EP0864098B1 Process and device for measuring a quantity, in particular an electric current, with a high measurement resolution |
| 01/18/2000 | US6016053 Gas-insulated switchgear with voltage transformer and optical measuring element |
| 01/12/2000 | EP0970494A1 Subassembly for switching electric energy |
| 01/12/2000 | CN2358536Y Current transformer capable of preventing external wiring and illegal use of electricity |
| 01/11/2000 | US6013365 Multi-layer structure and sensor and manufacturing process |
| 01/06/2000 | WO2000000834A1 Residual current detection device |
| 01/06/2000 | WO2000000833A1 Current detector and current measurement apparatus including such detector |
| 01/04/2000 | US6011402 Electro-optic apparatus and method for measuring electric-field vector |
| 12/29/1999 | EP0966781A1 Circuit interrupter having improved current sensing apparatus |
| 12/29/1999 | EP0966688A2 High voltage installation with a device for transmitting signals |
| 12/29/1999 | EP0868644A4 Multi-dimensional capacitive transducer |
| 12/29/1999 | CN2356415Y Outdoor dry current mutual inductor |
| 12/29/1999 | CN2356414Y Out-door dry voltage mutual inductor |
| 12/28/1999 | US6008927 Optical fiber modulator having an optical fiber having a poled portion serving as an electrooptic element and method for making same |
| 12/28/1999 | US6008634 Electrical junction box |
| 12/22/1999 | EP0965849A2 Trigger clip-on to detect high voltage pulses |
| 12/22/1999 | EP0965046A1 Method and device for measuring an electrical voltage |
| 12/22/1999 | CN2355415Y Protective voltage mutual inductors on posts |
| 12/22/1999 | CN1047511C No low-frequency distortion DC isolating circuit |
| 12/21/1999 | US6005383 Electrical current sensor with magnetic field detector |
| 12/16/1999 | WO1999064874A1 Electric current sensor with wide passband |
| 12/16/1999 | WO1999040446A8 Current measuring method, current sensor, and ic tester using the same current sensor |
| 12/15/1999 | EP0963557A1 Circuit to measure electrical measurement variables by means of light signals of differing wavelengths |
| 12/15/1999 | CN1238459A Equipment for measuring ultra-high-voltage transmitted current with electromagnetically inductive current transformer |
| 12/15/1999 | CN1238457A Intrument with installation-evident accessory modules |
| 12/14/1999 | US6002260 Fault sensor suitable for use in heterogenous power distribution systems |
| 12/09/1999 | WO1999063352A1 Closely-coupled multiple-winding magnetic induction-type sensor |
| 12/09/1999 | WO1999041616A9 Apparatus for fast measurements of current and power with scaleable wand-like sensor |
| 12/09/1999 | DE19825383A1 Elektronische Auslöseeinrichtung für einen Leistungsschalter mit einem Rogowski-Stromwandler The electronic trip device for a circuit breaker with a Rogowski current transformer |
| 12/09/1999 | DE19822315A1 Triggerzange zum Erfassen von Hochspannungsimpulsen Trigger clamp for detecting high-voltage pulses |
| 12/08/1999 | CN2353025Y Large current mutual inductor |
| 12/08/1999 | CN2352965Y External attached type electric meter carrier wave additional device |
| 12/08/1999 | CN1237710A Multiloop detector and divided current converter for said detector |
| 12/07/1999 | US5999668 Ceramic fiber optic current sensor |
| 12/02/1999 | WO1999062157A1 Electronic tripping device for a circuit breaker with a rogowski current transformer |
| 12/01/1999 | EP0961124A2 Multicircuit type instrument and split type current transformer for measuring various electric power quantities |
| 12/01/1999 | EP0961121A2 Simplified user interface and control system for a multimeter |
| 12/01/1999 | EP0961120A2 Smart auto-ranging rms measurement method and apparatus |
| 12/01/1999 | EP0960342A1 Current sensor with self-oscillating generator circuit |
| 12/01/1999 | EP0960341A1 Current detector working in accordance with the compensation principle |
| 12/01/1999 | CN1236893A Simplified user interface and control system for multimeter |
| 11/30/1999 | US5995911 Digital sensor apparatus and system for protection, control, and management of electricity distribution systems |
| 11/30/1999 | US5994890 Harmonics survey system |
| 11/25/1999 | WO1999060691A1 Measuring bridge with integrated intelligence |
| 11/25/1999 | WO1999060416A1 Method for measuring a current flowing through a conductor without contact using a hall sensor, and hall sensor arrangement |
| 11/25/1999 | DE19821492A1 Contactless measuring of current in conductor track of e.g. battery short-circuit safety system in motor vehicle |
| 11/24/1999 | CN2350772Y Magneto-optical current transformer |
| 11/24/1999 | CN1236436A Voltage detector for measurement and protection purpose for use in medium-voltage switch gear |
| 11/24/1999 | CN1236105A Smart auto-ranging RMS measurement method and apparatus |
| 11/23/1999 | US5991177 Capacitive voltage transformer for a metal-enclosed, gas-filled high-voltage system |
| 11/23/1999 | US5990674 Clamping mechanism for mounting circuit condition monitoring devices on cables of various diameters |
| 11/18/1999 | WO1999050678A3 Method and configuration for processing at least one analog signal comprising several frequency ranges |
| 11/18/1999 | DE19821953A1 Instrument transformer for current and voltage measurement used in monitoring and control or automation of medium and large |
| 11/17/1999 | CN1235359A Current transformer for metal-enclosed gas-insulated high-voltage installation |
| 11/17/1999 | CN1235306A Instrument communication through signal Jacks |
| 11/17/1999 | CN1235276A Semiconductor magnetic resistance current sensor with antimony-indium compounds and method therefor |
| 11/16/1999 | US5987195 Fiber optics apparatus and method for accurate current sensing |
| 11/16/1999 | US5986444 Device having a shaped, magnetic toroidal member and a magnetoresistive sensor for detecting low magnitude electrical currents |
| 11/16/1999 | CA2188305C Self-powered powerline sensor |
| 11/11/1999 | WO1999057578A2 Ac current sensor having high accuracy and large bandwidth |
| 11/11/1999 | WO1999041616A8 Apparatus for fast measurements of current and power with scaleable wand-like sensor |
| 11/11/1999 | CA2333616A1 Ac current sensor having high accuracy and large bandwidth |
| 11/10/1999 | EP0955660A1 Electric circuit breaker for apparatus having a current overload and undervoltage function and a current overload sensor therefore |
| 11/09/1999 | US5982265 Current-detection coil for a current transformer |
| 11/04/1999 | WO1999056074A2 Element comprising a layer structure and a current-directing means |
| 11/04/1999 | DE19902279A1 Apparatus for measuring component of electrical field |
| 10/28/1999 | WO1999054740A1 A current measuring device |
| 10/27/1999 | EP0951648A1 Ceramic fiber optic current sensor |
| 10/26/1999 | US5973492 High accuracy optical current transducer thta eliminates birefringence |
| 10/26/1999 | CA2074827C Integrated optics pockels cell voltage sensor |
| 10/21/1999 | WO1999053331A1 Arc detection sensor utilizing discrete inductors |
| 10/20/1999 | EP0803067B1 Two-way dc-to-dc voltage converters and current sensor |
| 10/20/1999 | CN1232183A Automatic power turn-on circuit for battery-powered voltage measurement apparatus |
| 10/19/1999 | US5969517 Apparatus for performing quantitative measurement of DC and AC current flow in integrated circuit interconnects by measurement of magnetic fields with a magneto optic laser probe |
| 10/14/1999 | DE19907961A1 Instrument communication via signal contact bushes |
| 10/13/1999 | EP0808460B1 Current-detection coil for a current transformer |
| 10/13/1999 | CN2343659Y High-precise high-voltage current transformer |
| 10/12/1999 | US5966008 Radio-interrogated, surface-wave technology current transformer for high-voltage systems |
| 10/07/1999 | WO1999050678A2 Method and configuration for processing at least one analog signal comprising several frequency ranges |
| 10/06/1999 | EP0947843A2 Current measuring method |
| 10/06/1999 | EP0947836A2 Instrument with installation-evident accessory modules |
| 10/06/1999 | EP0897542B1 Current sensor, in particular for low currents |
| 10/06/1999 | CN2342376Y Electronic voltage mutual inductor |
| 10/05/1999 | US5963185 Display device with variable color background area |
| 10/05/1999 | US5963038 Method of testing a connection which includes a conductor in an integrated circuit |
| 10/05/1999 | US5963026 Method and device for the measurement of electric currents in at least two measuring ranges |
| 09/30/1999 | DE19813890A1 Verfahren zur Strommessung Method for current measurement |
| 09/30/1999 | DE19813112A1 Motor current measuring method for electric motor |
| 09/30/1999 | DE19812799A1 Gasisolierte, metallgekapselte Schaltanlage Gas-insulated, metal-enclosed switchgear |
| 09/30/1999 | DE19811366A1 Stromsensor Current sensor |
| 09/29/1999 | EP0945730A2 Gas-insulated metal-clad switchgear |