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Content Provider | IEEE Xplore Digital Library |
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Author | Fam, W.Z. |
Copyright Year | 1963 |
Abstract | A transducer which combines both current and voltage sensors in a single integrated unit is described. The principle of operation is based on Poynting's theorem which defines the rate of how of electromagnetic energy in terms of the electric and magnetic field intensities at a point in space. Current is measured by sensing the tangential component of the magnetic held, and voltage is measured by sensing the radial component of the electric field in a well-defined region around the high-voltage conductor. Signals from the two sensors are processed by simple electronic circuits to give an output suitable for direct connection to modern analog and digital meters, relays and computers for continuous on-line monitoring and protection. The new transducer overcomes the limitations of conventional current and voltage transformers. It is also ideally suitable for incorporation as a module in gas-insulated systems. Typical applications of the transducer in high-voltage power systems are also discussed. |
Sponsorship | IEEE Instrumentation and Measurement Society Bureau international des poids et mesures IEEE International Bureau of Weights and Measures (BIPM) URSI NBS Agency Ind. Sci. & Technol., Min. Int. Trade & Ind. Sci. Council Japan International Union of Pure and Applied Physics (IUPAP) NIST NRCC National Conference of Standards Laboratories (NCSL) Allen Osborne Associates Andeen-Hagerling, Inc. Ballantine Lab. Inc. Clarke-Hess Communications Research Corp. Fluke Corporation Guildline Instruments Hewlett-Packard Co. Julie Res. Lab. Inc. Keithley Instruments, Inc. Measurements International Ltd. Canada QuadTech Inc. Quantum Design Inc. Rotek Instrum. Corp. Tegam Inc. Tektronix Inc |
Starting Page | 190 |
Ending Page | 194 |
Page Count | 5 |
File Size | 773685 |
File Format | |
ISSN | 00189456 |
Volume Number | 45 |
Issue Number | 1 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1996-02-01 |
Publisher Place | U.S.A. |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Transducers Voltage transformers Magnetic field measurement Magnetic sensors Current measurement Electric variables measurement Electromagnetic measurements Power system relaying Power system protection Sensor phenomena and characterization |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering Instrumentation |
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