A 1000 A/20 kV/25 kHz-500 kHz Volt-Ampere-Wattmeter for loads with power factors from 0.001 to 1.00

Clarke, K.K.; Hess, Donald T.

doi:10.1109/19.481326

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…Quadrature phase shifter (QPS) is a signal processing unit transforming an input signal x(t) which is a timefunction of an amplitude A and frequency$ x ( t ) = Asin( 2nft + q ) (3) into the output signal y(t) satisfying the quadrature condition:…”

Section: Principle Of Operationmentioning

confidence: 99%

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A high performance frequency insensitive quadrature phase shifter and its application in reactive power measurements

Djokic¹,

Bosnjakovic³

IMTC/98 Conference Proceedings. IEEE Instrumentation and Measurement Technology Conference. Where Instrumentation Is Going (Cat

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Abstroct -This paper describes U high precision circuit for quadrature phase shifting in which frequenq controlled signal amplification is introduced so thut the umplitude of the phiuse shijited signal is not dependent on the frequency of the input signal. The implementation of the proposed quudrature phase shijiter is aimed at high accuracy reactive power memurements in AC power systems. The implementation of the new phase shijiter effectively reduces var/vcrrh measurements to watt/ivatthour measurenients. A prototype has been built and the test results are presented.

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Section: Principle Of Operationmentioning

confidence: 99%

“…It follows from (3) and (5) that the input/output relationship of the QPS can be described by the first-order differential equation: as well as:…”

Section: Principle Of Operationmentioning

confidence: 99%

A high performance frequency insensitive quadrature phase shifter and its application in reactive power measurements

Djokic¹,

Bosnjakovic³

IMTC/98 Conference Proceedings. IEEE Instrumentation and Measurement Technology Conference. Where Instrumentation Is Going (Cat

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Power Measurement

Bucci

Landi

Capua

1999

Wiley Encyclopedia of Electrical and Electronics Engineering

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Wattmeters

Mirri¹,

Pasini²,

Iuculano³

et al. 1999

Wiley Encyclopedia of Electrical and Electronics Engineering

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The sections in this article are Equally‐Spaced Sampling Wattmeters Random Sampling Wattmeters Performance Analysis of the Sampling Wattmeters Time‐Jittered Equispaced Sampling Wattmeters Input Conditioning Circuits Wattmeters Calibration Power Quality Analyzer

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A 1000 A/20 kV/25 kHz-500 kHz Volt-Ampere-Wattmeter for loads with power factors from 0.001 to 1.00

Cited by 8 publications

References 4 publications

A high performance frequency insensitive quadrature phase shifter and its application in reactive power measurements

A high performance frequency insensitive quadrature phase shifter and its application in reactive power measurements

Power Measurement

Wattmeters

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