New approach for power profile determination of remote controlled electrical consumers

Unhauzer, Attila; Szarka, Angéla Váradiné

doi:10.1016/j.measurement.2013.06.004

Cited by 1 publication

(1 citation statement)

References 31 publications

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“…The system monitors electrical parameters like voltage, current and power and provides a controlling mechanism of appliances, by which electrical expenses of consumers can be reduced. Centralized ripple control system technique has been developed by Unhauzer and Szarka (2014) for efficient utilization of power through controlled storage and water heaters. Lehtonen and Hallstrom (2014) have developed a digitizer for measurement of electrical power, which can be connected with a PC through a USB port.…”

Section: Introductionmentioning

confidence: 99%

Study of an accurate electronic power measurement technique using modified current transformer and potential transformer

Saha¹,

Bera

Mandal³

et al. 2019

Transactions of the Institute of Measurement and Control

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In high tension power measurement, potential transformer (PT) and current transformer (CT) are used in order to reduce high tension voltage and current, respectively. But both PT and CT suffer from ratio error and phase angle error, which may produce severe error in power measurement. In the present paper, modified designs of PT and CT are combined to develop an electronic power measurement circuit in order to reduce the measurement errors. The modified PT and CT have reduced phase angle error and ratio error. In the power measurement circuit, the instantaneous product of the outputs of these PT and CT is determined by using a simple light emitting diode (LED)-light dependent register (LDR) or LED-LDR-based product circuit. The operation of the proto type power measurement unit designed in the present work has been experimentally tested and the measured outputs are compared with the readings of laboratory standard wattmeter. The experimental results are reported in the paper. Very good linear characteristics are observed.

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Section: Introductionmentioning

confidence: 99%