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Stray Parameter Evaluation of Voltage Transformers for PQ Measurement in MV Applications

Related tags

#Electricity Network #Monitoring and Control

Publications - Paper

Stray Parameter Evaluation of Voltage Transformers for PQ Measurement in MV Applications

The article presents a simplified numerical-experimental model of an inductive voltage measurement transformer for medium voltage, which can be used to analyze its broadband behavior for the measurement of Power Quality phenomena, which are increasingly important in current electrical systems.

Power quality (PQ) monitoring is one of the key tasks in current power systems. In transmission and distribution networks, PQ phenomena are often measured by inductive voltage transformers (VT) installed for measurement and/or protection applications. The accuracy requirements of VTs should ideally be met under real operating conditions, which can differ from calibration conditions, particularly due to the presence of environmental or circuit-related influencing factors.

 

The impact of such influencing factors on the performance of VTs in PQ measurements is an open issue, not fully addressed in the literature. In this context, the present work introduces a simplified numerical-experimental model of medium voltage (MV) inductive VTs, which can be used for analyzing the broadband behavior of VTs in PQ applications, even in the presence of one or more influencing factors. The results provided by the model are experimentally validated, and future applications are discussed.

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Rif.RSE​

22004804

Destination​

20th International Conference on Harmonics & Quality of Power (ICHQP), Naples, May 29 - June 1, 2022

Publication Date

01 June 2022

Authors​

D. Giordano, G. Crotti, P. Sara Letizia (National Institute of Metrological Research Turin), D. Palladini (RSE S.p.A.)

Publication Type

Paper

Projects

Measurement methods and test procedures for assessing accuracy of instrument transformers for power quality measurements (IT4PQ)

Target​

Research

Related tags

#Electricity Network #Monitoring and Control

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