A power quality (PQ) and harmonics monitoring activity on the power systems in a metro-transit system has been performed by means of Instrument Voltage Transformers (IVTs) there installed. With the aim of identifying IVTs influence on the measurements, a wide laboratory survey has been carried out. The paper reports the present state of the work, in progress for many years, on the IVTs experimental analysis. In particular the paper deals with the main results obtained by the laboratory survey on two main types of IVTs: IVTs with equal constructive features and manufacture, IVTs with equal constructive features but different manufacture. The choice of these two types of IVTs is aimed at evaluating the impact of the production process and of the manufacture on IVTs behavior in switching transients.
IVTs Behavior Characterization in Switching Transients / Falvo, Maria Carmen; Grasselli, Umberto; Lamedica, Regina; G., Maranzano. - STAMPA. - (2009). (Intervento presentato al convegno IPST 2009 - International Power System Transients Conference tenutosi a Kyoto - GIAPPONE nel 2-6 Giugno 2009).
IVTs Behavior Characterization in Switching Transients
FALVO, Maria Carmen;GRASSELLI, Umberto;LAMEDICA, Regina;
2009
Abstract
A power quality (PQ) and harmonics monitoring activity on the power systems in a metro-transit system has been performed by means of Instrument Voltage Transformers (IVTs) there installed. With the aim of identifying IVTs influence on the measurements, a wide laboratory survey has been carried out. The paper reports the present state of the work, in progress for many years, on the IVTs experimental analysis. In particular the paper deals with the main results obtained by the laboratory survey on two main types of IVTs: IVTs with equal constructive features and manufacture, IVTs with equal constructive features but different manufacture. The choice of these two types of IVTs is aimed at evaluating the impact of the production process and of the manufacture on IVTs behavior in switching transients.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
