Volume No. 7 Issue No.: 4A Page No.: 1615-1621 April-June 2013

 

EFFECT OF VOLTAGE SAG TYPES ON AC MOTOR DRIVE : TEST RESULTS

 

Hardi Surya *, Daut I., Nisja I. 1 and Rohana2

1. Center of Excellence Renewable Energy, School of Electrical System Engineering,
UniMAP (MALAYSIA)
2. Universitas Muhamadyah Sumatera Utara (INDONESIA)

 

Received on : December 05, 2012

 

ABSTRACT

 

The primary function of any motor drives is to control the speed of a motor. Applications of motor drive have known as Adjustable Speed Drives (ASDs) have benefited many industrial facilities. Adjustable speed drives are reported one of the most sensitive loads to voltage sags because content electronically based. Many drives will trip if the voltage magnitude of one, two or all phases sag below 90%. When this occurs will cause shutdown the entire industrial operation process, thus to suffer financial losses and lost energy for utility. In this paper present results testing on sensitivity of AC motor drive during voltage sags types A, B, C and D. The ASD disrupts for all sag types with remaining voltages less than 70% of rated voltage and with duration 80 milliseconds and above. The ASD is more sensitive to voltage sag type A than other types.

 

Keywords : AC Motor adjustable speed drive, Voltage tolerance curve, Voltage sag types, AC motor drive, Tolerance Curve

 

 

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