Negative Phase Sequence Indicator

ISBN-13: 9783659901225 / Angielski / Miękka / 2016 / 80 str.

Badhon Biswas

Opis

The order in which the 3-phases attain their peak or maximum value and the three generated electrical voltages or currents rotate is called the phase sequence. Each voltage is separated from the next generated voltage by 120 degrees. The 3-phase has only two possible sequences ABC or ACB, positive and negative sequence respectively. In normal balanced condition, the 3-phase sequential order is positive i.e. ABC. In unbalanced condition, this sequence changed and turned into negative sequence components results the sequential order to change. Negative phase may cause damage to rotatory machines i.e. AC machines running on 3-phase. Negative phase sequence components create an opposite rotating magnetic field in the stator and induce voltages in the rotor. These induced voltages have a frequency that is double the system frequency.

O autorze

An Electrical Design Engineer with a passion for technology and new Idea. I have over 3 years of experience working in design section.I am professional in electrical design and drawing of multi-storied residential and commercial building.