asked 200k views
4 votes
A single area consists of two generating units, rated at 400 and 800 MVA, with speed regulation of 4 percent and 5 percent on their respective ratings. The units are operating in parallel, sharing 700 MW. Unit one supplies 200 MW and unit 2 supplies 500 MW at 1. 0 per unit (60 Hz) frequency. The load is increased by 130 MW. Assume there is no frequency-dependent load. Find the steady-state frequency deviation and the new generation on each unit.

asked
User Pdw
by
8.3k points

1 Answer

4 votes

Look at the Picture.
Frequency deviation = (830 MW - 830 MW) / (2π60*5 s)

A single area consists of two generating units, rated at 400 and 800 MVA, with speed-example-1
answered
User Siwymilek
by
8.7k points