ECE526 Homework assignment #5

 

Two signals, HW5x1.xls and HW5x2.xls shown in the figure below have been sampled eight times per cycle (sampling rate = 480).

 

An instantaneous current relay is to be designed with a pickup of 5 amps (RMS).

 

 

  1. Model a TOC relay with U.S. Inverse (U2) characteristics for the case when Ipu = 5A rms with a TDS of 1.

 

  1. Plot the relay disk position with respect to time as demonstrated in Lecture 15.

 

  1. Verify the relay operation with the family of curves shown in Figure 4.5 of the text.

 

  1. Complete parts 1 through 3 above for both signals. 

 

  1. Compare the results and discuss results