You are given two system areas connected by a tie line with the following characteristics:
![340_793ce6fa-d364-47f4-94e3-0a0c7143de42.png](https://secure.tutorsglobe.com/CMSImages/340_793ce6fa-d364-47f4-94e3-0a0c7143de42.png)
A load change of 100 MW occurs in area 1. Assume both areas were at nominal frequency (60 Hz) to begin.
(a) What is the new steady-state frequency in Hz?
(b) What is the change in tie-line flow in MW?