In a.c. generators, voltage dip occurs in two stages.
(a)
(i) Sketch a voltage-time graph showing the pattern of voltage dip.
(ii) Referring to this graph, state with reasons the effect on the electrical system of a small power installation when a large load is suddenly switched
(b) Explain EACH of the following categories of voltage control:
(i) Error operated;
(ii) Functional.
Reference Answer
### (a) Generator Voltage Dip #### (i) Voltage-Time Graph A sketch is required to illustrate the dynamic response of the generator's terminal voltage when a large inductive load is suddenly applied. The graph plots Terminal Voltage (V) on the Y-axis against Time (t) on the X-axis. **Key Features of the Graph:**
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