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Consider a step voltage wave of magnitude 1 pu travelling along a lossless transmission line that terminates in a reactor. The voltage magnitude across the reactor at the instant the travelling wave reaches the reactor is
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- – 1 pu
- 1 pu
- 2 pu
- 3 pu
Correct Option: A
E(s) = 1/S [step voltage wave having magnitude 1 p.u.]
Voltage across the inducter is,
| V(s) = | = | LS | ||
| Zc + LS | Zc + LS |
| V(s) = | |||||
| S + | |||||
Taking inverse Laplace transform, we get v(t)
v(t) = e(-zc/L)t
At
t = 0
v(t) = 1 p.u.
