Of the following answers, which is NOT a way for employees to control exposure routes?

Engineering

1 answer:

Katena32 [7]3 years ago

4 0

Answer: Of the following answers, which is NOT a way for employees to control exposure routes?

Explanation:

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Assume a voltampere-base S3b = 100 MVA and a line-to-neutral voltage base Vb = 7.5 kV. Find the current base Ib. Also, by using

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<u>Explanation:</u>

Let the frequency of the operation "W"ras/s

$\begin{aligned}V(t) &=7.5 \cos (\omega t+\varnothing v) k V \\&=7.5 \cos w t \quad k V \\I(t) &=\cos \left(\omega t+\phi_{i}\right) \quad k A \\&=\cos (\omega t-\pi / 6) \quad k A\end{aligned}$

$$\therefore$ Power, $P(t)=v(t) I(t)$$$\begin{array}{l}=[7.5 \cos \omega t][\cos (\cot -\pi / 6)] \times 10^{6} w \\=7.5 \cos ^{2}(2 \omega t-\pi / 6)+7.5 \cos \left(\pi_{6}\right) MW \\=3.75+7.5 \cos (2 \omega t-\pi / 6) \quad MW\end{array}$$$

$Real powel, $P=\left(7.5 \times 10^{3}\right)\left(10^{3}\right) \cos \left(\varnothing_{v}-\varnothing_{I}\right)$$$\begin{array}{l}=7.5 \cos (-\pi / 6) MW \\=3.75 MW\end{array}$$$