Question
Asked Nov 26, 2019
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7.
If your company has just purchased a new machine which has a nameplate rating of 23 Amps at
240 volts. What size conductors would you run to this machine?
How many conductors would be required for this machine if it also required 120 VAC?
8.
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7. If your company has just purchased a new machine which has a nameplate rating of 23 Amps at 240 volts. What size conductors would you run to this machine? How many conductors would be required for this machine if it also required 120 VAC? 8.

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Expert Answer

Step 1

As given that machine have rating of 240 volt and 23 amp.

Therefore, power generated by machine=V×I

Power =240×23 W

Power =5520 W

Hence, Equal amount of power and current is  flowing through conductors.

 

Assume that the conductor material is copper

Formula for resistance is

R =
Р
hence,
232
Ω
R =
5520
R 0.09
And
pl
R
A
"p = 0.0171 Ohm mm2 / m
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R = Р hence, 232 Ω R = 5520 R 0.09 And pl R A "p = 0.0171 Ohm mm2 / m

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Step 2

Assume length of wire is 1000 mm

Therefore, plugging...

0.0171x 1000
0.09
A
A 190mm2
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0.0171x 1000 0.09 A A 190mm2

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