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Author Question: When connecting three transformers for three-phase use with the delta secondary, a voltage test ... (Read 62 times)

erikka246

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on: Nov 27, 2023

Question 1

Typical pole-mounted transformers are filled with


◦

oil.


◦

water.


◦

nonconductive cellulose.


◦

fiberglass insulation.



Question 2

When connecting three transformers for three-phase use with the delta secondary, a voltage test should be done before closing the secondary. The correct voltage reading is


◦

the rated secondary voltage value.


◦

twice the rated secondary voltage value.


◦

zero volts.


◦

the sum of the three transformer primaries.

Electricity for the Trades ¦ Petruzella ¦ 3rd Edition
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Marked as best answer by erikka246 on Nov 27, 2023

mllong

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Reply #1 on: Nov 27, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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erikka246

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Reply 2 on: Nov 27, 2023
Wow, this really help

lindahyatt42

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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