7.05 Three 30:1 step down transformers are connected wye-delta for stepping down th 132,000-volt three-phase transmission voltage. Calculate the secondary line voltage If each transformer is rated at 5,000 KVA, what total KVA load can be connected to th transmission system?

7.05 Three 30:1 step down transformers are connected wye-delta for stepping down th 132,000-volt three-phase transmission voltage. Calculate the secondary line voltage If each transformer is rated at 5,000 KVA, what total KVA load can be connected to th transmission system?

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.10MCQ: For large power transformers rated more than 500 kVA, the winding resistances, which are small...

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Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

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7.05 Three 30:1 step down transformers are connected wye-delta for stepping down the
132,000-volt three-phase transmission voltage. Calculate the secondary line voltage.
If each transformer is rated at 5,000 KVA, what total KVA load can be connected to the
transmission system?;

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