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a delta-wye transformer has a turns ratio of 9:1. the primary line voltage is 3600 v. what is the secondary line voltage?

Sagot :

Secondary line voltage from any one of the three secondaries to the neutral is 400 volts, and secondary line voltage from any one secondary to another is 692.8 volts.

The voltage to the neutral from any one of the three secondaries will be:

[tex]\frac{3600 V}{9} = 400 V[/tex]

Any secondary will be connected to another secondary at a voltage of:

400 V √3 = 692.8 V

A three-phase electric power transformer known as a delta-wye transformer has wye/star connected windings on its secondary and delta-connected windings on its primary. On the wye output side, a neutral wire may be provided. It can be made from three independent single-phase units or a single three-phase transformer. The phrase "delta-star transformer" is comparable.

In order to serve three-phase distribution systems, delta-wye transformers are frequently used in commercial, industrial, and high-density residential settings.

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