A delta three-phase power supply provides:

A. 208 V between the legs.
B. 480 V between the legs.
C. 240 V between the legs.
D. 120 V between the legs.



Answer :

To determine the voltage provided by a delta three-phase power supply between the legs, let's review a few key concepts about three-phase power systems.

A delta three-phase power supply is a type of electrical connection used for power distribution. In this configuration, the three coils or windings of the generator are connected in a triangle or delta shape.

One of the key features of a delta system is that it typically provides a line-to-line voltage, which is the voltage measured between any two of the three phase conductors. The voltages between each pair of the three phases (also known as legs or lines) in a delta connection are the same.

Based on the options provided:
- Option A: 208 V
- Option B: 480 V
- Option C: 240 V
- Option D: 120 V

Given the correct information about standard voltages in a delta three-phase power supply setup, the typical voltage provided between the legs in such a system is indeed:

Option C: 240 V

Therefore, the correct answer is:
OC. 240 V between the legs.