Which of the following statements is true of delta-configured voltage systems?

In a delta-configured voltage system, the relationship between line current and coil (or phase) current is determined by the wiring configuration and the properties of three-phase systems. In a delta configuration, each coil or phase is connected between two lines. This results in a distinctive relationship where the line current is greater than the coil current.

The formula Icoil = Iline / 1.732 arises from understanding the mechanics of three-phase systems. The factor of 1.732 is the square root of three (√3), which is a critical element in converting between line and phase quantities in three-phase systems. Since the current in each coil is shared among two line currents, the coil current is effectively reduced by this factor.

Understanding this relationship is essential for electrical professionals, as it affects calculations involving circuit loads, protective devices, and equipment ratings in delta configurations. Recognizing that the line current is higher allows for better planning and design of electrical circuits to ensure safety and efficiency.