Chapter 17, Problem 1RQ

The two popular operating voltages for residences are ______V and _____V.

To determine

The two popular operating voltages for residences.

Answer to Problem 1RQ

The two popular operating voltages for residences are $115\text{V}$ and $230\text{V}$.

Explanation of Solution

The residences are generally furnished with the single phase power supply.

The below figure represents the wiring diagram of main circuit breaking panel for a residence.

  

    Figure-(1)

The voltages $115\text{V}$ (single phase) is used for the common appliances like TV, fan many other and $230\text{V}$ (single phase) is used for the heavy duty appliances like electric oven, dryer, refrigerators and air conditioners.

The equipment which are used in commercial buildings and the factories requires three phase power supply.

The voltage $460\text{V}$ (three phase) is used for the electric motors and $560\text{V}$ (three phase) is used for the industrial systems.

Conclusion:

The two popular operating voltages for residences are $115\text{V}$ and $230\text{V}$.