Showing posts with label energy manager question. Show all posts
Showing posts with label energy manager question. Show all posts

Saturday, July 11, 2015

Answer this Question.

EMQ1.  The company "Save Electricity the Smart Way" sells you a gadget that lovers the voltage of your electric water storage heater by 10% and saves electricity by 10% . The heater is rated at 2 KW at 230V . Do you agree with the claim of the company ? Support your opinion.


EMQ1.Ans: The answer is "No electricity saved". Due to the lower voltage the KW load will go down. Therefore the process to heat the water will take longer based on the energy balance. The electricity consumption in fact goes slightly up on paper.

What is transformer ?

What is transformer ? 1.Transformer is a static machine. 2. It transfers AC current from one voltage to another voltage at same freq...