English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

Question 1. Say you live in a country where the voltage is 200-210V, purposely lower in order to meet the demands of a country. Is there any harm or effect on the appliance which is rated 220-240V in the long run or the short run.

Question 2. Say if you have an appliance that has been rated 220V and the supply voltage coming into that appliance is 240V. Is there any effect/harm done to the appliance in the long run or short run.


Links to websites in order to understand these phomena about electricity would be of great help. thanks

2007-07-25 23:39:26 · 3 answers · asked by Mr.tech 1 in Science & Mathematics Engineering

3 answers

The effects are minimal, but noticable. The power output of the machine is greater at higher voltage and less at lower voltage. Everything basically works from 70-110% of rated voltage. Lights and heaters outputs are proportional to the square of the voltage. These devices last longer the lower the voltage. Motors don't like to work more than 10% from their ratings. For instance if an airconditioner motor is operated at 70% of rated voltage it will have to operate twice as long in its duty cycle to produce the same amount of cooling. This is similar for a water pump. So motor life will decrease with both higher and lower voltages.

I recommend your local library for more information.

2007-07-29 08:20:24 · answer #1 · answered by Anonymous · 0 0

If you are using resistive loads like incandescent bulbs, the appliances will function fine, but in the first case, the bulb will be dimmer and in the second case, brighter. Fans will run slower and faster respectively. Heaters will work but again with lesser or greater output.

Tube lights, TVs etc., may or may not function if the voltage is too low or too high. The range indicated by you is within + or - 10% and is considered acceptable.

2007-07-26 00:00:56 · answer #2 · answered by Swamy 7 · 0 0

You will see no differance in how the appliance will work. If there was a larger differance between the rate voltage of the appliance and the incoming voltage then it would just blow the breakers.

2007-07-25 23:49:55 · answer #3 · answered by Anonymous · 0 0

fedest.com, questions and answers