Advertisements
Advertisements
Question
At what voltage is the electric power from the generating station transmitted? Give reason to your answer.
Advertisements
Solution
Electric power from the generating station is transmitted at 132 kV because a voltage higher than this causes insulation difficulties, while a voltage lower than this involves high current and loss of energy in the form of heat `(I^2Rt)`.
APPEARS IN
RELATED QUESTIONS
Name the device used to increase the voltage at a generating station.
Explain with the aid of a simple diagram, the transmission of electric power from the generating station to your house.
Name the device used to decrease the voltage at the substation for its supply.
- Name the three connecting wires used in a household circuit.
- Which of the two wires mentioned in part (a) are at the same potential?
- In which of the wire stated in part (a) the switch is connected?
What is the pole fuse? Write down its current rating.
The electrical appliances in a house are connected in ______.
What is the nature of current transmitted from the power station?
The voltage of power generated at the generating stations is first stepped up before its transmission. Give reason.
State the function of the following in a house circuiting of main fuse.
State the function of the following in a house circuiting of main switch.
