POWER SYSTEM 1 TOPIC 1 PART 1

The main characteristics of electricity supply are as follows except:

• Electricity cannot be stored in bulk form.

• Increases in population, industrial expansion, housing areas and etc lead to the continuous

  increase in demand for power.

• Power station is located near to the resources location.

• Synchronous Generator manufactured as 3-phase.

List of parts of Power system.

• Generation, transmission and distribution.

• generation, transmission and transformer

• generation, impedance and distribution.

• Motor, transmission and distribution.

Powers supplied by all power stations are based on

• Power Demand

• Power Generated

• Power Transmit

• Power Store

Which type of power station deliver full power continuously i.e. 24 hours a day and 365 days a year?

• Base-power station

• Intermediate-power station

• Peak-power station

• Continuously power station

Which type of power station deliver power for short intervals during the day?

• Base-power station

• Intermediate-power station

• Peak-power station

• Continuously power station

Which source of power station suitable for Intermediate-power station?

• Hydro

• Coal

• Nuclear

• Wind

Select TWO types of Transmission Lines

• Overhead transmission line

• Underground transmission line

• Wireless transmission line

• Upperground transmission line

Select THREE types of substation normally used in power system. (Multiple Answer)

• Transmission substation

• Distribution substation

• Interconnecting substation

• Transformer substation

In distribution, power is distribute into consumer with certain level of voltage. State TWO voltage levels at final destination of distribution.

• 415V 3phase

• 240V 1phase

• 240V 3phase

• 415 1phase

Below is the advantages of grid systems in power system except:

• Economy

• Stability in operation

• Service continuity

• Increase Power Storage