Complete the sentences, using the words and word combinations from the text.
The transmission of electric power from a power station to consumers’ premises is known as ________________.
An electric supply system consists of three principal components _____________ .
The electric supply system can be broadly classified into _____________ .
Electrical power starts at the power plant and in almost all cases the power plant consists of a ______________ .
The transmission of electric power from a power station to consumers’ premises is done with hydroelectric dam, a large diesel engine or a gas turbine but in most cases by a ____________ .
The steam might be created by ________________ .
AC has some advantages over DC in a power transmission: _________________ .
It is easy to convert AC to DC but to convert DC to AC is ________________
Typical voltages for long distance transmission are in the range of 155,000 to 765,000 volts in order to reduce ___________.
To convert the generator's voltage (which is at the thousands of volts level) up to extremely high voltages for long-distance transmission, a substation uses ______________.
Replace the words in italics with the appropriate words. Translate the sentences.
Electricity generation is the first process in the delivery of electricity to consumers.
The primary method so far has been for public or private utility is to construct large scale centralized projects to generate and transmit the electricity required to economies.
After electricity is produced at power plants it has to get to the customers that use the electricity.
Our cities, towns, states and the entire country are criss-crossed with power lines that "carry" the electricity.
As large generators spin, they produce electricity with a voltage of about 25,000 volts.
The electricity first goes to a transformer at the power plant that boosts the voltage up to 400,000 volts.
The power lines go into substations near businesses, factories and homes and here transformers change the very high voltage electricity back into lower voltage electricity.
In your neighbourhood, another small transformer mounted on a pole or in a utility box converts the power to even lower levels to be used in your house.
Electricity is transmitted at high voltages (110 kV or above) to reduce the energy lost in long distance transmission.
Make up the questions using the words given and 5 questions of your own.
Present them as a dialogue with your partner.
A: What is/power/system/electric?
B: What/current/kind of/does/rely on/electric/it?
A: What/consume/kinds of devices/current/for their operation/electric?
B: What/is/current/type/of/used/electric/transmission/power/for?
A: Why/AC applied for/is/power transmission/distance/over/long?
B: (continue, please)
Work in pairs. Study the picture carefully. Describe a basic electric power system and its operation.
