State two main consumers of electricity transmitted at low frequency Calculate the primary voltage of a transformer if the primary winding is 50 turns and the secondary winding is 150 turns with 450 volts.

Answers

Answer 1

Answer:

1) a. Customers requiring AC electric power transmission for powering remote devices which may include a subsea transmission system where power is distributed to subsea devices

b. Customers that utilize commutator-type motors

2) The primary voltage is 150 volts

Explanation:

The parameters given are;

Number of primary winding, [tex]N_p[/tex] = 50 turns

Number of secondary winding, [tex]N_s[/tex] = 150 turns

Voltage in secondary winding, [tex]V_s[/tex] = 450 volts

Voltage in primary winding = [tex]V_p[/tex]

The relation between [tex]N_p[/tex], [tex]N_s[/tex], [tex]V_s[/tex] and [tex]V_p[/tex] is as follows;

[tex]\dfrac{V_p}{V_s} = \dfrac{N_p}{N_s}[/tex]

Which gives;

[tex]V_p = \dfrac{N_p \times V_s}{N_s}[/tex]

From which we have;

[tex]V_p = \dfrac{50\times 450}{150} = 150 \ volts[/tex]

The primary voltage = 150 volts.

Answer 2

What he/she said ^^^^^^^^

Related Questions

Explain how an electric transformer changes the voltage of the electric current. Why does a transformer work only with alternating current?

Answers

Answer:

An electric transformer is a device that uses electromagnetic induction to change the voltage of electric current. ... When alternating current passes through coil P, it magnetizes the iron core. Because the current is alternating, the magnetic field of the iron core keeps reversing.

A transformer needs an alternating current that will create a changing magnetic field.

Transformer work only on ac supply because an alternating current is needed to create a changing magnetic field.

A transformer is a static device that converts voltage or current from one level to another level.

Transformer work only on ac supply because an alternating current is needed to create a changing magnetic field. A changing magnetic field also induces a changing voltage in a coil. This is the basis of how a transformer works.

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