An offshore wind turbine is connected to a coastal distribution network. The transformer beside the turbine and the transformer at the coast are both 100% efficient.

Quantity	Value
electrical power generated	$MW6.6\ \mathrm{MW}$
potential difference across the primary coil of the first transformer	$kV22\ \mathrm{kV}$
number of turns on the primary coil of the first transformer	600
number of turns on the secondary coil of the first transformer	3000
total resistance of the transmission cable	8.0 Ω
potential difference supplied to the coastal network	$kV11\ \mathrm{kV}$

The secondary coil of the first transformer supplies the transmission cable. At the coast, the cable is connected to the second transformer, which supplies the coastal network.

An offshore wind turbine is connected to a coastal distribution network. The transformer beside the turbine and the transformer at the coast are both 100% efficient.

Quantity	Value
electrical power generated	$MW6.6\ \mathrm{MW}$
potential difference across the primary coil of the first transformer	$kV22\ \mathrm{kV}$
number of turns on the primary coil of the first transformer	600
number of turns on the secondary coil of the first transformer	3000
total resistance of the transmission cable	8.0 Ω
potential difference supplied to the coastal network	$kV11\ \mathrm{kV}$

The secondary coil of the first transformer supplies the transmission cable. At the coast, the cable is connected to the second transformer, which supplies the coastal network.

13.2 Transformers and the National Grid

Question 13

Markscheme

13.2 Transformers and the National Grid

Question 13

Markscheme

13.2 Transformers and the National Grid

Question 13

13.2 Transformers and the National Grid Questions

13.2 Transformers and the National Grid

Question 13

13.2 Transformers and the National Grid Questions