GK
TECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Larger buildings may be supplied with a medium voltage electricity supply, and will required a substation or mini-sub. What is the main item of equipment contained in these?
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Transponder
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Transformer
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Transducer
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Converter
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Explanation:
Detailed explanation-1: -The transformer is used to transform a medium voltage supply to a low voltage supply, e.g. from 11 000 V to 400 V. A transformer is rated in KVA, kilo-Volt-Amps, which is a measurement of electrical power.
Detailed explanation-2: -In the UK, the declared voltage and tolerance for an electricity supply is 230 volts-6%, +10%. This gives an allowed voltage range of 216.2 volts to 253.0 volts.
There is 1 question to complete.