Mains electricity and safety

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Question 1
Hard

An electric scooter battery charger is connected to the 230 V a.c. domestic mains supply.

The output of the charger is 48 V and it provides a d.c. charging current. The charging process automatically stops if the current exceeds 20 A.

A wall-mounted electric scooter charger connected to a scooter battery pack via a thick cable. The label on the charger reads: - Input: 230 V, 50 Hz a.c. - Output: 48 V d.c. - Max current: 20 A

Explain how the electrical components inside the charger can be chosen and connected together to provide this specific output and safety feature.

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Mains electricity and safety Questions

  1. GCSE
  2. /Physics
  3. /Mains electricity and safety