Solid earthing a power transformer means

Solid earthing a power transformer means:

  1. Neutral is directly connected to earth via conductor
  2. Neutral is connected to earth via a resistor
  3. Neutral is connected to earth via a suppression coil known as Peterson coil
  4. The neutral is connected to chassis of metal which is connected to earth via a resistor

Correct answer: 1. Neutral is directly connected to earth via conductor

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