When you are making a high potential test...

Question 1 of 270705eccefa4bacbc34ba4d4841c

When you are making a high potential test (insulation resistance) on the motor coils of repaired electrical machinery to ground, what would a low resistance reading indicate?

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Question 1 of 27070

When you are making a high potential test (insulation resistance) on the motor coils of repaired electrical machinery to ground, what would a low resistance reading indicate?

🔍 Key Concepts

• Insulation resistance testing (megger or hi-pot tests) on motor windings to ground • Relationship between resistance value and condition of insulation • What a low resistance path to ground physically means inside a motor

💭 Think About

• Think about what you are measuring between the motor windings and the motor frame (ground). If the insulation is perfect, should current flow easily or be blocked? • If the meter shows a low resistance between windings and ground, does that mean an easy path or a difficult path for current to leak? What does that imply about insulation condition? • Which options describe a condition where leakage current to ground is high versus very small?

✅ Before You Answer

• Verify that good insulation should show very high resistance (megaohms) to ground. • Confirm that a low resistance between winding and ground means a leakage or fault path exists. • Eliminate any choices that do not directly describe the actual physical condition of insulation between winding and ground.