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2 meg ohms, 2,000,000 ohms to ground.

1 meg ohms.

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13y ago
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13y ago

R = U/I (Ohm's law)

R = Insulation resistance.

U = Test votage. Value depending on motor rated voltage.

I = Measured current

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13y ago

As per AS3000 wiring rules its no less then 1 mega ohm

your ideal reading should be infinite

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11y ago

(Rated voltage + 1 ) mega ohm

ex- voltage-415v

then rated voltage is 0.415+1 megaohm

its mean 1.415 megaohm

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11y ago

12mohm

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Q: What is the formula used to determine insulation resistance in a motor?
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Related questions

What is difference between insulation resistance test and polarization index?

Insulation resistance test: This test is used to find the insulation resistance of motor for 1 min or 10 min through high voltage insulation tester. By this we can find the insulation level. Polarization index: This is the ratio between insulation resistance for 10 min to insulation resistance for 1 min.


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Why does a motor boat slow to a stop when the motor dies?

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