Question about Elite Guardian HTS Transfer Switch 200 Amp, 120/240 Volts

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200 amp grounding


The heater service man says my grounding is bad in the service updated in 1994.
It carries a generator for emergency.
the amp meter shows 119.9 on the hot lead, 11. on neutral and 13 on ground. The grounding rod is fed by an old green colored braided wire.
Where I start?

Nono

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First check that you have good continuity on the earth conductor from the 200A switch to the grounding rod and that the connections are tight. Beware any live connectios.

If this is o.k check the condition of the ground rod as best you can looking for any corrosion of the rod.

If this loks o.k you may need to get the impedance (ohms) of the ground connection checked and compare this to the level recommended by the heater/generator supplier.

In the worst case you might need a new ground cable and rod(s) to get the required level.

Hope this will FIxYa.

Please remember to rate this solution

Posted on Dec 09, 2008

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To determine if your generator uses a floating or bonded neutral perform this simple test. With the engine off, use an ohm meter between the chassis ground and neutral conductors in the outlet. If it indicates open circuit, the neutral is floating. A short circuit will indicate neutral bonded to ground. I don't recommend doing this to household circuits due to the possibility of exposed AC and damage to the meter.

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