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phase neutal reversal detection

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tramp

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Hallo All,
I want to detect phase neutral reversal in single phase system which dont have earth connection.Can anybody suggest circuit for the same.
Regards,
tramp
 

reversal of voltage or current? can you provide any specs?
 

Reversal of voltage.240V/50Hz need a circuit which can differentiate phase & neutral.
If phase & neutral are connected with reverse polarity(ie neutral in place of phase & viceversa) circuit should detect this fault condition.
Thanks & regards
tramp
 

Do you have a ground connection? You need something to reference Phase and Neutral to.
 

Use a high amp diode in sereis with Neutral connection. The diode should be in reverse means Anode from the circuit and cathode return to AC Wall outlet. I think this should solve your problem but remember that the Diode should be able to take huge currents.

Thank you
 

Dear Friends

Actually we should not call AC as reverse. It is reverse and it happens 50 times in a second. Hence it is know as Alternating Current. Am I right?
 

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