How do you protect your appliances from harm in case of neutral failure in a t

How do you protect your appliances from harm in case of
neutral failure in a three phase power supply set up.

Question Posted / anoop

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How do you protect your appliances from harm in case of neutral failure in a three phase power sup..

Yes if neutral fails in a three phase power supply system
than the single phase voltage may increase. You can fix voltage sensitive suppressors across the supply line in your applances which will short circuit the excess voltage to earth and cause the RCCB to trip and save your appliances from further damage.

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3 Yes

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How do you protect your appliances from harm in case of neutral failure in a three phase power sup..

Answer / bharani

Whenever neutral fails in three phase system, the connected
loads will get connected between phases owing to floating
neutral.Hence depending on load resistance across these
phases, the voltage keeps varying between 230V to 400V.A
suitable servo stabilizer with wide input voltage range with
high & low cutoff may help in protecting the equipments.

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1 Yes

0 No

How do you protect your appliances from harm in case of neutral failure in a three phase power sup..

Answer / raj

Simply use ELCB or RCBO as incomer in the 3ph supply system
since if neutral opens it will trip the complete supply
without damaging to the system.

Is This Answer Correct ?

0 Yes

1 No

How do you protect your appliances from harm in case of neutral failure in a three phase power sup..

Answer / lokesh ranjith

If nuetral fails in three phase system nuetral floats then
230 volts in will become 420V caused damage to the
equipment

Is This Answer Correct ?

2 Yes

8 No

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