is it required to use freewheeling diode across a contact in ac circuit?

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2007-03-29 01:11:34 · 4 answers · asked by sandhyamohan 1 in Science & Mathematics ➔ Engineering

It is required in an inductive circuit to prevent a spark.

2007-03-29 01:23:01 · answer #1 · answered by Mesab123 6 · 0⤊ 0⤋

Freewheeling diodes are used only in DC circuits. If you wish to protect the contacts, use a Sidac from Teccor. Or a Varistor.

2007-03-31 15:57:13 · answer #2 · answered by charley128 5 · 0⤊ 0⤋

Only if there is a heavy inductive load in the line to supress voltage spikes.

2007-03-29 01:18:34 · answer #3 · answered by Gene 7 · 0⤊ 0⤋

no actually its not required
free wheeling diode is required when there is a need for discharging path (while using capacitors)

2007-03-29 01:18:19 · answer #4 · answered by Karthik 1 · 0⤊ 0⤋