DIRECTINOAL OVER CURRENT RELAY


~ This type of relay consists of both kinetic and overcurrent types.

~ both types of elements are housed in the same case.

~ in a series of circuits that generate the elux of the contact over difficulty of the direct canal unit.

~ This means that the over current unit cannot be operated even if the cut direction is not distorted and the current value increases no matter what.

~ This relay can only be operated if the direction is reversed and over-rated, and the trip coil can be energized,

~ This system cannot run if the two units are connected in contact series instead of the above system.

~ because the dead current circuit causes the over current unit to operate and any other circuit, due to breaker trip.

~ reverses the power flow in the directional unit, its contact closes and trips.

~ The coil is energized.

~ The circuit breaker operates.  

~Thus mall functioning occurs incorrectly.