16 4.2 Select correct diagram option A B C or D and short explanation why others

Question

16 4.2

Select correct diagram option A B C or D
and short explanation why others circuits are wrong

Data sheet first pic and pics of options

options

In the saw blade control circuit, the motor starter overload contact stops the motor when a sustained over- load occurs. The additional current drawn as the saw blade wears is not detected by the motor starter over- load. To detect the additional current, a current monitor is used. A current monitor is set to detect a current that is higher than normal but lower than a sustained overload. The current monitor has no built-in time delay. Because all motors draw higher-than-normal current when starting, an on-delay relay is used with a current monitor in motor circuits. The on-delay relay prevents the current monitor from de-energizing the motor starter during normal motor startup. 2. Redraw the saw blade control circuit line diagram, adding the current monitor and an on-delay relay from Data Sheet F on page 394. Add the current monitor so the motor starter is de-energized when the current monitor detects blade wear. Add the on-delay relay to prevent the current monitor contacts from de-energizing the s monitor and on-delay relay. The current monitor is set for 4 A, and the overload contacts are set for 6 A. Mark the on-delay relay setting for 5 sec. tarter during normal motor startup. Mark all terminal connections from the current L1 POWER LINE TO MOTOR

Explanation / Answer

Correct option is B for this problem because in all remaining circuit diagram relay switch(TRA) is closed.

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