HOW TO FIND OUT 1. LINE CURRENT, 2. PHASE CURRENT IN AN
ALTERNATOR / TRANSFORMER WHICH IS FEEDING A I)STAR LOAD ii)
DELTA LOAD, USING A CLAMP METER.
NORMALLY WHEN WE USE CLAMP METER IN A DG SET THEN WHAT DO
WE GET?? PHASE CURRENT OR LINE CURRENT.
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Answer Posted / sumit dhar
Lets say we are using transformer,
A delta star transformer, the 3 phases coming out of the
star side of the transformer are the red, yellow and blue
wires abbreviated as R Y and B. The Current flowing through
these wires is the Line current. Using a Clamp meter, we
should clamp the meter to one of the wires say R phase. The
measured value will b Line current passing through R phase.
If the load is Balanced load, then equal amount of current
will flow through the Phases R Y and B respectively. After
that we can measure the Phase current using the formula
given above.
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