Electrical Engineering - Three-Phase Systems in Power Applications - Discussion
Discussion Forum : Three-Phase Systems in Power Applications - General Questions (Q.No. 11)
11.
A three-phase generator is connected to three 90 
load resistors. Each coil generates 120 V ac. A common neutral line exists. How much current flows through the common neutral line?
load resistors. Each coil generates 120 V ac. A common neutral line exists. How much current flows through the common neutral line?Discussion:
21 comments Page 2 of 3.
Gkakar said:
1 decade ago
But he didn't write in question that a balance three phase.
HL Pipraiya said:
1 decade ago
In a balanced 3 phase circuit effective neutral is alwayas zero.
Ahmed said:
1 decade ago
Surely the neutral current in balanced 3 phase circuit equal to zero.
Chinna said:
1 decade ago
Neutral is always zero potential difference.
Amagond Kumbar said:
1 decade ago
Each coil generates 120V AC means that operation is balanced and neutral implies that there is star connection and we have no current flow through neutral.
Kishan ramsnehi said:
1 decade ago
Because suppose condition is not balanced than what happening?
Naman said:
1 decade ago
In three phase balance circuit, The neutral current is zero.
Alkesh Harode said:
1 decade ago
Absolutely Right, Because in three phase system neutral current will be zero if three phases are balanced condition.
Arun said:
1 decade ago
In a balanced 3 phase circuit neutral current is always zero.
Wilfred said:
1 decade ago
Here 3ph generator connected to a 3ph Resistive load. A common neutral line exist implies both generator and the resistive load neutral is grounded. ONCE neutral is grounded, current through neutral is zero. 3In= Ia+Ib+Ic....
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