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 1 of 3.
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....
Bablu said:
9 years ago
@Gkakar.
In this question there is 3 phase generator is connected to three 90 ohm load resistors and each phase carry 120v so it's a balance 3 ph. In three phase balance circuit, the neutral current is zero.
In this question there is 3 phase generator is connected to three 90 ohm load resistors and each phase carry 120v so it's a balance 3 ph. In three phase balance circuit, the neutral current is zero.
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.
Alkesh Harode said:
1 decade ago
Absolutely Right, Because in three phase system neutral current will be zero if three phases are balanced condition.
Parth said:
8 years ago
Balance condition in the 3-phase generator.
Ir + Ib + Iy = 0.
Thus current in the neutral wire is equal to zero.
Ir + Ib + Iy = 0.
Thus current in the neutral wire is equal to zero.
Santos malik said:
9 years ago
Ans is 1.33 because hear 3ph and 3 loads does not balance load is maximum than the phase.
(1)
Anonymous said:
6 years ago
When the load is balanced in 3 phase system the neutral current is zero.
(1)
Ahmed said:
1 decade ago
Surely the neutral current in balanced 3 phase circuit equal to zero.
HL Pipraiya said:
1 decade ago
In a balanced 3 phase circuit effective neutral is alwayas zero.
Himanshu said:
7 years ago
Neutral current of any 3 phase balanced circuit is always zero.
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