The earth for an 11 kV to 400  V star delta transformer is formed by a Connecting the core of the transformer to earth b Connecting a primary winding to earth c Connecting the primary and secondary star points together d Connecting the star point to earth | Numerade
The earth for an 11 kV to 400  V star delta transformer is formed by a Connecting the core of the transformer to earth b Connecting a primary winding to earth c Connecting the
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Y-Δ transform Applications
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Laplace Transform Lecture 1 | Complex Number | Laplace transform | Laplace transform applications
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Laplace Transform Lecture 1 | Complex Number | Laplace transform | Laplace transform applications
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SOLVED: A 100 kVA 1100/600 V 3-phase Star-Delta transformer is tested on open circuit, giving a power reading of 1215 W. When tested on short circuit, the current reading on the HV side was found to be 40 A and the power, 1250 W. If the daily loading of this transformer is taken as given in Table 1 below, determine:Table 1Duration (hours) 6 8 10Fraction of full load (%) 25 57 80Power factor 0.60 0.74 0.8211 12 13The Full load copper loss (4)The All-Day efficiency of this transformer (13)If the c
SOLVED: A 100 kVA 1100/600 V 3-phase Star-Delta transformer is tested on open circuit, giving a power reading of 1215 W. When tested on short circuit, the current reading on the HV side was found to be 40 A and the power, 1250 W. If the daily loading of this transformer is taken as given in Table 1 below, determine:Table 1Duration (hours) 6 8 10Fraction of full load (%) 25 57 80Power factor 0.60 0.74 0.8211 12 13The Full load copper loss (4)The All-Day efficiency of this transformer (13)If the c
numerade.com
4 个月之前
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FacebookMritunjay Lectures
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[Hot Item] The de-energized three-phase linear series-parallel connection, star-delta exchange, with voltage-regulation combined tap-changers
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Y-Δ transform Examples
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