A balanced three-phase load is connected to a 4.16 -kV , three-phase, fourwire, grounded-wye dedicated distribution feeder. The load can be mode led by an impedance of Z L = ( 4.7 + j 9 ) Ω / phase , wye-connected. The impedance of the phase conductors is ( 0.3 + j 1 ) Ω . Determine the following by using the phase A to neutral voltage as a reference and assume positive phase sequence: (a) Line currents for phases A, B, and C. (b) Line-to-neutral voltages for all three phases at the load. (c) Apparent. active, and reactive power dissipated per phase, and for all three phases in the load. (d) Active power losses per phase and for all three phases in the phase conductors.
A balanced three-phase load is connected to a 4.16 -kV , three-phase, fourwire, grounded-wye dedicated distribution feeder. The load can be mode led by an impedance of Z L = ( 4.7 + j 9 ) Ω / phase , wye-connected. The impedance of the phase conductors is ( 0.3 + j 1 ) Ω . Determine the following by using the phase A to neutral voltage as a reference and assume positive phase sequence: (a) Line currents for phases A, B, and C. (b) Line-to-neutral voltages for all three phases at the load. (c) Apparent. active, and reactive power dissipated per phase, and for all three phases in the load. (d) Active power losses per phase and for all three phases in the phase conductors.
Solution Summary: The author describes the line currents for phases A, B and C.
A balanced three-phase load is connected to a
4.16
-kV
, three-phase, fourwire, grounded-wye dedicated distribution feeder. The load can be mode led by an impedance of
Z
L
=
(
4.7
+
j
9
)
Ω
/
phase
, wye-connected. The impedance of the phase conductors is
(
0.3
+
j
1
)
Ω
. Determine the following by using the phase A to neutral voltage as a reference and assume positive phase sequence:
(a) Line currents for phases A, B, and C.
(b) Line-to-neutral voltages for all three phases at the load.
(c) Apparent. active, and reactive power dissipated per phase, and for all three phases in the load.
(d) Active power losses per phase and for all three phases in the phase conductors.
ACS712
PV
Nov
ID
Voltage
RD
R1 sensing
VDS
R2
MOSFET S
VGS
Gate PWM
driver
Oscilloscope
Vpv, Ip
AO
Arduino
A1
Serial interface
01
Computer
Fig. 4. The proposed electronics load to measure PV characteristics.
explain the circuit and the curve
explain the circuit
Chapter 2 Solutions
Power System Analysis and Design (MindTap Course List)
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