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.
Why is a starting resistor needed to bring a
motor up to speed?
Show one way to reverse the direction of ro-
tation of a compound motor.
8- is flip-flop which indicates some condition which arises after the execution of an
arithmetic or logic instruction.
a) Status flag
b) Instruction registers
c) Temporary register
d) None of these
9- El instruction is a_
a) Branching Instructions
b) Logical Instructions
c) Control Instructions
d) Data Transfer Instruction
e) Arithmetic Instructions
1. Write a program to add 4 hex numbers located in the memory
locations 2001h, 2002h, 2003h, 2004h and store the result at location 2005h
Chapter 2 Solutions
MindTap Engineering for Glover/Overbye/Sarma's Power System Analysis and Design, 6th Edition, [Instant Access], 1 term (6 months)
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