please the power factors given in the question are different which are 0.8 and 0.85 please explain to me which one would be used in the calculations and why is it used? please I want a typed copy of it.
Homework Answers
It is just a printing mistake that you are asking to justify. The only way out is that you need to solve the question by thanking both the power factor value one at a time and just match the answer if the answer is right then that particular power factor is the one that should be given and the other one is the miss printined one or the vice versa . So basically what I want to say is that in such case u need to take the answer as a reference. Also what I feel is that the mistake might be in circuit diagram so you should first try to solve by taking the power factor 0.8 first and then try with 0.85. Hope you got satisfying answer for any query please do comment.
Add Answer to:
please the power factors given in the question are
different which are 0.8 and 0.85 please...
4. Figure shows a power source that feeds a 100 kVA 14/2.4 kV transformer through a...
4. Figure shows a power source that feeds a 100 kVA 14/2.4 kV transformer through a feeder with impedance of 100/60° Ω Load 90 kw 0.85 PF lagging Feeder transmission line) Source Transformer Load The transformer has been tested to determine its equivalent circuit. The results of the tests are: Open-circuit test Voc = 14 kV oc 0.1 A Рос-800 w Short-circuit test Vsc 800 V Isc = 7A Psc 2 kW The load on the transformer is 90 kW...
last two digits of student number are 10 Q.3 A single-phase power system is shown in...
last two digits of student
number are 10
Q.3 A single-phase power system is shown in Figure. The power source feeds a load through a transmission line and a IXY (kVA), 20kV/3.8kV transformer. The transformer's series impedance is shown as referred to the LV side. The source voltage is v:(t) = 2Xsin(3141) kV, which delivers 120 kVA at 0.95 power factor lagging to the system. Determine, a. actual voltage drop in the transmission line, (5 marks) b. actual voltage drop...
I have few questions as shown in photo (red colour). But can you answer whole question?...
I have few questions as shown in photo (red colour).
But can you answer whole question?
A 100-kVA, 2300/460-V, 50-Hz, Y/A-connected, three-phase transformer has the equivalent impedance of (0.045+j0.16) /phase referred to its low-voltage side. The transformer is connected to a three-phase source through three-phase feeders. The impedance of each feeder is (0.5+j1.5) 2. The transformer delivers full load at 460 V and 0.85 lagging power factor. (a) Draw the one phase Y-Y equivalent circuit of the system. (b) Determine...
QUESTION 3 A 200 - MVA, 15/200 kV single-phase power transformer has a per – unit...
QUESTION 3 A 200 - MVA, 15/200 kV single-phase power transformer has a per – unit resistance of 1.2 percent and a per-unit reactance of 5 percent (data taken from the transformer's nameplate). The magnetizing impedance is impedance is j80 per unit. a. Find the equivalent circuit referred to the low-voltage side of this transformer. b. Calculate the voltage regulation of this transformer for a full-load current at power factor of 0.8 lagging. c. Assume that the primary voltage of...
Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of thr...
please solve the question in pu sysyem !!!!
Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of three identical 100-kVA 967/480-V transformers. I is supplied with power directly from a large constant-voltage bus. In the short-circuit test, the recorded values on the high-voltage side for one of these transformers are Isc 12.6 A Pc3300 w (a) If this bank delivers a rated load at 0.85 PF lagging and rated voltage, what is the line-to-line voltage on...
solve no: 3.14 , 3.16, 3.19 please show each step and solve for beginners 120 Power...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
Please show detailed steps. Thanks Problem # 1: Three Phase Power [35 points] A three-phase substation...
Please show detailed steps. Thanks
Problem # 1: Three Phase Power [35 points] A three-phase substation bus supplies three wye-connected three phase loads that are connected in parallel through a three-phase feeder with an impedance of 0.3 30 per phase Load 1 draws 75kVA at 0.866 lagging power factor, load 2 draws 45 kW at 0.70 leading power factor and load 3 draws 20 kVAR at 0.85 lagging power factor. The line-line voltage at the load is 460V Take the...
[29] SECTION B: TRANSFORMERS QUESTION 2 2.1 A 240:48-volt, 50-F power factor of 0.8 lagging. If...
[29] SECTION B: TRANSFORMERS QUESTION 2 2.1 A 240:48-volt, 50-F power factor of 0.8 lagging. If the no load current and iron loss of this e transformer supplies a load of 10 ampere at a ampere and 12-watt respectively, calculate the total current supplied and the powe oad current and iron loss of this transformer are factor. (7) KVA, 50-Hz, 1200:230-volt single phase transformer has the following series impedance values: Z1 = (0.047 +0.112) Z2 = (0.00172 +0.00411)2 Calculate: 2.2.1...
10. Two loads connected in parallel draw a total of 2.4 kW at 0.8 pflagging from...
10. Two loads connected in parallel draw a total of 2.4 kW at 0.8 pflagging from a 120-V rms, 60- Hz line. One load absorbs 1.5 kW at a 0.707 pf lagging. Determine: (a) the pf of the second load, INV 11. Calculate the line currents for the system shown in figure. Calculate also the total power and reactive power consumed by the load. w 12. For the balanced three-phase circuit in Fig.. Calculate the line currents, the phase voltage...
A distribution board distributes energy to various items of plant via an installation which has a...
Step by step precise and concise full solution please
A distribution board distributes energy to various items of plant via an installation which has a high voltage (H.V.) panel, a low voltage (L.V) panel and a transformer. The details are as follows: The H.V. panel obtains a 3-phase supply at 11 kV. The transformer circuit-breaker is equipped with 75/5A current transformers which feed a very inverse 3-poles overcurrent relay of 5-A rating. The transformer has a rating of 1000 kVA...
4. Figure shows a power source that feeds a 100 kVA 14/2.4 kV transformer through a feeder with impedance of 100/60° Ω Load 90 kw 0.85 PF lagging Feeder transmission line) Source Transformer Load The transformer has been tested to determine its equivalent circuit. The results of the tests are: Open-circuit test Voc = 14 kV oc 0.1 A Рос-800 w Short-circuit test Vsc 800 V Isc = 7A Psc 2 kW The load on the transformer is 90 kW...
last two digits of student
number are 10
Q.3 A single-phase power system is shown in Figure. The power source feeds a load through a transmission line and a IXY (kVA), 20kV/3.8kV transformer. The transformer's series impedance is shown as referred to the LV side. The source voltage is v:(t) = 2Xsin(3141) kV, which delivers 120 kVA at 0.95 power factor lagging to the system. Determine, a. actual voltage drop in the transmission line, (5 marks) b. actual voltage drop...
I have few questions as shown in photo (red colour).
But can you answer whole question?
A 100-kVA, 2300/460-V, 50-Hz, Y/A-connected, three-phase transformer has the equivalent impedance of (0.045+j0.16) /phase referred to its low-voltage side. The transformer is connected to a three-phase source through three-phase feeders. The impedance of each feeder is (0.5+j1.5) 2. The transformer delivers full load at 460 V and 0.85 lagging power factor. (a) Draw the one phase Y-Y equivalent circuit of the system. (b) Determine...
QUESTION 3 A 200 - MVA, 15/200 kV single-phase power transformer has a per – unit resistance of 1.2 percent and a per-unit reactance of 5 percent (data taken from the transformer's nameplate). The magnetizing impedance is impedance is j80 per unit. a. Find the equivalent circuit referred to the low-voltage side of this transformer. b. Calculate the voltage regulation of this transformer for a full-load current at power factor of 0.8 lagging. c. Assume that the primary voltage of...
please solve the question in pu sysyem !!!!
Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of three identical 100-kVA 967/480-V transformers. I is supplied with power directly from a large constant-voltage bus. In the short-circuit test, the recorded values on the high-voltage side for one of these transformers are Isc 12.6 A Pc3300 w (a) If this bank delivers a rated load at 0.85 PF lagging and rated voltage, what is the line-to-line voltage on...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
Please show detailed steps. Thanks
Problem # 1: Three Phase Power [35 points] A three-phase substation bus supplies three wye-connected three phase loads that are connected in parallel through a three-phase feeder with an impedance of 0.3 30 per phase Load 1 draws 75kVA at 0.866 lagging power factor, load 2 draws 45 kW at 0.70 leading power factor and load 3 draws 20 kVAR at 0.85 lagging power factor. The line-line voltage at the load is 460V Take the...
[29] SECTION B: TRANSFORMERS QUESTION 2 2.1 A 240:48-volt, 50-F power factor of 0.8 lagging. If the no load current and iron loss of this e transformer supplies a load of 10 ampere at a ampere and 12-watt respectively, calculate the total current supplied and the powe oad current and iron loss of this transformer are factor. (7) KVA, 50-Hz, 1200:230-volt single phase transformer has the following series impedance values: Z1 = (0.047 +0.112) Z2 = (0.00172 +0.00411)2 Calculate: 2.2.1...
10. Two loads connected in parallel draw a total of 2.4 kW at 0.8 pflagging from a 120-V rms, 60- Hz line. One load absorbs 1.5 kW at a 0.707 pf lagging. Determine: (a) the pf of the second load, INV 11. Calculate the line currents for the system shown in figure. Calculate also the total power and reactive power consumed by the load. w 12. For the balanced three-phase circuit in Fig.. Calculate the line currents, the phase voltage...
Step by step precise and concise full solution please
A distribution board distributes energy to various items of plant via an installation which has a high voltage (H.V.) panel, a low voltage (L.V) panel and a transformer. The details are as follows: The H.V. panel obtains a 3-phase supply at 11 kV. The transformer circuit-breaker is equipped with 75/5A current transformers which feed a very inverse 3-poles overcurrent relay of 5-A rating. The transformer has a rating of 1000 kVA...
Most questions answered within 3 hours.
-
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 1 hour ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 1 hour ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 3 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 3 hours ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 3 hours ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 3 hours ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 4 hours ago -
What is an example of a limitation in implementing a new
ERP system and how it...
asked 4 hours ago -
In a section of 9.7cm of an artery with a radius of 2.6mm there
is a...
asked 4 hours ago -
the two carboxylic acid groups of aspartic acid have different
acidities with pKa values of 2.1...
asked 4 hours ago -
Would CuCO3 aqueous salt combined with calcium chloride
form a solid precipitate? If so, what would...
asked 4 hours ago -
How do ECM Solutions assist in embedding a culture of continuous
improvement in an organization? (Project...
asked 4 hours ago