Homework Answers
we have to take star
connected system here...bcoz of the presence of both phase and line
voltage magnitude
Add Answer to:
A.) A local business wants to connect to the 208V three phase supply provided by the utility. The...
3. Three single-phase, 10 kVA, 460/120 V, 60 Hz transformers are connected to form a three-phase...
3. Three single-phase, 10 kVA, 460/120 V, 60 Hz transformers are connected to form a three-phase 460/208 V transformer bank. The equivalent impedance of each transformer referred to HV side is 1.0 + j2.0 Ω. The transformer delivers 25 kW at 0.9 pf lagging at rated voltage. Answer the following questions: (a) Draw a schematic diagram showing the transformer connection. Draw three separate single-phase transformers and complete their primary and secondary connections. (b) Determine the magnitude of transformer primary and...
three phase electric sircuits problem
In the circuit in the picture, the loads (L) of the lights (lamps) are balanced. Each lamp (L) is set at 500 W and 120 V. Constant resistance (i.e. lamps) only draws the specified current. The three-phase motor is at 5 ?? and 0.8 reverse power factor. The secondary side of the transformer (bottom of the network) provides voltage between 208 V balanced phases (ll-line line). The motor is 1500 meters from the side (length from the secondary side). The...
3. A 200 MVA, 20 kV, 60 Hz Y-connected solidly grounded three phase synchronous generator connect...
3. A 200 MVA, 20 kV, 60 Hz Y-connected solidly grounded three phase synchronous generator connected through a 200 MVA 20/138 KV Y-Y transformer to a 138 kV transmission line. The generator reactances to the machine's own base are X-1.10 Both of the transformers Y connections are solidly grounded and its positive, negative and zero sequence series resitances are all 0.10 pu. a. What is the voltage at the terminals of the generator during the sub transient period if a...
Power electronic Design a Switched Mode Power Supply (SMPS) by following pattern. Finally you should reach a DC outp...
Power electronic Design a Switched Mode Power Supply (SMPS) by following pattern. Finally you should reach a DC output voltage of 48 V and 20 Ampere. 1. initially start designing an uncontrolled single-phase rectifier supplied by 220 V., 50 Hz grid. A parallel capacitor is connected to the output. Draw its waveform and calculate the average value of the output voltage. Evaluate the input Power-Factor and Crest-Factor problems. (20) a. In order to avoid the input Power-Factor and Crest-Factor problems,...
EXPLAIN THESE QUESTIONS WITH THE HELP OF DIAGRAMS AND LABEL DIAGRAMS IN SUCH A WAY THAT...
EXPLAIN THESE QUESTIONS WITH THE HELP OF DIAGRAMS AND
LABEL DIAGRAMS IN SUCH A WAY THAT I CAN EASILY UNDERSTAND WHAT WE
ARE FINDING AND HOW WE ARE FINDING THE REQUIRED THINGS .I AM
POSTING MY QUESTION 4TH TIME PLEASE DONOT WASTE IT AND PLEASE DO
ALL STEPS I NEED MY ANSWER STEP BY STEP
by the line Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other 15 kW at 0.9 power factor...
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 +...
Problem 2: A pump station is fed by a 2000 A, 480 V three-phase electrical service....
Problem 2: A pump station is fed by a 2000 A, 480 V three-phase electrical service. The station runs two small motors, giving it a load profile of 350 kW with a 0.82 lagging PE. Determine the minimum allowed gauge of the service conductors. Feeder lines are aluminum, THW, contained within a raceway with an ambient temperature of 40 °C. State the specific article(s)/tables used to determine your answer. 13 55 The station is being expanded to include two new...
Question 4. (a) A full-wave bridge rectifier power supply is powered from the secondary of a...
Question 4. (a) A full-wave bridge rectifier power supply is powered from the secondary of a transformer which has a rms secondary voltage of 15.6V. The primary of the transformer is connected to a 50Hz, 230VRMS power supply. A 2700uF filter capacitor is used. A current of 1.5 Amp is drawn from the supply. (i) Sketch a schematic diagram of the setup. (ii) Calculate the mean de output voltage. Assume each power diode has a forward voltage drop of 1...
The three figures below show a balanced three phase Delta, its Wye equivalent and the single...
The three figures below show a balanced three phase Delta, its Wye equivalent and the single phase equivalent of the three phase Wye. All three representations have a complex load ZALD or ZYLD and a complex line impedance ZLINE Refer to these diagrams when answering questions 1-4. ZLINE Vab= 679 L 30° ZLINE ZALD ZLINE = 2+1 DELTA ZALD= 18+24j2 LINE ZLINE ZLINE ZYLD 7yun WYE WYE ZYLD ZLINE ZLINE Van Complex Load ZYLD Single Line WYE 1) In the...
answer the following multiple choice questions 5. The most common phase serving . residence would be...
answer the following multiple choice questions
5. The most common phase serving . residence would be single phase bwo or double phase three phase multiple phases none of the answers provided RV9,1110 11. A KVA code letter indicates the innush current per hp. size of the short circult protectors size of the overcurrent protectors size of the thermal overloads none of the answers provided 6. RPM is the approximate speed under full-Hoad conditions when voltage is at rated value when...
3. A 200 MVA, 20 kV, 60 Hz Y-connected solidly grounded three phase synchronous generator connected through a 200 MVA 20/138 KV Y-Y transformer to a 138 kV transmission line. The generator reactances to the machine's own base are X-1.10 Both of the transformers Y connections are solidly grounded and its positive, negative and zero sequence series resitances are all 0.10 pu. a. What is the voltage at the terminals of the generator during the sub transient period if a...
Power electronic Design a Switched Mode Power Supply (SMPS) by following pattern. Finally you should reach a DC output voltage of 48 V and 20 Ampere. 1. initially start designing an uncontrolled single-phase rectifier supplied by 220 V., 50 Hz grid. A parallel capacitor is connected to the output. Draw its waveform and calculate the average value of the output voltage. Evaluate the input Power-Factor and Crest-Factor problems. (20) a. In order to avoid the input Power-Factor and Crest-Factor problems,...
EXPLAIN THESE QUESTIONS WITH THE HELP OF DIAGRAMS AND
LABEL DIAGRAMS IN SUCH A WAY THAT I CAN EASILY UNDERSTAND WHAT WE
ARE FINDING AND HOW WE ARE FINDING THE REQUIRED THINGS .I AM
POSTING MY QUESTION 4TH TIME PLEASE DONOT WASTE IT AND PLEASE DO
ALL STEPS I NEED MY ANSWER STEP BY STEP
by the line Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other 15 kW at 0.9 power factor...
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 +...
Problem 2: A pump station is fed by a 2000 A, 480 V three-phase electrical service. The station runs two small motors, giving it a load profile of 350 kW with a 0.82 lagging PE. Determine the minimum allowed gauge of the service conductors. Feeder lines are aluminum, THW, contained within a raceway with an ambient temperature of 40 °C. State the specific article(s)/tables used to determine your answer. 13 55 The station is being expanded to include two new...
Question 4. (a) A full-wave bridge rectifier power supply is powered from the secondary of a transformer which has a rms secondary voltage of 15.6V. The primary of the transformer is connected to a 50Hz, 230VRMS power supply. A 2700uF filter capacitor is used. A current of 1.5 Amp is drawn from the supply. (i) Sketch a schematic diagram of the setup. (ii) Calculate the mean de output voltage. Assume each power diode has a forward voltage drop of 1...
The three figures below show a balanced three phase Delta, its Wye equivalent and the single phase equivalent of the three phase Wye. All three representations have a complex load ZALD or ZYLD and a complex line impedance ZLINE Refer to these diagrams when answering questions 1-4. ZLINE Vab= 679 L 30° ZLINE ZALD ZLINE = 2+1 DELTA ZALD= 18+24j2 LINE ZLINE ZLINE ZYLD 7yun WYE WYE ZYLD ZLINE ZLINE Van Complex Load ZYLD Single Line WYE 1) In the...
answer the following multiple choice questions
5. The most common phase serving . residence would be single phase bwo or double phase three phase multiple phases none of the answers provided RV9,1110 11. A KVA code letter indicates the innush current per hp. size of the short circult protectors size of the overcurrent protectors size of the thermal overloads none of the answers provided 6. RPM is the approximate speed under full-Hoad conditions when voltage is at rated value when...
Most questions answered within 3 hours.
-
What is the distance run by a runner 50m/hr and
60m/hr?
asked 36 minutes ago -
A soft drink machine outputs a mean of 25 ounces per cup. The
machine's output is...
asked 5 minutes ago -
Write a descendant selector rule that affects the <em>
element that is contained within the
<p>...
asked 44 minutes ago -
The management of an electrical manufacturing plant determined
that the mean life of their 10 watt...
asked 46 minutes ago -
On January 1, Year 1, Prairie Enterprises purchased a parcel of
land for $13,100 cash. At...
asked 1 hour ago -
Question 4: (3 marks)
On a recent PE-sponsored adventure education program, students
went hiking at Devil's...
asked 1 hour ago -
Programming in C#
Create a Money class that has as data members dollars and cents.
Include...
asked 1 hour ago -
A research associate working for Intragene Therapeutics prepares
an investigative PCR reaction to screen human tissue...
asked 1 hour ago -
Calculate the mass of sodium benzoate, NaC6H5COO, that must be
added to 500.0mL of 0.100 M...
asked 1 hour ago -
Four transactions are presently running: (The abbreviation R(A)
means Read(A), and so on)
• T1: R(A),R(B),R(J),W(A),W(B),R(D),R(E),R(G)...
asked 1 hour ago -
A study regarding the relationship between age and the amount of
pressure sales personnel feel in...
asked 2 hours ago -
A 2014 Pew study found that the average US Facebook user has 338
friends. The study...
asked 2 hours ago