Consider a Delta generator supplying Wye load. The generator has the following data: Line to line...
Consider a Delta generator supplying Wye load. The generator has the following data:
- Line to line voltage of 11kV
- Rated power of 55 MVA
- Power factor capability of 0.7 lagging
The load the following rated data
- Line to line voltage of 11kV
- Rated power of 40 MVA
- Lagging power factor of 0.8
For the above system:
Design the Current Transformer system using the load data
Homework Answers
Add Answer to:
Consider a Delta generator supplying Wye load. The generator has
the following data:
Line to line...
Could you please help solve this question. The following generator supplying rated load into a large...
Could you please help solve this question.
The following generator supplying rated load into a large grid at rated voltage (11kV) and 0.85 PF lagging Generator: 20 MVA, X = j15%. Voltage 11kV i) Determine the internal generator voltage. ii) The load suddenly drops to 50% rated power. If the rotating energy of the generator and its associated turbine is 2.0 p.u-seconds when running at its synchronous speed. It has 2 poles and system frequency is 50 Hz. Determine: (ii-a)...
Problem 4 Three ideal single-phase transformers are connected in a delta/wye configuration with the primary side of the...
Problem 4 Three ideal single-phase transformers are connected in a delta/wye configuration with the primary side of the three-phase transformer rated at 120 kV and the secondary side rated at 13.8 kV. The rated power of the transformer bank is 20 MVA. One side of the transformer bank is connected to a 120 kV transmission line, and the other side is connected to a three-phase load of 15 MVA at 0.85 lagging power factor. Compute the following: a) The turns...
A three-phase, delta-connected, two-pole, synchronous generator is connected to a 60 Hz, 13.5 kV (line-to-line), system....
A three-phase, delta-connected, two-pole, synchronous generator is connected to a 60 Hz, 13.5 kV (line-to-line), system. The generator is delivering its rated output power, under which conditions pfload = 0.8 lagging and |SI = 20 MVA. The generator per-phase model parameters at rated load are. RA = 0.5 2 Xss = 522 9. What is the generator's line-to-line voltage regulation? Is the voltage regulation positive or negative? 10. If the field current is held at the rated load value, but...
Problem 1: A three-phase transformer has the following name plate data: Rated Power Primary voltage Secondary...
Problem 1: A three-phase transformer has the following name plate data: Rated Power Primary voltage Secondary Voltage Excitation reactance Series Impedance 150 MVA 230 kV 32 kV 30 (pu) 0.02+0.15j (pu) The transformer is Y/A connected. Answer the following questions: a) What are the nominal (rated) primary and secondary line currents?| b) What is the nominal value of the Delta-side winding (internal) current? c) What is the secondary to primary winding turn ratio? d) The transformer is supplying 150 MVA...
Question 2: Three phase circuit. (100p) A wye connected generator supplies a delta connected balanced load...
Question 2: Three phase circuit. (100p) A wye connected generator supplies a delta connected balanced load through short feeder. seree the load line to neutral voltage as reference voltage phase angle zero. 02.1 Q2.2 Q2.3 Q2.4 Draw the equivalent circuit. 10p Calculate the load line-to-neutral voltages and line-to-line voltages. 20p Calculate the delta load currents and feeder currents. 20p Calculate the supply wye connected generator line-to-neutral voltages. Is the obtained values are acceptable? Calculate the generator real and reactive power...
Section 2: Three phase circuit Three phase wye connected generator supplies two parallel loads through a...
Section 2: Three phase circuit Three phase wye connected generator supplies two parallel loads through a feeder. Load 1 Is an unbalanced wye connected load and load 2 is a balanced delta connected load. System data: Generator: Sg = 600 MVA; vg-11-25KV; Xg = 11896; Feeder: Z (0.08+j0.62) Ω/mile, length-8 miles Load 1: VII = 24KV, Pa =75MW Pb 75MW Pc=75MW pf_a=0.8 pf b 0.84 pf_c=0.78 Load 2: VIl-24KV; P total-225MW, pf 0.8; (all the power factor is supposed to...
A 150 KVA, 2080/208-V, 3 PHASE, delta-wye transformer with the following: RH 450m2 R 4.5m XH 2.20...
A 150 KVA, 2080/208-V, 3 PHASE, delta-wye transformer with the following: RH 450m2 R 4.5m XH 2.20 Load 120 KVA, 90KW (lagging power factor) at rated terminal voltage of 208V Determine a) b) c) The approximate equivalent circuit referred to the low-voltage side The primary voltage The transformer efficiency Please show the following: Circuit with the values given & found Equations used
A 150 KVA, 2080/208-V, 3 PHASE, delta-wye transformer with the following: RH 450m2 R 4.5m XH 2.20 Load...
UISIZULU Problem 4 A three phase, 5 kW, wye-connected load operate onnected load operates at 0.8...
UISIZULU Problem 4 A three phase, 5 kW, wye-connected load operate onnected load operates at 0.8 power factor lagging with a terminal voltage of 100 V (line to line). The cables connecting e bles connecting each phase of the load to the wye-connected supply has an impedance of (0.25 +0.25) 12. Compute the following: a) Reactive power drawn by the load. b) Real and reactive power losses in the system. me current and line voltage at the source terminals and...
What is the magnitude of the primary line current of a 14,000 – 480Y/277 V, delta-wye,...
What is the magnitude of the primary line current of a 14,000 – 480Y/277 V, delta-wye, three- phase distribution transformer if a 200kW, 0.88 P.F. lagging load is connected to the secondary. (assume that the transformer is lossless and that the primary is the high-voltage side)
Three single phase step-up transformers rated at 40 MVA, 13.2 kV/80 kV are connected in delta-wye on a 13.2 kV transmission line
a. Three single phase step-up transformers rated at 40 MVA, 13.2 kV/80 kV are connected in delta-wye on a 13.2 kV transmission line. If they feed a 90 MVA load calculate the following: i. The secondary line voltage ii. The current in the transformer windings iii. The incoming line currents iv. If the transformer types are two (2) additive and one (1) subtractive draw the connection diagram for the configuration stated using physical representation. b. A 3-phase squirrel cage motor has twelve (12) leads (labelled 1 to...
Could you please help solve this question.
The following generator supplying rated load into a large grid at rated voltage (11kV) and 0.85 PF lagging Generator: 20 MVA, X = j15%. Voltage 11kV i) Determine the internal generator voltage. ii) The load suddenly drops to 50% rated power. If the rotating energy of the generator and its associated turbine is 2.0 p.u-seconds when running at its synchronous speed. It has 2 poles and system frequency is 50 Hz. Determine: (ii-a)...
Problem 4 Three ideal single-phase transformers are connected in a delta/wye configuration with the primary side of the three-phase transformer rated at 120 kV and the secondary side rated at 13.8 kV. The rated power of the transformer bank is 20 MVA. One side of the transformer bank is connected to a 120 kV transmission line, and the other side is connected to a three-phase load of 15 MVA at 0.85 lagging power factor. Compute the following: a) The turns...
A three-phase, delta-connected, two-pole, synchronous generator is connected to a 60 Hz, 13.5 kV (line-to-line), system. The generator is delivering its rated output power, under which conditions pfload = 0.8 lagging and |SI = 20 MVA. The generator per-phase model parameters at rated load are. RA = 0.5 2 Xss = 522 9. What is the generator's line-to-line voltage regulation? Is the voltage regulation positive or negative? 10. If the field current is held at the rated load value, but...
Problem 1: A three-phase transformer has the following name plate data: Rated Power Primary voltage Secondary Voltage Excitation reactance Series Impedance 150 MVA 230 kV 32 kV 30 (pu) 0.02+0.15j (pu) The transformer is Y/A connected. Answer the following questions: a) What are the nominal (rated) primary and secondary line currents?| b) What is the nominal value of the Delta-side winding (internal) current? c) What is the secondary to primary winding turn ratio? d) The transformer is supplying 150 MVA...
Question 2: Three phase circuit. (100p) A wye connected generator supplies a delta connected balanced load through short feeder. seree the load line to neutral voltage as reference voltage phase angle zero. 02.1 Q2.2 Q2.3 Q2.4 Draw the equivalent circuit. 10p Calculate the load line-to-neutral voltages and line-to-line voltages. 20p Calculate the delta load currents and feeder currents. 20p Calculate the supply wye connected generator line-to-neutral voltages. Is the obtained values are acceptable? Calculate the generator real and reactive power...
Section 2: Three phase circuit Three phase wye connected generator supplies two parallel loads through a feeder. Load 1 Is an unbalanced wye connected load and load 2 is a balanced delta connected load. System data: Generator: Sg = 600 MVA; vg-11-25KV; Xg = 11896; Feeder: Z (0.08+j0.62) Ω/mile, length-8 miles Load 1: VII = 24KV, Pa =75MW Pb 75MW Pc=75MW pf_a=0.8 pf b 0.84 pf_c=0.78 Load 2: VIl-24KV; P total-225MW, pf 0.8; (all the power factor is supposed to...
A 150 KVA, 2080/208-V, 3 PHASE, delta-wye transformer with the following: RH 450m2 R 4.5m XH 2.20 Load 120 KVA, 90KW (lagging power factor) at rated terminal voltage of 208V Determine a) b) c) The approximate equivalent circuit referred to the low-voltage side The primary voltage The transformer efficiency Please show the following: Circuit with the values given & found Equations used
A 150 KVA, 2080/208-V, 3 PHASE, delta-wye transformer with the following: RH 450m2 R 4.5m XH 2.20 Load...
UISIZULU Problem 4 A three phase, 5 kW, wye-connected load operate onnected load operates at 0.8 power factor lagging with a terminal voltage of 100 V (line to line). The cables connecting e bles connecting each phase of the load to the wye-connected supply has an impedance of (0.25 +0.25) 12. Compute the following: a) Reactive power drawn by the load. b) Real and reactive power losses in the system. me current and line voltage at the source terminals and...
Most questions answered within 3 hours.
-
You are one of the first engineers hired into the
manufacturing engineering department at a brand...
asked 1 minute ago -
Suppose car models A, B, and C are popular among drivers.
Suppose 12% of the drivers...
asked 18 minutes ago -
write a program that finds the number of zeros in an 8-bit data
item using assembly...
asked 19 minutes ago -
Which statement is always true: The total energy of a closed
system...
A) is always equally...
asked 32 minutes ago -
find the critical value associated with a right sided hypothesis of
the mean using a sample...
asked 2 hours ago -
Which of the following statements is true with respect to a
simple linear regression model?
a....
asked 3 hours ago -
The energy required to remove an electron from a surface of a
solid element is called...
asked 4 hours ago -
How would you train your employees to avoid risks of using
mobile devices?
asked 5 hours ago -
Assume Kw = 1.01 ✕ 10−14
For pure water, we can calculate [H3O+ ] = [OH...
asked 5 hours ago -
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 6 hours ago -
BaS crystallizes in a cubic unit cell with S2- ions on each
corner and each face....
asked 7 hours ago -
A. 0≤P(Oi)≤10≤P(Oi)≤1 for each i
B. P(Oi)≤0P(Oi)≤0
C. P(Oi)=1+P(OCi)P(Oi)=1+P(OiC)
D. P(Oi)≥1P(Oi)≥1
If an experiment consists of...
asked 8 hours ago