Calculate the apparent power in kVA for a 200 amp, 120/208 volt, 3-phase service. Select one:...
Calculate the apparent power in kVA for a 200 amp, 120/208 volt, 3-phase service.
Select one:
a. 769 kVA
b. 72 kVA
c. 576 kVA
d. 432 kVA
Homework Answers
In three phase service for line to line voltage , apparent power is given by
S(kVA) = √3 × I(A) × VL-L(V) / 1000
= √3 × 200 × 208 / 1000 = 72.053 kVA
And for line to nutral voltage , apparent power is given by
S(kVA) = 3 × I(A) × VL-N(V) / 1000
= 3 × 200 × 120 / 1000 = 72 kVA
So , the answer is 72 kVA
Add Answer to:
Calculate the apparent power in kVA for a 200 amp, 120/208 volt,
3-phase service.
Select one:...
Question 6 Not yet answered p Flag question Calculate the apparent power in kVA for a...
Question 6 Not yet answered p Flag question Calculate the apparent power in kVA for a 200 amp, 120/208 volt, 3-phase service. Points out of 2.00 Select one: a. 432 kVA O b. 576 kVA O c. 769 kVA O d.72 kVA
PROBLEM 5.7 A 200 KVA, 2300 Volt, 3 phase alternator, star connection. Calculate the no-load voltage...
PROBLEM 5.7 A 200 KVA, 2300 Volt, 3 phase alternator, star connection. Calculate the no-load voltage the alternator must have when: A) The regulation percentage is 10.5. B) The regulation percentage is 26.3. C) The regulation percentage is -13.2.
Scenario 220.53 The secondary of a 300 KVA transformer delivers power to a 180- amp, 30...
Scenario 220.53 The secondary of a 300 KVA transformer delivers power to a 180- amp, 30 load. This is a 480 – 240 volt A-A transformer. Primary and secondary conductors are the minimum size required to serve the load. Refer to Scenario 220.53. The secondary OCPD can have a rating no greater than __amps. Select one: O a. 100 O b. 200 O c. 150 d. none of these e. 175
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...
A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which...
A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: a) primary voltage. b) load impedance. c) load impedance referred to the primary. d) the real and reactive power supplied to the primary winding
3.4 A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load,...
3.4 A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary wind- ing, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: (a) primary voltage, (b) load impedance, (c) load impedance referred to the primary, and (d) the real and reactive power sup- plied to the primary winding.
Consider the following single phase circuit (one-line diagram): a) Calculate and draw the equival...
Consider the following single phase circuit (one-line diagram): a) Calculate and draw the equivalent per unit circuit b) What is the voltage at the load (actual)? :208 208: 1 Load Ziad 0.082 130.082 Ω c) Calculate the apparent power, active power, reactive power (actual values) at the load d) What is the power factor at the load?
Consider the following single phase circuit (one-line diagram): a) Calculate and draw the equivalent per unit circuit b) What is the voltage at...
A building has a single-phase, 277V service rated at 800A. The power factor is 0.95. Find...
A building has a single-phase, 277V service rated at 800A. The power factor is 0.95. Find the working power of this system. Select one: O a. 211 kVA O b. 211 kW OC. 384 kVA O d. 365 kW
3.10 A 240/120 V, 4.8 kVA, 60 Hz, single-phase transformer is used to supply a 4.8...
3.10 A 240/120 V, 4.8 kVA, 60 Hz, single-phase transformer is used to supply a 4.8 kVA resistive load (i.e., the load has a power factor of 1.0) at rated voltage of 120 V a) If you assume the transformer is ideal, what would be the magni- tude of the expected primary side (240 V side) current? b) Again, if you assume the transformer is ideal, what is the apparent impedance of the load viewed from the high-voltage side of...
7. on. Suppose an engineer designs a 120/240 Volt single phase power system for a restaurant...
7. on. Suppose an engineer designs a 120/240 Volt single phase power system for a restaurant including the indoor wiring circuits. He had some conversations with the restaurant owner prior to completing his final design but the owner was not very organized so only shared the other kitchen equipment technical specs by telephone. The restaurant hired an electrician to install the kitchen equipment and inside wiring. However, when the owner met with the electrician he found the kitchen oven to...
Question 6 Not yet answered p Flag question Calculate the apparent power in kVA for a 200 amp, 120/208 volt, 3-phase service. Points out of 2.00 Select one: a. 432 kVA O b. 576 kVA O c. 769 kVA O d.72 kVA
Scenario 220.53 The secondary of a 300 KVA transformer delivers power to a 180- amp, 30 load. This is a 480 – 240 volt A-A transformer. Primary and secondary conductors are the minimum size required to serve the load. Refer to Scenario 220.53. The secondary OCPD can have a rating no greater than __amps. Select one: O a. 100 O b. 200 O c. 150 d. none of these e. 175
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...
A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: a) primary voltage. b) load impedance. c) load impedance referred to the primary. d) the real and reactive power supplied to the primary winding
Consider the following single phase circuit (one-line diagram): a) Calculate and draw the equivalent per unit circuit b) What is the voltage at the load (actual)? :208 208: 1 Load Ziad 0.082 130.082 Ω c) Calculate the apparent power, active power, reactive power (actual values) at the load d) What is the power factor at the load?
Consider the following single phase circuit (one-line diagram): a) Calculate and draw the equivalent per unit circuit b) What is the voltage at...
A building has a single-phase, 277V service rated at 800A. The power factor is 0.95. Find the working power of this system. Select one: O a. 211 kVA O b. 211 kW OC. 384 kVA O d. 365 kW
3.10 A 240/120 V, 4.8 kVA, 60 Hz, single-phase transformer is used to supply a 4.8 kVA resistive load (i.e., the load has a power factor of 1.0) at rated voltage of 120 V a) If you assume the transformer is ideal, what would be the magni- tude of the expected primary side (240 V side) current? b) Again, if you assume the transformer is ideal, what is the apparent impedance of the load viewed from the high-voltage side of...
7. on. Suppose an engineer designs a 120/240 Volt single phase power system for a restaurant including the indoor wiring circuits. He had some conversations with the restaurant owner prior to completing his final design but the owner was not very organized so only shared the other kitchen equipment technical specs by telephone. The restaurant hired an electrician to install the kitchen equipment and inside wiring. However, when the owner met with the electrician he found the kitchen oven to...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago