in figure 10.38 which is a simple single phase transformer with primary terminals h1 and h2...
in figure 10.38 which is a simple single phase transformer with primary terminals h1 and h2 and secondary terminals x1 and x2. when 900 volts is applied to the primary and 100 volts is measured across the secondary. a. what is the voltage between terminals h1 and x1? b. if terminals h1 and x1 are connected together, what is the voltage across terminals h2 and x2? c. does the transformer have additive or subtractive polartity ?
Homework Answers
Add Answer to:
in figure 10.38 which is a simple single phase transformer with
primary terminals h1 and h2...
A single-phase transformer is rated at 10 kVA, 240/100 V. When the secondary terminals are open-circuited...
A single-phase transformer is rated at 10 kVA, 240/100 V. When the secondary terminals are open-circuited and the primary winding is supplied at normal voltage, the input current is 2.6 A at a power factor of 0.3 lag. When the secondary terminals are short-circuited, a voltage of 18 V applied to the primary causes the full-load current to flow in the secondary, the power input to the primary being 240 W. Calculate (a) the regulation (b) the efficiency of the...
The primary coil of a transformer contains 50 turns.. The primary coil is connected to an...
The primary coil of a transformer contains 50 turns.. The primary coil is connected to an alternative voltage of 5.0 volts. The voltage across the secondary coil is measured 0.5 volts? How may turns does the secondary contain? If the primary current is 2.0 mA (mili-amperes,) what is the secondary current? 1 mA = 10-3 A
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
A three-phase Yy0 connected transformer has a nominal rating of 250 kVA and a voltage ratio...
A three-phase Yy0 connected transformer has a nominal rating of 250 kVA and a voltage ratio 15:0.4 kV. After conducting the short-circuit test, where the secondary winding is short-circuited, it is found that the primary series resistance is 0.08 pu and the primary series impedance magnitude is 0.1pu. The effect of the parallel branch in the transformer’s equivalent circuit may be neglected. Explain what information ‘Yy0’ gives about the transformer. Draw the per-phase equivalent circuit of the transformer during the...
An ideal transformer with 5 turns on the primary and 10 turns on the secondary is...
An ideal transformer with 5 turns on the primary and 10 turns on the secondary is shown in the figure. A sinusoidal voltage source having V(t) = 10 sin(100t) volts is connected across the primary and a 1 Ω resistor is connected across the secondary. What is the maximum value of the current in the primary circuit (not the secondary)? (answer is 40 amps)
1. If 480 volts is applied to the primary winding of a transformer which has 300...
1. If 480 volts is applied to the primary winding of a transformer which has 300 turns in the primary winding and 15 turns in the secondary winding, the secondary voltage will be A. 0.0417 volts. C. 56.8 volts B. 24 volts. D. 9600 volts. 2. A distribution transformer with a grain-orientented steel core is highly efficent because its A. exciting current is sufficiently high. B. flux direction is parallel to the stell-rolling direction C. permeability is increased due to...
1. (10 PT) A three-phase bridge rectifier circuit shown in the figure phase voltage of 220 volts rms. A load of 100 Ω is connected across is supplied by a rectifier. Both the primary and secondary...
1. (10 PT) A three-phase bridge rectifier circuit shown in the figure phase voltage of 220 volts rms. A load of 100 Ω is connected across is supplied by a rectifier. Both the primary and secondary windings of transfor Assume the transformer has a turns ratio of unity mer are Y-connected a) 3 PTI On the top of voltage plot on next page indicate the diodes that will be conducting during different intervals of time. b) 17 PT] Plot the...
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.
a single phase transformer is rated for 0.5kVa, a primary voltage of 480V, and a secondary...
a single phase transformer is rated for 0.5kVa, a primary voltage of 480V, and a secondary voltage of 120V. what is the maximum full load that can be supplied by the secondary?
1kVA ideal single phase step-up transformer
Q1 A 1kVA ideal single phase step-up transformer is supplied by a 24 V ac power source and is delivering power to a 10 Ω resistive load connected to the secondary side. If the transformer is operated at full load (1kVA), determine, a) the secondary current IS; (3 marks) b) the secondary voltage VS; (2 marks) c) the primary current IP; (2 marks) d) the turn ratio of primary winding to secondary winding; and (2 marks) e) the number of...
A single-phase transformer is rated at 10 kVA, 240/100 V. When the secondary terminals are open-circuited and the primary winding is supplied at normal voltage, the input current is 2.6 A at a power factor of 0.3 lag. When the secondary terminals are short-circuited, a voltage of 18 V applied to the primary causes the full-load current to flow in the secondary, the power input to the primary being 240 W. Calculate (a) the regulation (b) the efficiency of the...
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
1. (10 PT) A three-phase bridge rectifier circuit shown in the figure phase voltage of 220 volts rms. A load of 100 Ω is connected across is supplied by a rectifier. Both the primary and secondary windings of transfor Assume the transformer has a turns ratio of unity mer are Y-connected a) 3 PTI On the top of voltage plot on next page indicate the diodes that will be conducting during different intervals of time. b) 17 PT] Plot the...
Most questions answered within 3 hours.
-
The Problem: The Case of the Harmonizing Vacations
Your CEO is exploring partnering with a European...
asked 45 minutes ago -
A chemical equation is balanced by adding coefficients in front
of some formulas so that the...
asked 44 minutes ago -
From the literature (reference your sources): What are the
lattice parameters of calcite and aragonite? Why...
asked 1 hour ago -
Your system is rejecting the question am asking which is
preceded by a case study. It...
asked 1 hour ago -
3. On January 2, 2000, Larry creates a trust with himself as
trustee. Larry as trustee...
asked 1 hour ago -
A member of the volleyball team spikes the ball. During this
process, she changes the velocity...
asked 1 hour ago -
Are adult gamers less likely to use a gaming console (Xbox,
PlayStation, Wii, etc...) than teen...
asked 2 hours ago -
The University of
Texas recently reported that 43% of college students aged 18-24
would spend their...
asked 2 hours ago -
The length of stay at a specific emergency department in
Phoenix, Arizona, in 2009 had a...
asked 1 hour ago -
. Please give the mechanism for this type of problem. Step by
Step
The toxin that...
asked 1 hour ago -
If you have a 1M stock solution and you want to dilute 1 :10
with water,...
asked 1 hour ago -
In a load instruction, the effective address is obtained by
A) Retriving the address from a...
asked 1 hour ago