Electricity is distributed from electrical substations to neighborhoods at 1.3×104 V . This is a 60Hz...
Electricity is distributed from electrical substations to neighborhoods at 1.3×104 V . This is a 60Hz oscillating (AC) voltage. Neighborhood transformers, seen on utility poles, step this voltage down to the 120Vthat is delivered to your house. Express your answer using two significant figures.
Q1:
How many turns does the primary coil on the transformer have if the secondary coil has 140 turns?
Q2:
No energy is lost in an ideal transformer, so the output power Pout from the secondary coil equals the input power Pin to the primary coil. Suppose a neighborhood transformer delivers 280 A at 120 V. What is the current in the 1.3×104 V line from the substation?
Homework Answers
Add Answer to:
Electricity is distributed from electrical substations to
neighborhoods at 1.3×104 V . This is a 60Hz...
Electricity is distributed from electrical substations to neighborhoods at 1.6×104 V . This is a 60Hz...
Electricity is distributed from electrical substations to neighborhoods at 1.6×104 V . This is a 60Hz oscillating (AC) voltage. Neighborhood transformers, seen on utility poles, step this voltage down to the 120V that is delivered to your house. How many turns does the primary coil on the transformer have if the secondary coil has 120 turns? No energy is lost in an ideal transformer, so the output power Pout from the secondary coil equals the input power Pin to the...
Electricity is distributed from electrical substations to neighborhoods at 1.4x104 V. This is a 60Hz oscillating...
Electricity is distributed from electrical substations to neighborhoods at 1.4x104 V. This is a 60Hz oscillating (AC) voltage. Neighborhood transformers, seen on utility poles, step this voltage down to the 120V that is delivered to your house. Part A How many turns does the primary coil on the transformer have if the secondary coil has 150 turns? Express your answer using two significant figures. VA - ? neprim turns Submit Request Answer Part B No energy is lost in an...
0Electricity is distributed from electrical substations to neighborhoods at 1.6×104 V . This is a 60Hzoscillating...
0Electricity is distributed from electrical substations to neighborhoods at 1.6×104 V . This is a 60Hzoscillating (AC) voltage. Neighborhood transformers, seen on utility poles, step this voltage down to the 120V that is delivered to your house. a,) How many turns does the primary coil on the transformer have if the secondary coil has 150 turns? b.) No energy is lost in an ideal transformer, so the output power Pout from the secondary coil equals the input power Pin to...
Suppose there are two transformers between your house and the high-voltage transmission line that distributes the...
Suppose there are two transformers between your house and the high-voltage transmission line that distributes the power. In addition, assume your house is the only one using electric power. At a substation the primary of a step-down transformer (turns ratio = 1:24) receives the voltage from the high-voltage transmission line. Because of your usage, a current of 62.5 mA exists in the primary of the transformer. The secondary is connected to the primary of another step-down transformer (turns ratio =...
Problem 1: The secondary winding of a transformer has a terminal voltage of v, (t) 282.8...
Problem 1: The secondary winding of a transformer has a terminal voltage of v, (t) 282.8 sin 377t V. The turns ratio of the transformer is 100:200 (a0.50) The impedances of this transformer referred to the primary side are The equivalent circuit is shown below lf (a) If the secondary current of the transformer is i,()-7.07sin(3771-36.87) A, what is the primary current of this transformer? (20 points) HINTS: I. Peak values of the secondary voltage and current are specified in...
Can you help me solve this problem and show the steps? The local transformer shown below...
Can you help me solve this problem and show the steps?
The local transformer shown below provides the last voltage stepdown in a power distribution system. A common sight on utility poles in residential areas, it is a single-phase transformer that typically has a 13.8-kV rms line to neutral on its primary coil, and a center tap secondary coil provides both 120 V rms and 240 V rms to service several residences. A typical example of this transformer is shown...
transformers
Learning Goal: To understand the concepts explaining the operation of transformers.One of the advantages of alternating current (ac) over direct current (dc) is the ease with which voltage levels can be increased or decreased. Such a need is alwayspresent due to the practical requirements of energy distribution. On the one hand, the voltage supplied to the end users must be reasonably low for safety reasons(depending on the country, that voltage may be 110 volts, 220 volts, or some other value...
The step-down transformer in a local neighborhood reduces the voltage from a 1,680 V line to...
The step-down transformer in a local neighborhood reduces the voltage from a 1,680 V line to 120 V. (a) If there are 175 loops on the secondary, how many are on the primary coil? ______ loops (b) What current does the transformer draw from the line if the current in the secondary is 36.0 A? ________ A (c) What are the power input and output? Input: _______ W Output: ________ W
Suppose a power station is located 50 miles from a power plant and electricity is transported...
Suppose a power station is located 50 miles from a power plant and electricity is transported via cables that have an internal resistance of 2 Ω / mile. Thanks to a transformer, the power dissipated across this distance is only 178 W. Power output of the transformer is 400 kW. If input at the power plant is supplied through a 100 A current, what is the ratio of the number of turns in the secondary coil to the number 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...
Electricity is distributed from electrical substations to neighborhoods at 1.4x104 V. This is a 60Hz oscillating (AC) voltage. Neighborhood transformers, seen on utility poles, step this voltage down to the 120V that is delivered to your house. Part A How many turns does the primary coil on the transformer have if the secondary coil has 150 turns? Express your answer using two significant figures. VA - ? neprim turns Submit Request Answer Part B No energy is lost in an...
Problem 1: The secondary winding of a transformer has a terminal voltage of v, (t) 282.8 sin 377t V. The turns ratio of the transformer is 100:200 (a0.50) The impedances of this transformer referred to the primary side are The equivalent circuit is shown below lf (a) If the secondary current of the transformer is i,()-7.07sin(3771-36.87) A, what is the primary current of this transformer? (20 points) HINTS: I. Peak values of the secondary voltage and current are specified in...
Can you help me solve this problem and show the steps?
The local transformer shown below provides the last voltage stepdown in a power distribution system. A common sight on utility poles in residential areas, it is a single-phase transformer that typically has a 13.8-kV rms line to neutral on its primary coil, and a center tap secondary coil provides both 120 V rms and 240 V rms to service several residences. A typical example of this transformer is shown...
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...
Most questions answered within 3 hours.
-
1. You have genotyped an entire population of lab mice for a
single locus (let's label...
asked 40 minutes ago -
As part of the process for improving the quality of their cars,
Toyota engineers have identified...
asked 43 minutes ago -
What is the relationship between the number of coils in a
solenoid and the emf induced...
asked 1 hour ago -
cell in human body reproduces. what process does it use? describe
the steps in the cell...
asked 2 hours ago -
The cheetah is one of the fastest accelerating animals, for it
can go from rest to...
asked 3 hours ago -
CaCO3 (s) ⇌ CaO (s) + CO2 (g)
At 637 °C, the reaction reaches equilibrium.
If...
asked 4 hours ago -
The condensate from a steam distillation contains 12.0 g of
compound A and 18.0 g of...
asked 7 hours ago -
A major economic benefit of fixed exchange rates compared to
floating rates is that
a. the...
asked 7 hours ago -
1) For this reaction,
SiCl4 (l)+ 2H2O(g) <->
SiO2 (s) + 4HCl (g) DeltaH = -127 KJ...
asked 7 hours ago -
Which of the following does NOT add to US GDP? A. Saudi Arabia
buys fighter jets...
asked 8 hours ago -
2. Describe market equilibrium in terms of the following
characteristics
d.
How supply and demand interactions...
asked 8 hours ago -
1a. Create a class named Computer
- Separate declaration from implementation (i.e. Header and CPP
files)...
asked 8 hours ago