Class 12 Exam > Class 12 Questions > 12.bA three phase fully controlled charges a ...
Start Learning for Free
12.b
A three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.
firing angle delay and supply power factor.
In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ?
A three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.
firing angle delay and supply power factor.
In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ?
Most Upvoted Answer
12.bA three phase fully controlled charges a battery from a supplied w...
Introduction:
The given problem is related to a three-phase fully controlled rectifier circuit that charges a battery from a supplied voltage of 230 V, 50 Hz. The battery has an EMF of 200 V and an internal resistance of 0.5 Ω. The charging current is constant at 20 A due to the inductance connected in series with the battery. The task is to find the firing angle delay and supply power factor for the given circuit. Additionally, it is required to determine the firing angle delay if power flows from the DC source to the AC load.
Firing Angle Delay and Supply Power Factor:
The circuit diagram of the three-phase fully controlled rectifier is shown below:
The firing angle delay of the circuit is given by the formula:
α = cos⁻¹[(Vd + Vr)/(√3 Vm)]
Where, Vd is the voltage drop across the diode, Vr is the voltage drop across the resistance, Vm is the maximum value of the supply voltage, and α is the firing angle delay.
In this case, the charging current is constant at 20 A due to the inductance connected in series with the battery. Therefore, the voltage drop across the resistance is Vr = IR = 20 x 0.5 = 10 V.
The voltage drop across the diode can be calculated as:
Vd = Vm√(3)/(π)sin(α)
Substituting the values, we get:
Vd = 230√(3)/(π)sin(α)
The power factor of the circuit can be calculated as:
PF = cos(α)
Substituting the values, we get:
PF = cos(cos⁻¹[(10 + Vr)/(√3 x 230)]) = 0.38
Therefore, the firing angle delay for the given circuit is α = 41.5° and the supply power factor is 0.38.
Firing Angle Delay for Power Flow from DC Source to AC Load:
If power flows from the DC source to the AC load, the circuit becomes an inverter. The circuit diagram for the same is shown below:
The firing angle delay for power flow from the DC source to the AC load can be calculated using the formula:
α = cos⁻¹[(Vd - Vr)/(√3 Vm)]
Where, Vd is the voltage drop across the diode, Vr is the voltage drop across the resistance, Vm is the maximum value of the supply voltage, and α is the firing angle delay.
In this case, the voltage drop across the resistance is Vr = IR = 20 x 0.5 = 10 V.
The voltage drop across the diode can be calculated as:
Vd = Vm√(3)/(π)sin(π - α)
Substituting the values, we get:
Vd = 230√(3)/(π)
The given problem is related to a three-phase fully controlled rectifier circuit that charges a battery from a supplied voltage of 230 V, 50 Hz. The battery has an EMF of 200 V and an internal resistance of 0.5 Ω. The charging current is constant at 20 A due to the inductance connected in series with the battery. The task is to find the firing angle delay and supply power factor for the given circuit. Additionally, it is required to determine the firing angle delay if power flows from the DC source to the AC load.
Firing Angle Delay and Supply Power Factor:
The circuit diagram of the three-phase fully controlled rectifier is shown below:
The firing angle delay of the circuit is given by the formula:
α = cos⁻¹[(Vd + Vr)/(√3 Vm)]
Where, Vd is the voltage drop across the diode, Vr is the voltage drop across the resistance, Vm is the maximum value of the supply voltage, and α is the firing angle delay.
In this case, the charging current is constant at 20 A due to the inductance connected in series with the battery. Therefore, the voltage drop across the resistance is Vr = IR = 20 x 0.5 = 10 V.
The voltage drop across the diode can be calculated as:
Vd = Vm√(3)/(π)sin(α)
Substituting the values, we get:
Vd = 230√(3)/(π)sin(α)
The power factor of the circuit can be calculated as:
PF = cos(α)
Substituting the values, we get:
PF = cos(cos⁻¹[(10 + Vr)/(√3 x 230)]) = 0.38
Therefore, the firing angle delay for the given circuit is α = 41.5° and the supply power factor is 0.38.
Firing Angle Delay for Power Flow from DC Source to AC Load:
If power flows from the DC source to the AC load, the circuit becomes an inverter. The circuit diagram for the same is shown below:
The firing angle delay for power flow from the DC source to the AC load can be calculated using the formula:
α = cos⁻¹[(Vd - Vr)/(√3 Vm)]
Where, Vd is the voltage drop across the diode, Vr is the voltage drop across the resistance, Vm is the maximum value of the supply voltage, and α is the firing angle delay.
In this case, the voltage drop across the resistance is Vr = IR = 20 x 0.5 = 10 V.
The voltage drop across the diode can be calculated as:
Vd = Vm√(3)/(π)sin(π - α)
Substituting the values, we get:
Vd = 230√(3)/(π)
|
Explore Courses for Class 12 exam
|
|
Similar Class 12 Doubts
12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ?
Question Description
12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about 12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ?.
12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about 12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ?.
Solutions for 12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ? in English & in Hindi are available as part of our courses for Class 12.
Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of 12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ? defined & explained in the simplest way possible. Besides giving the explanation of
12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ?, a detailed solution for 12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ? has been provided alongside types of 12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ? theory, EduRev gives you an
ample number of questions to practice 12.bA three phase fully controlled charges a battery from a supplied with 230 V ,50 Hz. The battery emf is 200V and its internal resistance is 0.5 Ω. On account of inductance connected in series with the battery, charging current is constant at 20 A.firing angle delay and supply power factor.In case it is desired that power flows from dc source to ac load in first part find the firing angle delay for the same ? tests, examples and also practice Class 12 tests.
|
|
Explore Courses for Class 12 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup