Presentation is loading. Please wait.

Presentation is loading. Please wait.

Problem # 2-3/4 A core-type transformer rated at 37.5 kVA, 2400 – 480 V, and 60 Hz has a core whose mean length is 1.07 m and whose cross-sectional area.

Published by Modified over 9 years ago

Similar presentations

Presentation on theme: "Problem # 2-3/4 A core-type transformer rated at 37.5 kVA, 2400 – 480 V, and 60 Hz has a core whose mean length is 1.07 m and whose cross-sectional area."— Presentation transcript:

1 Problem # 2-3/4 A core-type transformer rated at 37.5 kVA, 2400 – 480 V, and 60 Hz has a core whose mean length is 1.07 m and whose cross-sectional area is 95 cm2. The application of rated voltage causes a magnetic field intensity of 352 A-t/m (rms), and a maximum flux density of T. Determine the number of turns in the primary and secondary. Determine the magnetizing current when operating as a step-up transformer.

2 l=1.07m A=95cm2

3 Number of Turns

4 Magnetizing Current as a Step-Up Transformer

Download ppt "Problem # 2-3/4 A core-type transformer rated at 37.5 kVA, 2400 – 480 V, and 60 Hz has a core whose mean length is 1.07 m and whose cross-sectional area."

Similar presentations

Faradays Law of Induction A changing magnetic field induces an electric field. The induced electric field causes a current to flow in a conductor.

Faradays Law of Induction A changing magnetic field induces an electric field. The induced electric field causes a current to flow in a conductor.
Power I, VI, V I max  V max  I, VI, V I max AC Circuits use a similar definition of power as DC circuits. The one detail that need to be included.

Power I, VI, V I max  V max  I, VI, V I max AC Circuits use a similar definition of power as DC circuits. The one detail that need to be included.
TRANSFORMERS. TRANSFORMER PARAMETERS Turns Ratio (n) It is defined as the ratio of the number of turns in the secondary winding (N sec ) to the number.

TRANSFORMERS. TRANSFORMER PARAMETERS Turns Ratio (n) It is defined as the ratio of the number of turns in the secondary winding (N sec ) to the number.
Problem #2-8 A 480 – 120 V, 60 Hz transformer has its high voltage winding connected to a 460 V system, and its low voltage winding connected to a 24/32.8°Ω.

Problem #2-8 A 480 – 120 V, 60 Hz transformer has its high voltage winding connected to a 460 V system, and its low voltage winding connected to a 24/32.8°Ω.
Magnetic Design Considerations Transformers –Used to step-up or step-down voltages Inductors –Storage during energy transfer –Carries a DC current while.

Magnetic Design Considerations Transformers –Used to step-up or step-down voltages Inductors –Storage during energy transfer –Carries a DC current while.
Example 1.1 a). Determine the voltage that must be applied to the magnetizing coil in order to produce a flux density of 0.2T in the air gap. Flux fringing.

Example 1.1 a). Determine the voltage that must be applied to the magnetizing coil in order to produce a flux density of 0.2T in the air gap. Flux fringing.
Problem # 1-6/5 mean core length = 52 cm length of air gap = 0.14 cm

Problem # 1-6/5 mean core length = 52 cm length of air gap = 0.14 cm
16.360 Lecture 27 Exam III. 16.360 Lecture 27 Last Lecture The ideal Transformer Moving Conductor in a Static Magnetic Field.

Lecture 27 Exam III Lecture 27 Last Lecture The ideal Transformer Moving Conductor in a Static Magnetic Field.
AHBMH DEE2113 : Chapter 5 - Transformer & Mutual Inductance 1 CHAPTER 5: TRANSFORMER AND MUTUAL INDUCTANCE Review of Magnetic Induction Mutual Inductance.

AHBMH DEE2113 : Chapter 5 - Transformer & Mutual Inductance 1 CHAPTER 5: TRANSFORMER AND MUTUAL INDUCTANCE Review of Magnetic Induction Mutual Inductance.
RL Circuits Physics 102 Professor Lee Carkner Lecture 22.

RL Circuits Physics 102 Professor Lee Carkner Lecture 22.
Topic 12: Electromagnetic induction. 16/07/2015 3 Topic 12: Electromagnetic induction Describe the inducing of an emf by relative motion between a conductor.

Topic 12: Electromagnetic induction. 16/07/ Topic 12: Electromagnetic induction Describe the inducing of an emf by relative motion between a conductor.
Magnetics Design Primary Constraints:

Magnetics Design Primary Constraints:
Magnetic Field Basic Concepts:

Magnetic Field Basic Concepts:
Transformers.

Transformers.
Transformers Test Friday 3/30/12. Electromagnetic Induction Induction is the process of producing (inducing) a voltage by passing a wire through a magnetic.

Transformers Test Friday 3/30/12. Electromagnetic Induction Induction is the process of producing (inducing) a voltage by passing a wire through a magnetic.
Chapter 29 Electromagnetic Induction and Faraday’s Law

Chapter 29 Electromagnetic Induction and Faraday’s Law
Day 4: Transformers Definition of a Transformer Transformer Windings Transformer Operation using Faraday’s Law Step-up & Step-down Transformers Turns Ratio.

Day 4: Transformers Definition of a Transformer Transformer Windings Transformer Operation using Faraday’s Law Step-up & Step-down Transformers Turns Ratio.
Transformers  A transformer is used to change alternating p.d.s. from a lower to a higher voltage or vice versa. A simple transformer consists of two.

Transformers  A transformer is used to change alternating p.d.s. from a lower to a higher voltage or vice versa. A simple transformer consists of two.
EMF EQUATION OF TRANSFORMER

EMF EQUATION OF TRANSFORMER
Alternating Current Characteristics of AC The Transformer Transmission Rectification.

Alternating Current Characteristics of AC The Transformer Transmission Rectification.

Similar presentations

Ads by Google