Experiment 2 Phase Angle, Active, and Apparent Power
OBJECTIVE
To study the meaning of phase angle.
To study the relationship between active and apparent power.
DISCUSSION
In DC circuit, with a resistive load, as the voltage across the resistor increases,
Experiment 4 Three-Phase Circuits
OBJECTIVE
To study the relationship between voltage and current in three-phase circuits.
To learn how to make delta and wye connections.
To calculate the power in three-phase circuits.
DISCUSSION
Students tend to approach
Experiment 2 The Wattmeter
OBJECTIVE
To learn how to use a wattmeter.
To become familiar with active and apparent power in AC circuits.
DISCUSSION
In Direct Current (DC) circuits, the power (in watts) supplied to a resistive load is always equal
to the pr
Experiment 9 The Autotransformer
OBJECTIVE
To study the voltage and current relationship of an autotransformer.
To learn how to connect a standard transformer as an autotransformer.
DISCUSSION
There is a special type of transformer which physically has on
Experiment 8 Transformer Equivalent Circuit
OBJECTIVE
To determine the equivalent circuit parameters of a single phase transformer using the open
and short circuit tests.
DISCUSSION
A real transformer has several inductive and resistive characteristics th
Experiment
1 9
L p a t t , Var , Volt-Ampere, and Power' Factor
OBJECTlVE
To study the relationship among wait, var and vdt-ampere. To determine the apparent, active and reactive power of an inductive load. To improve the power factor of an induct
Experiment 10 The Alternator Under Load
OBJECTIVE
To determine the voltage regulation characteristics of the alternator with resistive, capacitive
and inductive loading.
To observe the effect of unbalanced loads on the output voltage.
DISCUSSION
The outpu
Experiment 1 Phase Angle, Active, and Apparent Power
OBJECTIVE
To study the meaning of phase angle.
To study the relationship between active and apparent power.
DISCUSSION
In DC circuit, with a resistive load, as the voltage across the resistor increases,
Experiment
42
The Autotransformer
OBJECTIVE To study the voltage and current relationship of an autotransformer. To leam how to connect a standard transformer as an autotransformer.
DISCUSSION
There is a special type of transformer which physicall
Experiment 21 The Split-Phase inductor Motor - Part III
OBJECTIVE
To measure the starting and operating characteristics of the split-phase motor under load and
no-load conditions.
To study the power factor and efficiency of the split-phase motor.
DISCUSSI
Experiment 20 The Split-Phase inductor Motor - Part II
OBJECTIVE
To learn the basic motor wiring connections.
To observe the starting and running operation of the split-phase motor.
DISCUSSION
When power is applied to a split-phase induction motor, both t
Experiment 19 The Split-Phase Inductor Motor - Part I
OBJECTIVE
To examine the construction of a split-phase motor.
To measure the resistance of its windings.
DISCUSSION
Some means must be provided for getting two phases from the standard single-phase pow
Experiment 22 The Capacitor-Start Motor
OBJECTIVE
To measure the starting and operating characteristics of the capacitor-start motor.
To compare its starting and running performance with the split-phase motor.
DISCUSSION
When the split-phase rotating fiel
Experiment 24 Buck Converter
OBJECTIVE
To perform experiments with a voltage mode buck converter to explore and
understand its operating characteristics in open and closed loop control.
DISCUSSION
The buck converter, in voltage mode control, is a type of
Experiment 23 Diode Bridge Rectifier
OBJECTIVE
To study the operation of a single phase diode bridge rectifier.
DISCUSSION
Rectifiers are a class of power converters which convert alternating current (AC) to direct current
(DC). Rectifiers are classified
ELI the ICE man
ELI
voltage leads current
Inductive
Positive power factor
angle
ICE
Current leads voltage
Capacitative
Negative power factor angle
If the current lags the voltage, the load is inductive, the angle is positive, and the case is said to have
EEE 360
Energy Conversion and
Transport
V. Vittal
Chapter 9 Week 5
Load factor
Three phase circuits and the per
unit system
Circuit breakers
1
Load factor
Load factor is calculated for a time period T
(often a day, or a season, or a year) and is
the ener
EEE 360
Energy Conversion and Transport
V. Vittal
Chapters 7 - Week 4
Single phase AC circuits
1
Some simple examples
A household drill uses an induction motor.
The drill current is 4 amps when plugged
into the 117 volt AC wall outlet. Find the
apparent i
EEE 360
Energy Conversion and Transport
V. Vittal
Chapters 3,4,5 - Week 2
Energy Resources, Power Plants,
Environmental Concerns
1
CONVERSION
Energy in
one form
Energy in
another form
Losses
Efficiency = output / input
2
Types of converters
Rotating machi
EEE 360
Energy Conversion and
Transport
V. Vittal
Chapter 8 Week 6
Electric Safety
1
Electric safety
Since electricity is ubiquitous and readily
available safety and standards related to
safety are a primary issue in its utilization.
In the U.S. the Occ
EEE 360
Energy Conversion and Transport
V. Vittal
Chapter 6 - Week 3
Renewable energy
1
Renewable energy
In this week we will discuss some of the
primary renewable energy resources.
We will discuss in some detail
Solar energy
Wind energy
Hydroelectri