Experiment
1 6
phase Angle, Active, and Apparent Power
OBJECllVE
To study the meaning ofphase angle.
To study the relationship between active and apparent power.
_ _-I n DCFmIt,-taT~tanw ioad, as the voltage across the resistor increases, the current thro
Experiment V2 Determination of Transformer Equivalent Circuit Parameters Using the Open Circuit and Short Circuit Tests Objective To determine the equivalent circuit parameters of a single phase transformer using the open circuit and short circuit tests.
Experiment
47
Three-Phase Power Measurement
To measure power in a three-phase circuit using the t o wattmeter method. w
To determine t active and reactive power, and the power factor of a threehe phase system.
DISCUSSION
A wattmeter, usedfor measuring pow
Experiment
4-
Three-Phase Watts, Vars, and Volt-Amperes
OBJECTIVE
To determine the apparent, active and reactive h e r in three-phase circuits. To calculate the power factor in three-phase circuits. DISCUSSION In Experiment 45 you calculated active power
Experiment
45
Three-Phase Circuits
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 three-ph
Experiment
15
The Wattmeter
OBJECTIVE To learn how to use a wattmeter. To become familiar with acbive and apparent power in AC circuits.
DISCUSSION
In direct current circuits the power (in watts) supplied to a resistive load is always equal to the product
Single Phase Circuit
Review
Inductive circuit
The phase-shift between the current and voltage is negative. The current is lagging with respect to the voltage.
10
a
I L R g
b
V( t )
V(t) I(t)
5 0 5
V
VL VR
I( t )
10
0
60
120
180 t
240
300 360
02/23/10
360
CONVERSION
Energy in one form Energy in another form
Losses Efficiency = output / input
1
Types of converters Rotating machines Solar cells Power electronic converters Fuel cells Nuclear reactor Batteries Flywheels Water - hydroelectric
2
Fuel cells Conve
Computer Usage
Knowledge of Mathcad and/or Matlab Problem solving by Mathcad/Matlab (or equivalent package) encouraged
02/23/10
EEE 360. Introduction
1
Laboratory
NO LABS THIS WEEK
Laboratory: Eleven (11) laboratory sessions
with a total of 29 experiments