Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 20.2, Problem 3R
a.
To determine
Mention the section of code that governs the grounding of a wall-mounted oven.
b.
To determine
Explain the method permitted for grounding of the wall-mounted oven.
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Q5.B How parallel connected DC-DC converters increase the effective switching
frequency? Show the advantages and limitations in these converters.
Q4. Give the reasons for the following
1. In AC machines drives, the frequency modulation index should be integer
regardless the value of switching frequency.
2. Variable de link voltage is adopted in inverter operating in square wave operation
mode
3. Practical values of switch utilization factor is different from theoretical values
4. In three-phase inverter with my is odd and multiple of 3, the even and tripplen
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Q6.B. Answer the following questions
1. Does the steady state load current in a half bridge inverter has an average value and
what is the adverse effect of the average current component?
2. Can the LPF of single phase bridge inverter based on bipolar PWM be used with
single phase bridge inverter based on unipolar PWM? Explain
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