Perhaps the most basic and necessary protective relay function is overcurrent: commanding a circuit breaker to…
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Some problem-solving techniques are unique to quantitative problems, involving mathematical calculations. In…
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The transformer is one of the most important components in all of AC circuitry. Principally used to…
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A bridge circuit is basically a pair of voltage dividers where the circuit output is taken as the difference…
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Using filter cells to eliminate wavelengths associated with interfering gases is called positive filtering in…
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As we have seen, the concept of differentiation is finding the rate-of-change of one variable compared to…
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Few areas of mathematics are as powerfully useful in describing and analyzing the physical world as calculus:…
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In the United States, the ANSI and IEEE organizations have standardized a set of numerical codes referring to…
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First, let us review some of the properties of differentials and derivatives, referencing the expression and…
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As a general rule, high achievement only takes place in an atmosphere of high expectations. Sometimes these…
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Certain types of nuclear radiation easily penetrates the walls of industrial vessels, but is attenuated by…
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An electric motor is often used as a discrete control element in a control system if driving a pump, conveyor…
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All masses require force to accelerate (we can also think of this in terms of the mass generating a reaction…
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One of the great benefits of digital technology is the ability to communicate vast amounts of information over…
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Area refers to the size of two-dimensional surface. Volume refers to the size of a three-dimensional space. To…
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DC electric current signals may also be used to communicate process measurement information from transmitters…
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Impedance in a series circuit is the orthogonal sum of resistance and reactance: \[Z = \sqrt{R^2 + (X_L -…
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At the root of successful system diagnosis is a rigorous adherence to scientific reasoning. There exists no…
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(Will be addressed in future versions of this book)
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Capacitive level instruments measure electrical capacitance of a conductive rod inserted vertically into a…
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