One of the fundamental laws of electric circuits is Kirchhoff’s Current Law, which states the algebraic…
Textbook
Those familiar with industrial instrumentation will find much within the electric power industry remarkably…
Textbook
By definition, a source is a device delivering energy into a system, while a load is a device extracting…
Textbook
A form of protection against faults on long-distance power lines is called distance relaying, so named because…
Textbook
“Polyphase” means “many phases,” describing a form of AC electrical system where…
Textbook
Three-phase AC is the dominant mode of electric power generation and distribution in modern societies.…
Textbook
DC electric motors generate torque by a reaction between two magnetic fields: one field established by…
Textbook
Disconnect Switches Disconnects are switches designed to isolate sections of a power system in case of damage…
Textbook
Electrical power grids primarily consist of three-phase AC circuits. This means most power lines (transmission…
Textbook
Sometimes we encounter a diversity of instrument signal standards in one control system. Such is the case with…
Textbook
Since we often use electricity to convey energy from one location to another, it is important to be able to…
Textbook
The term “grid” refers to the conductors and equipment interconnecting power sources to power…
Textbook
The two “process variables” we rely on most heavily in the field of electrical measurement and…
Textbook
Given the ability of pressurized fluids to transmit force over long distances, it is not surprising that many…
Textbook
In the United States, the ANSI and IEEE organizations have standardized a set of numerical codes referring to…
Textbook
Current is the name we give to the motion of electric charges from a point of high potential to a point of low…
Textbook
While 50 and 51 (instantaneous and time overcurrent) relay functions monitor line current magnitude and guard…
Textbook
A machine in the broad sense of the word is any device designed to translate some form of energy into useful…
Textbook
Classical mechanics (often called Newtonian mechanics in honor of Isaac Newton) deal with forces and motions…
Textbook
Circuit breakers used in residential, commercial, and light industrial service are self-tripping devices: they…
Textbook
The term “grid” refers to the conductors and equipment interconnecting power sources to power…
Textbook
Three-phase AC is the dominant mode of electric power generation and distribution in modern societies.…
Textbook
Since we often use electricity to convey energy from one location to another, it is important to be able to…
Textbook
Circuit breakers used in residential, commercial, and light industrial service are self-tripping devices: they…
Textbook
In the United States, the ANSI and IEEE organizations have standardized a set of numerical codes referring to…
Textbook
Those familiar with industrial instrumentation will find much within the electric power industry remarkably…
Textbook
The two “process variables” we rely on most heavily in the field of electrical measurement and…
Textbook
“Polyphase” means “many phases,” describing a form of AC electrical system where…
Textbook
Disconnect Switches Disconnects are switches designed to isolate sections of a power system in case of damage…
Textbook
One of the fundamental laws of electric circuits is Kirchhoff’s Current Law, which states the algebraic…
Textbook
Electrical power grids primarily consist of three-phase AC circuits. This means most power lines (transmission…
Textbook
The transformer is one of the most important components in all of AC circuitry. Principally used to…
Textbook
While 50 and 51 (instantaneous and time overcurrent) relay functions monitor line current magnitude and guard…
Textbook
By definition, a source is a device delivering energy into a system, while a load is a device extracting…
Textbook
Current is the name we give to the motion of electric charges from a point of high potential to a point of low…
Textbook
A form of protection against faults on long-distance power lines is called distance relaying, so named because…
Textbook
Most people reading this book have likely had the experience of adjusting water temperature using two hand…
Textbook
Like so many other industrial data networks, FOUNDATION Fieldbus is an “unswitched” or…
Textbook
Modern DC and AC motor drives provide features useful when using electric motors as final control elements.…
Textbook
A level switch is one detecting the level of liquid or solid (granules or powder) in a vessel. Level switches…
Textbook
Modern analog-to-digital converters are phenomenally accurate, dependable, repeatable, and surprisingly…
Textbook
An important legacy technology for all kinds of continuous measurement is the self-balancing system. A…
Textbook
The vast majority of PID controllers in service today are digital in nature. Microprocessors executing PID…
Textbook
Control strategies such as cascade, ratio, feedforward, and those containing limit and selector functions can…
Textbook
The following collection of photographs chronicles the complete disassembly of a Fisher E-body globe valve…
Textbook
Imagine a major marathon race, where hundreds of runners gather in one place to compete. When the starting gun…
Textbook
A great many precision instruments use the principle of balance to measure some quantity. Perhaps the simplest…
Textbook
The transformer is one of the most important components in all of AC circuitry. Principally used to…
Textbook
Much of our knowledge about atomic structure comes from experimental data relating the interaction between…
Textbook
The final step in treating wastewater before releasing it into the natural environment is to kill any harmful…
Textbook
The next level of detail is the Process and Instrument Diagram, or P&ID. Here, we see a “zooming…
Textbook
Tube, like pipe, is a hollow structure designed to provide an enclosed pathway for fluids to flow. In the case…
Textbook
In the United States, the most common language used to program PLCs is Ladder Diagram (LD), also known as…
Textbook
The term “grid” refers to the conductors and equipment interconnecting power sources to power…
Textbook
The following animation shows how the “rotating” magnetic field of a three-phase AC induction…
Textbook
Shown here is a partial listing of principles applied in the subject matter of this chapter, given for the…
Textbook
Facebook
Google
GitHub
Linkedin