Electrical Theory

Study the Electrical Engineering Study Material on core technical topics like electrical machines, generators, motors, basic electrical formulas.

Reading Electrical Schematics
  • Electrical Theory

Reading Electrical Schematics

To read electrical system diagrams and schematics properly, the condition or state of each component must first be understood. For…

6 years ago
  • Electrical Theory

Electrical Diagrams and Schematics

To read and interpret electrical diagrams and schematics, the basic symbols and conventions used in the drawing must be understood.…

6 years ago
  • Electrical Theory

4-Wire, Three-Phase Wye Wiring System

Unlike the single-phase wiring scheme that must make a provision for a neutral leg and separate ground, the three-phase system…

6 years ago
  • Electrical Theory

4-Wire, Three-Phase Delta Wiring System

Unlike the single-phase wiring scheme that must make a provision for a neutral leg and separate ground, the three-phase system…

6 years ago
  • Electrical Theory

3-Wire, Three-Phase Delta Wiring System

Unlike the single-phase wiring scheme that must make a provision for a neutral leg and separate ground, the three-phase system…

6 years ago
  • Electrical Theory

Single Phase Power Wiring Schemes

The source of single-phase (1φ) power in all facilities is by generation from a single-phase generator or by utilization of…

6 years ago
  • Electrical Theory

Electrical Wiring Terminology

To understand electrical wiring schemes used in power distribution systems, you must be familiar with the following terms. Ampacity -…

6 years ago
  • Electrical Theory

Low Voltage Protection (LVP) and Low Voltage Release (LVR)

Within the two basic categories of motor controllers, there are three major types of AC acrossthe-line controllers in use today.…

6 years ago
  • Electrical Theory

Motor Controllers

Motor controllers range from a simple toggle switch to a complex system using solenoids, relays, and timers. The basic functions…

6 years ago
  • Electrical Theory

Circuit Breaker Control Circuit

As we have discussed, circuit breakers may be remotely operated. In order to operate the breakers from a remote location,…

6 years ago