Home / Electric Power

Electric Power

It covers articles related to single and three phase power.

Single-Phase and Three-Phase System Explained

Single-Phase and Three-Phase Systems Explained

This guide covers single phase and three phase systems along with the Wye (Star) and Delta connections. Three phase system advantages and synchronization process are also discussed in detail. An alternator can be designed to generate single-phase or polyphase AC voltages. Figure 1 illustrates the basic configurations used to generate single-phase, two-phase, and three-phase AC voltages. …

Read More »

Importance of Electrical Grounding

Importance of Electrical Grounding

A fundamental safety principle of electrical installations is the protection of persons and livestock ‘against the danger that may arise from contact with exposed conductive parts which may become live under fault conditions. The principal method used is the automatic disconnection of the supply, of which the Earthing system is …

Read More »

Power Quality Problems in Power Distribution System

Correcting power quality problems requires an understanding of all power distribution system components and how a problem in one component can cause problems in other components. Distribution system components include transformers, distribution lines, switchboards, and panel boards, disconnects, circuit breakers, fuses, and receptacles to deliver, control, and protect the system. …

Read More »

What is a Smart Grid | Components

What is a Smart Grid | Components

An electrical grid is a network that delivers electrical power from the power plants where it is generated to customers. See Figure 1. An electrical grid includes wires, substations, transformers, and switches. Definition: A smart grid is an electrical grid that uses computer-based remote control and automation to deliver electrical …

Read More »

Electrical Elementary Diagrams

Electrical Elementary Diagrams

When the circuit components are either large, remote from each other, or numerous in a given electrical-power distribution system or control process drawing, the pictorial wiring diagram is an ineffective way to relay the required information. A different type of drawing, called the elementary diagram, which displays only the electrical …

Read More »

Circuit Breaker Types and Their Uses

types-of-circuit-breakers

Low-voltage circuit breakers are typically used in applications such as lighting circuits, motor control centers, feeder circuits and any application in which electrical power needs to be turned on and off and overcurrent protection is required. Medium-voltage circuit breakers are used in many of the same types of applications as …

Read More »

Medium Voltage Circuit Breakers Operation

medium voltage circuit breaker

Low- and medium-voltage Vacuum circuit breakers are similar in construction and operation. One of the primary differences between them is that the OCPDs on LVPCBs are mounted on the circuit breakers, while medium-voltage circuit breakers use protective relays, which are typically mounted on the enclosure door. Medium-voltage circuit breakers have …

Read More »