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Friday 22 September 2017
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Category: Electrical Engineering

arc-flash-mitigation

Arc Flash Study Top 10 FAQs

There are many frequently asked questions about performing an arc flash study (risk assessment) and understanding electrical safety...

wrong

What Could Go Wrong?

“Creating An Electrically Safe Work Condition” “Kill the Circuit.” This phrase is a colorful way of saying, “De-energize...

fault

How Did We Get Here? The History of Electrical Safety

National Electrical Code 110.9 Interrupting Ratings states that: Equipment intended to interrupt current at fault levels shall have an...

cable-faultt1

How to Locate Underground Cable Faults?

Finding the type of a fault in underground cables using a megger should not be a difficult task. But, finding the exact location of the...

ferranti-effect

Ferranti Effect in Transmission Line

What is Ferranti Effect: A long transmission line draws a substantial quantity of charging current. If such a line is open circuited or...

cap

How to calculate number of steps & reactive power of the capacitor banks?

Capacitor banks and steps Depending on the size of a compensation unit, it is assembled with capacitors of equal size (in bigger units) or...

the-types-of-independent-energy-power-plants_synchronous

Parallel Operation Of Alternators (Synchronous Generators)

It has already been seen that in the case of interconnected systems at power stations number of alternators are operating in parallel. In...

Arrester

Complete overview of lightning arresters

Lighting and Voltage Surge Lightning can create voltage surges in several of the following ways. Lightning can score a direct hit on your...

Insulator

Types of electrical insulators in overhead lines

Before going to discuss the types of insulators let us know what are electrical insulators.The overhead line conductors should be supported...

String

Potential distribution over a string of suspension insulators

Now let us discuss about potential distribution in a string of suspension insulators.Let us know how the potential is distributed over each...

Tower

Types of electric poles in overhead transmission lines

The supporting structures for overhead line conductors are various types of poles and towers called line supports.In general, the line...

TRF1

Power Transformer and Distribution Transformer

Power transformers are used in transmission network of higher voltages for step-up and step down application (400 kV, 200 kV, 110 kV, 66...

Motor

Three Phase Induction Motors – Construction

Construction A 3-phase induction motor has two main parts (i) stator and (ii) rotor. The rotor is separated from the stator by a small...

Question

Electrical Engineering Questions and Answers-1

1. What is 2 phase motor? A two phase motor is a motor with the the starting winding and the running winding have a phase split. e.g;ac...

Switchgear

What is Electrical Switchgear?

The apparatus used for switching, controlling and protecting the electrical circuits and equipment is known as switchgear. The term...

cable

Construction of Underground cables

An underground cable essentially consists of one or more conductors covered with suitable insulation and surrounded by a protecting...

Sag

Sag and Tension in transmission lines

Sag is interesting topic to discuss.We generally see a lot overhead lines  on our way.Sag in generally words can be said that distance...

DC Gen

DC Generator working principle

An electrical generator is a device that converts mechanical energy to electrical energy, generally using electromagnetic induction. The...

Sine_Wave_after

Power Quality Analysis

Power Quality: In the present scenario of power utilization and consumption, the importance of power quality is vital for a continuous and...

Corona

Corona Effect in Power System

Introduction: One of the phenomena associated with all energized electrical devices, including high-voltage transmission lines, is corona....