## LVDT – Construction and Working Principle

What is LVDT? Linear Variable Differential Transformer, LVDT is the most used inductive transducer for translating linear motion into electrical signal. This transducer converts a mechanical displacement proportionally into electrical signal. Construction: LVDT is a transformer consisting of one primary winding P and two secondary...

Phantom Loading is a loading condition in which an energy meter is connected to factious or phantom load for testing of energy meter with high current rating. Such loading is favorable to avoid wastage of energy during the test of measurement instrument. Testing of energy...

## Plant Load Factor and its Calculation

What is Plant Load Factor? Plant Load Factor (PLF) is the ratio of average power generated by the plant to the maximum power that could have been generated for a given time period. Thus mathematically it can be written as, PLF = Pavg / Pmax…………….(1)...

## Concept of Availability Based Tariff (ABT)

Availability Based Tariff (ABT) is a frequency based pricing scheme adopted in Indian Power Sector to maintain Grid discipline by implementing incentive / disincentive during unscheduled power interchange (UI). This scheme was introduced in the year of 2002. It is imperative here to understand the...

## Limiting Error and Relative Limiting Error

Limiting Error is defined as the maximum deviation either in positive side or negative side in the measurement by an instrument from the nominal value or true value. Let us assume that the true value or nominal value of a quantity is As and the...

## Copper to Aluminium Electrical Joints – Why Important?

Being an Electrical Engineer we may often face situations where copper and aluminium electrical joints are required. Such joints are required in various scenario. For example, in Switchyard the material of buses are of Aluminium whereas that of P1 &P2 connector of CTs are of...

## Galvanic Corrosion – Cause, Effect and Prevention

Galvanic Corrosion is a process of corrosion when two different metals are brought in electrical contact and the contact is bridged by a conductive fluid such as sea water, salted water etc. This is also known as Bimetallic Corrosion or dissimilar metal corrosion. How Galvanic...

## Calculation of Resonating Inductor for Tan Delta Test Kit?

What is Resonating Inductor? A Resonating Inductor is nothing special but it is just an Inductor having a specified value of Inductance. Resonating word is added here just to give idea of its purpose and working principle. Now you can guess. Obviously this inductor will...