## Ammeter Shunt | Construction & Calculation

Ammeter Shunt is used for the measurement of heavy current using an Ammeter. Ammeter Shunt is basically a low resistance connected in parallel with the moving coil so that most of the current is bypassed by the Shunt and hence only a small current flows through the moving coil. Why do we need Ammeter Shunt … Read moreAmmeter Shunt | Construction & Calculation

## All Day Efficiency of Distribution Transformer

Definition Energy Efficiency of a transformer is defined as the ratio of total energy output for a certain period to the total energy input for the same period. All Day Efficiency is defined as the ratio of the energy output to the energy input taken over a 24 hour period. All Day Efficiency is basically … Read moreAll Day Efficiency of Distribution Transformer

## Islanding Operation in Electrical Grid

Frequency and Voltage are two important parameters which decide the healthiness of the electrical grid at a particular instant of time. Frequency fluctuations occur in the electrical grid when there is a mismatch between the amount of power generation and amount of power demand. Both under frequency and over frequency operation is harmful to the … Read moreIslanding Operation in Electrical Grid

## Voltage & Frequency Operating Range (tolerance) of Grid Supply in India

Frequency variation in the power system exists due to the mismatch between the supply of power and demand for the power. Voltage variations exist in the power grid is due to the mismatch in the reactive power between demand (MVAR) and available. In spite of all these variations, there is a certain limit for the … Read moreVoltage & Frequency Operating Range (tolerance) of Grid Supply in India

## Telemetry Systems

In modern measurement systems, the various components comprising the system are usually located at the distance from each other. It is, therefore, becomes necessary to transmit the data and information between them through some form of communication channel. Telemetry may be defined as measurement at a distance. Telemetry is indicating, recording, integrating a quantity at … Read moreTelemetry Systems

## Causes of Low Power Factor | Power Factor Improvement

In this article, we will learn about causes of low power factor and methods to avoid low Power Factor. Causes of Low Power Factor Some of the reasons for low power factor are 1. Induction motors and Transformers Where ever the magnetising current is to be produced by the ac power such as in the … Read moreCauses of Low Power Factor | Power Factor Improvement