Jignesh Parmar
74 awesome technical articles
Jignesh Parmar has completed M.Tech (Power System Control), B.E (Electrical). He is member of Institution of Engineers (MIE), India. He has more than 20 years experience in transmission & distribution-energy theft detection and maintenance electrical projects.
Transmission and Distribution
Total Losses in Power Distribution and Transmission Lines
Power generated in power stations pass through large and complex networks like transformers, overhead lines, cables and other equipment and reaches at the end users. It is fact that the… Read more
Aug 19, 2013 | By jiguparmar
Energy and Power
How to calculate voltage regulation of distribution line
Introduction to voltage regulation Voltage Regulation for 11KV, 22KV, 33KV Overhead Line Permissible Voltage Regulation (As per REC) Voltage Regulation Values Required Size of Capacitor Optimum location of capacitors Voltage… Read more
Jun 10, 2013 | By jiguparmar
Energy and Power
How to Determine Correct Number of Earthing Electrodes (Strips, Plates and Pipes) – part 2
Continued from first part: How to Determine Correct Number of Earthing Electrodes (Strips, Plates and Pipes) – part 1 The Earth Resistance of Single Plate electrode is calculated as per… Read more
May 13, 2013 | By jiguparmar
Electrical Lectures
How to Determine Correct Number of Earthing Electrodes (Strips, Plates and Pipes) – part 1
Number of Earthing Electrode and Earthing Resistance depends on the resistivity of soil and time for fault current to pass through (1 sec or 3 sec). If we divide the… Read more
Apr 05, 2013 | By jiguparmar
Low Voltage
Defining Size and Location of Capacitor in Electrical System (2)
Continued from part 1: Defining Size and Location of Capacitor in Electrical System (2) Size of circuit breaker (CB), fuse and conductor of capacitor bank: A. Thermal and magnetic setting… Read more
Mar 11, 2013 | By jiguparmar
Protection
Connections Of Overcurrent Relay (part 2)
Continued from first part: Types and Applications Of Overcurrent Relay (part 1) It’s used for: 3-phase faults the overcurrent relays in all the 3-phases act. Phase to phase faults the… Read more
Feb 02, 2013 | By jiguparmar
Protection
Types and Applications Of Overcurrent Relay (1)
Types of protection: Unit Type Protection Non-unit schemes Overcurrent protection Earth fault protection Various types of Line Faults Overcurrent Relay Purpose and Ratings Primary requirement of Overcurrent protection Purpose of… Read more
Feb 01, 2013 | By jiguparmar
Energy and Power
Comparison of Protection Relay Types
This comparison summarize characteristics of all protection relay types described in previously published technical articles: Using Protective Relay For Fighting Against Faults The Good Old Electromechanical Protective Relay The Solid… Read more
Jan 23, 2013 | By jiguparmar
Cables
Differences Between Earthed and Unearthed Cables
In HT electrical distribution, the system can be earthed or unearthed. The selection of unearthed or earthed cable depends on distribution system. If such system is earthed, then we have… Read more
Jan 21, 2013 | By jiguparmar
Energy and Power
Flexibility and Reliability of Numerical Protection Relay
The first protection devices based on microprocessors were employed in 1985. The widespread acceptance of numerical technology by the customer and the experiences of the user helped in developing the… Read more
Dec 27, 2012 | By jiguparmar
Energy and Power
Few Words About Digital Protection Relay
Around 1980s the digital relay entered the market. Compared to the Solid State Relay, the digital relay takes the advantages of the development of microprocessors and microcontrollers. Instead of using… Read more
Dec 24, 2012 | By jiguparmar
Energy and Power
The Solid State Relay (Static Relay) Overview
The static relay is the next generation relay after electromechanical type.The Solid Static relays was first introduced in 1960’s. The term ‘static’ implies that the relay has no moving mechanical… Read more
Dec 19, 2012 | By jiguparmar
Energy and Power
The Good Old Electromechanical Protective Relay
This is the first generation oldest relaying system and they have been in use for many years. They have earned a well-deserved reputation for accuracy, dependability, and reliability. There are… Read more
Dec 18, 2012 | By jiguparmar
Energy and Power
Using Protective Relay For Fighting Against Faults
Introduction to Protective Relay Working Principle of Protective Scheme What is Relay? Functions of Protective Relay Desirable qualities of protective relaying Terminology of protective relay History of Protective Relay Types… Read more
Dec 17, 2012 | By jiguparmar
High Voltage
Electrical Safety Standards for LV/MV/HV (Part-3)
Continued from part 2 – Electrical Safety Standards for LV/MV/HV (Part-2) Standard: Northern Ireland Electricity (NIE), 6/025 ENA Code: Indian Electricity Rules / Central Electricity Authority Right of Way Clearance… Read more
Nov 14, 2012 | By jiguparmar
