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Rabert T

As an electrical engineer with 5 years of experience, I focus on transformer and circuit breaker reliability in 110/33-11kV and 33/11kV substations. I am a professional electrical engineer with experience in transformer service and maintenance. I understand electrical principles and have expertise troubleshooting, repairing, and maintaining transformers, circuit breakers, and testing them.
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Transformers

CT Saturation in Power Systems: Causes, Effects and Mitigation Techniques

Current Transformers (CTs) are essential components in electrical power systems.  Table of ContentsWhat is CT Saturation?Important Characteristics of CT SaturationCauses of CT Saturation1). High Primary Current (Fault Current)2). DC Offset in Fault Current3). Excessive CT Burden4). CT Operating Beyond Knee Point Voltage (KPV)5). Poor Magnetic...
Electrical Calculators

Circuit Breaker Size Calculator (NEC, IEC, IEEE)

Calculator A Circuit Breaker Size Calculator helps to determine the correct breaker rating based on load current, voltage and safety factors according to electrical standards such as NEC, IEC and IEEE. Circuit Breaker Size Calculator *, *::before, *::after { box-sizing: border-box; margin: 0; padding:...
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Transmission

How to Reduce Fault Current (Short Circuit Current) in Power Systems?

The purpose of short circuit current in power systems method statement is to explain...
Transformers

Stability Test of Power Transformer (Differential Protection Stability Test)

The stability test of a power transformer is done to verify that the transformer...
Electrical Calculators

DC Bus Capacitor Calculator

Calculator In variable speed drives (VSDs), inverters and industrial power conversion systems, the DC bus...
Electrical How to

Switchyard Design Checklist

This post provides a structured checklist for reviewing the design and validating the design...
Electrical Calculators

VFD Energy Savings Calculator

Calculator Electric motors utilized in pumps and fans consume a significant portion of industrial...
Switchgear

Vacuum Circuit Breaker (VCB) Fault Analysis and Corrective Maintenance Procedure

Corrective Maintenance (CM) is one of the important procedures in maintaining the reliability and...
Electrical Projects

How to Prepare Electrical BOQ for Projects? (Step by Step Procedure)

Electrical projects rarely fail due to installation issues alone and most problems start at...
Protection

Restricted Earth Fault (REF) Relay – Working Principle, Diagram & Transformer Protection Guide

Restricted Earth Fault (REF) protection is a highly sensitive unit protection scheme that is...
Electrical Calculators

Transformer Fault Current Calculator

Calculator Understanding transformer fault current is one of the most important calculations in the field...
Electrical Notes & Articles

Difference between FAT and SAT

What is Factory Acceptance Testing (FAT)? Factory Acceptance Test (FAT) is conducted at the manufacturers...
Switchgear

Electrical Testing of Gas Insulated Switchgear (GIS) in High Voltage (HV) Substations

GIS Testing Electrical testing of (GIS) Gas Insulated Switchgear is essential for ensuring operational safety,...
Electrical How to

PLC-VFD-Motor Control System: Working Principle, Wiring, Procedure and Checklist

A Variable Frequency Drive (VFD) control system integrated with the Programmable Logic Controller (PLC)...
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Transformers

CT Saturation in Power Systems: Causes, Effects and Mitigation Techniques

Current Transformers (CTs) are essential components in electrical power systems.  Table of ContentsWhat is CT...
Electrical Calculators

Circuit Breaker Size Calculator (NEC, IEC, IEEE)

Calculator A Circuit Breaker Size Calculator helps to determine the correct breaker rating based on...
Transmission

How to Reduce Fault Current (Short Circuit Current) in Power Systems?

The purpose of short circuit current in power systems method statement is to explain...
Transformers

Stability Test of Power Transformer (Differential Protection Stability Test)

The stability test of a power transformer is done to verify that the transformer...

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