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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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Electrical How to

HT Transformer & DG Works BOQ with Checklist

A Bill of Quantities (BOQ) defines, quantifies & prices every component of work for an HT electrical installation.  This BOQ covers the 11 kV power intake, distribution transformers and diesel generator (DG) sets which is the core of any substation.  It serves as the binding technical...
Electrical Calculators

Earth Fault Loop Impedance Calculator

The Earth Fault Loop Impedance (EFLI) calculator is utilized to determine the maximum permissible earth fault loop impedance (Zs) of an electrical circuit.  Calculator Earth Fault Loop Impedance Calculator Uo, Nominal Phase Voltage (V) Circuit Breaker Size (A) Select Circuit Breaker Type Type B Type C Type D Breaker Characteristics: Type B → Ia...
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Electrical Calculators

Distribution Transformer Calculator

Calculator A distribution transformer is one among the most consequential equipment in any power network...
Preventive Maintenance

Capacitor Bank Maintenance Checklist

A capacitor bank is a essential component in an electrical power systems used for...
Electrical How to

Electrical Certificate of Compliance (CoC) and Electrical Safety Certificate

The Electrical Certificate of Compliance (CoC) & Electrical Safety Certificate (ESC) are the official...
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...
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...
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Electrical How to

HT Transformer & DG Works BOQ with Checklist

A Bill of Quantities (BOQ) defines, quantifies & prices every component of work for...
Electrical Calculators

Earth Fault Loop Impedance Calculator

The Earth Fault Loop Impedance (EFLI) calculator is utilized to determine the maximum permissible...
Electrical Calculators

Battery Sizing Calculator

A Battery Size Calculator is an important electrical engineering online calculator tool that assist...
Electrical Calculators

Electrostatic Capacitance Calculator

The Electrostatic Capacitance Calculator is an online calculator tool that enables instant conversion between...