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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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Electric Motors

Why does a Motor draw High Current during Starting?

When an electric motor is switched on, it draws a current far larger than the current it draws at rated load and rated speed.  Table of ContentsFundamental Cause: Absence of Back EMFInduction Motor Starting ConditionMotor Starting Current MethodsWhy High Current, Low Torque?Effects of High Starting...
Electrical Procedures

Method Statement for Testing & Commissioning of Substation Equipment

This post analyzes the method statement for testing and commissioning of substation equipment.  Table of ContentsInstrument TransformersLVAC and Medium Voltage Switchgear132 kV GISMV and HV CablesCapacitor BankPower TransformerDC System and ProtectionKey Acceptance Criteria It covers  Current and voltage transformers,  LVAC,  Medium voltage and 132 kV gas insulated switchgear (GIS),  MV...
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Software

How does a Simple PLC Control Loop actually work?

A programmable logic controller (PLC) is an industrial control system that monitors field conditions,...
Electrical Calculators

Plate / Pipe Earthing & Earthing Strip Size Calculator

An effective earthing system provides a controlled path for fault current and helps to...
Preventive Maintenance

How to Test PLC Digital Inputs and Outputs?

Programmable Logic Controller (PLC) Programmable Logic Controller (PLC) digital inputs and outputs form the interface...
Software

ETAP vs DIgSILENT PowerFactory

Choosing the right power system analysis software strongly influences how efficiently electrical networks are...
Electrical Notes & Articles

Capacitor Chart for Power Factor Correction

A capacitor chart is a practical engineering reference utilized to estimate the reactive-power compensation...
Software

Free Online Electrical Diagram Tools

Electrical engineers, technicians, designers and technical content creators regularly require to prepare clear and...
Electric Motors

PLC-Based Forward/Reverse Motor Control System (3-Phase Induction Motor)

Forward/reverse control of a three-phase induction motor is one of the most common requirements...
Electrical Interview

Electrical QA/QC Inspector Interview Question Answers

1). What is the test for an electrical cable? The tests performed on an electrical...
Electrical Calculators

Cable Derating Factor Calculator

Every electrical cable has an ampacity, disclosed by the manufacturer (or) included in cable selection...
Switchgear

Circuit Breaker Timing Test

When commissioning and maintaining high voltage circuit breakers, engineers undertake a Contact Resistance Measurement...
Electrical Procedures

33 kV Transformer Pole Installation: Circuit Diagram, Components and Procedure

A 33 kV pole-mounted transformer installation is a medium-voltage (MV) step down arrangement mounted...
Transformers

How to Calibrate Transformer Mechanical Protection Devices?

Power transformers are among the most critical and expensive assets in any electrical power...
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Latest articles

Electric Motors

Why does a Motor draw High Current during Starting?

When an electric motor is switched on, it draws a current far larger than...
Electrical Procedures

Method Statement for Testing & Commissioning of Substation Equipment

This post analyzes the method statement for testing and commissioning of substation equipment.  Table of...
Software

How does a Simple PLC Control Loop actually work?

A programmable logic controller (PLC) is an industrial control system that monitors field conditions,...
Electrical Calculators

Plate / Pipe Earthing & Earthing Strip Size Calculator

An effective earthing system provides a controlled path for fault current and helps to...