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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 Interview

Power Electronics Interview Questions

1). What is a Power Amplifier? A power amplifier amplifies weak signal until it has enough power to drive an output device, such as a loudspeaker. 2). What are the Characteristics of a Power Amplifier? Impedance matching to provide maximum power to load. Power transistors are required to tolerate...
Transformers

Vector Group of Transformer

The Vector Group of a transformer is an essential parameter that determines the phase difference and wire configuration of the transformer.  Table of ContentsWhat is Vector Group of Transformer?Phase Displacement between HV & LV WindingsPhase Shift of TransformerWhy is Vector Group Important?Common Vector Groups &...
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Electric Motors

Three-Phase Motor Testing Procedure

Table of ContentsWhat are Three Phase (3-Phase) Systems?Three Phase Motor TestThree-phase Motor Test Connection...
Transformers

Transformer Faults and Transformer Protection Schemes

Table of ContentsWhat are Transformer Faults?Cause of the Transformer FaultsTypes of Transformer FaultsWhat is the...
Transmission

What is the Corona Effect in Transmission Lines?

Table of ContentsWhat is Corona Discharge? Corona Effect in Transmission LinesWhat is the Corona Effect?What...
Software

Basic Architecture of a PLC

Table of ContentsPLC StructureHardwareSoftwareTypes of PLC ArchitectureFixed PLC Type ArchitectureModular PLC Type ArchitectureDistributed PLC...
Transmission

Electrical Substation Design: An Introduction

Table of ContentsSubstation Planning CriteriaSub-station System RequirementsNomenclatureGeneralSub-Station Design Criteria & StudiesSubstation Arrangement LayoutSubstation and Switching...
Transmission

Electrical Insulator Testing & Insulator Failure Causes

Table of ContentsWhat is Insulator Failure?Causes of the Insulator FailureCracking of InsulatorDefective Insulation MaterialPorosity in...
Protection

Describe the purpose and method of Cable Testing

Table of ContentsCable TestingWhy is it required to Test Cables?What is carried out during Cable...
Electrical Calculators

VT Ratio Calculator

What is VT Ratio? The VT Ratio (also known as the Voltage Transform Ratio) is...
Protection

Explain the Function & Testing of a Neutral Grounding Resistor (NGR)

Table of ContentsWhat is a Neutral Grounding Resistor (NGR)?Working Principle of Neutral Grounding ResistorHow...
Software

10 Steps to Design a PLC System

Table of ContentsWhat is a Programmable Logic Controller (PLC)?Why do we need a PLC? 10...
Electrical Procedures

Capacitor Bank Testing Procedure

Table of ContentsWhat is the purpose of Capacitor Bank?Why is testing done on Capacitor...
Electrical Procedures

Potential Transformer (PT) Testing Procedure

Table of ContentsWhat is a Potential Transformer or Voltage Transformer (PT/VT)?Potential Transformer (PT) Testing1)....
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Electrical Interview

Power Electronics Interview Questions

1). What is a Power Amplifier? A power amplifier amplifies weak signal until it has...
Transformers

Vector Group of Transformer

The Vector Group of a transformer is an essential parameter that determines the phase...
Basic Electrical

Switch Types & their Working Principle

Table of ContentsWhat is Switch?Characteristics of SwitchesMechanical SwitchesTypes of Mechanical Switches1). SPST - Single...
Batteries

Battery Testing Procedure

Battery Testing Battery testing comprises measuring the voltage, capacity, & other parameters of the battery with the...
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