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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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Transmission

What is an ACSR Conductor? Explain its Types and Advantages

Table of ContentsWhat is an ACSR Conductor?ACSR Conductor DesignInside and Outside Design of ACSR...
Electrical Procedures

Automatic Transfer Switch (ATS) Testing Procedure

Table of ContentsWhat is an Automatic Transfer Switch?Why is it important to test an...
Electrical Calculators

HV – High Voltage Cable Sizing Calculator

High Voltage Cable Sizing Sizing high voltage cables involves determining the proper parameters for...
Electrical Procedures

Electrical Transformer Installation Method Statement

Electrical Transformer Installation Method Statement
Transformers

Transformer Turns Ratio (TTR) Test

Table of ContentsTransformer Ratio TestTransformer Ratio Test and Phase Displacement MeasurementHow to Conduct the...
Electrical Projects

Wireless DC Motor Speed Control System Using IGBT

Table of ContentsAbstractExisting SystemProposed SystemBlock Diagram Detail Pulse Width ModulationDC MotorAdvantagesApplications Abstract In today's environment, power saving...
Electric Motors

How to Select a Variable Frequency Drive (VFD)?

Table of ContentsSelection of VFDLoad Type for VFDMotor DetailsPower SupplyMethods for Controlling VFDSpeed Reference AlternativesEfficiency...
Transformers

What is Over Fluxing in Power Transformer?

Table of ContentsWhat is Fluxing in Transformers?What is Over-Fluxing?Causes of Over-fluxing in TransformersEffects of...
Switchgear

Explain Air Circuit Breaker (ACB) and their Working Principle

Table of ContentsWhat is an Air Circuit Breaker?Components of ACBConstruction of Air Circuit BreakerAir...
Switchgear

Troubleshooting of Air Circuit Breakers (ACB)

Table of ContentsACB Troubleshooting1). The Breaker is Not Closing2). Breaker is not Tripping - with...
Transmission

Pre Commissioning Test Procedure for High Voltage Cable

Table of ContentsPurposeScopePersonal Protective Equipment (PPE)ResponsibilityWork Activity & DescriptionsTest ProcedureStep-1: Visual & Mechanical Inspection Step-2:...
Electrical Procedures

Ring Main Unit (RMU) Test Procedure

Table of ContentsIntroductionSafety Measures Tools RequiredRelevant Codes & StandardsHV BreakerVisual InspectionContact Resistance TestInsulation Resistance Test            High...
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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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