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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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Electrical Notes & Articles

Power Transformer Datasheet

Table of ContentsSpecific DataGeneral ConditionsDesign DataEnvironmental DataElectrical CharacteristicsControl, Alarms and AccessoriesTransformer ArrangementCable Details Specific Data This...
Electrical Notes & Articles

MCC & PCC Panel Safety Checklist

Table of ContentsObjectiveScopeSafety PPE to useSafety considerations to take when doing an electrical panel...
Protection

Explain about Relay and their Types

Table of ContentsWhat is Relay?Working Principle of RelayConstruction of a RelayTerminals for Relay1). Control...
Utilities

Power System Communication

Table of ContentsCommunication for Power SystemTelecommunicationSCADA System Energy Management System (EMS)Applications of Power System Communications Communication...
Switchgear

Explain the Working Principle of Oil Circuit Breaker (OCB)

Table of ContentsWhat is an Oil Circuit Breaker?Oil Circuit Breaker DiagramConstruction of an Oil...
Switchgear

Switchgear Testing

Table of ContentsWhy Switchgear Testing is done?What is done during Switchgear Testing?Operations Carried Out...
Preventive Maintenance

Preventive Maintenance of HT Panel

Table of ContentsObjectiveScopeAbbreviationsResponsibilityOHS (Occupational Health and Safety) RiskCautions & Special Safety PrecautionsSpecial Personal Safety...
Electrical Notes & Articles

Electrical Preventive Maintenance and Checklist

Table of ContentsWhat is the Basic Electrical Maintenance?What is Preventive Maintenance in Electrical?Why Should...
Switchgear

Site Acceptance Test (SAT) Procedure for MV Switchgear Panel

Table of ContentsPre-Requirements of MV SwitchgearSafety PrecautionsTest EquipmentGeneral InformationMechanical Check and Visual InspectionTest ProcedureStep-1:...
Switchgear

What is Vacuum Circuit Breaker (VCB)? Explain its Working Principle

Table of ContentsWhat is a Vacuum Circuit Breaker (VCB)?Components of VCBContact Materials of VCBWorking...
Electrical Tools

15 Top Electrical Testing Tools

Table of ContentsWhat is the Electrical Testing Tool?Different Electrical Testing Tools1). CT-PT Analyzer2). Relay...
Electrical Interview

Electric Traction Interview Questions and Answers

1). What is Electric Traction? Electric traction refers to the use of electric power in...
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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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