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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 Procedures

Phase Sequence Indicator Calibration Procedure

Table of ContentsPurposeScopeSafety PrecautionsReferenceTools RequiredDefinitionsResponsibilitiesCalibration RequirementsCalibration ConditionsGeneral GuidelinesPreparationInitial InspectionConnection & Setup6 Steps Calibration ProcedureVerificationDocumentationCompletionRegular...
Electrical Notes & Articles

Transformer Erection Checklist

Table of ContentsTransformer Pre-Installation ChecklistEquipment & ToolsSafety MeasuresTransformer Arrival & InspectionPre-Installation TestsTransformer ErectionTestingCommissioningDocumentation Maintenance and...
Utilities

SOP of Meter Testing (On-Site)

Table of ContentsPlanningInstrumentationVerifying Metering System AccuracyTest InterpretationInstallation Checkup The periodic testing of consumer metering installations...
Electrical Procedures

FAT Procedure for Low Voltage (LV) Switchboard

Table of ContentsPurposeWorking LocationEquipment to be UsedFAT ProcedureVisual Inspection TestInsulation TestHigh Voltage Injection TestPrimary...
Electrical Calculators

Busbar Current Calculator

The electrical power system consists of many incoming & outgoing feeder connections, for which busbars...
Electrical Interview

Electrical Design Engineer Interview Questions

1). What is the relevance of the Power Factor in electric systems? Power factor is...
Batteries

Battery Charger Method Statement

Table of ContentsPurposeBattery Supply Reference DocumentScopeTerminologyEquipment under TestTest Equipment RequiredPreliminary CheckElectrical ChecksSystem CheckMechanical CheckElectrical Function...
Electrical Calculators

Armature Voltage Calculator for DC Motor

The armature voltage of an electrical motor can be found using the armature voltage...
Protection

Isolator Pre-Commissioning Test Procedure

Table of ContentsPurposeScopeResponsibilityWork Activity Equipment RequiredTest ProcedureInsulation Resistance (IR) Test for IsolatorsMotor Winding IR Test...
Electrical Procedures

DC Panel Test Procedure

Table of ContentsPurposeReference ScopeTerminologyEquipment RequiredEquipment under TestPreliminary ChecksElectrical ChecksDC Distribution Circuit Breaker Test and InspectionMechanical...
Electrical Procedures

Transformer Site Testing and Pre-Commissioning Method Statement

Table of ContentsPurposeTools RequiredSafety Tools Transformer Testing and Commissioning ProcedureTesting PreparationMethod of Testing of TransformersPre-Commissioning...
Drives

Automatic Slip Regulator Starter (ASR Starter)

Table of ContentsWhat is an Automatic Slip Regulator Starter (ASR Starter)?Components of an Automatic...
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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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