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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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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 &...
Basic Electrical

Switch Types & their Working Principle

Table of ContentsWhat is Switch?Characteristics of SwitchesMechanical SwitchesTypes of Mechanical Switches1). SPST - Single Pole Single Throw Switch2). SPDT - Single Pole Double Throw Switch3). DPST - Double Pole Single Throw Switch4). DPDT - Double Pole Double Throw Switch5). Pressure Switch6). Toggle Switch7). Limit...
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Protection

LockOut/TagOut (LOTO) Inspection Checklist

Lockout is the recommended method to disconnect machinery or equipment from power sources. All...
Electrical Interview

Electro Technical Officer (ETO) Interview Questions – Part 1

1). What is an Induction Motor and how does it work? An induction motor is...
Drives

Static Kramer Drive

What is Static Kramer Drive? The technique of controlling the speed of an induction motor...
Electric Motors

Four Quadrant Operation of DC Motor

What is Four Quadrant Operation of DC Motor? Four Quadrant Operation of any drives or...
Electric Motors

Standard Maintenance Procedure (SMP) of LT Motor

A Standard Maintenance Procedure (SMP) helps to perform maintenance tasks. Industry SMPs must be accurate...
Transformers

Oil Transformer Site Test Procedure

Transformers use mutual induction to transfer electrical energy between circuits without connection.  Table of ContentsTransformer...
Electrical Calculators

Capacitance to Charge Conversion Calculator

Calculator How to Calculate Electric Charge? Coulombs are the units of measurement for electric charge, which...
Electrical Procedures

HT Switchgear Commissioning Procedure

Table of ContentsObjectiveProposalEquipment RequiredSafety PrecautionsEmergency ProcedureCommissioning ProcedureCompletion AttachmentsApplicable Standard Objective To assess the charging capacity of the...
Protection

UPS Commissioning and Testing Certificate

UPS Commissioning and Testing Certificate  This certificate is a detailed guide to checking out and testing an...
Electrical Procedures

Gas Insulated Substation (GIS) Method Statement

Scope GIS AC Voltage Withstand Test - The test procedure entails applying voltage in increasing...
Basic Electrical

What is an Electrical Load? Explain its Types

What is an Electrical Load? An electrical load is a device (or) electrical component that absorbs...
Basic Electrical

Automatic Voltage Regulator (AVR) Inspection Checklist

Automatic Voltage Regulator (AVR) The Automatic Voltage Regulator (AVR) regulates the excitation current to keep...
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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...
Switchgear

RCD (Residual Current Device) Testing Procedure

What is an RCD? RCD - Residual Current Device A Residual Current Device (RCD) is a...
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