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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 Calculators

Breaker Size Calculator

Breaker size calculator is a online calculator tool (electrical calculator) that may be used...
Switchgear

7 Basic Guidelines for Selection of a Circuit Breaker

Table of ContentsSelection of Circuit BreakerGuideline-1: Voltage RatingGuideline-2: FrequencyGuideline-3: Maximum Interrupting CapacityGuideline-4: Current RatingGuideline-5:...
Switchgear

Circuit Breaker Maintenance Step-By-Step Procedure & Checklist

Table of ContentsWhy is Circuit Breaker maintenance necessary?Circuit Breaker maintenance ChecklistCircuit Breaker maintenance ScheduleWhat...
Electrical Interview

50 Top Synchronous Motor Interview Questions

1. What is a synchronous motor, & how is it different from other types? A synchronous...
Protection

What is Earthing? Explain its Procedure and their Advantages

Table of ContentsWhat is Earthing?How is Earthing done?Earthing System ComponentsEarthing ProcedureStep-by-Step Procedure for Earthing...
Switchgear

What is a Circuit Breaker and how does it work?

Table of ContentsWhat is a Circuit Breaker?Working Principle of Circuit Breaker5 Fundamental Components of a Circuit...
Switchgear

What is a Cam Switch? Explain its Functions, Types, and Applications

Table of ContentsWhat is Cam Switch?Working Principle of Cam SwitchCam Switch Wiring DiagramCam Switch Types1)....
Electrical Procedures

Procedure for Metal-Enclosed Busway Site Acceptance Testing

Table of ContentsPURPOSESCOPEDEFINITIONSREFERENCE STANDARDS & CODESRESPONSIBILITIESTESTING PROCEDURE STEP-1: VISUAL & MECHANICAL CHECKSTEP-2: CONTACT RESISTANCE TESTSTEP-3:...
Protection

Busbar Protection Schemes

Table of ContentsWhat is Busbar?What is the Purpose of a Busbar? What is Busbar Protection?How...
Electrical How to

Essential Checklist: Conducting Pre-Commissioning Tests for Transformers on Site

Table of ContentsWhy are Pre-Commissioning Tests Performed?What are the Tests before Commissioning a Transformer?Importance...
Software

Comparison of PLC vs RTU: Key Differences

Table of ContentsWhat is PLC?Advantages of PLCDisadvantages of PLCWhat is RTU?Advantages of RTUDisadvantages of RTUPLC...
Electrical Tools

Portable Power Tools Inspection Checklist

Table of ContentsInspection Checklist for Portable Power ToolsRegular Inspection and its ImportancePortable Electrical Power...
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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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