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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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Electrical Procedures

Standard Operating Procedure (SOP) for Megger Testing of HT Transformer

Megger testing is a crucial check conducted on high-tension (HT) transformers for measuring the...
Generators

How to Perform Accurate Backup Generator Calibration?

Generator Electrical generators, which are also known as dynamos, are machines that convert mechanical energy...
Switchgear

VCB Testing Procedure

Scope This test procedure explains the steps involved in testing and commissioning the Vacuum Circuit...
Software

What are the Common Input and Output Devices used in PLC Systems?

A PLC is a microprocessor-based digital electronic device that stores user-defined instructions in programmable non-volatile...
Transformers

How to Test the DC Resistance of Transformer Windings?

Testing the DC resistance of transformer windings is an essential step in ensuring transformer...
Excel Tools

Inverse Defined Minimum Time (IDMT) Calculator

Calculator Inverse Defined Minimum Time CalculatorDownload An Inverse Defined Minimum Time (IDMT) Calculator is an online...
Transmission

Essential Oil Immersed Shunt Reactors Commissioning Checklist

Commissioning oil-immersed shunt reactors is essential for ensuring consistent operation in power systems.  These reactors...
Electrical Procedures

Step-by-Step Guide to Motor Overhauling: A Complete Procedure

Motor overhauling is the process of restoring or repairing defective electric motors to their...
Electric Motors

Electrical Motor Troubleshooting Chart

Electrical motors are essential components in many industrial & commercial applications, & like any machinery, they...
Software

PLC Counters: Exploring Up Counter and Down Counter Types

What is a PLC Counter? A counter is a PLC instruction that increments (counts up)...
Uncategorized

Knee Point Voltage Calculation for HT Motor

To protect High Tension (HT) motors, the knee point voltage of the current transformer...
Basic Electrical

ASTM Standards

What is ASTM? ASTM - American Society of Testing and Materials American Society for Testing and...
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Latest articles

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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