Substation Equipment Archives » Electrical Engineering Hub

Transformers | Electrical Concepts
Transformer Cooling Methods: ONAN, ONAF, OFAF & More
Posted on22/07/202522/07/2025
Transformers are essential components of modern power systems. They handle high…
Read More Transformer Cooling Methods: ONAN, ONAF, OFAF & More
Transformers | Electrical Earthing
Earthing Transformer Working Principle
Posted on15/07/202529/08/2025
Understanding the Earthing Transformer Working Principle The earthing transformer working principle…
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Electrical Testing
Secondary Injection Test Procedure Step by Step
Posted on09/07/202509/07/2025
The Secondary Injection Test procedure is an essential process in electrical…
Read More Secondary Injection Test Procedure Step by Step

Electrical Standards
IEC Standards for High Voltage Equipment Testing
Posted on03/06/202503/06/2025
High voltage equipment is at the core of modern power systems….
Read More IEC Standards for High Voltage Equipment Testing
Transformers | Relays
Differential Relay in Transformer: A Complete Guide
Posted on03/05/202529/07/2025
The differential relay in transformer is a crucial component in modern…
Read More Differential Relay in Transformer: A Complete Guide
Electrical Standards
IEC Standard for Relay Testing: Best Guide
Posted on27/04/202527/04/2025
Testing relays is a critical part of ensuring the safety and…
Read More IEC Standard for Relay Testing: Best Guide

Electrical Concepts | Electrical Testing | Transformers Testing
PI Test of Transformer: Procedure, Results & Acceptance Criteria
Posted on22/04/202522/07/2025
The PI test of transformer is a crucial diagnostic tool used…
Read More PI Test of Transformer: Procedure, Results & Acceptance Criteria

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