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Electrical Hub

Power Systems

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 voltages and large power transfers across vast distances. But with great power comes great heat. Managing this heat is…

Read More Transformer Cooling Methods: ONAN, ONAF, OFAF & MoreContinue

Relays | Transformers

Differential Protection of Transformer: Working, Settings & Calculation

Posted on21/07/202523/07/2025

Understanding Differential Protection of Transformer Differential protection of transformer is a crucial method used to detect internal faults in power transformers. It plays a vital role in the overall safety…

Read More Differential Protection of Transformer: Working, Settings & CalculationContinue

Electrical Standards

IEC Standard for Earthing Transformer

Posted on15/07/202515/07/2025

Understanding the IEC Standard for Earthing Transformer The IEC standard for earthing transformer outlines global requirements for the design, construction, testing, and performance of earthing transformers. These transformers are used…

Read More IEC Standard for Earthing TransformerContinue

Transformers

Dry Type Transformer Working Principle

Posted on14/07/202515/07/2025

Understanding the Dry Type Transformer Working Principle The dry type transformer working principle is based on the fundamental laws of electromagnetic induction. Unlike oil-filled transformers, dry type transformers use air…

Read More Dry Type Transformer Working PrincipleContinue

Electrical Standards

IEC Standard for Basic Insulation Level

Posted on14/07/202514/07/2025

Understanding the IEC Standard for Basic Insulation Level The IEC standard for basic insulation level (BIL) plays a key role in high-voltage equipment design. It ensures that electrical systems can…

Read More IEC Standard for Basic Insulation LevelContinue

Electrical Standards

IEC Standard for Busbar Clearance

Posted on14/07/202514/07/2025

Understanding the IEC Standard for Busbar Clearance The IEC standard for busbar clearance plays a critical role in the design and safety of electrical panels and power distribution systems. It…

Read More IEC Standard for Busbar ClearanceContinue

Electrical Standards

IEC Standard for Busbar Contact Resistance

Posted on13/07/202513/07/2025

Understanding the IEC Standard for Busbar Contact Resistance The IEC standard for busbar contact resistance plays a vital role in ensuring electrical safety, performance, and longevity of electrical systems. In…

Read More IEC Standard for Busbar Contact ResistanceContinue

Electrical Standards

IEC Standard for Lightning Protection: A Complete Technical Guide

Posted on09/07/202509/07/2025

Lightning is one of the most dangerous natural phenomena that can damage buildings, electrical systems, and human life. To address this threat, international standards have been developed to ensure safety…

Read More IEC Standard for Lightning Protection: A Complete Technical GuideContinue

Electrical Concepts | Electrical Testing

Primary Injection Test vs Secondary Injection Test

Posted on09/07/202509/07/2025

Testing of protection systems is a vital part of electrical power networks. Every circuit breaker, relay, and protection device must work reliably to prevent faults and ensure safety. In the…

Read More Primary Injection Test vs Secondary Injection TestContinue

Relays | Transformers

Overcurrent Protection of Transformer: A Complete Technical Guide

Posted on19/06/202519/06/2025

Transformers are vital assets in electrical power systems. Their uninterrupted operation ensures smooth power distribution in industrial, commercial, and residential networks. However, transformers are vulnerable to faults, and one of…

Read More Overcurrent Protection of Transformer: A Complete Technical GuideContinue

Electrical Standards

IEC Standards for Industrial Switchgear and Controlgear

Posted on30/05/202530/05/2025

Industrial switchgear and controlgear are critical components in modern electrical systems. They ensure safety, reliability, and efficient control of electrical power in industrial environments. Understanding the IEC standards governing these…

Read More IEC Standards for Industrial Switchgear and ControlgearContinue

Electrical Standards

How IEC Standards Improve Electrical Safety and System Reliability

Posted on29/05/202529/05/2025

In today’s modern world, electrical systems power everything from homes to hospitals and industries. With growing demand and complexity, safety and reliability are no longer optional—they are essential. This is…

Read More How IEC Standards Improve Electrical Safety and System ReliabilityContinue

Guest Posting

Top 7 Electrical Engineering Topics You Should Write About in 2025

Posted on12/05/202512/05/2025

Electrical engineering is evolving faster than ever. With new technologies emerging, there’s no shortage of innovative topics to cover. If you’re looking to submit guest post electrical or planning to…

Read More Top 7 Electrical Engineering Topics You Should Write About in 2025Continue

Relays | Transformers

Differential Relay in Transformer: A Complete Guide

Posted on03/05/202503/05/2025

The differential relay in transformer is a crucial component in modern electrical systems. It protects the transformer by detecting internal faults like winding short circuits or insulation failures. This relay…

Read More Differential Relay in Transformer: A Complete GuideContinue

Pumps and Motors | Motor Control Panel (MCC)

Overload Setting for 3-Phase Motor

Posted on03/05/202509/07/2025

Setting the correct overload setting for 3-phase motor is crucial. It protects your motor from damage due to excessive current. When a motor runs under too much load, it can…

Read More Overload Setting for 3-Phase MotorContinue

Electrical Calculations | Electrical Concepts

How to Determine Electrical Service Size

Posted on30/04/202530/04/2025

Understanding how to determine electrical service size is crucial for residential, commercial, and industrial electrical systems. Electrical service size impacts safety, efficiency, and compliance with codes like the National Electrical…

Read More How to Determine Electrical Service SizeContinue

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 reliability of electrical systems. To maintain high standards, engineers worldwide refer to the IEC standard for relay testing. This…

Read More IEC Standard for Relay Testing: Best GuideContinue

Electrical Standards

What is the IEC Standard for Panel Testing

Posted on25/04/202525/04/2025

Panel testing is a vital process in electrical engineering. It ensures the safety, functionality, and durability of control panels, switchgear, and distribution boards. But what is the IEC standard for…

Read More What is the IEC Standard for Panel TestingContinue

Electrical Standards

IEC Standard for Protection Relays

Posted on25/04/202518/06/2025

The IEC standard for protection relays plays a vital role in modern electrical power systems. Protection relays are essential devices used to detect abnormal conditions in electrical circuits. These conditions…

Read More IEC Standard for Protection RelaysContinue

Control and Utilization | Electrical Bus Bar | Electrical Concepts

Busway vs Bus Duct: All You Need to Know

Posted on25/04/202525/04/2025

When comparing busway vs bus duct, it’s essential to understand both systems in terms of their function, construction, installation, and application. These two systems are used for power distribution in…

Read More Busway vs Bus Duct: All You Need to KnowContinue

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