The polarity test of a single phase transformer is a standard electrical test performed during transformer commissioning, installation, and maintenance. […]
High-voltage electrical equipment such as power cables, transformers, switchgear, and rotating machines relies on insulation to keep electrical current flowing
A Hi Pot test, short for High Potential test, is one of the most widely used methods to verify the
A 3-way switch allows you to control a single light fixture from two different locations. This is one of the
Power transformers are among the most expensive and valuable assets in any electrical power system. Protecting them from thermal damage
The B-H curve is one of the most fundamental concepts in electromagnetism and magnetic circuit design. Every electrical engineer encounters
Every electrical installation depends on a properly functioning earthing system to protect human life and equipment from fault currents. A
The GE Multilin 845 is a widely used numerical relay designed for the protection of two-winding and three-winding power transformers.
Protection relays are the guardians of every electrical power system. They detect abnormal conditions such as overcurrent, earth faults, and
The vector group test is one of the most important pre-commissioning tests performed on three-phase transformers. This test verifies the
Transformer oil leaks are one of the most common yet dangerous problems faced in electrical power systems. A transformer relies
The EMF equation of a transformer is one of the most fundamental formulas in electrical engineering. It defines the relationship
Power transformers are among the most expensive and important pieces of equipment in any electrical power system. Protecting them from
Selecting the right MCB (Miniature Circuit Breaker) for a 25-litre geyser is one of the most common questions homeowners and
Winding resistance measurement is a fundamental diagnostic test performed on power transformers during commissioning and routine maintenance. This test assesses
If you have ever stood near a power transformer or a distribution substation, you have probably heard a low-frequency humming
Power transformers are among the most expensive and important assets in any electrical power system. During transportation, installation, and service,
Generator protection is one of the most important topics in power system engineering. A generator is a high-value machine, and
Every electrical circuit needs a source of energy to function. Voltage sources and current sources are the two fundamental building
Transformers are among the most expensive and important assets in any power system. They operate continuously under demanding conditions, and
Faraday’s Law of Electromagnetic Induction is one of the most foundational principles in electrical engineering and physics. Michael Faraday discovered
Power systems are designed to operate under balanced and stable conditions. However, faults occur in electrical networks due to insulation
A Star Delta Starter is one of the most widely used reduced voltage starting methods for three-phase induction motors in
Power transformers rank among the most expensive and valuable pieces of equipment in any electrical power system. A single large
Every transformer installed in a power system has an inherent opposition to current flow, known as transformer impedance. This single
Magnetic flux is one of the foundational concepts in electrical engineering and physics. It describes the total magnetic field passing
Every transformer experiences a change in its secondary terminal voltage as load increases from zero to its rated value. This
Overcurrent protection is the foundation of power system protection engineering. Every electrical network needs a well-coordinated relay protection scheme to
Every transformer that enters service in a power system must undergo specific tests to verify its performance characteristics. Among these
Undervoltage protection plays a major role in keeping electrical equipment safe from damage caused by low voltage conditions. Motors, generators,
