An electric power system is divided into several zones of protection. Each zone of protection, contains one...
In an Air Circuit Breaker (ACB), both undervoltage release (UVR) and shunt (open) release are used for...
Transformer Tan Delta Test The Transformer Tan Delta Test (often called the Tan Delta Test or Power...
Testing Equipment:- 1. Testrano 600 Omicron 2. CP TD1 Omicron Principle of Tan Delta Test:- When a...
Wire 1. *Single conductor*: A wire consists of a single conductor, typically made of copper or aluminum....
For a continuously running VFD (Variable-frequency Drive), the operating status can be visually checked from the outside....
Do all protections cause the transformer to trip on both sides? For distribution transformers used in residential...
A. Magnetic pickup sensor. B. Control valve C. RTD D. LVDT The correct answer is B. Control...
To find the short time rating (STR) of all equipment’s, (Transformers, cables, Transmission lines, generator, motor, circuit...
Current transformers (CTs) are key components in electrical measurement and monitoring systems. But how do they work?...
1- Alternator : This is the device that converts mechanical energy into electrical energy. It’s located on...
PWM (Pulse Width Modulation):- Cost: Low cost.Efficiency: 70%-80%. Usage: Suitable for small systems with a low voltage...
ACB = Air Circuit Breaker VCB = Vacuum Circuit Breaker MCB = Miniature Circuit Breaker MCCB =...
Method 1:- For a 66kV system:- * Phase-to-Neutral Voltage: 66kV/v3 = 38.1kV * Peak Voltage: v2 x...
Active vs. Passive Rectifiers Rectifiers play a crucial role in converting AC to DC, making them essential...
