Disconnect switches establish isolation points to enable equipment maintenance. They are installed on both sides of the circuit breaker, high-side of the transformer, and on the line exit. Switches cannot and should not be used to interrupt load current or fault current. A switch operation takes place after the circuit is de-energized.
Disconnect Switch: Learn the Purpose, Cost, and Lead Time to Procure Read More »
A circuit breaker interrupts the power flow and contain the arcing within its chamber and extinguish it.
Circuit Breaker: Learn the Purpose, Cost, and Lead Time to Procure Read More »
Quick facts about power transformer – purpose, cost, and lead time to procure one.
Power Transformer: Learn the Purpose, Cost, and Lead Time to Procure Read More »
What does it take to design a masterpiece of a substation? Quite a bit, honestly. In this article, I will share 18 design studies or calculations that will set you up to create a beautiful substation. Here’s the list.
One problem that is pervasive in the power grid and not well understood is called the Transient Recovery Voltage (TRV). When a short-circuit due to a fault in high voltage or medium voltage system is switched-out by a circuit breaker, the voltage across the breaker poles rapidly increases; as high as twice the operating voltage.
Transient Recovery Voltage and Its Effect on a Circuit Breaker Read More »
