Learn the details that go into designing a substation.
Short-circuit faults involving ground produce high fault current magnitude especially when the transformer’s neutral is solidly grounded. Why?
Resistor vs. Reactor – Which Transformer Neutral Grounding Method Would You Choose? Read More »
Installing medium voltage power cables underground comes with its own set of challenges. From an engineering standpoint, there are several factors one needs to consider before installing the cable. The most overlooked if not a well-understood factor is the type of power cable that’s required for the application and when to ground the cable’s neutral
Power Cable Neutral and System Grounding Read More »
Understanding a breaker scheme is important if you plan on designing a substation. Quite often, it is overwhelming to make sense of the entire scheme at a glance. The figure below depicting a circuit breaker scheme will be used to explain various elements of the PCB’s design and its control.
Power Circuit Breaker – Operation and Control Scheme Read More »
The maximum load in kVA the transformers can supply (combined) without overloading any one , is determined by the transformers impedance. They load up inversely proportional to their impedance.
Determine How To Load Two Paralleled Transformers Read More »
Any relay that receives CT input, be it from the breaker bushing, transformer bushing, or a stand-alone CT bushing – needs to have its neutral circuit grounded. Grounding shall be done at only one location along the entire length of the circuit.
Grounding And Shielding Cables – Best Practices In Wiring Equipment In A Substation Read More »
