PowerTel

Introduction of an electrical substation

Electricity is an indispensable and important resource in our daily life, and electrical substation, as an important component of the power system, undertake the important task of power transmission and distribution. in this post, we will comprehensively analyze the definition, classification, and role of electrical substations. What is an electrical substion An electrical substation refers […]

Introduction of an electrical substation Read More »

what is transformer inrush current

When a power or a distribution transformer is first put into operation, a phenomenon called excitation inrush current occurrings. Although this inrush current is not so destructive as a short circuit current, the duration of excitation inrush currents is in several seconds, compared with fault currents. The frequency of excitation inrush current is much higher than

what is transformer inrush current Read More »

Power transformer differential protection

Power transformer differential protection is the main protection for powers transformers, using the principle of circulating current. Differential protection can quickly and selectively activate short-circuit protection in the event of phase to phase short circuit faults in transformer windings, outgoing lines, and single-phase turns.   The basic requirements for transformer differential protection are as follows:

Power transformer differential protection Read More »

Scroll to Top