Power System Archive

SJEC Corporation

SJEC Corporation (hereinafter mentioned as SJEC), founded in 1992 and located within the China-Singapore ecological hub of Suzhou industrial park, is a world group company which is specialized in elevator, escalator, parking equipment, precision die casting, CNC numerical control machine, energy-saving motor etc. The registered capital of SJEC is CNY 1 ...Read More

Transformer MCQs

Transformers are the device which is capable of receiving AC power at one voltage and delivering it at another voltage. In this way  transformer help in achieve better transmission efficiency, while transferring the power over longer distances with high voltages,In this article include transformer MCQs ...Read More

What is an insulator?

What is an insulator? It is a material which cannot conduct electrical current. It have high resistivity and low conductivity. Atom of the ins have tightly bound electron and therefore cannot move throughout of material. Due to the electrons are static and not freely ...Read More

What is Skin effect?

What is Skin effect?The distribution of current over the cross section of the conductor is uniform in DC only. In alternating current flow through a conductor does not distribute uniformly but it will concentrate near the surface of the conductor. In fact, in AC ...Read More

What is Conductor?

What is Conductor?Conductor is one of the important item is in a Transmission and distribution system of electric power. The cost of the conductor material accounts for a major part of the total cost .So proper choice of conductive material and size of the ...Read More

What is Full form of PLC

What is Full form of PLC ?PLC abbreviated Programmable Logic Controller. In this article we will discuss about basics of Programmable logic controller,the most essential component of industrial automation. Full form of PLC is programmable logic controller and it is a special purpose computer ...Read More