Example:An overcurrent relay set to operate at 8A is connected to a multi ratio currenttransformer (whose excitation curve is given in Figure 2 below) with CT ratio=100:5, Zs = 0.082 ? and ZB = 0.8 ?.(a) What is the minimum primary currentat which the relay will operate?(b) Will the relay detect a 180A faultcurrent on the primary side?(c) Determine whether or not the CT willsaturate when the relay current is 8A.Compute the percentage CT error.(d) What is the CT knee voltage point
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Protection Relay for undervoltage, overvoltage, undercurrent, overcurrent A protection relay specifically designed to monitor undervoltage, overvoltage, undercurrent, and overcurrent conditions in electrical systems is commonly referred to as a "multi-function" or "comprehensive" protection relay. This type of relay combines multiple protective functions into a single device, providing comprehensive protection for the electrical system. CNC Electric can just be your trustworthy brand for busines
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