. A three-phase voltage regulator is proposed to solve steady-state voltage cont
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Question
. A three-phase voltage regulator is proposed to solve steady-state voltage control problems on a particular feeder. Answer the following: a. Sh ould any other steady-state voltage control technologies be investigated before designing the regulator project? If so, which one(s) and why? b. Would you expect the regulator to experience more operations if it was located (a) on the first half of the feeder (close to the substation) or (b) on the second half of the feeder (near the end of the circuit)? Why? Why is the number of voltage regulator operations of concern? c. 0. Maintenance of LTCs and voltage regulators should be given high priority. Why? (What is the impact of a failure?)Explanation / Answer
A voltage regulator is a circuit or device designed to deliver a constant voltage at its output regardless of changes in load current or supply voltage or both.
a. Yes, other voltage control technologies namely Tap-Switching Voltage Regulator with a multi-shielding transformer, Ferroresonant Voltage Regulators, Electronic Voltage Regulator etc should also be checked before designing the regulator project in order to match up or increase the efficiency of the design project and should solve maximum number of power quality problems keeping the line and load regulation in view.
b. The regulator is expected to face more operations on the second half of the feeder as it is going to face the problem of transmission loss and then the variable loading.
c. Power quality problems are defined as spikes, surges, sags, brownouts, outages, and harmonics. And Voltage Regulators are simple, cost-effective ways to deal with many of these problems. So,the number of operations is often of concern while designing the regulator project.
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