Q-4: 3-phase, 50 Hz, TL 100 km long deliver 20 MW at 0.9 p.f lagging and at 110 KV, the resistance and reactance of the line per phase per km are 0.252 and 0.452 while capacitance admittance is 2.5*10" S/km/phase calculate a- Vs & Is b- Efficiency of T.L.

Q-4: 3-phase, 50 Hz, TL 100 km long deliver 20 MW at 0.9 p.f lagging and at 110 KV, the resistance and reactance of the line per phase per km are 0.252 and 0.452 while capacitance admittance is 2.5*10" S/km/phase calculate a- Vs & Is b- Efficiency of T.L.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.27MCQ: In terms of line-to-line capacitance, the line-to-neutral capacitance of a single-phase transmission...

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Thermistors

A thermistor is a special type of resistor whose resistance is more temperature-dependent than standard resistors. The resistance of the thermistor decreases with increasing temperature. This is the basic principle of thermistors. This allows the thermistor circuit to detect very small temperature changes that cannot be observed with the Resistance temperature detectors (RTDs) or the thermocouples. Since the resistance of a thermistor is temperature dependent, it can be connected to an electrical circuit to measure body temperature. This high sensitivity to temperature changes makes thermistors very useful for accurately controlling and calibrating temperature measurements. In general, resistance increases with increasing temperature in most metals, but thermistors react negatively.

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Q-4: 3-phase, 50 Hz, T.L 100 km long deliver 20 MW at 0.9 p.f lagging and at 110 KV, the
resistance and reactance of the line per phase per km are 0.202 and 0.42 while capacitance
admittance is 2.5*10 S/km/phase calculate
a- Vs & Is
b- Efficiency of T.L.

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