1. A balanced Y load has one phase voltage of VBN = 120/130 V. If the phase sequences is ABC, find the line voltages VAC, VCB, and VBA 2. Find the phase sequence of a three-phase circuit in which two of the phase currents of a

1. A balanced Y load has one phase voltage of VBN = 120/130 V. If the phase sequences is ABC, find the line voltages VAC, VCB, and VBA 2. Find the phase sequence of a three-phase circuit in which two of the phase currents of a

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.23MCQ: In a balanced system, the phasor sum of the line-to-line voltages and the phasor sum of the...

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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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1. A balanced Y load has one phase voltage of VBN = 120/130 V. If the phase sequences is ABC, find
the line voltages VAC, VCB, and VBA
2.
Find the phase sequence of a three-phase circuit in which two of the phase currents of a
balanced A load are IAB = 10L50 A and ICA = 10 L170 A. Also, find the third phase current.

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