(b) A three-phase, 30 kW, 50 Hz, 380 V, SCIM motor draws a line current of 60 amperes when it is full-loaded. DC test, open-circuit test and short-circuit test carried out at the motor stator side give the following results: DC test Open-circuit test Short-circuit test Line Current 6 A 10 A 60 A Line Voltage Wattmeter reading 2 V 380 V 50 V 900 W 3000 W -- Assume that AC and DC resistances of the motor are the same. Estimate: (i) The per-phase equivalent stator and rotor resistances of the motor; (ii) The motor efficiency at the full load condition; and (iii) The motor maximum efficiency and the loading level at which the maximum efficiency occurs.

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Analog to Digital Converters

The analog-to-digital converter (ADC) allows circuits controlled by microprocessors, Arduinos, Raspberry Pi, and various reasonable digital circuits to be connected to the real world. In the real world, analog signals have a continuous stream of information from a variety of sources and sensors capable of measuring sound, light, temperature, or movement, in addition to the many digital systems that interact with their environment by measuring analog signals from those transducers.