Determine horsepower output at full-load torque, Electrical Engineering

A 500-hp, wye-connected, wound-rotor induction motor, when operated at rated voltage and frequency, develops its rated full-load output at a slip of 0.02; maximum torque of 2 times the full-load torque at a slip of 0.06, with a referred rotor current of 3 times that at full load; and 1.2 times the full-load torque at a slip of 0.2, with a referred rotor current of 4 times that at full load. Neglect rotational and stray-load losses. If the rotor-circuit resistance in all phases is increased to 5 times the original resistance, determine the following:

(a) The slip at which the motor will develop the same full-load torque.

(b) The total rotor-circuit copper loss at full-load torque.

(c) The horsepower output at full-load torque.

(d) The slip at maximum torque.

(e) The rotor current at maximum torque.

(f) The starting torque.

(g) The rotor current at starting.

Posted Date: 6/14/2013 7:14:24 AM | Location : United States







Related Discussions:- Determine horsepower output at full-load torque, Assignment Help, Ask Question on Determine horsepower output at full-load torque, Get Answer, Expert's Help, Determine horsepower output at full-load torque Discussions

Write discussion on Determine horsepower output at full-load torque
Your posts are moderated
Related Questions
Use basic circuit theory to convert the "T" circuit below into the equivalent "π". Hint: Remember to disconnect the voltage source and the load.

which principle is used in d.c motor

please give me the ckt for wein bridge oscillator with 5KHz frequency using transister (with exact values of resistor and capacitor).

Q. WEIGHTED-RESISTOR CONVERTER? Figure shows a 4-bit weighted-resistor D/A converter which includes a reference voltage source, a set of four electronically controlled switches

Checking at Site - Testing of Meter The routine testing of meters should be carried out once in 3 years. Further, surprise checks should be conducted at the consumer's install

Explain multimeter A multimeter, or universal instrument, may be used to measure voltage, current and resistance.

BLOCK DIAGRAM OF DIGITAL CONTROL OF ELECTRIC DRIVES

up-down counter

Q. Explain Standby mode of operation in SPC organization? Standby mode of operation is the simplest of dual processor configuration operations. Generally one processor is activ

Q. Illustrate AC Power Systems? Electric power is indispensable for any modern society. Our use and demand for electric power grows annually at the rate of 2 to 3%; our need ne