Question

A CSIR compressor with a current relay draws LRA when it tries to start, then trips on internal overload when trying to start. Test the start capacitor and get a reading of 287 MFD. The range of the capacitor is 210-340 MFD. Test the coil on the potential relay and get a readable resistance. Test terminals 1

a. The start capacitor is within the acceptable range.

b. The internal overload is functioning correctly.

c. The potential relay is faulty.

d. The current relay is functioning correctly.

Answer 1

The start capacitor is within the acceptable range, the internal overload is functioning correctly, the potential relay is faulty, and the current relay is functioning correctly.

Step-by-step explanation:

Based on the given information, we can determine the following:

a. The start capacitor is within the acceptable range because its reading of 287 MFD falls within the range of 210-340 MFD.

b. The internal overload is functioning correctly because it is tripping when the compressor tries to start.

c. The potential relay is faulty because the coil on the potential relay is not providing a readable resistance.

d. The current relay is functioning correctly as it draws LRA (Locked Rotor Amps) when the compressor tries to start.

An RLC series circuit has a 200Ω resistor and a 25.0 mH inductor. At 8000 Hz, the phase angle is 45.0°. (a) What is the impedance? (b) Find the circuit's capacitance. (c) If Vrms = 408 V is applied, what is the average power supplied?

This problem involves calculating the parameters of an RLC circuit such as impedance, capacitance, and power, based on given resistances, inductance, frequency, phase angle, and rms voltage.