List two industrial applications of the synchronous motor.
What will be an ideal response?
• The three-phase synchronous motor is used when a prime mover having a constant speed from a no-load condition to full load is required, such as fans, air compressors, and pumps.
• The synchronous motor is used in some industrial applications to drive a mechanical load and also to correct the power factor.
• When the synchronous motor is used only to correct the power factor and does not drive any mechanical load, it serves the same purpose as a bank of capacitors used for power factor correction. Therefore, in such an installation the motor is called a synchronous capacitor.
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List the scale(s) shown on the drawing.
Review drawing number 522923A0A and then answer the following questions.
_________ protection prevents competitors from selling related products while the company realizes a return on its research investment
Fill in the blank(s) with correct word
How should you determine the heat anticipator setting on the room thermostat using a package sequencer?
What will be an ideal response?
Tankless water heaters:
A. have higher initial costs. B. have a lower BTU per hour rating. C. have lower energy input rates. D. have less complex controls.