What are some advantages of three-wire control circuits?
What will be an ideal response?
Three-wire control is used to a much greater extent throughout the industry than two-wire control because of its flexibility. Pilot control devices such as push buttons, float switches, and limit switches can be mounted in remote locations, whereas the motor starter can be located close to the motor it controls or in a control cabinet with other control components. Another advantage of three-wire control circuits is that, in the event of a power failure, they will not restart automatically when power is restored. This can be a major safety issue in many instances.
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What is a stringer in a stair?
What will be an ideal response?
In _____________________, the plant parts are merely pulled apart because the plant naturally separates the parts for the production of the new plants
Fill in the blank(s) with correct word
Which type of CV joint transfers energy using six balls enclosed in cages to allow movement?
A) Tripod B) Cardan C) Rzeppa D) None of these
Match the symptom with all possible causes. Note: The choices can be used more than once.
A. refrigerant overcharge B. refrigerant undercharge C. blocked/dirty filter D. non-condensable gas in system E. defective condenser fan motor F. defective evaporator fan motor G. improper system balancing H. dirty condenser coil I. J. K.