What is the relationship between the rotor bars of a squirrel-cage motor and the starting current?
What will be an ideal response?
If the nameplate lists code letters that range from A to V, they indicate the type of rotor bars used when the rotor was made. Different types of bars are used to make motors designed for different applications. The type of bar largely determines the locked-rotor current of the motor. The locked-rotor current of the motor is used to determine the maximum starting current. NEC Table 430.7(B) lists the different code letters and gives the locked-rotor kilovolt-amperes per horsepower.
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La función del calentador de aire es _____.
a. mantener el combustible caliente b. precalentar el aire de combustión c. calentar la central eléctrica d. calentar el humo para la chimenea
Bill uses 28 acres for his horses. He applied 45-60-50 units of fertilizer per acre using 46-0-0 urea at $505 per ton, 18-46-0 DAP at $710 per ton, and 0-0-60 muriate of potash at $571 per ton. He reseeded with 14 pounds of orchard grass per acre at $1.32 per pound and 2.2 pounds of clover per acre at $3.45 per pound.
a. How many pounds of fertilizer were applied per acre? b. What did the fertilizer cost? c. What did the seed cost?
The term generator ____ refers to the phenomenon that an electrical current can be generated simply by moving a wire through a magnetic field.
a. election b. presentation c. magnetism d. action
Technician A says that fuel pressure regulators are often located on the return side of the fuel rail. Technician B says that the fuel pressure regulator is located in the fuel tank on vehicles using returnless systems. Which technician is correct?
A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B