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motor chap5
| Question | Answer |
|---|---|
| 3 phase motor's operating speed depends on its | number of poles |
| in a variable torque motor, torque and horsepower vary, _____ with the speed | directly |
| If a dual voltage wye motor is wired for high voltage then the windings are tied in? | series |
| If a dual voltage delta motor is wired for low voltage then the windings are tied in? | parallel |
| There are how many mechanical degrees in one revolution? | 360 |
| An _______ motor has no physical electrical connection to the rotor | induction |
| ______ power is the standard power supplied to almost all commercial and industrial locations. | 3 phase |
| there are _________ electrical degrees from one pole to the next. | 180 |
| an ________ motor has the rotor windings connected to a short circuit through brushes | repulsion |
| each phase of a 3 phase motor contains ______ of the total number of individual coils. | 1/3 |
| the most common 3 phase motor used in industry is the _______ motor | indication |
| 3 phase motors have fairly constant speed | true |
| in a single-voltage, delta-connected, 3 phase, each phase is ____ | wired end to end to form a closed circuit |
| in a duel voltage, wye-connected, 3 phase motor, _____ terminal loads are available | 9 |
| multiple speed 3 phase motors are designed to operate at ______ speed. | three |
| in a constant horsepower motor, torque ________ as speed increases | decreases |
| in a variable torque motor, torque and horsepower ________ at higher speed | increase |
| when troubleshooting a 3 phase motor, if the check for open or shorted windings reads ________, the coil is shorted | zero |
Created by:
randynuden