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podryga [215]
3 years ago
8

Explain the relationships among speed, frequency, and the number of poles in a three-phase induction motor

Business
1 answer:
Triss [41]3 years ago
5 0

The synchronous speed (rpm) equals 60 times the frequency divided by the number of pole pairs. For 50Hz, a two-pole motor will have a synchronous speed of 3000 rpm, a four-pole motor of 1500 rpm.

The actual speed is a few percent lower due to the slip of the asynchronous motor.


The slip increases with the torque, typical values are 5–10%. The rated speed for a four-pole motor at 50Hz will thus be something like 1360 rpm. At no-load, the slip is very small.
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6 0
3 years ago
When reviewing the balance sheet for Portable Pet Care, Inc., a mobile small animal care business, Ricky noted the following inf
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Answer:

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Explanation:

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So, the accounting equation is

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where,

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3 0
3 years ago
A corporation issued 2,500 shares of its no par common stock at a cash price of $11 per share. The entry to record this transact
Rus_ich [418]

Answer:

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4 0
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Answer:

These statements are correct:

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3 0
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