EBK BUSINESS DRIVEN INFORMATION SYSTEMS
6th Edition
ISBN: 8220106796986
Author: BALTZAN
Publisher: YUZU
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Question
Chapter 9, Problem 6RQ
To determine
The most risky phase among all the phases of the system development life cycle.
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Students have asked these similar questions
An open-circuit voltage of 240 V appears
across the slip-rings of a wound-rotor in-
duction motor when the rotor is locked.
The stator has 6 poles and is excited by a
60 Hz source. If the rotor is driven by a
variable-speed dc motor, calculate the
open-circuit voltage and frequency across
the slip-rings if the dc motor turns
a. At 600 r/min, in the same direction as
the rotating field
b. At 900 r/min, in the same direction as
the rotating field
c. At 3600 r/min, opposite to the rotating
field
If we double the number of poles on the
stator of an induction motor, will its syn-
chronous speed also double?
The rotor of an induction should never be
locked while full voltage is being applied
to the stator. Explain.
Why does the rotor of an induction motor
turn slower than the revolving field?
a. Calculate the synchronous speed of a
3-phase, 12-pole induction motor that is
excited by a 60 Hz source.
b. What is the nominal speed if the slip at
full-load is 6 percent?
Chapter 9 Solutions
EBK BUSINESS DRIVEN INFORMATION SYSTEMS
Ch. 9 - Prob. 1OCQCh. 9 - Prob. 2OCQCh. 9 - Prob. 3OCQCh. 9 - Prob. 4OCQCh. 9 - Prob. 5OCQCh. 9 - Prob. 6OCQCh. 9 - Prob. 1RQCh. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - Prob. 4RQ
Ch. 9 - Prob. 5RQCh. 9 - Prob. 6RQCh. 9 - Prob. 7RQCh. 9 - Prob. 8RQCh. 9 - Prob. 9RQCh. 9 - Prob. 10RQCh. 9 - Prob. 11RQCh. 9 - Prob. 12RQCh. 9 - Prob. 13RQCh. 9 - Prob. 14RQCh. 9 - Prob. 15RQCh. 9 - Prob. 1CCOCh. 9 - Prob. 2CCOCh. 9 - Prob. 3CCOCh. 9 - Prob. 4CCOCh. 9 - Prob. 1CCTCh. 9 - Prob. 2CCTCh. 9 - Prob. 3CCTCh. 9 - Prob. 4CCTCh. 9 - Prob. 1CBTCh. 9 - Prob. 2CBTCh. 9 - Prob. 3CBTCh. 9 - Prob. 4CBTCh. 9 - Prob. 5CBTCh. 9 - Prob. 6CBTCh. 9 - Prob. 7CBTCh. 9 - Prob. PIAYKBPCh. 9 - Prob. PIIAYKBPCh. 9 - Prob. PIIIAYKBPCh. 9 - Prob. PIVAYKBPCh. 9 - Prob. PVAYKBPCh. 9 - Prob. PVIAYKBP
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