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e-mail:iec@giaspn01.vsnl.net.in
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Characteristics |
Voltage
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Frequency |
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110% |
90% |
105% |
95% |
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Torque* |
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Speed
** |
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Efficiency
: |
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PowerFactor: |
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Current
: |
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Temperature
rise |
Decrease
3 to 4% |
Increase
6 to 7% |
-do- |
-do- |
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Maximum
overload
capacity |
Increase
21% |
Decrease
19% |
-do- |
-do |
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Magnetic
noise |
Slight
Increase |
Slight
decrease |
- |
-do- |
*The
starting and maximum running torque of A.C. induction motors
will vary
as the square of the
** The speed of A.C. induction motors will vary
directly with the frequency.