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Automatic Voltage Regulator
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The Voltage Control Unit (VCU) is a solid state, repairable, state of the art design with latest technology. |
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The
VCU is supplying power to the exciter field of AC Generator and will
maintain generator voltage within close limits from no load to full
load, with a frequency change of not more than +/- 4% |
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Upon
application or rejection of rated load, the generator voltage recovers
to nominal value within 0.5 sec. However, the transient performance is
mainly dependent upon the exciter & a.c. generator design aspects |
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Under
some circumstances the AC Generator wave shape changes considerably
from no load to rated load due to the type of load, hence the r.m.s
average or the peak voltage does not stay in proportion. For more than
10% harmonic distortion, the voltage regulation may be outside the
limit specified. |
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Unbalanced load on 3 phase a.c. generators also produces regulation figures outside the limit. |
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VCU has been tested at factory and set to standard voltage, frequency and stability prior to the despatch. |
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VCU has been incorporated with special filters to perform satisfactorily or non linear loads. |
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