ELECTRICAL/MECHANICAL CHARACTERISTICS
TESTING AND ADJUSTING
Notes Relating to Charts
1.
All SR 4 Generators have 10 line leads and are
Wye (Y, star) connected. Line leads are
connectable to either the higher or lower listed
rated voltage.
2.
Stator resistance is the line-to-line ohmic value
when the coils are connected in parallel for the
lower
voltage.
For
line-to-neutral
stator
resistance, divide the value by 2. For line-to-line
resistance when the coils are connected in
series for high voltage, multiply the value by 4.
For line-to-neutral resistance with the coils in
series for high voltage, multiply the figure by 2.
3.
Reactances are line-to-neutral per unit values at
the listed kW rating. To convert to ohmic values,
multiply listed value by the factor:
Rated Volts
3-x Rated Amperes
4.
To find the per unit reactance value at any kW,
multiply the listed per unit value by the factor:
kW
Rated kW
NOTE:
For
the
latest
electrical/mechanical
information, make reference to the TECHNICAL
INFORMATION FILE (T.I.F.).
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