Appendix 4 Temperature Correction Table
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付録
索引
173
Source
→
GB50150-91 Standard for hand-over test
of electric equipment, electric equipment
installation engineering (Chinese)
Object under test
Motor stator winding: Class B ther-
mosetting insulating material
Selectable reference
temperature range
5 to 100°C, (default 20°C)
Convertible range of
actual temperature
used for measurement
5.0 to 70.0°C
Correction formula
Converted to a resistance value at
the reference temperature using
the formula below and result dis-
played.
Rtref : Resistance after correction
for reference temperature
of tref°C
Rt
: Resistance measured at
the temperature of t°C
tref
: Reference temperature [°C]
t
: Actual temperature used
for measurement [°C]
Rt
6
.
1
tref
10
/
)
(
R
×
=
−
tref
t
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