Hioki 3455 - Appendix 4 Temperature Correction Table

Appendix 4 Temperature Correction Table
1
2
3
4
5
6
7
8
9
10
11
付録
索引
163
The temperature correction function uses
the tables below.
• Tables No.0 to 8 are based on Chinese
standards.
• Table No.9 is based on the US IEEE stan-
dards.
Source  GB50150-91 Standard for hand-over
test of electric equipment, electric
equipment installation engineering
(Chinese)
Reference DL/T596-1996 Power installation pre-
ventive maintenance code (Chinese)
Appendix 4 Temperature Correction
Table
Object under test
Oil-impregnated power transformer
Selectable reference
temperature range
-10 to 70°C (default 20°C)
Convertible range of
actual temperature
used for measurement
-10.0 to 70.0°C
Correction formula
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]