Heat Run - Temperature
Rise
10.3.5 Dry Type Transformer Measurement
Measurement consists of only two steps. Firstly start the test when HV is applied to the
transformer. Second continue to the cooling curve application before the HV supply is switched
off.
Click Start for temperature
recording to begin when HV
injection is applied.
A warning message is displayed
as a reminder that temperature
rise and cooling curve must be
setup before clicking Continue
The latest readings are shown on
the screen and the graph shows
all the measurements from when
the test was started.
When the winding/core
temperature rise reaches the
setup value the status changes to
green and the step 1 timer starts
to countdown. If the setup value is
exceeded, the countdown will
reset
When the temperature rise has
been maintained for the required
time, the test is complete. Click
OK
Click Continue to switch
automatically from Temperature
Rise to Cooling Curve application.
When the HV injection is switched
off, press Start Timer.
Then connect immediately the
measurement clamps to the
transformer and press Start Meas
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