QUALITROL AKM345 GEN3 OTIWTI
TM
Instruction Manual
40-08847-00-Rev001
www.qualitrolcorp.com
Page 30 of 34
7.4
External Matching Units
When an internal matching resistance is not specified, there is the option to use a 1A or 5A external matching
resistance unit depending on the magnitude of the current from the bushing current transformer.
The 1A or 5A external matching resistance current output is connected to terminals 5-5 on the AKM345 GEN3.
Use the below
Guideline for Adjustment of Heating Current with External Matching Unit
to determine the
magnitude of the current required by the heating element to provide the required winding temperature gradient
in °C.
.5
.5
ea ng urrent
1.5
1
.5
1
d
radient
radient
for bulb type 11 1 15 and 1
1
1
1
1
1
il temp.
.
.
.
.
.
1.
1.1
1.15
1. 1
1.
1. 1
ea ng urrent mp. 5
ulb in lled well.
ppro imate temperature
rise above oil temperature.
ma on nuously
ma 1 for 5 s
hermal me onstant
value appro . min.
