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Instruction Manual
Tests
It is recommended after the first few
hours of operation and whenever there
is a change in the KOTEF72 primary
current
(in
the
performing the measurement of the
primary terminal temperature with a
proper
temperature
instrument.
It is advised to perform the following
tests before putting the KOTEF72 in
operation and thereafter at four year
intervals depending on availability of
the KOTEF72:
1) Ratio (TTR);
2) Polarity (Polarity meter);
3) Saturation Voltage for CT (ac
voltage
source,
Ammeter);
4) Ohm
Resistance
bridge);
5) Insulation Resistance with any
megohmmeter;
6) Tan δ of the HV insulation (Double
M4100, Omicron CPC100 or any
equivalent).
Important remark:
During commissioning and tests, it is
recommended recording the results
acquired in the tests abovementioned.
In case of doubts, please contact the
technical assistance support of GE: +55
35 3629 7042 or 7038 or 7000
© GE Grid Solutions
bar
connection),
measuring
Voltmeter
and
(Wheatstone
10. PROPER DISPOSAL OF
TRANSFORMERS COMPONENTS
AFTER LIFESPAN
The instrument transformers are mainly
composed of the following components,
which after transformer's lifespans
require a properly disposal in order to
prevent environmental contamination.
Components
Metallic materials
Resin and materials
saturated with resin
Oil (PCB-free) –
classified as Class I
hazardous residue
Material
contaminated with
oil
Porcelain insulator
Other materials
The disposal of oil and components
contaminated with oil directly into the soil
or water is prohibited.
For further information or clarifications,
contact GE environment department: +55
35 36297112.
Recommended
Disposal
Metal recycling
company
Oil disposing
company properly
licensed to perform
such activity
Oil disposing
company properly
licensed to perform
such activity
Co-processing or
incineration at a
company properly
licensed
Industrial landfill
properly licensed
Industrial landfill
properly licensed
13
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