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Test adapter, 2769 522-C, optional equipment
The test adapter 2769 522-C is available for permanent connection to measuring circuits. Please refer to Test
adapter – Technical guide 1ZSC000563-ACS and Installation and maintenance guide 1ZSC000563-ACD.
2.2 Technical specifications
2.2.1 General specifications
Refer to the table for the standard technical specifications of the bushing. For conditions exceeding the
specifications, please contact Hitachi ABB Power Grids.
Application:
Classification:
Ambient temperature limits:
Maximum altitude of site:
Level of rain and humidity:
Maximum pollution level:
Immersion medium:
Oil-level in transformer:
Maximum pressure of medium:
Angle of installation:
Test tap:
Conductor:
Markings:
10
Transformers
Transformer bushing
•
Oil impregnated paper, capacitance graded, oil immersed.
•
For outdoor use.
-40 °C to +40 °C, limit temperatures.
1000 m
1-2 mm rain/minute horizontally and vertically, according to
IEC 60060-1.
According to the specific creepage distance, and IEC 60815.
Transformer oil.
•
Maximum daily mean oil temperature: +90 °C.
•
Maximum temporary oil temperature, at short time
overload: +115 °C.
Not lower than 30 mm from the bushing flange.
p
100 kPa (p
= relative to ambient pressure).
g
g
Vertical
Test tap with 8 mm male contact pin.
According to IEEE type A.
Center-tube conductor.
Conforming to IEC.
Installation and commissioning guide
1ZSC000563-AAF EN, REV. 4, 2021-06-23
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