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Installation and commissioning guide
1ZSC000563-AAF EN, REV. 4, 2021-06-23
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.
G003049
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: Transformers
Classification: Transformer bushing
• Oil impregnated paper, capacitance graded, oil immersed.
• For outdoor use.
Ambient temperature limits: -40 °C to +40 °C, limit temperatures.
Maximum altitude of site: 1000 m
Level of rain and humidity: 1-2 mm rain/minute horizontally and vertically, according to
IEC 60060-1.
Maximum pollution level: According to the specific creepage distance, and IEC 60815.
Immersion medium: Transformer oil.
• Maximum daily mean oil temperature: +90 °C.
• Maximum temporary oil temperature, at short time
overload: +115 °C.
Oil-level in transformer: Not lower than 30 mm from the bushing flange.
Maximum pressure of medium: p
g
100 kPa (p
g
= relative to ambient pressure).
Angle of installation: Vertical
Test tap: Test tap with 8 mm male contact pin.
According to IEEE type A.
Conductor: Center-tube conductor.
Markings: Conforming to IEC.
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