Operating and Maintenance Instructions
Inspection intervals
1HSB435409-100 en1
11
7.
Thermovision
measurements
3-6 years or 2,500 mechanical
Close-Open operations.
To be carried out at full load before the
circuit-breaker is taken out of service.
Checking the temperature rise of the
the external parts of the breaking unit.
The maximal allowed temperature
difference between phases is
5 degrees.
Thermovision camera.
The load current must be taken into
consideration during the measurements
as well as large variations in the load
current 3-4 hours before the
measurements.
See manual for the thermovision
camera.
8.
Operational test
3-6 years or 2,500 mechanical
Close-Open operations.
Operational test, if possible in
combination with measurement of
operating times, (incl. Close-Open
times).
To be inspected
Inspection interval
Measures / Instructions /
Tools
Summary of Contents for SF6 LTB 245E1 BLG 1002A
Page 1: ...Product Manual 1HSB435416 2 en Rev 1 LTB 245E1 BLG 1002A 3 pole operation ...
Page 92: ...ABB Switchgear SF6 Circuit Breaker Circuit breakers HPL and LTB 1HSB445409 1 en0 Lubricants ...
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