Operating and Maintenance Instructions
Inspection intervals
1HSB435409-100 en1
9
Condition of circuit-breaker during work:
a1)
Circuit-breaker in service.
b1)
Closing springs unloaded, circuit-breaker open, disconnected and earthed. If
thermovision measurement is included, it shall be done at normal load before
the circuit-breaker is disconnected.
c1)
Closing springs unloaded, circuit-breaker open, disconnected and earthed.
Poles/Breaking units dismounted and transported to workshop.
d1)
Closing springs unloaded, circuit-breaker open, disconnected and earthed.
Complete circuit-breaker including operating mechanism transported to
workshop.
Competence requirements:
a2)
Substation personnel with no special training.
b2)
Personnel authorised by ABB to carry out assembly, commissioning and
maintenance work.
c2)
Personnel authorised by ABB to carry out assembly, commissioning and
maintenance work. Support from ABB may be necessary in certain cases.
3.2 Maintenance category A
To be inspected
Inspection interval
Measures / Instructions /
Tools
1.
Ocular inspection
1-2 years
Check external cleanliness, heater
element function, gas pressure, valves
and drainage holes.
No special tools needed.
See
Chapter 2.1.3
and
Chapter 2.1.4
and 1HSB515409-100 for BLG 1002A
or 1HSB535409-100 for BLK 222.
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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