Overhaul Instructions
1HSB435409-201 enrev1
i
LIST OF CONTENTS
1. General ............................................................................... 1
2. Safety................................................................................... 3
2.1
Warning text ................................................................................... 3
2.2
Safety directives ............................................................................. 4
3. Overhaul, general ............................................................... 7
3.1
Tools ............................................................................................... 7
3.2
Gas handling equipment................................................................. 7
3.3
Personal safety equipment.............................................................. 7
3.4
Cleaning equipment ....................................................................... 7
3.5
Spare parts...................................................................................... 8
3.6
Test equipment ............................................................................... 8
3.7
Premises ......................................................................................... 8
4. Dismantling the circuit-breaker......................................... 9
4.1
General ........................................................................................... 9
4.2
Gas................................................................................................ 10
4.3
Cleaning and waste disposal ........................................................ 11
4.4
Dismantling the circuit-breaker pole for transport....................... 12
5. Dismantling the circuit-breaker pole .............................. 13
5.1
Dismantling the tripping mechanism’s pull-rod........................... 13
5.2
Removing the breaking unit ......................................................... 14
5.3
Removing the post insulator......................................................... 15
5.4
Dismantling the breaking unit...................................................... 16
6. Contact and puffer replacement ..................................... 17
6.1
Inspection of the upper current path............................................. 17
6.2
Inspection of the puffer ................................................................ 18
6.3
Inspection of the lower current path............................................. 19
7. Overhaul of the mechanism ............................................ 21
8. Assembling the circuit-breaker pole .............................. 23
8.1
Treatment of contact surfaces ...................................................... 23
8.2
Treatment of sealing surfaces and seals ....................................... 24
8.3
Assembling the breaking unit....................................................... 25
8.4
Assembling the post insulator ...................................................... 26
8.5
Assembling the circuit-breaker pole ............................................ 27
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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