Advertisement
List of Figures
1.
V iew of the 5kV 'VL' Breaker with Front Cover ............................................................................... 7
2.
Hooking lifting eyes ........................................................................................................................... 8
3.
Manual Trip & Close .......................................................................................................................... 9
4.
Positive Interlock ............................................................................................................................... 9
5.
Rating Interference Bolt .................................................................................................................. 10
6.
Positive Interlock system ................................................................................................................ 12
7.
Manual charge handle ..................................................................................................................... 13
8.
Primary Contact Insertion ............................................................................................................... 14
9.
Primary contact penetration and wipe ........................................................................................... 15
10. MOC switch ...................................................................................................................................... 16
11. Secondary disconnect coupler ........................................................................................................ 17
12. Front View of ML-19 Mechanism with Front Cover Removed ..................................................... 18
13. Charging & Trip system left side view ............................................................................................ 19
14. Manual Charging system right side view ....................................................................................... 19
15. Electrical Charging system right side view .................................................................................... 20
16. Closing linkage left side view .......................................................................................................... 20
17. Opening spring & auxiliary switch left side view ........................................................................... 21
18. Wipe Spring assembly left side view ............................................................................................. 21
19. Typical ML-19 mechanism internal wiring connections ................................................................ 22
20. Typical breaker wiring diagram (Replacement for breakers with MS mechanisms ................... 23
21. Typical breaker wiring diagram (Replacement for breakers with ML mechanisms ................... 24
22. Closing spring with gag tool inserted ............................................................................................. 25
23. Contact Erosion Indicator ................................................................................................................ 26
24. Primary contact erosion measurement-rear view ........................................................................ 26
25. Wipe indicator check and wipe measurement-rear view ............................................................. 27
26. Sample Operating Speed Graphs .................................................................................................. 33
27. Opening Speed Adjustment ............................................................................................................ 33
28. Travel Transducer Installation (Part#0144D1235G00X) ............................................................... 34
29. Wipe Insulator .................................................................................................................................. 35
30. Contact Gap Adjustment—Opening Buffer .................................................................................... 36
31. Contact Gap measurement, wipe indicator check and wipe measurement ................................ 36
32. Trip coil gap adjustment .................................................................................................................. 37
33. Trip coil button with gage ................................................................................................................ 37
34. Trip coil assembly ............................................................................................................................ 37
35. Close coil assembly-front view ....................................................................................................... 38
36. Close coil gap adjustment-front view ............................................................................................. 38
37. SM/LS & CHG switch adjustment-left side view ............................................................................ 39
38. CL/MS and positive Interlock switch adjustment-right side view ................................................. 39
39. Positive Interlock ............................................................................................................................. 40
40. Adjustment of MOC Switch/Plunger Interlock ................................................................................ 41
41. Toggle Linkage Positions ................................................................................................................. 42
41A Toggle Linkage Positions (View from Right Side) .......................................................................... 42
42. Toggle Linkage Positions (View from Right Side) .......................................................................... 42
42A Toggle Linkage Positions (View from Right Side) .......................................................................... 42
43. Pole Assembly ................................................................................................................................. 44
44. Trip Coil and Linkage (Closing Spring Removed) .......................................................................... 46
45. Front V iew of ML-19 Breaker Mechanism (Lower) ....................................................................... 48
46. Front View of ML-19 Breaker Mechanism (Upper) ....................................................................... 49
47. Motor Cutoff Switch ........................................................................................................................ 50
48. Closing Spring Gag .......................................................................................................................... 50
49. Front View of ML-19 Mechanism with Front Cover Removed ..................................................... 51
50. Schematic of ML-19 Mechanism .................................................................................................... 52
51. Typical stationary structure wiring ................................................................................................. 56
52. Electrical schematic diagram for vertical lift elevating mechanism ............................................ 57
53. Positive interlock M-26 units ........................................................................................................... 59
Appendix A .............................................................................................................................................. 63
List of Tables
1. Measurements .................................................................................................... 43
2. Adjustments ........................................................................................................ 43
3. ML-19 Control Devices and Voltages ................................................................ 47
4. Elevating Motor Troubleshooting ...................................................................... 57
Trouble Reporting Form ..........................................................................................
Courtesy of NationalSwitchgear.com
PowerVac
5
5kV Vertical Lift
®
Table of Contents
66-67
Advertisement
