Hitachi SM 6145, Installation Operation & Maintenance

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STS USASecondary Surge Suppressors USSP)
Copyright SM 6145, Rev. 23, March 2019 iii
Table of Contents
1. INTRODUCTION ............................................................................................................................... 1-1
1.1 Description ................................................................................................................................... 1-1
1 . 2 Specifications ............................................................................................................................. 1-2
1.2.1 Physical/Mechanical (Typical Unit) ............................................................................... 1-2
1.2.2 Electrical ....................................................................................................................... 1-2
2. PRINCIPLES OF OPERATION ......................................................................................................... 2-1
3. INSTALLATION ................................................................................................................................. 3-1
4. TROUBLESHOOTING AND MAINTENANCE .................................................................................. 4-1
4 . 1 Visual Inspection and Troubleshooting Considerations ............................................................ 4-1
4 . 2 General Current Test ................................................................................................................. 4-2
5. PARTS LIST ...................................................................................................................................... 5-1
6. RAIL TEAM AND TECHNICAL SUPPORT ...................................................................................... 6-1
List of Figures
Figure 1-1. Typical USSP Secondary Surge Suppressor .................................................................. 1-1
Figure 1-2. USG-A Lightning Arrestor Schematic Diagram ................................................................ 1-3
Figure 3-1. USSP Battery Line, Track Circuit, and AC Line Models Typical Installation ................... 3-2
Figure 4-1. USSP Test Set Up ........................................................................................................... 4-2
Figure 5-1. USSP Assembly Drawing ................................................................................................ 5-3
List of Tables
Table 1-1. USSP Electrical Specifications – All Models .................................................................... 1-4
Table 1-2. USG-A Lightning Arrestor Specifications ......................................................................... 1-5
Table 4-1. USSP Current Test Values .............................................................................................. 4-3
Table 5-1. Common Parts ................................................................................................................. 5-1
Table 5-2. Parts List .......................................................................................................................... 5-2