Instruction Manual
© GE Grid Solutions
Index
1. SCHEMATIC DIAGRAM ................................................................................................................ 5
2. TRANSPORT, RECEPTION, UNPACKING AND STORAGE .................................................................... 6
2.1. Transport ........................................................................................................................... 6
2.2. Reception .......................................................................................................................... 7
2.3. Unpacking .......................................................................................................................... 7
2.4. Storage ............................................................................................................................ 11
3. ANCHORING ............................................................................................................................ 11
4. CONTACT SURFACES PREPARATION ............................................................................................ 11
5. CONNECTIONS AND ACCESORIES ............................................................................................... 12
5.1. Primary terminals ............................................................................................................. 12
5.2. Secondary terminal box..................................................................................................... 13
5.3. Secondary terminals ......................................................................................................... 13
5.4. HF terminal ...................................................................................................................... 13
5.5. Terminal marking ............................................................................................................. 14
5.6. Protection of compensation reactor and drain coil .............................................................. 14
5.7. CVT grounding .................................................................................................................. 14
5.8. EMU potential grounding switch ........................................................................................ 15
5.9. Carrier grounding switch ................................................................................................... 15
5.10. Line trap assembly ........................................................................................................ 16
6. OIL LEVEL INDICATOR................................................................................................................ 16
7. INSPECTION BEFORE FIRST ENERGIZING ...................................................................................... 17
8. ON-SITE TESTS ......................................................................................................................... 17
8.1. On-site test methods ........................................................................................................ 18
8.2. Care and precaution .......................................................................................................... 18
8.3. Capacitance measurement ................................................................................................ 18
8.4. Voltage ratio measurement ............................................................................................... 23
8.5. GARTON effect ................................................................................................................. 24
8.6. Capacitance and dissipation factor with temperature variation ............................................ 25
9. MANTENANCE AFTER ENERGIZING ............................................................................................. 25
10. FINAL DISPOSAL OF THE TRANSFORMER PARTS AFTER LIFE TIME ............................................... 26
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