Instruction Manual
© GE Grid Solutions 4
INDEX
1. GENERAL DRAWING ............................................................................................................. 5
2. DESIGN AND CONSTRUCTION ............................................................................................. 6
2.1. Inverted construction and primary circuit ........................................................................... 6
2.2. Secondary circuit .............................................................................................................. 6
2.3. Paper-oil insulation ........................................................................................................... 6
2.4. Cast aluminum tank .......................................................................................................... 7
2.5. External metallic parts ....................................................................................................... 7
3. TRANSPORT, RECEPTION, UNPACKING AND STORAGE .................................................. 7
3.1. Transportation................................................................................................................... 7
3.2. Reception ......................................................................................................................... 7
3.3. Unpacking .............................................................................................................................. 7
3.4. Storage ............................................................................................................................. 9
4. BELLOWS BLOCKING SYSTEM AND ASSEMBLY IN THE STRUCTURE ............................. 9
4.1. Bellows blocking system ................................................................................................... 9
4.2. Assembly in the structure ................................................................................................ 10
5. CONTACT SURFACES PREPARATION ............................................................................... 10
6. CONNECTIONS .................................................................................................................... 10
6.1. Primary Terminals ........................................................................................................... 10
6.2. Primary bar type (if applicable) ....................................................................................... 11
6.3. Double / Triple Reconnection Primary type (if applicable) ............................................... 11
6.4. Grounding ....................................................................................................................... 11
6.5. Secondary terminals ....................................................................................................... 11
6.6. Terminal marking ............................................................................................................ 11
7. OIL LEVEL INDICATOR ........................................................................................................ 11
8. INSPECTION BEFORE FIRST ENERGIZING ....................................................................... 12
9. MAINTAINENCE AFTER ENERGIZING ................................................................................ 12
10. PROPER DISPOSAL OF TRANSFORMERS COMPONENTS AFTER LIFESPAN ............ 14
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