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Automatic Voltage Regulator – GRT7-TH4E / GRT7-TH4PE l 9
INDEX
1 SAFETY INFORMATION ............................................................................................ 11
2 STORAGE INFORMATION ......................................................................................... 11
3 INTRODUCTION ......................................................................................................... 11
4 TECHNICAL CHARACTERISTICS ............................................................................. 12
5 REGULATOR NAMEPLATE ....................................................................................... 12
6 BLOCK DIAGRAM ...................................................................................................... 13
7 TRIMPOTS FUNCTION ............................................................................................... 13
8 TRIMPOTS ADJUSTMENT ......................................................................................... 13
9 OPERATION ............................................................................................................... 14
9.1 VOLTAGE REGULATOR .................................................................................................................. 14
9.2 POWER CIRCUIT CONNECTION .................................................................................................... 14
9.3 FIELD FLASHING ............................................................................................................................. 14
9.4 U/F OPERATION .............................................................................................................................. 14
9.5 PARALLEL OPERATION FOR TWO OR MORE ALTERNATORS ................................................... 15
10 CONNECTION DIAGRAMS ........................................................................................ 16
11 DIMENSIONAL DRAWINGS ....................................................................................... 16
12 IDENTIFICATION OF CONNECTION TERMINALS ................................................... 17
13 DIAGRAM FOR TEST WITHOUT ALTERNATOR ...................................................... 17
14 PROBLEMS, CAUSES AND CORRECTIVE ACTIONS ............................................. 18
15 PREVENTIVE MAINTENANCE................................................................................... 18
16 WARRANTY ................................................................................................................ 18
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