2018.01 / g
Electric Power Generation
3
Installation and maintenance
R449 revision f
AVRs
3983 en -
CONTENTS
1 - INTRODUCTION TO THE R449 .........................................................................................4
1.1 - Application ....................................................................................................................4
1.2 - Description ...................................................................................................................4
1.3 - Electrical characteristics ...............................................................................................8
1.4 - Environment ............................................................................................................... 11
2 - R726: REGULATION OF POWER FACTOR (2F) AND MAINS SENSING (3F) ...............12
2.1 - Operating diagram .....................................................................................................12
2.2 - Potentiometers ...........................................................................................................13
3 - TYPICAL DIAGRAMS ......................................................................................................14
3.1 - AREP 1F LV excitation ...............................................................................................14
3.2 - AREP 1F MV excitation ..............................................................................................15
3.3 - AREP 3F LV excitation ...............................................................................................16
3.4 - AREP 3F MV excitation ..............................................................................................17
3.5 - 1F LV shunt + booster excitation ................................................................................18
3.6 - 1F LV PMG excitation .................................................................................................19
4 - COMMISSIONING ............................................................................................................20
4.1 - In case of standalone regulation .................................................................................20
4.2 - In case of 1F regulation (parallel operation between alternators) ...............................20
4.3 - In case of 2F (power factor regulation) and 3F (voltage match circuit) ........................20
5 - TROUBLESHOOTING .....................................................................................................22
5.1 - Checking the windings and rotating diodes using a separate excitation .....................22
5.2 - Static checking of the regulator ..................................................................................22
5.3 - Troubleshooting table ................................................................................................23
5.4 - Replacing the regulator with a spare voltage regulator ..............................................25
6 - SPARE PARTS .................................................................................................................25
6.1 - Designation ................................................................................................................25
6.2 - Technical support service ...........................................................................................25
Disposal and recycling instructions
