Related Manuals for Leroy-Somer R452
Summary of Contents for Leroy-Somer R452
- Page 1 Ref. 3563 GB - 4.33 / a - 01.02 (12V - 10A) R 452 Isolated DC power supply ~ 10 ohms Exciter field VOLTAGE REGULATOR R452 Installation and maintenance...
- Page 2 LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 WARNING IN ORDER TO AVOID ANY HARM TO EITHER PERSONNEL OR THE INSTALLATION, THIS DEVICE MUST ONLY BE SET UP BY A QUALIFIED ENGINEER.
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Page 3: Table Of Contents
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 CONTENTS 1 - Presentation of the R 452 ........................4 1.1 - Application ..........................4 1.2 - Description ..........................4 1.3 - Electrical characteristics......................5 1.3.1 - Operating diagram ....................... -
Page 4: Presentation Of The R 452
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 R 452 RESENTATION OF THE 1 - PRESENTATION OF THE R 452 With LAM Without LAM Exciter field 1.1 - application Supply 50Hz 60Hz The R 452 regulator is of a shunt type. -
Page 5: Electrical Characteristics
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 R 452 RESENTATION OF THE 1.3 - electrical characteristics 1.3.1 - operating diagram... -
Page 6: Sensing
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 R 452 RESENTATION OF THE 1.3.2 - sensing Selection of underfrequency threshold using the ST3 jumper The sensing is single-phase and is isolated using an internal... - Page 7 LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 R 452 RESENTATION OF THE - Typical effects of a ''LAM'' with a diesel engine. Transient voltage dip Voltage (U/f) Speed drop Frequency "LAM" action ∆...
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Page 8: Stability
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 R 452 RESENTATION OF THE 1.3.9 - stability To reset, switch off the power supply by opening switch (A). Note: After setting the excitation ceiling using this procedure, Definition of stability potentiometers: re-adjust the voltage. -
Page 9: R 726: Regulation Of Power Factor (2F) And Mains Voltage Sensing (3F)
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 R 726 : R (2F) (3F) EGULATION OF POWER FACTOR AND MAINS VOLTAGE SENSING 2 - R 726 : REGULATION OF POWER FACTOR (2F) AND MAINS VOLTAGE SENSING (3F) The power factor and mains voltage sensing are regulated by the R726 module. -
Page 10: Operating Diagram
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 R 726 : R (2F) (3F) EGULATION OF POWER FACTOR AND MAINS VOLTAGE SENSING 2.2 - operating diagram... -
Page 11: Typical Diagrams
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 YPICAL DIAGRAMS 3 - TYPICAL DIAGRAMS The following diagrams are supplied for information only and are not to be used in place of the actual alternator diagrams. -
Page 12: Arep 1F Mv Excitation
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 YPICAL DIAGRAMS 3.2 - AREP 1F MV excitation... -
Page 13: Arep 3F Lv Excitation
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 YPICAL DIAGRAMS 3.3 - AREP 3F LV excitation... -
Page 14: Arep 3F Mv Excitation
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 YPICAL DIAGRAMS 3.4 - AREP 3F MV excitation... -
Page 15: 1F Lv Shunt + Booster Excitation
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 YPICAL DIAGRAMS 3.5 - 1F LV Shunt + Booster excitation... -
Page 16: 1F Lv Pmg Excitation
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 YPICAL DIAGRAMS 3.6 - PMG 1F LV excitation... -
Page 17: Commissioning
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 OMMISSIONING 4 - COMMISSIONING - The no-load voltages should be identical on all the alternators intended to run in parallel. The commissioning principle is the same regardless of the type of excitation. - Page 18 LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 OMMISSIONING - Power factor regulation with the alternator synchronised to the mains voltage (2F): - The following settings are for the R 726. When the alternator is in phase with the mains and the mains and alternator voltages are equal, proceed with synchronisation.
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Page 19: Troubleshooting
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 ROUBLESHOOTING 5 - TROUBLESHOOTING ASSEMBLY B 5.1 - checking the windings and Variac Exciter field rotating diodes using a separate excitation During this procedure, make sure that the alternator is... -
Page 20: Troubleshooting Table
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 ROUBLESHOOTING 5.3 - troubleshooting table - Before any intervention on the R 452 or the R 726, carefully note the potentiometer and jumper positions. - Page 21 LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 ROUBLESHOOTING Symptoms Probable causes Solutions Incorrect regulation. - Distortion of the waveform, non-linear load. - Contact ACEO. - Unbalanced load. - Balance the load or change the sensing points.
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Page 22: For 2F And 3F
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 3563 GB - 4.33 / a - 01.02 VOLTAGE REGULATOR R452 ROUBLESHOOTING 5.3.2 - for the 2F and 3F Symptoms Probable causes Solutions Incorrect PF regulation, PF - Vectorial composition fault between the sensing - Check the sensing wiring and the parallel potentiometer has no voltage and the stator current. - Page 24 MOTEURS LEROY-SOMER 16015 ANGOULÊME CEDEX - FRANCE RCS ANGOULÊME N° B 671 820 223 S.A. au capital de 62 779 000 www.leroy-somer.com...