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Summary of Contents for Leroy-Somer R448
- Page 1 3972 en - 05.2008 / e Armature Field 10 Yellow 11 Red 12 Black Green X1 Z2 E+ E- 0V 110 22 Slow fuse 250V 10 A with LAM without LAM requency 60Hz 50Hz R 448 ST10 R448 & R448 A.V.R. Installation and maintenance...
- Page 2 Warning symbol for electrical danger to personnel. Note: LEROY-SOMER reserves the right to modify the characteristics of its products at any time in order to incorporate the latest technological developments. The information contained in this document may therefore be changed without notice.
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Page 3: Table Of Contents
3.3 - LAM (Load Acceptance Module) characteristics ............8 3.4 - Typical effects of the LAM with a diesel engine with or without a LAM (U/F only)..9 3.5 - R448 A.V.R. options ....................9 4 - INSTALLATION - COMMISSIONING ................11 4.1 - Electrical checks on the AVR..................11 4.2 - Settings........................11... -
Page 4: General Information
LEROY-SOMER Installation and maintenance 3972 en - 05.2008 / e R448 & R448 V50 A.V.R. 1 - GENERAL INFORMATION 1.2 - Identification 1.1 - Description These 2 A.V.R.s have strictly identical characteristics dimensions, The A.V.R. R 448 V50 is delivered in a box... -
Page 5: Supply
LEROY-SOMER Installation and maintenance 3972 en - 05.2008 / e R448 & R448 V50 A.V.R. 2 - SUPPLY The first winding has a voltage in proportion to that of the alternator (characteristic 2.1 - AREP excitation system Shunt), the second has a voltage in For both AREP &... -
Page 6: Pmg Excitation System
LEROY-SOMER Installation and maintenance 3972 en - 05.2008 / e R448 & R448 V50 A.V.R. 2.2 - PMG excitation system jumper must be disconnected. These two principles provide the machine With PMG excitation, a permanent magnet with a short-circuit current capacity of 3 IN... -
Page 7: Shunt Or Separate Excitation System
LEROY-SOMER Installation and maintenance 3972 en - 05.2008 / e R448 & R448 V50 A.V.R. 2.3 - SHUNT or separate excitation - 3-phase sensing (R 731 module) - LAM function integrated in the R 448 AVR. system In SHUNT excitation, R 448 A.V.R. is In this case of LSA 42.2, A.V.R. -
Page 8: R448 A.v.r
LEROY-SOMER Installation and maintenance 3972 en - 05.2008 / e R448 & R448 V50 A.V.R. Configuration jumpers function 3 - R448 A.V.R. 3.1.1 - 3.1 - Characteristics Delivrery config. Pot. Position Function - Shunt power supply: max 150V - 50/60 Hz... -
Page 9: Frequency Compared With Voltage (Without Lam)
LEROY-SOMER Installation and maintenance 3972 en - 05.2008 / e R448 & R448 V50 A.V.R. 3.2 - Frequency compared with Voltage voltage (without LAM) Underspeed and LAM ST5 disconnected Voltage Voltage 57.5 Hz Bend 48 Hz 100 % 50 Hz 0.85 U... -
Page 10: Typical Effects Of The Lam With A Diesel Engine With Or Without A Lam (U/F Only)
R448 & R448 V50 A.V.R. 3.4 - Typical effects of the LAM with 3.5 - R448 A.V.R. options a diesel engine with or without a - Current transformer for parallel operation of../ 1A Š 2.5 VA CL 1 (See the diagram (U/F only) in this manual). -
Page 11: Installation - Commissioning
AVR. e) Stability potentiometer P3 to around 1/3 of the anti-clockwise limit. 4.2.1 - R448 settings (AREP or PMG f) Start the engine and set its speed to a system) frequency of 48 Hz for 50 Hz, or 58 for 60... - Page 12 LEROY-SOMER Installation and maintenance 3972 en - 05.2008 / e R448 & R448 V50 A.V.R. the voltage between E+ and E- (approx. 10V 4.2.2 - Max. excitation setting (excitation D.C.). The best response times are obtained ceiling) at the limit of the instability. If no stable Max.
- Page 13 (400V - 10A) Diode Excitation circuit E+, E- must not be left open when the machine is running : AVR damage will occur. Battery (B Volt) 4.2.3.1 - R448 field weakening (SHUNT) Exciter field Forced excitation B Volt Time Applications...
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Page 14: Electrical Faults
LEROY-SOMER Installation and maintenance 3972 en - 05.2008 / e R448 & R448 V50 A.V.R. 4.3 - Electrical faults Fault Action Effect Check/Cause The alternator builds up and its voltage is - Lack of residual magnetism still correct when the battery is removed. -
Page 15: Spare Parts
LEROY-SOMER Installation and maintenance 3972 en - 05.2008 / e R448 & R448 V50 A.V.R. 5 - SPARE PARTS 5.1 - Designation Description Type Code A.V.R. R 448 AEM 110 RE 016 A.V.R. R 448 V50 AEM 110 RE 022 5.2 - Technical support service... - Page 16 MOTEURS LEROY-SOMER 16015 ANGOULÊME CEDEX - FRANCE 338 567 258 RCS ANGOULÊME S.A. au capital de 62 779 000 euro...
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