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Related Manuals for Nidec Leroy-Somer R121
Summary of Contents for Nidec Leroy-Somer R121
- Page 1 OE UF R121 R121 AVRs Installation and maintenance...
- Page 2 Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs This manual concerns the alternator AVR which you have just purchased. We wish to draw your attention to the contents of this maintenance manual. SAFETY MEASURES Before using your machine for the first time, it is important to read the whole of this servicing...
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Page 3: Table Of Contents
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs CONTENTS 1 - GENERAL DESCRIPTION ....................4 2 - OPERATION OF THE AVR ....................4 3 - TECHNICAL SPECIFICATION ...................5 4 - MAIN FUNCTION OF THE AVR ..................6 5 - AVR SETTINGS ........................ -
Page 4: General Description
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs 1 - GENERAL DESCRIPTION 2 - OPERATION OF THE AVR The R121 automatic voltage regulator The AVR is powered by the terminals of the (AVR) is a compact, high-performance AC generator, with 110 V-220 VAC rms at encapsulated unit. -
Page 5: Technical Specification
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs 3 - TECHNICAL SPECIFICATION 17) Potentiometer sealing: except for the V-trim potentiometer, all potentiometers are 1) Sensing input and Input power sealed. - Voltage: 90 V to 277 VAC ±10%, 50/60 Hz 18) Frequency roll-off indicator: LED 2) Output power provided (UF). -
Page 6: Main Function Of The Avr
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs 4 - MAIN FUNCTION OF THE AVR The AVR is powered by the terminals of the AC generator with 110 VAC-220 VAC at 50/60 Hz. The regulated sensing voltage is based on the AVR input power. MAIN FIELD STATOR: 12 wires (T1 to T12 identification) Armature... -
Page 7: Avr Settings
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs The AVR builds up the generator voltage External voltage setting up to ±15% of rated from its residual voltage to rated voltage. voltage with 2K potentiometer on terminals When the generator is loaded, the sensed R1 and R2. -
Page 8: Troubleshooting Chart
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs 7 - TROUBLESHOOTING CHART Symptom Cause Action No voltage Fuse blown Check and replace build-up Low residual voltage across U If the generator’s residual voltage at rated speed and N terminals is less than 2.5 VAC (L-N), disconnect the AVR and connect a 24 VDC battery, keeping F1 as... -
Page 9: Multimeter Checks
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs 8 - MULTIMETER CHECKS Equipment: Digital multimeter Select Diode mode on the digital multimeter. The resistance between F1 and F2 (with the multimeter jack common applied to F1 of the AVR) should be between 0.4 and 0.6 V, and vice versa (with the multimeter jack common applied to F2 of the AVR) should give... -
Page 10: Static Test Procedure
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs 9 - STATIC TEST PROCEDURE 230 V 60 W Lamp 250 VAC 50 Hz R121 Variac 2K Potentiometer OR WIRE LINK This test should only be attempted after First keep the “S”... -
Page 11: Dimensions
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs 10 - DIMENSIONS 2 x HOLES Ø 6 mm COUNTER BORE 9 mm x 5 DEEP 52.5 mm 52.5 mm... -
Page 12: Spare Parts
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs 11 - SPARE PARTS 11.1 - Designation Description Type Code 5107292 R121 11.2 - Technical support service Our technical support service will be pleased provide additional information you may require. -
Page 13: Disposal And Recycling Instructions
Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs Disposal and recycling instructions committed limiting environmental impact of our activity. We continuously monitor production processes, material sourcing and products design to improve recyclability and minimise our environmental footprint. - Page 14 Installation and maintenance Electric Power Generation 5657 en - 2018.01 / a R121 AVRs...
- Page 15 Service & Support Our worldwide service network of over 80 facilities is at your service. This local presence is our guarantee for fast and efficient repair, support and maintenance services. Trust your alternator maintenance and support to electric power generation experts. Our field personnel are 100% qualified and fully trained to operate in all environments and on all machine types.
- Page 16 Linkedin.com/company/Leroy-Somer Twitter.com/Leroy_Somer_en Facebook.com/LeroySomer.Nidec.en YouTube.com/LeroySomerOfficiel 5657 en - 2018.01 / a...