Related Manuals for Nidec LEROY-SOMER R120
Summary of Contents for Nidec LEROY-SOMER R120
- Page 1 OPEN IN 60Hz R120 R120 Installation and maintenance...
- Page 2 Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 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 All servicing or repair operations perfor- installation and maintenance manual.
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Page 3: Table Of Contents
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 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 ........................7 5.1 - V-TRIM (V) ........................ -
Page 4: General Description
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 1 - GENERAL DESCRIPTION 2 - OPERATION OF THE AVR The R121 automatic voltage regulator The AVR is powered by the line-to-neutral (AVR) is a compact, high-performance terminal of the AC generator, with 240 VAC rms at 50 Hz or 60 Hz. -
Page 5: Technical Specification
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 3 - TECHNICAL SPECIFICATION 15) Overexcitation protection set point: 85 VDC. 1) Sensing input - Voltage: 277 VAC ± 10% for 1-phase, 16) Protection fuse: 4 A, 240 VAC. 415 VAC line-to-line ±... -
Page 6: Main Function Of The Avr
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 4 - MAIN FUNCTION OF THE AVR The AVR is powered by the line-to-neutral terminals of the AC generator with 240 VAC at 50/60Hz. The regulated sensing voltage is based on the AVR input power. STATOR: 6 wires (T1 to T6 identification) MAIN FIELD Armature... -
Page 7: Avr Settings
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 The AVR builds up the generator voltage 5.2 - UNDER FREQUENCY KNEE from its residual voltage to rated voltage. POINT SETTING (UF) When the generator is loaded, the sensed This function is provided to protect the AC generator from sustained low speed voltage decreases and generates an error... -
Page 8: Troubleshooting Chart
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 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 is less than 2.5 VAC (L-N), disconnect the AVR and N terminals and connect a 24 VDC battery, keeping F1 as... -
Page 9: Multimeter Checks
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 8 - MULTIMETER CHECKS The resistance between U and N1 should be between 200 kΩ and 260 kΩ. Open circuit Equipment: Digital multimeter, Type: indicates AVR failure. During a static test, MECO or equivalent. -
Page 10: Static Test Procedure
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 9 - STATIC TEST PROCEDURE For 3-phase circuit AVR (3PH) Model: R120 0-500 V LAMP 100 W 230 V VARIAC 8A, 415 V STATIC TEST CONNECTION DIAGRAM OF 3PH AVR 5. - Page 11 Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 For 1-phase circuit AVR (1PH) Model: R120 0-300 V LAMP 100 W 230 V VARIAC 8 A, 230 V STATIC TEST CONNECTION DIAGRAM OF 1PH AVR 5. It is difficult to prescribe a static test for This test should only be attempted after checking the stability, as this is more easily making sure that the AVR has passed all...
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Page 12: Dimensions
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 10 - DIMENSIONS 94 mm 82 mm OE UF SL OPEN IN 60Hz R120 2 x holes Ø 5.5 x 83 mm... -
Page 13: Spare Parts
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 11 - SPARE PARTS 11.1 - Designation Description Type Code R120 4969966 11.2 - Technical support service Our technical support service will be pleased provide additional information you may require. For all spare parts orders or technical support requests, send your request to service.epg@leroy-somer.com or your... -
Page 14: Disposal And Recycling Instructions
Installation and maintenance Electric Power Generation 5243 en - 2022.02 / l R120 All materials listed above need special Disposal and recycling instructions treatment separate waste from committed limiting reclaimable materials and should be environmental impact of our activity. We entrusted to specialist recycling companies. - 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 - 2022.02 / l 5243 en...
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