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Related Manuals for Nidec LEROY-SOMER R450
Summary of Contents for Nidec LEROY-SOMER R450
- Page 1 R450 50 Hz EXT FREQ 60 Hz SETTING 380V 220 110 0V E- E+ Z2 X1 Z1 X2 R450 Installation and maintenance...
- Page 2 Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 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 installation and maintenance manual.
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Page 3: Table Of Contents
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 CONTENTS 1 - GENERAL INFORMATION ....................4 1.1 - Description ........................4 1.2 - Characteristics ......................4 2 - POWER SUPPLY ....................... 5 2.1 - AREP excitation system ....................5 2.2 - PMG excitation system ....................6 2.3 - SHUNT or separate excitation system ................7 3 - TECHNICAL CHARACTERISTICS ..................8... -
Page 4: General Information
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 1 - GENERAL INFORMATION 1.2 - Characteristic The connection is realised by “Faston” 1.1 - Description connectors and the voltage sensing is single The R450 AVR is supplied in a casing - phase. -
Page 5: Power Supply
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 2 - POWER SUPPLY characteristic), the second one has a voltage proportional to the stator current Both the SHUNT/AREP & PMG excitation (compound characteristic : Booster effect). systems are controlled by the AVR. -
Page 6: Pmg Excitation System
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 2.2 - PMG excitation system The AVR monitors the alternator output voltage by adjusting the excitation current. With PMG excitation, a permanent magnet The rotating switch should be in the PMG generator (PMG) added to the alternator position (see 3.2.3). -
Page 7: Shunt Or Separate Excitation System
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 2.3 - SHUNT or separate excitation system With SHUNT excitation, the AVR is powered by the main winding (100V to 140V - 50/60Hz) by using X1, X2 on the AVR. The rotating switch should be in the SHUNT/ AREP position (see 3.2.3). -
Page 8: Technical Characteristics
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 3 - TECHNICAL CHARACTERISTICS 3.2.1.2 - Quadrature droop Quadrature droop adjustment 3.1 - Electrical characteristics potentiometer P4 within a range: - Maximum power supply: 150V - 50/60 Hz - From 0 to 8% with a PF=0.8 for 400V - Rated overload current: 10 A - 10 s applications. - Page 9 Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 Overrun indications: WARNING WARNING One green LED: - Lights up when the excitation current is limitation threshold must below the continuous operation threshold adjustable between 1 and 5.5 A. The It signals the AVR normal operation.
- Page 10 Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 I exc(A) Diagram 2 2.9x I (Maximum current I exc) threshold (max. 9.5 A) threshold (1...5.5A) t(s) Shutdown Activation of 90 s. tempo elapsed : application 0.5 ~ 0.7 90 s.
- Page 11 Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 3.2.2 - Rotating switch selection: LAM 3.2.3 - Rotating switch: excitation type and U/F and time response 50Hz EXT.FREQ. AREP SET. MODE 1 RAPIDE NORMAL FAST NORMAL MODE 2 ONLY FOR SPECIAL...
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Page 12: U/F And Lam Functions
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 3.3 - U/F and LAM function 3.3.2.2 - Soft voltage recovery function During load impacts, the function helps the 3.3.1 - Frequency variation compared genset to return to its rated speed faster with with voltage (without LAM) a gradual increase in voltage according to the principle:... -
Page 13: Avr Options
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 3.4.3 - Power • Possibility of coupling to the mains of alternators already running in parallel (4F) - R729 module: same as R726 with additional functions. Variation in the load •... -
Page 14: Installation - Commissioning
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 4 - INSTALLATION - COMMISSIONING a) Initial potentiometer settings (see table below) 4.1 - Electrical checks on the AVR - Check that all connections have been Action Factory setting Pot. - Page 15 Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 h) Check LAM operation: depending on the 4.2.2 - Max. excitation adjustment (excitation ceiling) rotating switch selection. In standard setting, the potentiometer P3 is i) Vary the frequency (speed) around 48 or in maximum position.
- Page 16 Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 The exciter is switched off by disconnecting the AVR power supply (1 wire on each auxiliary winding) - contact rating 16 A - 250 V A.C. When the excitation current is set to the Connection is identical for resetting the AVR rated value, a voltage dip is observed in internal protection.
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Page 17: Electrical Faults
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 4.3 - Electrical faults Fault Action Effect Check/Cause The alternator builds up and its voltage is still correct when the - Lack of residual magnetism battery is removed No voltage at Connect a new battery The alternator builds up but its... -
Page 18: Spare Parts
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 5 - SPARE PARTS 5.1 - Designation Description Type Code R450 AEM 110 RE 031 5.2 - Technical support service Our technical support service will be pleased provide additional information you may require. -
Page 19: Disposal And Recycling Instructions
Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450 Disposal and recycling instructions All materials listed above need special committed limiting treatment separate waste from environmental impact of our activity. We reclaimable materials and should be continuously monitor production... - Page 20 Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450...
- Page 21 Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450...
- Page 22 Installation and maintenance Electric Power Generation 4531 en - 2024.01 / l R450...
- Page 23 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 24 www.leroy-somer.com/epg Connect with us at: 4531 en - 2024.01 / l...
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