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Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. This manual concerns the alternator A.V.R. 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.
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. CONTENTS 1 - GENERAL INFORMATION ....................4 1.1 - Description ........................4 1.2 - Characteristic ....................... 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...
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 1 - GENERAL INFORMATION 1.2 - Characteristic The connection is realised by “Faston” 1.1 - Description connectors and the voltage sensing is The R450 AVR is supplied in a casing single - phase.
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 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.
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 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).
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 2.3 - SHUNT or separate excitation system With SHUNT excitation, the AVR is powered by the main winding (100V to 140V - 50/60 Hz ) by using X1, X2 on the AVR. The rotating switch should be in the SHUNT/ AREP position (see 3.2.3).
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 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.
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Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. Overrun indications: 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.
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Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 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.
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Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 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...
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 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:...
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 3.4.3 - Power • Equalization voltages before paralleling (3 F). • Possibility of coupling to the mains of alternators already running in parallel (4F). Variation in the load - R729 module: same as R726 with additional functions.
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 4 - INSTALLATION - COMMISSIONING Action Factory setting Pot. 4.1 - Electrical checks on the AVR Voltage - Check that all connections have been minimum fully 400 V - 50 Hz made properly as shown in the attached anti-clockwise...
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Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. i) Vary the frequency (speed) around 48 or However, for applications requiring an 58 Hz according to the operating frequency, overload protection (see 3.2.1.4), the and check the change in voltage from that excitation ceiling must be adjusted by using observed previously (~ 15%).
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Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 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...
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 4.3 - Electrical faults Fault Action Measurements Check/Cause The alternator builds up and its - Lack of residual magnetism voltage is still correct when the battery is removed No voltage at Connect a new battery The alternator builds up but its...
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. 5 - SPARE PARTS 5.1 - Designation Description Type Code Voltage regulator R450 AEM 110 RE 031 (AVR) 5.2 - Technical support service Our technical support service will be pleased to provide any additional information you may require.
Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. Disposal and recycling instructions The oil and grease from the lubrication We are committed to limit the environmental system should be considered as a hazardous impact of our activity. We continuously waste and has to be handled according to survey our production processes, material local legislation.
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Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. CALL US TODAY REQUEST A QUOTE SHOP ONLINE 1-888-POWER-58 generators@genpowerusa.com www.genpowerusa.com/leroy-somer-avr/...
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Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. CALL US TODAY REQUEST A QUOTE SHOP ONLINE 1-888-POWER-58 generators@genpowerusa.com www.genpowerusa.com/leroy-somer-avr/...
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Installation and maintenance Electric Power Generation 4531 en - 2016.06 / h R450 A.V.R. CALL US TODAY REQUEST A QUOTE SHOP ONLINE 1-888-POWER-58 generators@genpowerusa.com www.genpowerusa.com/leroy-somer-avr/...
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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.
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4531 en - 2016.06 / h CALL US TODAY REQUEST A QUOTE SHOP ONLINE 1-888-POWER-58 generators@genpowerusa.com www.genpowerusa.com/leroy-somer-avr/...
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