Diesel Engine Generator Auto Spare Parts AVR Replacement R220 R230 R250 R438 R448 R449 R450 R450t Automatic Voltage Regulator Leroy Somer
Fuan Safe Electronic Co., Ltd.
Fujian, China
Last Login Date:
Sep 03, 2024
Main Products:
AVR, Generator Parts & Accessories, Generator Speed Controller, ATS, Generator Battery Charger, Solenoid
Product Description
Company Info
Basic Info.
of Use
Method
Method
Type
Product Description
Ø Steady state voltage regulation ± 0.5%
Ø Short circuit capability: 3 x Irated for 10 seconds (AREP or PMG excitation)
Ø Voltage sensing:
0-110v Terminals = 95 to 140 volts (50/60 Hz) or
0-220v Terminals = 170 to 260 volts (50/60 Hz) or
0-380v Terminals = 340 to 520 volts (50/60 Hz)
Ø Response time:
Normal (1 sec) for ± 20% voltage variation or Rapid (0.3 sec) for ± 20% voltage variation
Ø Remote voltage adjustment range: ± 5%
Load Adjustment Module (LAM):
On load impact, the rotation speed of the generator set decreases. When it passes below the preset frequency threshold, the LAM causes the voltage to drop by approximately 15% and consequently the amount of active load applied is reduced by approximately 25% until the speed reaches it's rated value again
Adjustment capability of R449 Leroy Somer Alternator AVR:
The Leroy Somer R449 Voltage Regulator features the following adjustment capabilities (Please note that no adjustments should be made prior to careful consultation of the alternator installation and maintenance manual):
n Quadrature droop adjustment
n Alternator output voltage adjustment
n Stability adjustment
n LAM Threshold (underspeed) adjustment
n Excitation ceiling adjustment
n Selection of single phase or three phase* voltage sensing
n Selection of normal or rapid response time
n 50 Hz or 60 Hz frequency option
n Remote voltage adjustment option
LAM enable/disable option
Package List:
1* Automatic Voltage Regulator
R449 Automatic Voltage Regulator (AVR) provides closed loop control of the alternator output voltage by regulating the exciter field current. Which can be powered by either AREP or the PMG field excitation systems and is fitted as standard on8100 Series Alternators & 9100 Series Alternators.It mainly used on brushless generator from 50-300kw.
Sensing Input | Voltage:95-480VAC |
Power Input | Voltage:40-150VAC,3 phase |
Magnetic Field Output Voltage | Max.160VDC at 120VAC Input |
Magnetic Field Output Current | Max.10A |
Pressure Regulating Accuracy | <+/-0.5% RMS with 4% engine governing |
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FAQ
Q1,OEM & ODM
A:According to your requirements,we can supply OEM & ODM service for you if necessary,customized logo,color and packaging are all available..
Q2,How can I get a quotation?
A:Leave us massage with your purchase requirements and we will reply you within one hour on working time.And you may contact us directly by Trade Manager.
Q3,What's your delivery time of bulk order?
A:It depends on your specific order and usually it takes 5 to 20 days.Some small order always has stock in our warehouse.
Further question welcome to contact us at any time!