AVR R438 Automatic Voltage Regulator for Leroy Somer Alternator

• Conditions of Use: Marine, Land Use
• Usage: Emergency Crew, Standby Unit, Common Units
• Output Type: AC Three Phase
• Cooling Method: Wind Cooling
• Installation Method: Fixed
• Generator Type: Diesel Generator
• Model NO.: R438
• Alternator Model: Stamford
• Gross Weight: 0.5 Kg
• MOQ: 1 PCS
• Application: Generator, Land Use
• Transport Package: Standard Export Package
• Trademark: Stamford
• Origin: China
• HS Code: 8501610000
• Production Capacity: 10000 PCS / Month

Product Description

AVR Model: R438
 

Technical Data:

·Voltage regulation: +/-0.5% at steady state and constant speed

·Phase to phase voltage sensing

·Controls by transistor means the regulation quality is independant of load applied

·Integrated "LAM" system to cope with increased loads applied to the engine

·Suitable for high levels of viration and harsh environments

·The R438 is compatible with other modules giving additional functions

·Standard power supply: AREP or PMG

·Rated overload current: 8A-10s

·Electronic protection(overload,shortcircuit on opening of voltage sensing circuitexcitation overload current for 10 seconds then return to approximately 1A).

·Fuse: F1 on X1,X2.8A;slow-250V

·Voltage sensing: 5VA isolated via transformer

·0-110V terminals=90-140V

·0-220V terminals=170-260V

·0-380V terminals=340-520V

·Voltage regulation +/-1%

·Normal or rapid response time via ST2 jumper

·Voltage adjustment via potertiometer P2

·Current sensing(parallel operation): C.T. 2.5VA cl1,sencondary 1A(optional)

·Quadrature drop adjustment via potertiometer P1

·Max,excitation current adjustment via P5

·Applications to Alternators: LSA 42.2,43.2,44.2

·Compatible with the AREP or PMG exitation system

Detailed Picture Showing: 


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Our Advantages:

• Our generator parts factory has more than 20 years experienced to produce and widely used in many generators already.
• We can provide full range of generator parts that you want:

             Multiple brands of generator AVR
             Multiple brands of generator controller
             Multiple brands of filters
             Multiple brands of turbochargers
             CCEC cummins parts
             DCEC cummins parts
             Imported cummins parts

• Offer OEM and Technical support
• Excellent quality control and after sales service
• Flexible payment terms:  T/T, L/C, Paypal and West Union

Warranty Policy:

• Warranty:  6 months from the date of shipment
• The items share free repairs or replacement during warranty
• Customer is responsible for the freight come-and-forth and the custom tax. 
• You may consider to send the defective item with a economical way, and we send back the repaired items with your new order together. 
• pls send the item back without packing To save the cost
• Pls provide the defective appearance and related invoice number. 
• We do not repair or replace item after expiration.