Description
AVR LEROY SOMER R449
Bộ điều áp tự động Avr Leroy Somer R449
The Avr Leroy Somer R449 voltage regulator is of a shunt type. It is designed to fit as standard on A50 to A 54 alternators. It can be supplied with power either by a power VT, or by the AREP field excitation system, or by a single-phase or 3-phase PMG.
The electronic components mounted in a plastic casing are sealed with opaque elastomer. Connection is via 2 connectors.
The regulator includes:
– A main terminal strip (10 terminals) J1
– A secondary terminal block (5 terminals) J2
– A frequency selection terminal block (3 terminals) J3
– A quadrature droop potentiometer P1
– A voltage potentiometer P2
– A stability potentiometer P3
– A maximum excitation potentiometer P5
– A sensing selection jumper ST1 (single/3-phase with an external module)
– A response time jumper ST2
– A frequency selection jumper ST3
– An external voltage setting jumper ST4
– A LAM (load adjustment module) jumper ST5 From R449 Version E number 10,000, this jumper will be removable.
– A selection jumper 13% 25% LAM ST10
– Bend at 65 Hz (U/F) ST11 Two fuses (F1 and F2) are connected to this regulator; they are mounted in the alternator on terminal block C. Type: gG 10/38 16A 500V.
– ATQ20 (10x38US) 500 VAC UL/CSA Simplified diagram of a potentiometer: To adjust the potentiometer, check the actual position of the potentiometer stop.
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