Stamford AVR AS440 | Original
Features include:
- Stability adjustment
- Optimum response selection
- Under frequency roll off adjustment
- Droop adjustment
- Trim adjustment
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The AS440 ( + Kit replaces SX440 ; SA465) is a half-wave phase-controlled thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator. In addition to regulating the generator voltage, the AVR circuitry includes underspeed and sensing loss protection to ensure safe, reliable control of the generator.
Related products
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Leroy Somer AVR
Leroy Somer AVR R438 | Original
Fuse: F1on X1,X2.10A;slow-250V
- Voltage sensing : 5 VA isolated via trans- former • 0-110 V terminals = 95 to 140 V • 0-220 V terminals = 170 to 260 V • 0-380 V terminals = 340 to 520 V for other voltages, a transformer should be used.
- Voltage regulation ± 0.5%
- Normal or rapid response time via jumper ST2 (see below)
- Voltage adjustment via potentiometer P2 or apply a DC voltage of ± 1 V on the terminals of the external potentiometer
- Current sensing: (parallel operation): input S1, S2 intended for 1 C.T. Š 2.5 VA cl1, secondary 1A (optional)
- Quadrature droop adjustment via potentio- meter P1
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SKU: R438 -
AVR | Generic Replacements
AVR SX460 | Generic
Sensing Input
Voltage: 95 – 132 VAC or 190 – 264 VAC
1 phase, jumper selectable. Frequency 50/60 Hz, selectable
Output
Voltage: Max. 90 VDC @ 207 VAC
Current: Continuous 4A
Intermittent 10A for sec
Resistance: Min. 15 ohm
Voltage Regulation:< ± 1.5 % ( with 4% engine governing)
Voltage Build-Up: Residual voltage at AVR terminal > 5 VAC
Thermal Drift: 0.05% peer C change in AVR ambient.
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SKU: SX460G -
AVR | Generic Replacements
AVR MX341 | Generic
- SENSING INPUT
Voltage: 190- 264V ac max, 1 phase, 2 wire
Frequency : 50 – 60 Hz nominal
POWER INPUT (PMG)
Voltage 140-220V ac max, 3 phase, 3 wire
Current: 3A/phase
Frequency: 100 120 Hz nominal
OUTPUT
Voltage: max 120V dc
Current: continuous 2.7 A
Intermittent 6a for 10 secs.
Resistance: 15 ohms minimum
REGULATION: +/- 1%
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SKU: MX341G - SENSING INPUT
-
AVR | Generic Replacements
AVR VR6 | Generic
- Power: Shunt Excited
- Input: 180-280 Vac, 50/60 Hz, 1 OR 3 phase
- PMG Excited 63-105 Vac 100/240 Hz 3 phase
- Sensing input: 180-240 Vac, 50/60 Hz 1 OR 3 phase
- CT input: 1 or 5 Aac 50/60 Hz
- ACC input: +/- 3 Vdc. Output 65 Vdc @ 12 Adc
- Unit Type: Potted – Rugged
- Weight: 1.5 kgSize: 9.4 in x 7.1 in x 3.5 in
- 4 mounting holes
- 1 Year Warranty
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SKU: VR6G
