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.
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Stamford AVR AS440 | Original
Features include:
- Stability adjustment
- Optimum response selection
- Under frequency roll off adjustment
- Droop adjustment
- Trim adjustment
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0 out of 5(0)SENSING and POWER INPUT
- Voltage: 100-264 Vac 1 phase
- Frequency: 50-60 Hz Nominal
OUTPUT
- Voltage: 82 Vdc @ 200 Vac power input
- Voltage: 45 Vdc @ 110 Vac power input
- Current: Continuous 5A
REGULATION
- +/- 1.0%
THERMAL DRIFT
- 0.03% per deg. Change in AVR ambient
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0 out of 5(0)SENSING INPUT
Voltage: 190 – 264V ac max, 2 or 3 phase
Frequency: 50 – 60 HZ nominal
POWER INPUT (PMG)
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Current: 3A/phase
Frequency: 100 – 120 Hz nominal
OUTPUT
Voltage: max 120V dc
Current: continuous 3.7 A
Intermittent 6A for 10 secs.
Resistance: 15 ohms minimum
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0 out of 5(0)Fuse: F1on X1,X2.10A;slow-250V
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- 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)
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0 out of 5(0)- EXACT GENERIC REPLACEMENT – 1 Year Warranty
- Sensing Input: Terminal 1,2 3,4 5,6 Can be connected to Y or 220~480VAC Single Phase 50/60HZ.
- Power Input:50~280VAC (1,2) 50/60HZ.
- Output Voltage: Maximum 90VDC @ 220VAC Harmonic Wave.
- Output Current: Continuous 6A Maximum 8A for 10 sec.
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AVR SR7-2G (SR-7) | Generic
AVR SX440 | Generic Replacement AS440








