Uncategorized
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 R448 | Original
- Voltage regulation ± 0.5%
- Short circuit capability: 3 x Irated for 10 seconds (AREP or PMG excitation)
- Voltage sensing: 95 to 140 volts (50/60 Hz) or 170 to 260 volts (50/60 Hz) or 340 to 520 volts (50/60 Hz)
- Response time: Normal (1 sec) for ± 20% voltage variation or Rapid (0.3 sec) for ± 20% voltage variation
- Remote voltage adjustment range of: ± 5%
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SKU: R448 -
Leroy Somer AVR
Leroy Somer AVR R449 | Original
The regulator includes:
- A main terminal strip (10 terminals)
- A secondary terminal block (5 terminals)
- A frequency selection terminal block (3 terminals) – A quadrature droop potentiometer
- A voltage potentiometer
- A stability potentiometer
- A maximum excitation potentiometer
- 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 selecti
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SKU: R449 -
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
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AVR | Generic Replacements
AVR R448 | Generic
- Voltage regulation ± 0.5%
- Short circuit capability: 3 x Irated for 10 seconds (AREP or PMG excitation)
- Voltage sensing: 95 to 140 volts (50/60 Hz) or 170 to 260 volts (50/60 Hz) or 340 to 520 volts (50/60 Hz)
- Response time: Normal (1 sec) for ± 20% voltage variation or Rapid (0.3 sec) for ± 20% voltage variation
- Remote voltage adjustment range of: ± 5%
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SKU: R448G
