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STAMFORD AVR MX450
MX450 is a harlf-wave phase-controlled thyristor type Automatic Voltage Regulator(avr)and forms parts of the excitation system for a brushless generator.
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Model NO. |
MX450
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Sensing Input
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Voltage 120(95~132) / 240(190~264) VAC 1 phase 2 wire jumper selectable
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Frequency 50/60 Hz jumper selectable
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Output
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Voltage Max. 90 VDC @ 207 VAC input
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Current Continuous 4A, Intermittent 6A for 10 sec.
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Resistance Min. 15 Ohm
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Voltage Regulation
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< ±1% (with 4% engine governing)
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Voltage Build-up
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4 Volts at AVR terminals
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Soft Start Ramp Time
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2 sec.
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External Volts Adjustment
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±10% with 1 K Ohm 1 watt trimmer
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Unit Power Dissipation
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Max. 10 watt
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Thermal Drift
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0.04% per °C change in AVR ambient
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Under Frequency Protection
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Set point 95% Hz Slope: 170% down to 30 Hz
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(Factory Setting)
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Slope 170% down to 30 Hz
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Environment
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Operating Temperature : -40~70 °C
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Storage Temperature : -40~85 °C
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Relative Humidity : Maximum 95%
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Vibration : 3.3G @ 100~2 KHz
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AVR Controls Functions
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VOLT : Voltage Adjustment
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STAB : Stability Adjustment
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UFRO : UFRO Knee Point Set
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Analogue input
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Maximum input +/-5Vdc
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Sensitivity 1V for 5% Generator Volts
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Input resistance 1k ohm
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Quadrature droop input
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10 ohms burden
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Max. sensitivity: 0.07 A for 5% droop 0PF
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Max. input: 0.33A
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Dimensions
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150 (L) x 100.0 (W) x 45.0 (H) mm
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Weight
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700g ±2%
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We provide:
Stamford: SX440;SX460;MX321;MX341;AS440;AS480
Marathon: SE350
