AVR Stamford MX321 Original/Genuine

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Deskripsi AVR Stamford MX321 Original/Genuine

AVR Stamford MX321 menyediakan lingkaran kontrol tertutup dengan merasakan tegangan output alternator pada belitan stator utama dan menyesuaikan kekuatan medan stator exciter. Tegangan yang diinduksi dalam rotor exciter, disearahkan oleh dioda yang berputar, memagnetisasi medan utama yang berputar yang menginduksi tegangan pada belitan stator utama. AVR dengan eksitasi terpisah ditenagai secara independen dari Permanent Magnet Generator (PMG) terpisah, yang dipasang pada poros rotor alternator utama. Tegangan diinduksi dalam stator PMG oleh rotor magnet permanen.

Spesifikasi AVR Stamford MX321 :

Sensing Input
Voltage : 190 VAC to 264 VAC maximum, 2 or 3 phase
Frequency : 50 Hz to 60 Hz nominal

Power Input
Voltage : 170 VAC to 220 VAC maximum, 3 phase, 3 wire
Current : 3 A per phase
Frequency : 100 Hz to 120 Hz nominal

Power Output
Voltage : maximum 120 VDC
Current : continuous 3.7 A, transient 6 A for 10 seconds
Resistance : 15 Ω minimum

Regulation
+/- 0.5% RMS

Thermal Drift
0.02% per 1°C change in AVR ambient temperature

Soft Start Ramp Time
0.4 s to 4 s

Typical Response
AVR response in 10 ms
Field current to 90% in 80 ms
Machine Volts to 97% in 300 ms

External Voltage Adjustment
+/-10% with 5 kΩ, 1 W trimmer

Under-Frequency Protection
Set point 95% Hz
Slope 100% to 300% down to 30 Hz

Unit Power Dissipation
18 W maximum

Analogue Input
Maximum input : +/- 5 VDC
Sensitivity : 1V for 5% alternator Volts (adjustable)
Input resistance : 1 kΩ

Quadrature Droop Input
10 Ω burden
Maximum sensitivity : 0.22 A for 5% droop, zero power factor
Maximum input : 0.33 A

Current Limit Input
10 Ω burden
Sensitivity range : 0.5 A to 1 A

Over-Voltage Detection
Set point : 300 VDC
Time delay : 1 s (fixed)
Circuit breaker trip coil voltage : 10 VDC to 30 VDC
Circuit breaker trip coil resistance : 20 Ω to 60 Ω

Over-Excitation Protection
Set point : 75 VDC
Time delay : 8 s to 15 s (fixed)

Environmental
Vibration : 20 Hz to 100 Hz : 50 mm/sec, 100 Hz to 2 kHz : 3.3g
Operating temperature : -40°C to +70°C
Relative humidity : 0°C to 70°C : 95%
Storage temperature : -55°C to + 80°C

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