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Accessories Center
Stanford generator parts


Detailed Description:

1. British STAMFORD Stanford UC, BC, HC, LV6 series generator AVR automatic voltage regulator (AS440, SX440, SX460, MX341-2, MX321-2, MX450, AS480, EA440-T), Stanford varistor, Stanford Isolation transformer 450-42100 E000-22070, Stanford generator electric heater, Stanford rectifier kit, Stanford generator and car transformer.

Stanford Generator MX341 AVR

-AVR setting 1 Frequency selection terminals
50Hz operation connection 50-C 60Hz operation connection 60-C
2 Stability selection terminals
Below 90KW connect A-C 90KW-550KW connect B-C
3Excitation lnterruption Link
The field breaker is closed. If this option is not installed, connect K1-K2 in the auxiliary connection (K1-K2 is connected by a wire when the AVR leaves the factory).
4 Sensing selection termunals
Connection 2-3 Connection 4-5 Connection 6-7
Two AVR connections
1 P1 P2 P3 Three-phase power input for excitation generator
2 XX X is AVR excitation power output
3 2 3 is the AVR feedback voltage input (220V) 1 2 is the external voltage trimming (connected 1 2 without external trimming)
4 S1 S2 are three AVR adjustments for parallel current sensing input (adjusted at the factory, users only need to make the following adjustments if necessary):
1. If the output voltage does not match the voltage adjustment, turn the voltage adjustment potentiometer clockwise to increase the output voltage; otherwise, the opposite is true.
2 Frequency setting Turn the engine speed to 47HZ, turn the UFRO potentiometer counterclockwise to make the indicator diode light up and adjust the engine speed.
3 Overcurrent reduction excitation causes the generator to rotate the excitation trip potentiometer clockwise at the rated power to make the indicator diode light, and then rotate about 5 degrees counterclockwise.

Stanford generator AS440AVR

AS440AVR is a half-wave phase-controlled thyristor-type voltage regulator, and it is also an integral part of the brushless generator excitation system.
Technical Parameters:
Input sensing:
Voltage jumper selector
100-130 Vac / phase or
190-264 Vac / phase rated frequency 50-60 Hz

Power input:
Voltage: 100-264 Vac / phase Rated frequency: 50-60 Hz

Output:
Voltage: 82 V dc @ 200 V ac
Continuous current: 4A

Instantaneous current: 7.5 amps, 10 secondsResistance: 15 ohms / minute
(When the input voltage is lower than 175 ac, the resistance is 10 ohms / minute)

Adjustment: ± 1.0%

Thermal drift: 0.03% / ° C change in voltage regulator
Voltage regulator response time 20ms Rated current: 90%, 80ms Local voltage: 97%, 300ms Applied voltage adjustment: 1kohm 1W microcapacitor adjustment ± 10%

Stanford generator SX440AVR

Detect input

Voltage: 190 ~ 264VAC, single-phase two-wire frequency: 50 / 60Hz, select by jumper copper

DROOP voltage drop input

Sensitivity: 0.07A corresponds to 5% voltage drop (when PF = 0)
Maximum input: 0.33A

Magnetic field output

Voltage: 207VAC input, maximum 90VDC
Current: 4A continuous, 10A discontinuous within 10 seconds
Resistance: 15Ω minimum

Voltage regulation <± 1% RMS (with engine speed variation within 4%)

The voltage is established based on the residual magnetic voltage of the AVR input terminal.

External voltage adjustment ± 8% when using 1KΩ, 1Watt potentiometer

Slow voltage settling time 2 seconds power consumption max. 12Watt

Voltage correction (analog input) maximum input: ± 5VDC
Sensitivity: 5% adjustable generator voltage input resistance per 1VDC: 1KΩ

Stability of temperature difference 0.05 ° C voltage drift per ° C

Low frequency protection Turning point: 95% Hz (factory setting)
Slope: 170% at 30Hz

VOLT: Adjust the voltage
STAB: adjust stability
UFRO: Adjusting the turning point for low frequency protection
DROOP: Set pressure drops to 5% (PF = 0)
TRIM: Optimized voltage correction sensitivity
DIP: adjust voltage / frequency ratio

Dimensions: 150.0 x 135.0 x 40.0 mm

Stanford generator SX460AVR

Voltage establishment: Automatically establish voltage when the remanence is greater than 25Hz
Input power: AC95 ~ 132V / 190 ~ 264V 50 / 60Hz
Output voltage: 90V DC maximum (when input AC207V)
Current: 4A (continuous) 6A10S (instantaneous)
Frequency compensation: built-in frequency protection circuit that reduces the output voltage when the number of engine revolutions decreases
Adjustment rate: better than 1%

This product is a special SVR for Stanford generators, suitable for Stanford non-parallel generators below 200KW.

Voltage establishment: Automatically establish voltage when the remanence is greater than 25Hz
Input power: AC95 ~ 132V / 190 ~ 264V 50 / 60Hz
Output voltage: 90V DC maximum (when input AC207V)
Current: 4A (continuous) 6A10S (instantaneous)
Frequency compensation: built-in frequency protection circuit that reduces the output voltage when the number of engine revolutions decreases
Adjustment rate: better than 1%

Stanford Generator MX321 AVR

1 AVR setting 1 frequency selection terminal
50Hz operation connection 2-3 60Hz operation connection 1-3
2Stability selection terminal
Connect A-C below 90KW 90KW-550KW Connect B-C Above 550KW Connect A-B
3 Excitation interrupt connection Excitation circuit breaker is closed. If this option is not installed, connect K1-K2 in the auxiliary connection (K1-K2 is connected by a wire when the AVR leaves the factory).
Two AVR connections
1 P1 P2 P3 Three-phase power input for permanent magnet generator
2 XX X is AVR excitation power output
3 6 7 8 is the AVR three-phase root mean square feedback voltage input (220V).
4 1 2 External trim of output voltage (connect 1 if there is no external trim).
5 E0 E1 voltage protection input (220V)
6 UV W's S1 and S2 current limit protection inputs, which can limit the fault current between any line or phase.
Three AVR adjustments (adjusted at the factory, the user office only needs to make the following adjustments if necessary):
1. If the output voltage does not match the voltage adjustment, turn the voltage adjustment potentiometer clockwise to increase the output voltage; otherwise, the opposite is true.
2 Frequency setting Turn the engine speed to 47HZ, turn the UFRO potentiometer counterclockwise to make the indicator diode light up and adjust the engine speed.
3 Overcurrent reduction excitation causes the generator to rotate the excitation trip potentiometer counterclockwise at the rated power to make the indicator diode light, and then rotate it clockwise about 5 degrees.
4 Over-voltage protection Turn the over-voltage adjustment potentiometer counterclockwise to make the indicating diode light up, and then turn it about 5 degrees clockwise.

Stanford generator AS480 AVR

Voltage adjustment rate <± 1.0% Select single-phase 120 / 240VAC detection voltage with jumper copper strips Select 50 / 60Hz with jumper copper strips Loss detection voltage protection circuit with low frequency protection (UFRO) and slow voltage build-up function LED Indication of low frequency

AS480 can be used in parallel units. It can be set with jumper copper plates to match different power generators. It is suitable for self-excitation brushless generators.

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