app; application
SPM-D11 is a synchronization device based on microprocessor control technology, which is compatible with Woodward or other brands of governors and regulators, and is suitable for single-phase or three-phase alternators.
SPM-D11 synchronizer can provide analog or switch offset signals for automatic control functions such as frequency, phase angle, and voltage matching. SPM-D11 has the functions of circuit breaker control, automatic load distribution, power factor control, and generator set protection.
8440-1705 Model Description
8440-1705 is a synchronizer module in the SPM-D11 series. Based on microprocessor design, this model is used for three-phase alternators, providing automatic phase matching, frequency matching, and voltage matching functions. 8440-1705 is equipped with discrete and analog bias outputs, which integrate the synchronous control of circuit breakers, load and power factor control capabilities, and support synchronous load distribution and generator protection. The module has the function of parallel operation of power supply, provides active power control and true root mean square power calculation, and also includes soft unloading ability and power factor setpoint control.
It should be noted that 8440-1705 belongs to Woodward's old H8 microprocessor platform product, and the official has stopped accepting new orders. The final order date is January 23, 2015, and the announced maintenance window ended in November 2018. Woodward's alternative reference scheme is easYgen-2300-1/P1 (order number is 8440-2122), but this alternative belongs to platform migration, not plug-and-play replacement, and needs to be reconnected and configured.
describe
synchronizing function
Phase matching or frequency-voltage synchronization
Two-phase induction between generator and bus
Optional operation modes (Run, Check, Allow, Prohibit)
Synchronous detection
Synchronous time monitoring
Active/reactive power distribution
Grid-connected operation
Active power control
Power root mean square calculation
Generator active power parameter setting (2 groups) or through 0/4–20 mA signal
Flexible unloading
Power factor control
Power factor can be set.
Output power limit through relay
Single machine operation
frequency control
voltage control
Pressureless bus operation
Close the circuit breaker at different time periods as required.
Defensive function
Generator single-phase current induction
Two-phase voltage mutual inductance of generator
Generator Overvoltage/Undervoltage (59/27)
Generator Overfrequency/Underfrequency (81O/U)
Generator reverse power/low limit power (32R/F)
Generator overload (32)
Control output
Standard edition:
Control the speed/load by switching up/down.
The voltage/power factor is controlled by the up/down of the switch value, or the analog output is biased by the voltage/speed. It can be set freely (±1 V, ±3 V, 0–5 V, 0.5-4.5 V, ±10 V, 5 V, 0–±20 mA, etc.).
The speed bias can be set to 500 Hz/PWM output, and the voltage level can be adjusted. Two paths of speed or voltage bias boost/output operation characteristics can be set.
Two-line LCD display, which can display operation parameters and reports.
warning message
Synchronous detector
Display control and circuit breaker status
Multi-level password protection parameters
Panel direct setting or PC setting
Supports English and German
Related models (listed in the document)
Woodward SPM-D1145B/LSXR / SPMD1145BLSXR
Woodward MFR13 / MFR13
Woodward MFR 1371M / MFR1371M
Woodward Dyn1-10654-000-0-24 / Dyn1106540 00024
Woodward BN1-400 / BN1400
