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9907-029 Woodward Generator Synchronizer

9907-029 Woodward Generator Synchronizer

Product Description

The 9907-029 is an automatic Speed and Phase Matching (SPM-A) synchronizer developed by Woodward, Inc. for automated paralleling of synchronous generators.

The module continuously monitors frequency, phase angle, and voltage differences between...

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Availability: Low stock: 99 left

SKU: 9907-029
Vendor: Woodward
Category: Generator Synchronizer
Related Series:

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Product Description

The 9907-029 is an automatic Speed and Phase Matching (SPM-A) synchronizer developed by Woodward, Inc. for automated paralleling of synchronous generators.

The module continuously monitors frequency, phase angle, and voltage differences between the generator and busbar. It then generates bias signals to the engine governor and Automatic Voltage Regulator (AVR) to achieve bumpless circuit breaker closure, reducing mechanical stress and electrical surges during synchronization.

Designed for continuous industrial operation, the 9907-029 features rugged analog circuitry with fast response characteristics and compatibility with multiple Woodward governor systems, including 2301A, 723, and EPG series controllers.

Technical Specifications

Parameter Specification
Model 9907-029
Function Speed and Phase Matching Synchronizer (SPM-A)
Input Voltage 115 VAC / 230 VAC (configurable)
Frequency Compatibility 50 Hz / 60 Hz
Phase Matching Accuracy ±10°
Voltage Matching Integrated AVR bias control
Control Output High impedance / EPG-compatible bias signals
Power Consumption 5 W
Operating Temperature –40°C to +70°C
Dimensions 31.5 × 21 × 4.7 cm
Weight 1.76 kg

Application

  • Emergency standby power systems

  • Microgrid and island-mode power plants

  • Marine propulsion power systems

  • Black-start generator synchronization

FAQ

Difference between 9907-029 and 9905 series?
The 9907-029 is part of the newer SPM-A architecture with improved thermal stability and optimized output impedance for modern governors.

Does it require external power?
No. The module is typically powered via PT sensing inputs from the generator and bus.

Can it perform voltage matching?
Yes. It includes circuitry to match generator voltage to bus voltage during synchronization.