Power Generation & Turbine Governing Solution — WOODWARD 9907-028 | 2301A Series
Where This Product Is Used
The WOODWARD 9907-028 Synchronizer Control is a core governing component deployed across critical power generation and industrial turbine applications. Typical installation environments include:
- Gas turbine generator sets — synchronizing generator output to grid frequency before paralleling
- Steam turbine power plants — speed and load control during startup, steady-state, and load-shedding events
- Diesel generator paralleling systems — isochronous load sharing in island-mode and grid-tie configurations
- Industrial compressor drives — maintaining shaft speed within tight tolerances under variable process loads
- Marine propulsion auxiliary systems — governor control for onboard diesel-electric generation
- Oil & gas wellhead and pipeline compression — remote-site prime mover governing where reliability is non-negotiable
Engineers specify the 9907-028 when a proven, field-hardened synchronizer control is required for paralleling operations in both utility-scale and distributed generation environments.
Technical Specifications
| Manufacturer | WOODWARD |
| Part Number | 9907-028 |
| Series | 2301A Speed Control / Synchronizer |
| Function | Synchronizer Control — speed matching & phase angle control for generator paralleling |
| Input Signal | Magnetic pickup (MPU) speed sensing; bus voltage sensing |
| Output | Actuator drive signal for fuel/throttle control |
| Operating Voltage | Refer to OEM documentation (typically 18–40 VDC) |
| Operating Temperature | –40°C to +70°C (storage); –20°C to +60°C (operating) |
| Weight | 1,750 g (as listed) |
| Enclosure / Form Factor | DIN-rail or panel-mount module (verify with OEM drawing) |
| Communication | Analog I/O; discrete contact inputs/outputs |
| Certifications | CE, UL (verify current listing with WOODWARD) |
Note: Always cross-reference with the official WOODWARD 9907-028 product datasheet and your system’s engineering drawings before installation.
Why Engineers Specify This Model
- Proven synchronizer logic — the 2301A platform has decades of field history in turbine governing; the 9907-028 inherits that reliability baseline
- Precise phase-angle matching — minimizes transient current surges at the moment of paralleling, protecting generator windings and bus equipment
- Adjustable droop and isochronous modes — supports both grid-connected (droop) and island-mode (isochronous) operation without hardware changes
- Robust analog I/O — compatible with a wide range of actuators and MPU sensors already installed in legacy and new-build systems
- Drop-in replacement compatibility — direct form-fit-function replacement for existing 9907-028 installations, minimizing downtime during maintenance windows
- Wide temperature tolerance — suitable for outdoor enclosures and harsh industrial environments without additional derating
Complete System Bill of Materials
The 9907-028 is typically integrated as part of a broader WOODWARD governing system. Common companion components include:
- WOODWARD 2301A Speed Control — primary speed/load controller paired with this synchronizer module
- WOODWARD EG-3P / EG-6P Actuator — electro-hydraulic actuator receiving the governor output signal
- Magnetic Pickup Unit (MPU) — gear-tooth speed sensor providing input to the 9907-028
- Bus voltage transformer (PT) — steps down bus voltage for synchronizer sensing input
- Generator voltage regulator (AVR) — coordinates with synchronizer for voltage matching prior to paralleling
- Synchronizing relay / check synchronizer — hardwired interlock confirming safe paralleling conditions
- DIN-rail power supply (24 VDC) — regulated DC supply for the control module
Contact [email protected] for BOM-level sourcing assistance across the full WOODWARD 2301A system.
Compliance & Industry Standards
- IEEE 1110 — Guide for Synchronous Generator Modeling Practices (paralleling context)
- IEEE C37.118 — Synchrophasor standard (reference for synchronizing accuracy requirements)
- IEC 60034 — Rotating electrical machines (generator protection context)
- NFPA 110 — Standard for Emergency and Standby Power Systems (generator set paralleling)
- ISO 8528 — Reciprocating internal combustion engine driven alternating current generating sets
- CE Marking — European conformity (verify current declaration with WOODWARD)
Konmask.com supplies OEM-sourced and rigorously inspected components. Compliance documentation available upon request for project submittals.
Quality Assurance & Sourcing
- OEM-grade sourcing — units are sourced from authorized WOODWARD distribution channels or verified surplus with full traceability
- Pre-shipment inspection — each unit undergoes visual inspection, label verification, and functional check before dispatch
- Serialization & traceability — serial numbers recorded and available for warranty and audit purposes
- Packaging — shipped in anti-static, shock-protected packaging with desiccant; original WOODWARD packaging preserved where available
- Warranty — 12-month warranty against manufacturing defects; contact support for terms
- Lead time — in-stock units ship within 1–3 business days; contact us for current availability
How to Source This Part
- Confirm your part number — verify 9907-028 against your system’s nameplate, wiring diagram, or OEM BOM
- Request a quote — email [email protected] or call +0086 19859288691 with your quantity and required delivery date
- Receive proforma invoice — we issue PI within 1 business day with pricing, lead time, and shipping options
- Place order & confirm payment — T/T, L/C, and other B2B payment terms available
- Shipment & tracking — DHL / FedEx / sea freight options; tracking number provided upon dispatch
- After-sales support — our technical team is available for installation guidance and commissioning questions
Application-Specific FAQ
Q: Can the 9907-028 be used for both gas and diesel engine-driven generators?
A: Yes. The synchronizer control is prime-mover agnostic — it responds to MPU speed signals and bus voltage regardless of the engine type driving the generator.
Q: Is this a direct replacement for an existing 9907-028 in a 2301A system?
A: Yes, the 9907-028 is a form-fit-function replacement. No wiring changes are required when replacing a like-for-like unit in an existing 2301A installation.
Q: What actuator types are compatible?
A: The 9907-028 output is compatible with WOODWARD EG-series electro-hydraulic actuators and other proportional actuators accepting a standard mA or VDC control signal. Verify actuator input range against the module’s output specification.
Q: Do you supply the full 2301A system or only individual modules?
A: Konmask.com can source individual modules (including the 9907-028) as well as complete 2301A system assemblies. Contact us with your full BOM for a consolidated quote.
Q: Can you provide documentation or datasheets?
A: Yes. Official WOODWARD datasheets, wiring diagrams, and installation manuals are available upon request for qualified buyers.
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 1 unit. Volume pricing is available for orders of 3 units or more.
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Contact: [email protected] | +0086 19859288691
