Woodward
Woodward 1751-147 Four-Channel MPU Isolation Transformer Module
In stock, ready to ship
Manufacturer: Woodward
Product No.: Woodward 1751-147
Product Type: MPU Transformer Module
Product Origin: USA
Payment: T/T
Weight: 1100g
Shipping port: Xiamen
Warranty: 12 months
Yes, we provide a 30-day money-back guarantee for all purchases.
Yes, all items come with a 12-month warranty from the date of shipment.
Product Overview
The Woodward 1751-147 is a four-channel transformer module for magnetic pickup (MPU) speed-signal interfacing. It provides electrical isolation in the signal path between the pickup circuit and receiving control or monitoring equipment. The part appears in Woodward’s MicroNet Simplex and MicroNet Plus component documentation and is also referenced for MPU inputs in the Turbine Protection Monitoring System. Its role is to interface the sensor signal, while speed measurement and protection functions are handled by the connected control equipment.
Technical Specifications
| Parameter | Specification / Detail |
|---|---|
| Manufacturer | Woodward |
| Part Number | 1751-147 |
| Product Type | MPU isolation transformer module |
| Number of Channels | 4 |
| Signal Source | Magnetic pickup speed signals |
| Signal Interface | Transformer coupling |
| Primary Function | Electrical isolation and signal interfacing |
| Transformer Ratio Reference | 3:1 in Woodward Manual 35027; 1:3 notation in the component listing of Manual 26166V2 |
| MicroNet Documentation | Listed in Manual 26166V2 for MicroNet Simplex and MicroNet Plus |
| Documented TPM Application | MPU signal interfacing associated with the NI 9221 input module |
Transformer ratio note: Both manuals identify part number 1751-147 but use reciprocal ratio notation. Confirm winding direction and terminal assignments from the applicable equipment drawing before replacement. The ratio descriptions alone do not establish the input and output terminal orientation.
Replacement and Installation Notes
Match the complete part number and any revision markings on the installed unit. Check the transformer connections against the machine wiring diagram, including the sensor-side connections, receiving input connections and channel assignments.
The receiving equipment’s signal requirements should be checked across the machine’s operating speed range. Installation, grounding and commissioning checks should follow the documentation for the specific control installation. Record the existing wiring arrangement before disconnecting the module so that each signal channel can be restored correctly.
Ordering Information
For a quotation, provide Woodward 1751-147, the required quantity and your preferred item condition. A clear photograph of the existing label and terminal arrangement helps identify the installed assembly and any revision markings.
Where replacement compatibility needs checking, include the control-system reference and relevant wiring drawing. Request confirmation of the supplied components, availability, dispatch time, net weight and packed dimensions with the quotation.
Frequently Asked Questions
Can 1751-6058 replace 1751-147?
The two parts should not be assumed interchangeable. Woodward Manual 35027 identifies 1751-6058 as a 1:1 transformer and 1751-147 as a 3:1 transformer. A replacement must meet the signal requirements and connection arrangement of the installed circuit.
Is 1751-147 a complete speed controller or overspeed protection unit?
It is a transformer interface module within the speed-sensing circuit. The connected monitoring or control system performs speed calculation, alarm evaluation and any configured shutdown functions.
Does the Woodward brand or MicroNet name alone confirm compatibility?
Compatibility should be established using the specified part number, equipment configuration and wiring documentation. A shared manufacturer or platform name does not establish that different transformer modules can be substituted.