{"product_id":"woodward-1751-147-four-channel-mpu-isolation-transformer-module","title":"Woodward 1751-147 Four-Channel MPU Isolation Transformer Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification \/ Detail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1751-147\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMPU isolation transformer module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Source\u003c\/td\u003e\n\u003ctd\u003eMagnetic pickup speed signals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Interface\u003c\/td\u003e\n\u003ctd\u003eTransformer coupling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eElectrical isolation and signal interfacing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransformer Ratio Reference\u003c\/td\u003e\n\u003ctd\u003e3:1 in Woodward Manual 35027; 1:3 notation in the component listing of Manual 26166V2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicroNet Documentation\u003c\/td\u003e\n\u003ctd\u003eListed in Manual 26166V2 for MicroNet Simplex and MicroNet Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDocumented TPM Application\u003c\/td\u003e\n\u003ctd\u003eMPU signal interfacing associated with the NI 9221 input module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cstrong\u003eTransformer ratio note:\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003ch3\u003eReplacement and Installation Notes\u003c\/h3\u003e\n\u003cp\u003eMatch 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cp\u003eFor a quotation, provide \u003cstrong\u003eWoodward 1751-147\u003c\/strong\u003e, 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.\u003c\/p\u003e\n\u003cp\u003eWhere 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.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan 1751-6058 replace 1751-147?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 1751-147 a complete speed controller or overspeed protection unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the Woodward brand or MicroNet name alone confirm compatibility?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCompatibility 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.\u003c\/p\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":72023009067146,"sku":"Woodward 1751-147","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0698\/2818\/2154\/files\/1751-1471_r90.jpg?v=1794293941","url":"https:\/\/www.cambiaplc.com\/products\/woodward-1751-147-four-channel-mpu-isolation-transformer-module","provider":"CambiaVect Group Limited","version":"1.0","type":"link"}