{"product_id":"iri1-i5e05d-woodward-protection-relays","title":"IRI1-I5E05D Woodward Protection Relays","description":"\u003cp\u003eThe \u003cstrong\u003eWoodward IRI1-I5E05D\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eIRI1-I5E05D\u003c\/strong\u003e Earth Fault Relay, operates as a dedicated hardware component for supplemental power transformer protection within electrical protective relaying networks. Operating with a 5 A rated earth current and an auxiliary power supply of 110 V (16 to 60 V AC \/ 16 to 80 V DC), this unit evaluates current transformer inputs to isolate internal phase, ground, and external fault conditions across high-voltage (HV), medium-voltage (MV), and low-voltage (LV) equipment loops.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eIRI1-I5E05D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C (-4 to +140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eAuxiliary Supply: 110 V (16 to 60 V AC \/ 16 to 80 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Earth Current\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Interfaces\u003c\/td\u003e\n\u003ctd\u003eCurrent Transformer (CT) Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHuman-Machine Interface\u003c\/td\u003e\n\u003ctd\u003eIntegrated Local HMI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtective Function\u003c\/td\u003e\n\u003ctd\u003eZero-Current Differential and Earth Fault Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Form Factors\u003c\/td\u003e\n\u003ctd\u003e19-inch Rack, Door Mounting, Panel Mounting (Withdrawable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHarmonic Distortion Suppression and Vector Feedback Response\u003c\/h3\u003e\n\u003cp\u003eThe Woodward IRI1-I5E05D incorporates high-speed current vector feedback response to maintain precise trip threshold accuracy during system transients. Internal signal conditioning suppresses harmonic distortion to prevent false tripping caused by magnetizing inrush currents during transformer energization. By calculating star-point current vector summation, the internal processing unit executes high-resistance ground fault detection while maintaining transient stability across upstream and downstream breaker control circuits.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What mounting options are supported for the withdrawable chassis of the IRI1-I5E05D relay?\u003c\/p\u003e\n\u003cp\u003eA: The relay module supports 19-inch rack mounting, door mounting with sealable protective covers, and flush panel mounting, all featuring withdrawable chassis access.\u003c\/p\u003e\n\u003cp\u003eQ: How does the star-point current connection enhance earth fault protection performance?\u003c\/p\u003e\n\u003cp\u003eA: Connecting the star-point current enables zero-current differential calculations, allowing the relay to detect low-level ground leakage currents while isolating external through-fault conditions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure auxiliary supply voltages match the hardware terminal specifications of 16 to 60 V AC or 16 to 80 V DC prior to energizing the unit.\u003c\/li\u003e\n\u003cli\u003eShort-circuit all secondary current transformer (CT) loops before inserting or withdrawing the IRI1-I5E05D relay module from its housing sleeve to prevent dangerous overvoltages.\u003c\/li\u003e\n\u003cli\u003eGround the relay frame terminal directly to the panel earth bus using a short, low-impedance copper conductor.\u003c\/li\u003e\n\u003cli\u003eRoute current transformer signal cables in twisted shielded pairs, terminating the shield at a single ground point to avoid circulating ground loops.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":53407728566581,"sku":"IRI1-I5E05D","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/IRI1-I5E05D.png?v=1787735381","url":"https:\/\/www.5gplc.com\/products\/iri1-i5e05d-woodward-protection-relays","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}