{"id":3133,"date":"2011-06-22T08:00:37","date_gmt":"2011-06-22T12:00:37","guid":{"rendered":"http:\/\/www.engineeringradio.us\/blog\/?p=3928"},"modified":"2023-04-30T11:29:00","modified_gmt":"2023-04-30T15:29:00","slug":"the-onan-rs-15000-generator","status":"publish","type":"post","link":"https:\/\/www.engineeringradio.us\/blog\/2011\/06\/the-onan-rs-15000-generator\/","title":{"rendered":"The Onan RS-15000 Generator"},"content":{"rendered":"\n<p>It is a cute little thing. This one is being installed at a mountaintop transmitter site for a class A WKIP-FM in Ellenville, NY. \u00a0It is way up in the air (at least by local standards) at 2,450 feet AMSL. \u00a0As such, the TPO is only 300 watts into a one-bay antenna. \u00a0Therefore, even this little generator will be loafing along. \u00a0I added all the rack equipment up, both transmitters (main and backup), and the electric resistance heater and came up with a grand total of 6,300 watts. \u00a0The working load today was 3,200 watts, which I would assume is about average.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/Onan-rs-15000c.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"422\" src=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/Onan-rs-15000c.jpg\" alt=\"Onan RS-15000 at transmitter site with ice shield\" class=\"wp-image-3151\" srcset=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/Onan-rs-15000c.jpg 650w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/Onan-rs-15000c-150x97.jpg 150w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/Onan-rs-15000c-300x194.jpg 300w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/Onan-rs-15000c-400x259.jpg 400w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/a><figcaption class=\"wp-element-caption\">Onan RS-15000 at transmitter site with ice shield<\/figcaption><\/figure>\n\n\n\n<p>Denis, my sometimes helper, build an ice shield over the top of the unit with pressure-treated wood. \u00a0This unit was placed about 40 feet away from the 140-foot tower, next to the concrete block building. \u00a0Still, on a windy day, I could see some chunks of ice flying off the tower in this direction.<\/p>\n\n\n\n<p>It has a Lister\/Petter 1900 cc engine, 1800 RPM, 240-volt split phase generator. \u00a0At 25% load, it burns 1.2 gallons of propane per hour.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"389\" src=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000.jpg\" alt=\"Onan RS-15000 gaseous generator\" class=\"wp-image-3138\" srcset=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000.jpg 650w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000-150x89.jpg 150w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000-300x179.jpg 300w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000-400x239.jpg 400w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/a><figcaption class=\"wp-element-caption\">Onan RS-15000 gaseous generator<\/figcaption><\/figure>\n\n\n\n<p>This is annoying. The gas installer blocked access to one of the through holes in the bottom of the enclosure frame. Actually, more than annoying, downright annoying as it blocked the exact center of the hole. \u00a0I had to move the regulator up about two inches so I could run the 1-inch flex under the gas line. \u00a0This, in turn, led to some amount of swearing.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000a.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"389\" src=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000a.jpg\" alt=\"Gas supply to generator installed by selfish gas man\" class=\"wp-image-3140\" srcset=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000a.jpg 650w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000a-150x89.jpg 150w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000a-300x179.jpg 300w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000a-400x239.jpg 400w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/a><figcaption class=\"wp-element-caption\">Gas supply to a generator installed by selfish gas man or woman<\/figcaption><\/figure>\n\n\n\n<p>Another side of the engine:<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000b.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"389\" src=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000b.jpg\" alt=\"Lister petter 4 cylinder 1900 cc engine\" class=\"wp-image-3141\" srcset=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000b.jpg 650w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000b-150x89.jpg 150w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000b-300x179.jpg 300w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000b-400x239.jpg 400w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/a><figcaption class=\"wp-element-caption\">Lister Petter 4 cylinder 1900 cc engine<\/figcaption><\/figure>\n\n\n\n<p>Pushrods going to rocker&#8217;s arms over the cylinders. \u00a0Low-tech, under-head cam engine. That&#8217;s okay, so long as it works when it is supposed to.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000d.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"389\" src=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000d.jpg\" alt=\"Onan RS-15000 generator wired to transmitter building\" class=\"wp-image-3152\" srcset=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000d.jpg 650w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000d-150x89.jpg 150w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000d-300x179.jpg 300w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/onan-rs-15000d-400x239.jpg 400w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/a><figcaption class=\"wp-element-caption\">Onan RS-15000 generator wired to the transmitter building<\/figcaption><\/figure>\n\n\n\n<p>PVC conduit running into the transfer switch. \u00a0The final connection is made with a liquid-tight flexible metal conduit (FMC). \u00a0The control wiring is run in a separate 1\/2-inch conduit, as required by NEC.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>It is a cute little thing. This one is being installed at a mountaintop transmitter site for a class A WKIP-FM in Ellenville, NY. \u00a0It is way up in the air (at least by local standards) at 2,450 feet AMSL. \u00a0As such, the TPO is only 300 watts into a one-bay antenna. \u00a0Therefore, even this &hellip; <a href=\"https:\/\/www.engineeringradio.us\/blog\/2011\/06\/the-onan-rs-15000-generator\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">The Onan RS-15000 Generator<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[64],"class_list":["post-3133","post","type-post","status-publish","format-standard","hentry","category-tech-stuff","tag-generator"],"_links":{"self":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts\/3133","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/comments?post=3133"}],"version-history":[{"count":9,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts\/3133\/revisions"}],"predecessor-version":[{"id":11782,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts\/3133\/revisions\/11782"}],"wp:attachment":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/media?parent=3133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/categories?post=3133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/tags?post=3133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}