{"id":121936,"date":"2023-07-04T10:43:57","date_gmt":"2023-07-04T05:13:57","guid":{"rendered":"https:\/\/www.electronicsforu.com\/?p=121936"},"modified":"2024-08-06T15:00:29","modified_gmt":"2024-08-06T09:30:29","slug":"diy-dry-run-protection","status":"publish","type":"post","link":"https:\/\/www.electronicsforu.com\/electronics-projects\/diy-dry-run-protection","title":{"rendered":"Stop Water Cooler Damage with DIY Dry Running Protection System"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"178\" height=\"169\" src=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2022\/06\/efy-tested.jpg\" alt=\"efy tested\" class=\"wp-image-97958\"\/><\/figure><\/div>\n\n\n<p>With this dry running protection system, you can <strong>prevent your water cooler\u2019s motor from dry running<\/strong> and activate it for about one-third of the time only. This will reduce the wear and tear of the motor and save electricity too. Coolers are used in many homes, offices, schools, and industries, especially in summer. <\/p>\n\n\n\n<p>So this device will come in handy to stop the cooler pump automatically when the cooler\u2019s tank has no water.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"255\" src=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Dry-Running-Protection-for-Pump.jpg\" alt=\"DIY Dry Running Protection System for Pump\" class=\"wp-image-122421\" srcset=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Dry-Running-Protection-for-Pump.jpg 600w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Dry-Running-Protection-for-Pump-500x213.jpg 500w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Dry-Running-Protection-for-Pump-50x21.jpg 50w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Dry-Running-Protection-for-Pump-100x43.jpg 100w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\">Fig. 1: DIY Dry Run Protection System for Pump<\/figcaption><\/figure><\/div>\n\n\n<p>DIY Dry Running Protection System for Pump is shown in Fig. 1 and its circuit diagram is shown in Fig. 2. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Live DIY Video Tutorial In English:<\/h3>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"gkch8I9pHmWGN4ZEnysBBT1sex9XdG0tDNqyLHMiFUWtOZcATeib5dfJpYwJo7F82f0KhR6onXQuA23vukwS\"><iframe loading=\"lazy\" title=\"Live Session (English): Introduction To Cooler Pump Safety - Electronics For You\" width=\"696\" height=\"392\" src=\"https:\/\/www.youtube.com\/embed\/POx0qEruGCk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/span>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Live DIY Video Tutorial In Tamil:<\/h3>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"8kgJWzSlLvmp9andRireX\"><iframe loading=\"lazy\" title=\"Live Session (Tamil): Introduction To Cooler Pump Safety - Electronics For You\" width=\"696\" height=\"392\" src=\"https:\/\/www.youtube.com\/embed\/g2e2MCpzCMw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/span>\n<\/div><\/figure>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-table\"><table><tbody><tr><td colspan=\"2\"><strong>Components Required for Building Dry Running Protection System<\/strong><\/td><\/tr><tr><td><strong>Semiconductors:<\/strong><\/td><td><\/td><\/tr><tr><td>IC1<\/td><td>-LM7805, 5V voltage regulator<\/td><\/tr><tr><td>IC2<\/td><td>-NE555 timer<\/td><\/tr><tr><td>IC3<\/td><td>-4017 decade counter<\/td><\/tr><tr><td>BR1<\/td><td>-1A bridge rectifier<\/td><\/tr><tr><td>LED1, LED2<\/td><td>-5mm LED<\/td><\/tr><tr><td>D1<\/td><td>&#8211;<a href=\"https:\/\/www.tme.eu\/Document\/8a0c0b7e643996c9a2ecfdce46dc9310\/1n4001_7.pdf\" target=\"_blank\" rel=\"noopener\">1N4007<\/a> rectifier diode<\/td><\/tr><tr><td>D2-D5<\/td><td>-1N4148 signal diode<\/td><\/tr><tr><td>T1<\/td><td>-2N2219 NPN transistor<\/td><\/tr><tr><td colspan=\"2\">Resistors (all 1\/4-watt, \u00b15% carbon):<\/td><\/tr><tr><td>R1, R6<\/td><td>-1-kilo-ohm<\/td><\/tr><tr><td>R2<\/td><td>-470-kilo-ohm<\/td><\/tr><tr><td>R3<\/td><td>-47-kilo-ohm<\/td><\/tr><tr><td>R4<\/td><td>-10-kilo-ohm<\/td><\/tr><tr><td>R5<\/td><td>-680-ohm<\/td><\/tr><tr><td colspan=\"2\">Capacitors:<\/td><\/tr><tr><td>C1<\/td><td>-1000\u03bcF, 35V electrolytic<\/td><\/tr><tr><td>C2<\/td><td>-100\u03bcF, 16V electrolytic<\/td><\/tr><tr><td>C3<\/td><td>-10nF ceramic disk<\/td><\/tr><tr><td colspan=\"2\">Miscellaneous:<\/td><\/tr><tr><td>CON1-CON4<\/td><td>-2-pin connector<\/td><\/tr><tr><td>S1<\/td><td>-Water sensor probes made of steel (2)<\/td><\/tr><tr><td>RL1<\/td><td>-5V, 1C\/O relay<\/td><\/tr><tr><td>X1<\/td><td>-230V AC primary to 9V, 500mA secondary transformer<\/td><\/tr><tr><td><\/td><td>-Cooler pump<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>DIY<\/strong> <strong>Dry Running Protection System &#8211; Circuit Diagram<\/strong><\/h2>\n\n\n\n<p>The circuit comprises step-down transformer X1, <a href=\"https:\/\/www.electronicsforu.com\/technology-trends\/learn-electronics\/bridge-rectifier-circuit-construction-working-types\">bridge rectifier<\/a> BR1, 5V voltage regulator <a href=\"https:\/\/www.electronicsforu.com\/technology-trends\/learn-electronics\/7805-ic-voltage-regulator\">LM7805<\/a> (IC1), decade counter 4017 (IC2), rectifier diode 1N4007 (D1), signal diode 1N4148 (D2-D5), NPN transistor 2N2219 (T1), 5V single changeover relay, and a few other components.<\/p>\n\n\n\n<div class=\"mepr_error\"><div class=\"locked-content\">\n<b>EFY++ CONTENT: ACCESS TO THIS CONTENT IS FREE! BUT YOU NEED TO BE A REGISTERED USER.<\/b><\/p>\n<p>Oops! This is an EFY++ article, which means it's our Premium Content. You need to be a Registered User of our website to read its complete content.<\/p>\n<p><b>Good News: <\/b>You can register to our website for FREE! <a href=\"https:\/\/www.electronicsforu.com\/plans\/subscription-plans\" target=\"_blank\" rel=\"noopener\">CLICK HERE<\/a> to register now.<\/p>\n<p><b>Already a registered member? <\/b>If YES, then simply login to you account below. 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This will reduce the wear and tear of the motor and save electricity too. Coolers are used in many homes, offices, schools, and industries, especially in summer. So this [&hellip;]<\/p>\n","protected":false},"author":106036,"featured_media":121947,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,23,6072,2119,3713],"tags":[130,1985,111,110,11992],"class_list":{"0":"post-121936","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-electronics-projects","8":"category-hardware-diy","9":"category-beginners-projects","10":"category-diy-projects-video-tutorials","11":"category-premium","12":"tag-digital-electronics-projects","13":"tag-diy-projects","14":"tag-electrical-projects","15":"tag-electronics-projects","16":"tag-jul-2023"},"_links":{"self":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts\/121936","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/users\/106036"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/comments?post=121936"}],"version-history":[{"count":1,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts\/121936\/revisions"}],"predecessor-version":[{"id":144896,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts\/121936\/revisions\/144896"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/media\/121947"}],"wp:attachment":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/media?parent=121936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/categories?post=121936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/tags?post=121936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}