{"id":48710,"date":"2024-04-15T22:45:12","date_gmt":"2024-04-15T22:45:12","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=48710"},"modified":"2024-04-15T22:45:12","modified_gmt":"2024-04-15T22:45:12","slug":"large-internal-faults-are-protected-by","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/large-internal-faults-are-protected-by\/","title":{"rendered":"Large internal faults are protected by"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;merz price percentage differential protection&#8221; option2=&#8221;mho and ohm relays&#8221; option3=&#8221;horn gaps and temperature relays&#8221; option4=&#8221;earth fault and positive sequence relays&#8221; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is A. Merz-Price percentage differential protection.<\/p>\n<p>Merz-Price percentage differential protection is a type of electrical protection that uses the principle of differential protection to detect and isolate faults. It is used to protect power transformers, generators, and other large electrical equipment from internal faults.<\/p>\n<p>The principle of differential protection is based on the fact that the current flowing into a piece of equipment is equal to the current flowing out of the equipment. If there is a fault inside the equipment, the current flowing into the equipment will be different from the current flowing out of the equipment. This difference in current can be detected by the Merz-Price percentage differential protection relay and used to isolate the fault.<\/p>\n<p>Merz-Price percentage differential protection is a very reliable and effective type of electrical protection. It is widely used in the power industry to protect large electrical equipment from internal faults.<\/p>\n<p>The other options are incorrect because they are not types of electrical protection that are used to protect large internal faults.<\/p>\n<ul>\n<li>Mho and ohm relays are types of overcurrent protection. They are used to protect electrical equipment from overloads and short circuits.<\/li>\n<li>Horn gaps and temperature relays are types of thermal protection. They are used to protect electrical equipment from overheating.<\/li>\n<li>Earth fault and positive sequence relays are types of fault detection relays. They are used to detect faults in electrical circuits.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;merz price percentage differential protection&#8221; option2=&#8221;mho and ohm relays&#8221; option3=&#8221;horn gaps and temperature relays&#8221; option4=&#8221;earth fault and positive sequence relays&#8221; correct=&#8221;option1&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[962],"tags":[],"class_list":["post-48710","post","type-post","status-publish","format-standard","hentry","category-switchgear-protections","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Large internal faults are protected by<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/large-internal-faults-are-protected-by\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Large internal faults are protected by\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;merz price percentage differential protection&#8221; option2=&#8221;mho and ohm relays&#8221; option3=&#8221;horn gaps and temperature relays&#8221; option4=&#8221;earth fault and positive sequence relays&#8221; correct=&#8221;option1&#8243;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/large-internal-faults-are-protected-by\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-15T22:45:12+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Large internal faults are protected by","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/large-internal-faults-are-protected-by\/","og_locale":"en_US","og_type":"article","og_title":"Large internal faults are protected by","og_description":"[amp_mcq option1=&#8221;merz price percentage differential protection&#8221; 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