The liquid type HV HRC fuse is mostly used in the high voltage circuit. The effects of the short circuit need to be considered in circuit breaker, which allow the use of an inexpensive circuit breaker. These are accessible to different levels of voltages and used to protect the transformer. breaking curren lmin: 8a Rated freq: 50ha, Your email address will not be published. A fuse is an electrical device that includes a conductor. Buy HRC Fuses. HRC Fuses Type 3NA3Introduction. The chemical reaction will occur between filling power and silver vapor to result in high resistance material to help in reducing the arc within the fuse. Liquid Type HV HRC Fuse. So this is the reason to provide the limitations within the element of HRC Fuse. HRC Fuse consists of highly heat resistant material (such as ceramic) body having metal-end caps, which is welded by silver current carrying element. The major objection on HRC fuse is low and uncertain breaking capacity of semi-enclosed fuse. HRCI-CA Industrial Ceramic Bolt-On Fuse - CIF21. Blade contact fuse. Generally, copper or silver is used as the fuse element because of its low specific resistance. The possibility of interlocking is larger. The heat being produced vaporizes the silver melted element. The fuse body internal space is completely packed with a filling powder. So this is the weakest part of an electrical circuit. Din type fuses are available in wide range of rated currents. After every action, they have to be changed. NH Type Fuse. These fuses give protection for starters of the motor as well as other devices which are against overload and short circuit. Motor Protection – Types of Faults and Protection Devices. Used for protection of Transformers, Motors and automobile, etc. Please consider supporting us by disabling your ad blocker. NH fuse provides overload and short circuit protection for low and medium voltage. The body of the Blade Type Fuse is generally made up of plastic and the two conducting Blade Type Plates are fixed to the fuse element. They are connected by series of silver fuse elements. Type K - CIH07B. The advantages of these fuses include the following. This provides protection in situations like... #2.DIN Type Fuse: Mostly, they used in automobiles for wiring and short circuit protection. NH type fuse, DIN type fuse and . There are different types of fuses available in the market. This ceramic body includes metal-end caps that are welded through an element that carries silver-current. This type of fuses (also known as spade or plug-in fuses) comes in plastic body and two metal caps to fit in the socket. HRCI-Misc. The generated heat vaporizes the melted element. At both sides of the fuse, the ceramic enclosure is made with a metal cap which is welded with fusible silver wire. They are also used for short circuit and backup protection of motors. If the flow of current through the fuse increases, then the generated heat also increases. HRC Fuses are also used for protection on low voltage distribution systems against overload and short circuit conditions. Follow, © Copyright 2020, All Rights Reserved 2012-2020 by. it prevents single-phase supply as well. HRC fuse is consistent & it has the feature like if it has a high fault current then break time is low. L&T, India's largest manufacturer of low tension switchgear, offers the new generation of low watt loss HRC fuse- links designed as per the new IS 13703 / IEC 60269 standards. During single-phase fault on a three-phase system, the plunger trips the circuit breaker, which opens all the three phases, i.e. HRCI-J Fast-Acting, Ceramic - CJ. During this period, if fault is removed, then it does not blow off otherwise it will melt and remove the circuit from electrical supply hence, the circuit remains safe. Here, RF is the resistance of the fuse. It is used in different temperatures with... #3.Blade Type Fuse: When the fuse is in an overload condition, then the element of the fuse will not blow-off however if this condition exists for an extended period, then the material like Eutectic will dissolve & break the element of the fuse. They have excellent clearing capability of ideal low over current with short-circuit performance. What are Ferromagnetic Materials – Types & Their Applications, These are cheaper as compared with other types, The inverse time characteristic is suitable for overload protection. Low voltage H.R.C fuses are also available in a capacity of 16000A to 30,000A at 400V (Also available in range of 80kA to 120kA) .
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