MT2/H-20

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MT2/H-20 is a technology used in electrical engineering, motor drives and automation applications for the safe operation of electrical equipment. An H-20 application field is a limited area which may contain unsafe electrical equipment, and it is necessary to protect personnel who enter the area and ensure that the equipment is operated in a safe manner. This article explains the working principle of MT2/H-20 as well as its application fields.

MT2/H-20 is based on the principle that all electrical items present in an H-20 application field must be isolated from the general electrical network. In this way, all electrical items can be operated without danger to personnel and meeting safety regulations. It is accomplished by the use of a logic output system or isolator which divides the system into two separate sub-systems. The first sub-system is used to control the input of electrical power to the H-20 application field while the second sub-system monitors any changes in the parameters of the input circuit. If the input circuit parameters change, the isolator interrupts the power supply to the H-20 application field and prevents the equipment from being operated illegally.

In addition to this, MT2/H-20 also allows safe operation of electric equipment within hazardous areas by limiting the power and current input to the equipment. The power and current inputs are limited by using circuit breakers and contactors. Another feature of MT2/H-20 is that it provides independent levels of safety which are suitable for different types of applications. The independent levels are defined by the Safety Improvement Category (SIC).

MT2/H-20 can also be used to protect personnel who are working in the vicinity of electrical equipment such as in workshops, laboratories or factories. The isolator functions by automatically shutting down the operation of the equipment if it is operated outside the safe SIC range. This ensures that personnel working with the equipment are not exposed to any electrical or mechanical hazards. The isolator also records the operational history of the equipment, allowing maintenance personnel to review the data and perform preventive maintenance when required.

MT2/H-20 is especially useful for applications that require a higher level of safety than the conventional systems. This includes medical applications that require a high level of precision. It is also used for applications in the marine and military sectors that require equipments to be operated in a safe manner even during extreme weather conditions.

Overall, MT2/H-20 is a technology that is used in a wide range of applications to ensure the safety of personnel operating electrical equipment in hazardous areas. It is based on the principle that all electrical items present in an H-20 application field must be isolated from the general electrical network in order to prevent the equipment from being operated illegally. It also limits the power and current input to the equipment and ensures independent levels of safety, making it an ideal solution for environments that require precision.

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