An uninterrupted and sustainable energy system is built on the proper design and projection of medium voltage systems. In this article, we mention of the advantages of metal clad switchgears, which have a very significant role in medium voltage systems. The medium voltage switchgear contains of four or five seperate compartment (cable compartment, busbar compartment, LV panel compartmens and optional VT compartment) are separated from one another by a metal sheet that is effectively grounded.

Metal clad switchgears bring outstanding advantages to facility with their high safety, customizable structure, easy sustainment and serviceability. Metal clad switchgears are primarily preferred in energy distribution companies, power generation plants, diesel power plants, renewable energy plants, industrial zones, cement, automotive industry, iron and steel, mining, textile, petrochemistry, and many other fields.

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What is a Metal Clad Switchgear?

Metal clad systems have advanced safety features compared to traditional metal enclosed type swicthgears. In these switchgears, all compartments are separated from each other with grounded metal and these systems offer absolute safety because they are fully isolated systems. Grounded seperators, mechanical interlocks, circuit breakers and fully isolated bus systems that separate operators from medium voltage sections are vital for safety.

Another safety feature is remote circuit breaker capability. In metal clad switchgears, circuit breaker operations can be performed by an operator from a distance via a push button, thus preventing direct contact of personnel with the equipment. In addition, an optional arc extinguishing channel is available.

Customization Possibility

Metal clad switchgears operate basic load protection and can perform protection according to the instructions of the installed relay. The relay usually includes the minimum ANSI functions, which typically include overcurrent, undervoltage, overvoltage and circuit breaker trip for basic applications.  Challenging or complex applications may include, for example, current, voltage and frequency protection features such as selective zone interlocking, ground fault and phase overcurrent.

Additional customization applications can even include phase sequence and phase balance protection. This can provide superior protection, especially for plants that cannot tolerate power interruptions. For instance, we can all imagine how much raw material would be wasted in an iron and steel plant if a one-hour power outage were to occur.

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Ease of Maintenance and Service

Metal Clad Switchgears are a great option for applications where maximum service continuity is required. Manufactured to withstand high current and short circuit currents, these switchgears also offer easy maintenance. Thanks to the effortless replacement of the circuit breaker, during any breakdown or maintenance, the energy interruption is compensated as soon as possible.

Why Aktif Metal Clad Switchgears?

• They can be used safely in facilities requiring high level of safety and energy continuity.
• Minimizes the installation and maintenance time of your facility by providing effortless and quick operation thanks to the withdrawable breaker and withdrawable voltage transformer.
• Aktif SNC Metal Clad Switchgears save space with minimized dimensions.
• The continuity of the facility is ensured safely with the type tests taken from internationally accredited laboratories, manufacturing in accordance with IEC 62271-200 and TSE EN 61271-200 standards.
• Seismic tested reliable design in compliance with IEC 62271-210, EN60068, IEEE 693, GR-63 Core Zone 4.