The switchgear is an important electrical component that has various features and advantages. The switchgears provide protection to the electrical appliances through the interruption of overloaded circuits. There are two different types of switchgears: metal enclosed switch gear and metal clad switch gear. The metal clad switchgear can be considered as the subset of the metal enclosed switchgear.
The metal clad switchgear is enclosed with metal shell on all of the sides except viewport openings and small ventilation. The complete shell is grounded like the metal enclosed switchgear however this is where their similarities end. The metal clad switchgear differs from the metal enclosed version in the way where the metal clad device has all internal components individually clad in the metal or they are compartmentalized.
The different compartments can be eliminated individually without any significant impact on the system, which is a big advantage. All of these upgrades and added features add to the higher price of the metal clad switchgear in comparison to the metal enclosed switchgear. You can visit here for more details on the different aspects of metal clad switchgear, its features and their specifications provided by Rockwill.
Advantages of metal clad switchgear
There are various recloser manufacturers and the usage of metal clad switchgear provides a number of advantages to the clients and customers. Some of the benefit of the metal clad switchgears from https://www.cnrockwill.com/ includes customization, ease of maintenance and enhanced safety. Let us have a look at some of these benefits in more detail.
Customization: One of the big advantages of the metal clad switchgear is the capability to be completely customizable, depending on the specifications provided by the customers. You get the basic load protection with the metal clad switchgear and its operation depends on instructions that are relayed at the time of the installation. This is why the relay which is selected defines the customization level as per the specification. For the basic applications, the relay contains minimum ANSI functions and it includes the overcurrent, over voltage, under voltage and tripping circuit breaker.
Ease of maintenance: The maintenance requirements vary based on the requirements of the customer applications. Some applications need reduced equipment switching. Its primary objective is to provide disconnect which continually functions in “on” position except an annual shutdown. The other applications need equipment switching from “on to off” or “open to close” more frequently. For the frequently switching applications, the customers prefer the equipment which can handle constant usage of load operations that is fed. The capability of withdrawing circuit breaker from the compartment enables mechanical and electrical parts to be maintained and monitored more frequently.
Enhanced safety: The metal switchgear provides enhanced features of safety which are essential in the conventional metal-enclosed switchgear, For instance, metal clad is completely compartmentalized which means that compartment of low voltage is accessible while not allowing access for other live parts in switchgear. This unit is also completely grounded with mechanical interlocks, grounded barriers, completely insulated bus and circuit breaker shutters that keep the operators insulated from medium voltage sections.
The Rockwill is one of the most trusted and reliable RMU manufacturer in the industry with years of experience and impeccable expertise in the field. Being one of the primary ring main unit manufacturer in the industry, some of the metal clad switchgear products featured on their website are as follows. Outdoor gas insulated ring main unit, outdoor ring main unit, ring main unit with enclosure, RMR – 12/24N type SF6 ring main unit, RMR-40.5 series gas insulated ring main unit and 12/24kv full gas insulated RMU amongst others.