WHICH PACKAGE SUBSTATION TRANSFORMER YOU SHOULD CHOOSE AND WHY?

In recent times it has been observed that industries search for more efficient, simpler, and easy to install features. Industrial transformers manufacturers usually assemble and build package substations tailored according to individual customer’s requirements. It is done by using the products from the complete range, providing a suitable, single-source package station. And all these are fulfilled with low cost and minimum time.

Flexibility is provided through the customized configurations or packaged substations from the variety of choice of products available, including:

• Transformers from 200kVA to 3MVA
• MCCB and LV ACB feeder pillars and cabinet
• Both non-extensible and non-extensible Ringmaster range MV switchgear
• LV SAIF and shielded fuse gear
• Automation & monitoring systems

The package substation unit is normally in a close-packed cabinet. Package substation is applied to both outdoor and indoor distribution systems. Industrial transformers manufacturers build various types of the packaged substations. The most popular of all and used widely is the 11k1V unit substation. The reason behind using this type is the voltage grade advantage.

One best part of a package unit substation is it can be designed and customized according to the need. This customization and testing are done by the package substations transformer manufacturers at their factory. The combination of package substations is the HV switchgear panel and LV switchgear. The inside of the transformer has an option for dry type and oil type. For this reason, it is also; called by the name of compact transformer substation.

Analyses of the different types of substations are as follows:

Metalclad Distribution Substation (MDS)

The Metalclad Distribution Substation (MDS) is composed of a distribution transformer, Ringmaster MV switchgear, and LV equipment;

The components are fitted into a stainless steel enclosure. These substations are so built by package substations transformer manufacturers that they are ready to go and when delivered they are complete. Being so compact they can be slotted into a very small space, unlike regular substations. Only needs to be placed on a pre-constructed foundation and then can be connected to the network and commissioned with ease.

Consequently, they render the traditional modes of purchase of transformers, enclosures, switchgear, ancillary electrical items, etc from different sources. Saving time from dealing with vendors, construction works involving civil engineers, and others. The small structure makes Metalclad Distribution Substation very easy to install.

Features and benefits

• They can be assembled in the factory
• Delivered for direct deployment.
• Very little requirement of any civil work
• Stainless steel enclosure painted with corrosion-resistant
• Integral bunding system
• Easy Cabling, installing, and maintenance
• Very small and compact
• Insulating fluid management

In-line packaged substation

A notable property of the in-line packaged substations is that they have the MV and LV terminations positioned on opposite ends of the transformer tank. Package substations transformer manufacturers generally provide a single lift package substation by having the MV and LV switchgear directly mounted onto the transformer.

The in-line packaged substations can be ordered with a variety of enclosures. Enclosures include vandal-resistant protection, weatherproof, Glass Reinforced Plastic (GRP) protection, stainless steel protection, powder-coated stainless steel protection, painted stainless steel protection, and powder-coated galvanized steel protection and painted galvanized steel protection.

Features and benefits

• They can be assembled in the factory
• Delivered for direct deployment.
• Can have optional enclosures
• Has a single point of contact
• There is a wide choice of MV/LV switchgear
• Can directly be coupled with switchgear

Unit substation      

Package substations transformer manufacturers build these substations exclusively for electrical utility enterprises, but then also they can be used by others. They come in a range that has both the MV and LV terminations/switchgear mounted on the transformer tank. Generally, the MV and/or LV switchgear are directly mounted on the transformer flanges giving the system a compact arrangement.

The complete substation is construed as a single unit and can be delivered directly to the clients’ premises. This reduces the efforts involved in site installation and removes any requirement for on-site assembly.

Features and benefits

• They are very small and compact
• They can be assembled in the factory
• Delivered for direct deployment.
• Direct mounted MV/LV switchgear
• Single lift arrangement
• Very little requirement of any civil work
• There is a wide choice of MV/LV switchgear

Pad-mount substation

These substations are suitable for distribution implementation in rural areas. They are three-phase package substation transformers, immersed in fluid, and pad-mounted.

Built by the oil-immersed power transformers manufacturers they are very compact they act as the alternatives to traditional packaged substations being very economic. Pad-mounted transformers are very good-looking. Unlike the pole-mounted units, these packaged substations are environmentally sensitive and are devoid of overhead lines not preferred in many areas. The Pad-mounted transformers being compact can easily be blended into the natural surroundings of rural areas.

Features and benefits

• Immersed in fluid
• They are very small and compact
• They can be assembled in the factory
• Delivered for direct deployment.
• Single lift arrangement
• Enclosed in stainless steel enclosures
• Have the option for LV distribution

One-stop engineered package substation

These are tailored Substations built by the package substations transformer manufacturers as per the customer requirements. They combine MV switchgear, distribution transformers, and LV equipment.

Features and benefits

• Have a very simple specification
• They can be assembled in the factory
• Delivered for direct deployment.
• There is a wide choice of MV/LV switchgear
• Flexible
• Tailored to customer needs
• Single lift arrangements
• Directly mounted switchgear
• Arrangements of terminations may be chosen from a set option
• Operator protected
• Very Economic

To Conclude:

To summarize, a packaged substation occupies less space and involves minimal wiring. These setups are suitable for buildings, offices, shopping malls, construction sites, etc. Generally, the package substation unit contains medium and low-voltage switchgear associated protection. Having the right finishing plays a very important role in creating an appealing unit that will be able to merge into the surrounding.

Using package substations gives flexibility and cost-effectiveness by enabling optimization of space.

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