Cosmostat. is a well-known manufacturer & supplier of Compact Substation manufacturer. We at Cosmostat Power are a gathering of fashioners with abilities in the electrical field. 

We have undergone large RESEARCH & DEVELOPMENT for achieving the goal of making BIS approved transformer up to and including 2500 KVA distribution transformer of all levels of efficiency wiz:- LEVEL-1, LEVEL-2, and LEVEL-3.

Compact Substation Transformer(CSS) consists of all the necessary equipment such as VCB, DRY TYPE TRANSFORMER, LBS, RMU, PROTECTIVE RELAYS, etc. Thus CSS is all in one compact substation which has all the necessary devices. This CSS is easily transferable and can be taken into work within a limited period of time.

All you have to do is to give H.V side and L.V side connections and your CSS is ready for use which is safe and reliable. This transformer can be installed in various industries such as Casting industries, Textile industries, Residential areas, Solar farms, Wind farms, etc.

We are an excellent Compact Substation manufacturer. The standard range is 250 KVA to 5000 KVA 11, 22 & 33 KV voltages class.


  • Designed for indoor installation close to their point of use at the center of the major load consumers.
  • These transformers are combined with their primary and secondary switchgear and distribution boards into compact substations that are installed directly at their point of use.
  • This reduces construction requirements, cable costs, transmission losses and installation costs.
  • Transformer is fitted with three temperature sensors installed in the LV winding, and a solid-state tripping device with relay output.
  • It can be mounted on a rooftop (for dry type transformer) where you want the power supply.


  • Designed to give maintenance-free long-lasting operation for a minimum of 30 years.
  • Dry-type epoxy cast or vacuum impregnated or transformer.
  • VCB or SF6 C.B whichever is suitable for protection from the H.V side with all necessary protecting relays, CT’S, PT’S, etc
  • LBS switch for making or breaking contact from the L.V side.
  • M.S cabinet for protection of all the internal devices from environmental strokes.
  • Epoxy or polyurethane dual coat with a zinc-rich primer on the cabinet for protection against rust for minimum 5 years.

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