Compact Sub Station

We manufacture various modules of Indoor/Outdoor type Compact Sub-Stations upto 2500 KVA capacity, 33KV class of transformers with HT/LT switchgears.

The Compact Sub-Station (CSS) is also known as Unitised Sub-Station (USS) or Packaged Sub-Station (PSS). The Compact Sub-Staton is a compact arrangement, which replaces conventional sub-station arrangement consisting of Load Break Switch / Vacuum Circuit Breaker, Transformer, Distribution Panel, Lightening arresters mounted on a pole structure or on a platform.

CSS is designed, keeping in mind the personal safety & aesthetics, considering HT equipment is located in high density urban places. It is a pre fabricated secondary sub-station consisting of three compartments (i.e.) H.V.Compartment which houses Vacuum Circuit Breaker (VCB) or Load Break Switch (LBS), the transformer compartment which houses dry type /oil cooled transformers & the LV compartment which houses ACB, MCCB, SFU etc. as per client's requirement. All components are housed in an enclosure which protects the equipment against environmental hazards & unauthorized access . The electrical equipments are cooled by natural ventilation.

• Fully compartmentalized design
• Easy to install, operate & require very Less Maintenance
• Cost Effective & Space Saving
• Reduced Electrical Losses as CSS can be installed near the load centre
• A high degree of Safety & operational reliability is achieved by HT & LT switchgear with protective relays
• Reduction in logistic cost as the CSS is delivered as a single unit
• Tailored Configuration to meet customer requirement
• Due to the enclosed construction, it avoids Bird hit, human / animal contact which may lead to fatal accident and disruption of power supply
• Aesthetically enhanced look & designed to suit the site topography, which gives pleasing appearance
• No separate room is required
• Can be installed Indoor & Outdoor

• Load Break Switch with fusetrip & earth switch mechanism, shunt trip coil, HT HRC fuses

• Vacuum Circuit Breaker with metering & protection using current/potential transformers & relays

• Ring Main Units consists of Load Break Switches/Vacuum Circuit Breakers combination