Unitised Sub-Station

The Unitised Substation is also known as Compact Substation(CSS) & Packaged Sub Station(PSS). The Unitised Substation 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.

The Unitised sub-station is designed keeping in mind the personal safety & aesthetics, considering HT equipment is located in hish density utban 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.

We manufacture various modules of indoor/ Outdoor type Unitized Sub-Stations up to 36kv class & up to 2500 KVA capacity of transformers with HT/LT switchgears. Our Unitized substation consist of inbuilt safety interlock(both electrical & mechanical interlock) to avoid accident in case of opening of doors when the substation is in energized position.

Advantages

• Fully compartmentalized design.
• Easy to install, operate & require very less maintenance.
• Cost effective & space saving.
• Reduced electrical losses as USS 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 USS delivered as a single unit.
• Tailored configuration to meet custome requirement.
• Due to the enclosed construction, it avoids Bird hit, human/ animal contact which may lead to fatal acidental and disruption of power supply.
• Aesthetically enhanced look & designed to suit the site topography, which gives pleasing appearance.
• No sepearte room is required.
• Can be installed indor and outdoor.

APPLICATION

• USS are ideally suited for residential and commercial complexes as it can be placed on ground floor or basement or rooftop of the high rise buildings.
• Mainly used by Power utilities, multiplex, hotels, hospitals, shopping malls, software parks, airports & residential complexes etc.