Compact Substation Manufacturer in India
SPL Power (Shivamshree Power Pvt. Ltd.) is a compact substation manufacturer in India building CSS units, package substations, and integrated HT-LT switching systems at our Chakan MIDC facility in Pune. Our compact substations combine a distribution transformer, HT switchgear or Ring Main Unit (RMU), LT panel, and metering into a single factory- assembled enclosure. They leave our factory tested, type-tested to IS 2026 and IS 1180, and ready for site installation.
We supply to industrial plants, solar farms, residential townships, commercial buildings, hospitals, and infrastructure projects across Maharashtra and India. As a compact substation manufacturer in Pune, our location in Chakan MIDC means faster delivery across Maharashtra and straightforward logistics to sites further afield. Every system is built to your project’s load requirement — we do not supply a standard catalogue unit and call it custom.
A compact substation — also called a CSS (Compact Secondary Substation) or package substation — is a factory-built unit that houses all the components needed to receive HT power from the grid, step it down to LT, and distribute it to your plant or building. Everything is integrated in one metal enclosure: transformer, HT switchgear, LT incomer panel, metering, and protection relays.
The advantage over a site-built substation is significant. A traditional substation needs a civil room, separate equipment procurement, site wiring, and testing at multiple stages. A compact substation arrives factory-tested as one unit. Installation at site is connection work, not construction. For projects where speed of energisation matters — solar plants, industrial greenfield sites, residential phases — compact substations consistently reduce project time.
Our CSS units are built to IS 2026 Part 1 (transformer), IS 3427 (HT switchgear), and IS 8623 (LT switchboard). The enclosures are IP54-rated for outdoor installation as standard. IP65 available for sites with heavy rain exposure or high dust conditions.
This integrated design reduces installation time, minimizes site work, and improves operational safety.
Solar Compact Substation (Inverter Duty): For utility-scale solar projects, we integrate our inverter-duty solar transformer with a DC switch disconnector, AC LT panel, and HT RMU in one CSS enclosure. Sized from 500 KVA to 5000 KVA for ground-mounted solar farms Compact Substation Manufacturer in Pune.
For our standalone distribution transformer range, see our Distribution Transformer
- Transformer Integrated CSS (Oil Type)
- Transformer Integrated CSS (Dry Type)
- Standard & customized enclosures
- Package Substation
- Compact systems for commercial projects
- Turnkey installation support
Why Choose Compact Substation Manufacturer in India?
Clients choose SPL Power because we combine engineering capability with dependable project execution.
Applications Of Compact Substations?
Our compact substations are used across the following sectors:
CSS Transformer Manufacturer India
As a CSS transformer manufacturer in India, SPL Power manufactures the distribution transformer at the core of every compact substation at our Chakan MIDC facility. We do not source transformers from outside and assemble CSS units around them — the transformer is our own product, wound and tested in-house. This matters because transformer quality is what determines the long-term reliability of the CSS unit. A cheap transformer in a well-built enclosure is still a cheap transformer.
Our CSS transformers are wound with electrolytic copper conductors, core-stacked with grain-oriented silicon steel laminations, and oil- filled with new transformer oil meeting IS 335. Every transformer is tested to IS 1180 and IS 2026 — including no-load loss, load loss, impedance voltage, and induced overvoltage withstand. Test certificates are provided at delivery.
Available ratings: 100 KVA to 3000 KVA. Voltage class: 11 KV / 415 V standard. 22 KV and 33 KV HT voltage class available on request for projects in higher-voltage distribution zones.
Package Substation Manufacturer India
A package substation is a compact substation in which the transformer, HT switchgear, and LT distribution panel are housed in separate but physically connected compartments within one outdoor enclosure. It is designed for utility feeders, industrial connections, and large residential or commercial projects where a standalone substation room is not practical.
SPL Power builds package substations at our Chakan MIDC facility as a complete package substation manufacturer in India. We handle engineering, fabrication of the steel enclosure, installation of HT RMU or VCBS, integration of our own distribution transformer, and LT panel assembly. The unit leaves our factory tested and goes to site ready for HT cable termination and LT feeder connection.
Package substations from SPL Power are suitable for:
Industrial plants and MIDC estate connections Residential township phases — one unit per feeder Commercial buildings — basement or outdoor pad-mounted IT parks and data centres Solar projects — AC collection point substations Hospitals with HT supply connections
Industrial plants
Residential townships
Commercial buildings
IT parks
Hospitals
Solar projects
Package substations save valuable space, reduce civil work, and simplify project execution.
Technical Specifications — Compact Substation
Specification | Details |
Transformer Type | Oil-cooled ONAN / Dry type VPI / Cast Resin |
KVA Rating | 100 KVA to 3000 KVA (higher on request) |
HT Voltage | 11 KV / 22 KV / 33 KV |
LT Voltage | 415V, 3 Phase, 50Hz |
HT Switchgear | Ring Main Unit (RMU) / VCBS (as per network) |
LT Panel | MCCB / SFU incomer with outgoing feeders |
Enclosure Material | 2.5mm CRCA MS, hot-dip galvanised or powder coated |
Protection Class | IP54 (standard outdoor) / IP65 (on request) |
Transformer Standards | IS 1180 / IS 2026 / IEC 60076 |
Switchgear Standards | IS 3427 (HT) / IS 8623 (LT switchboard) |
Conductor Material | Electrolytic copper winding |
Core Material | Grain-oriented silicon steel (CRGO) |
Cooling Medium | IS 335 new transformer oil (oil type) |
Insulation Class | Class A (oil type) / Class F/H (dry type) |
Vector Group | Dyn11 (standard) / others on request |
MSEDCL Compliance | Yes — Maharashtra utility approval documentation |
Delivery | 4 to 6 weeks from order confirmation |
Warranty | 12 months from energisation |
Frequently Asked Questions (FAQs)
Need a trusted Compact Substation Manufacturer in India or Compact Substation Manufacturer in Pune?
Send your project specification — HT voltage, KVA requirement, application type, and site location. We respond within 24 hours with a technical solution and indicative pricing. Distribution Transformer ,
