E-House manufacturer: electrical panel cabins

An E-House, also called a prefabricated substation or electrical house, is a steel enclosure built in a factory to hold electrical equipment: power control centres, motor control centres, switchgear, drives and control panels. It arrives on site as a finished room, ready to be set on its foundation and connected.

The alternative is a brick or RCC substation room built on site. That still makes sense for large, permanent installations with ample time and space. An E-House is the better choice when the programme is tight, when site labour and supervision are scarce, when the site is remote, or when the equipment may one day need to move. The enclosure is built in parallel with civil work, so the two programmes run side by side rather than one after the other.

Every E-House is built around the equipment it protects. Scope is confirmed per project, but the following are commonly housed:

• —PCC (power control centre) panels for incoming supply and distribution.
• —MCC (motor control centre) panels for pumps, fans, conveyors and process drives.
• —LT or HT switchgear, as specified for the project.
• —VFD and drive panels, which add heat load and usually drive the HVAC design.
• —Control, relay and protection panels, often with a small operator or SCADA room.
• —UPS and battery systems, frequently in a separate, ventilated room within the enclosure.

Transformers are normally placed outside the enclosure or in a dedicated bay; we plan the interface around your single-line diagram.

The enclosure is detailed around your panel GA drawings and site requirements. Provisions we can include:

• —Heavy-duty steel skid or base frame sized for panel loads, with lifting points for crane handling.
• —Cable entry from the bottom through floor cut-outs and gland plates, or from the top, as your cable routing requires.
• —Cable trench or false floor inside the enclosure to route cables to each panel.
• —Insulated PUF sandwich panels for walls and roof, keeping heat gain down and protecting against dust and rain.
• —HVAC or forced ventilation sized around panel heat loads, with provisions for pressurisation where the site is dusty or classified.
• —Provisions for fire detection and suppression systems, to the scope in your specification.
• —Internal and external lighting, emergency lighting points and small power.
• —Earthing arrangement with an internal earth bar, connected to the site earthing grid.
• —Lockable doors sized for panel entry and removal, plus a separate personnel door and emergency exits as required.

E-House buyers usually work to a project specification set by the owner, consultant or EPC contractor. Tell us the standards and client specifications your project requires — structural, electrical, fire and ingress protection — and we work to that specification and to the drawings you approve.

Before fabrication, we issue general arrangement drawings, base-frame and foundation-load details, and cut-out layouts for your approval. Every structure is inspected before dispatch. If your project requires witnessed inspection or specific test records, include it in the enquiry so it can be planned into the programme.

An E-House travels by road, so the module size is set by what can legally and safely move between our Umbergaon factory and your site. Width and height are usually the governing limits; route surveys may be needed for very large modules. Where the room is larger than one module, it is split into sections that are joined and sealed on site.

• —Foundation: a level RCC plinth or pedestals at the skid bearing points, with cable trench or cellar openings aligned to the floor cut-outs.
• —Access: a hard route for the trailer and a firm, level area for the crane.
• —Lift: the module is lifted by its lifting points using spreader beams, and set directly on the foundation.
• —Completion: anchoring, joining of multi-module sections, earthing connection and hook-up of external services.

1. 01Brief — you share the panel list, panel GA, single-line diagram, site location and specification.
2. 02Layout — we develop the enclosure layout around your panel GA, with clearances, cable entries and access.
3. 03Approval drawings — GA, base frame, cut-outs, HVAC and lighting layouts issued for your comments and approval.
4. 04Fabrication — base frame, structure, panels and provisions built at our factory in Umbergaon, Gujarat.
5. 05Inspection — the finished enclosure is checked against the approved drawings before dispatch.
6. 06Delivery — by road to your site, planned around the route and crane availability.
7. 07Installation — setting on the foundation, joining modules where applicable and handing over for panel hook-up.

The panel line-up sets the internal length and depth, with clearances in front for operation and behind or at the ends for maintenance access. Heat load from drives and switchgear sets the HVAC capacity. The site sets insulation, finish and sealing — coastal humidity, desert dust and monsoon rain each ask for different detailing. Our guides on sizing an E-House around your panels and specifying an E-House for an RFQ go deeper on each point.

With 20 years of fabrication behind us and more than 100 clients served, we build E-Houses for power, solar, industrial and infrastructure projects across India. Send us your panel GA and panel list, with the site location and any specification you are working to, and we will come back with a layout and a proposal.