HT/LT electrical contractor and consultant —substations and power distribution up to 33 kV
High- and low-tension power distribution, indoor/outdoor substations, RMUs, VCBs and metering — designed, installed and tested to CEA norms.
Enquire: HT / LT Distribution & Substations
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What is needed before sizing a factory substation?
Start with the sanctioned supply arrangement and a load schedule that distinguishes connected loads, simultaneous demand, starting duties and planned growth. These inputs establish the distribution scheme before equipment ratings are finalised.
- Acceptance evidence to agree
- Confirm protection coordination, equipment test records and the applicable inspection and energisation sequence.
Prepare your enquiry and compare the installation scope →
Use this checklist to define the brief. Final selections and acceptance criteria depend on the site, applicable requirements and approved project design.
HT / LT Distribution & Substations by Secured Engineers Pvt. Ltd.
Secured Engineers Pvt. Ltd. — an MEPF & solar EPC contractor and consultant with offices in Ludhiana, Punjab and Noida (Delhi NCR) — provides HT / LT Distribution & Substations as part of its Electrical scope: High- and low-tension power distribution, indoor/outdoor substations, RMUs, VCBs and metering — designed, installed and tested to CEA norms. 535+ projects across 18+ Indian states.
Enquiries: +91 70099 85817 · sales@securedengineers.com · request a project proposal
See also: EV charging station installation · Industrial electrical contractor and consultant in Noida · Industrial electrical contractor and consultant in Ludhiana
What this system decides for your project
The substation is where reliability and safety begin. Correct protection coordination and CEA-compliant design prevent outages, equipment damage and inspection delays.
You need a quote for this if: Factories, campuses or buildings drawing HT supply or needing a new substation.
Scope of work
The substation is designed from the DISCOM sanction and the load list — voltage level, transformer capacity, the HT switchgear (RMU or VCB panel), the metering arrangement, LT distribution and a protection scheme that coordinates from the DISCOM feeder down to the last breaker. We prepare the single-line diagram with protection settings, the layout with the clearances the CEA regulations require, the earthing and the cable schedules, and we supply and install the switchgear, transformers, cabling and earthing, and the substation's own lighting, ventilation and fire protection.
How it is delivered — and what you receive
The CEIG drawing approval comes before civil work, so the substation is built to an approved scheme rather than corrected after inspection. Equipment arrives with factory test certificates; on site we run the insulation-resistance, high-voltage, relay and earth-resistance tests, and attend the CEIG inspection with the records ready. Energisation follows the clearance and the DISCOM's metering. The client receives the approved drawings, the test reports, the CEIG clearance and the protection settings — the file the periodic inspection will ask for.
Sources and standards
- IS 732 (2019) — IS 732 — Code of Practice for Electrical Wiring Installations. Bureau of Indian Standards. Publisher. Low-voltage wiring installations — cable selection, protection, installation methods.
- IS 3043 (2018) — IS 3043 — Code of Practice for Earthing. Bureau of Indian Standards. Publisher. Earthing system design, electrodes, resistance values and testing.
- IEC 61439 — IEC 61439 — Low-voltage switchgear and controlgear assemblies. International Electrotechnical Commission. Publisher. Design verification and type-testing of LT panels — PCC, MCC, distribution boards.
- CEA (Measures relating to Safety and Electric Supply) Regulations (2023 (superseding the 2010 regulations)) — Central Electricity Authority (Measures relating to Safety and Electric Supply) Regulations. Central Electricity Authority. Publisher. Safety requirements for electrical installations, inspection of HT installations before energisation, periodic inspection, earthing and protection.
- NBC 2016 Part 8 (2016) — National Building Code of India 2016, Part 8 — Building Services. Bureau of Indian Standards. Publisher. Lighting, ventilation, air-conditioning, electrical installations, lifts and escalators — the building-services framework.
Standards are cited to support the technical statements on this page. Where a standard has been revised, the edition shown is the one verified at the time of review; the edition in force for a project is the one the authority applies.
Before you ask us to quote: the Electrical buyer's guide lists what to have ready, what drives cost and timeline, and the approvals that usually apply. Writing the tender? The electrical specification library has 5 code-referenced clauses architects and consultants can drop into tender documents.
Define the electrical connection and energisation scope
For a new factory connection or a load enhancement, the utility sanction and the proposed load determine the substation brief. An equipment quotation without these inputs leaves the connection and protection interfaces unresolved.
What to send with your enquiry
- Site and state, proposed energisation date, and the DISCOM sanction or current status of the connection application.
- Connected-load list, expected maximum demand, major motor starting loads and the next planned expansion.
- Existing or proposed single-line diagram, site layout, substation space and cable-route lengths.
- Existing equipment and protection records for an expansion, plus the permitted shutdown and operating constraints.
Compare the same scope
Allocate utility coordination, inspection submissions, civil works, transformer and switchgear supply, metering, earthing, protection testing and energisation support explicitly. Equipment delivery and permission to energise are separate milestones; confirm the authority requirements for the actual site.
Makes we specify for HT / LT Distribution & Substations
Tier-1 manufacturers whose equipment we design around and install. The specification names the make; the site is held to it.
Related to HT / LT Distribution & Substations
The terms behind it
Run the numbers
Read before you specify
- The Plant Is Ready. The Power Isn't. Decoding HT Connection Delays in North India.
- Factory Electrical Load Enhancement: From Measured Demand to an Approved Connection
- Maximum Demand and Time-of-Day Tariffs: Plan the Expansion on Interval Data
- Transformer Capacity for Factory Growth: Start From Measured Demand
Need HT / LT Distribution & Substations for your project?
Get a free consultation and quote. We design, prepare and file your approvals, and execute — you deal with one team.
Guides that reference this page
- MEP Design for an EV or Battery Plant: Dry Rooms, Fire Risk and Power Density
- HT Panel Specification for a Factory: VCB, Relays, Metering and What to Demand
- Choosing an Industrial Electrical Contractor: Licences, HT Capability and the CEIG Record
- LT vs HT Connection for a Factory: Tariff, Works and When to Switch
- Your Shopfloor Is Probably Lit Wrong in Both Directions at Once
- Bus Duct or Cable? How to Choose for Factory Power Distribution
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