Turnkey Electrical EPC & Substation Engineering up to 33kV
Complete Supply, Installation, Testing & Commissioning (SITC) of package substations, power transformers up to 10MVA with OLTC, 11kV VCB switchgear panels, sandwich busbar trunking, and sub-1-Ohm chemical earthing grids for power utilities and heavy industries.
Turnkey Substation & Power Infrastructure Capabilities
From greenfield 33kV yard establishment to high-rise busbar risers, our certified engineers manage procurement, civil integration, electrical erection, and statutory energization.

33kV / 11kV Package Substations & Switchyards
Full turnkey Supply, Installation, Testing & Commissioning (SITC) of outdoor and indoor substations, Air-Insulated (AIS) and Gas-Insulated (GIS) configurations, 2-pole/4-pole DP structures, gang-operated air break switches, and lightning arresters.
- ✓SITC of 33kV & 11kV Two-Pole / Four-Pole DP Structures
- ✓Air Break (AB) Isolating Switches & Drop-Out (DO) Fuses
- ✓Substation Yard Civil Plinths, Transformer Bays & Fencing
- ✓Control Room Engineering, Battery Bank & DC Auxiliaries

Power & Distribution Transformers up to 10MVA
Precision skidding, erection, and commissioning of oil-immersed power transformers and dry-type cast resin transformers. Integrated with On-Load Tap Changers (OLTC), Remote Tap Changer Control (RTCC) panels, and Nitrogen Injection Fire Protection Systems (NIFPS).
- ✓Oil-Immersed & Dry-Type Cast Resin Transformers up to 10MVA
- ✓OLTC Interfacing, RTCC Remote Panels & AVR Tuning
- ✓High-Vacuum Oil Filtration, BDV Dielectric & DGA Testing
- ✓Buchholz Relays, Marshalling Boxes & Temperature Indicators

HT/LT Switchboards & Ring Main Units (RMU)
Supply, alignment, and commissioning of modular 11kV Vacuum Circuit Breaker (VCB) panels, Ring Main Units (RMU), Power Control Centers (PCC), and Motor Control Centers (MCC) equipped with microprocessor-based numerical protection relays.
- ✓11kV Indoor VCB Switchboards with Arc-Proof Construction
- ✓Compact SF6 / Solid Insulated Ring Main Units (RMU)
- ✓Fully Type-Tested 415V PCC & Intelligent Draw-out MCC Panels
- ✓Numerical Overcurrent, Earth Fault & Differential Protection Schemes

Sandwich Busbar Trunking (BBT) & Rising Mains
Engineered sandwich busduct systems for high-density power transmission in Tier-IV data centers, IT business parks, commercial towers, and industrial manufacturing floors with minimal voltage drop and superior short-circuit withstand.
- ✓Compact Sandwich Copper & Aluminum Busducts up to 5000A
- ✓Vertical Rising Mains with Tap-Off Boxes (TOB) for Commercial Towers
- ✓Transformer-to-Panel Flange Connections & Flexible Expansion Bellows
- ✓Precision Torque Audits & Contact Resistance Certification

HT/LT Underground Cabling & Raceways
Complete underground power distribution networks: mechanized trenching, sand cushioning, protective tiling, HT XLPE cable laying, certified heat-shrink/cold-shrink terminations, and heavy-duty pre-galvanized ladder and perforated cable trays.
- ✓11kV / 33kV Grade Armored XLPE Power Cabling & Trenching
- ✓Heat-Shrinkable & Cold-Shrinkable Straight Joints & Terminations
- ✓Heavy-Duty Ladder & Perforated Cable Tray Raceway Systems
- ✓Hi-Pot Insulation & Core-to-Earth Dielectric Verification

Chemical Earthing Grids & Lightning Protection
Engineered substation ground mat design and execution compliant with IS 3043 and IEEE 80 standards. Deep-driven copper-bonded electrodes, low-resistivity chemical backfill compounds, and Early Streamer Emission (ESE) lightning arresters.
- ✓Copper-Bonded High-Conductivity Chemical Earth Electrodes
- ✓Maintenance-Free Low-Resistivity Carbonaceous Backfill Compounds
- ✓Interconnected Heavy Copper / GI Earth Bus Tape & Ground Mats
- ✓Certified Multi-Point Fall-of-Potential Earth Resistance Audits
The 5-Phase Substation Delivery Lifecycle
Our disciplined engineering workflow ensures full statutory safety compliance, verifiable quality audit trails, and zero-defect grid energization.
SLD Design & Fault Level Engineering
Comprehensive single-line diagram (SLD) preparation, transformer kVA sizing, fault level calculations (KA), cable voltage drop verification, and protection relay curve coordination.
Procurement & Factory Acceptance (FAT)
Transparent procurement of OEM equipment (Transformers, VCBs, RMUs, Busducts) from tier-1 manufacturers with witness Factory Acceptance Tests (FAT) before site dispatch.
Civil Integration & Equipment Erection
Precision civil plinth construction, transformer skidding onto foundation rails, switchboard vertical & horizontal alignment, busbar torque checking, and cable tray raceway erection.
Field Pre-Commissioning Diagnostics
Exhaustive pre-commissioning testing executed by our certified testing engineers using calibrated instruments to verify dielectric integrity and protection response.
CEIG Statutory Sanction & Energization
Complete technical liaison with the Chief Electrical Inspector to Government (CEIG) / CEA. Submission of as-built drawings, test dossiers, and formal energization sanction.
Commercial & Industrial Solar PV Rooftop EPC
Complementing high-voltage substations with sustainable distributed power generation. Manki Engineers provides turnkey solar rooftop EPC, reducing industrial energy tariffs while maintaining 100% electrical grid stability.
Grid-Tied Commercial & Industrial Rooftop EPC
Turnkey engineering from 50kW to 1MW+ for manufacturing plants, logistics warehouses, cold storages, and educational institutions.
State DISCOM Net Metering Liaising
End-to-end statutory approvals, bi-directional import-export meter installation, and grid synchronization with state utilities.
Substation Synchronization & LT Integration
Safe tie-in with existing LT panels, automatic phase synchronization, reverse power protection relays, and solar AC distribution boards (ACDB).
Plant SCADA & Real-Time Performance Analytics
Cloud-connected smart monitoring logging daily kWh generation, PR ratio, solar irradiance, and inverter string health.

Featured Substation & Turnkey References
Real high-tension electrical installations executed for India's leading power generation corporations and heavy industrial facilities.

NTPC Kudgi Super Thermal Power Plant (3X800MW)
📍 Kudgi, Bijapur District, Karnataka
Wet Flue Gas Desulfurization (WFGD) Substation Erection & HT Breaker Commissioning

11kV VCB Switchgear & Underground HT Conversion
📍 Gumia, Bokaro District, Jharkhand
Supply, installation, testing and commissioning of 11kV Vacuum Circuit Breakers (VCB) and underground HT power cabling.

Panki 1X660MW Supercritical Thermal Power Project
📍 Panki, Kanpur, Uttar Pradesh
Complete electrical auxiliary switchboards, motor control centers (MCC), and power cabling for the Ash Handling Plant.
Need an Itemized Substation BOQ or Turnkey EPC Proposal?
Submit your single-line diagram (SLD), transformer specifications, or tender drawings. Our licensed project engineers provide transparent unit costing within 24–48 hours.
