Lic: E.C No. 8921/2018/2936
24/7:+91 9310861858
Class-1 Licensed Electrical Contractor (Delhi: E.C No. 8921/2018/2936 • Jharkhand: JH/EC/3429)

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.

33kV / 66kVMax High-Voltage Rating
10 MVAMax Power Transformer Unit
100+ UnitsSubstations & Panels Energized
< 1.0 OhmGuaranteed Earth Grid Resistance
Core Engineering Divisions

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.

Turnkey 33kV Substation and Power Transformer Installation
High Tension EPC
⚡ Up to 33kV / 66kV

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.

Key Deliverables & Specifications:
  • ✓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
Transformer Erection and Mobile Oil Filtration Plant
Heavy Plant
⚡ Up to 10MVA (with OLTC)

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).

Key Deliverables & Specifications:
  • ✓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
11kV VCB Switchgear and HT Panel Installation
Switchgear Systems
⚡ 11kV VCB / 415V ACB

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.

Key Deliverables & Specifications:
  • ✓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 and Switchgear Bus Assembly
High-Rise & Data Centers
⚡ Up to 5000A Capacity

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.

Key Deliverables & Specifications:
  • ✓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 Underground Cable Laying and Tray Installation
Transmission & Distribution
⚡ 1.1kV to 33kV Grade

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.

Key Deliverables & Specifications:
  • ✓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
Substation Chemical Earthing Grid and Lightning Protection
Safety & Life Protection
⚡ Grid Resistance < 1.0 Ohm

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.

Key Deliverables & Specifications:
  • ✓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
Execution Methodology

The 5-Phase Substation Delivery Lifecycle

Our disciplined engineering workflow ensures full statutory safety compliance, verifiable quality audit trails, and zero-defect grid energization.

01Design & Sizing

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.

✓Complete electrical layout & sectional elevation CAD
✓Short-circuit withstand & fault calculation
✓Earthing grid conductor sizing as per IEEE 80
02Quality Audits

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.

✓Tier-1 OEM vendor sourcing & material traceability
✓Witnessed FAT for transformers, breakers & relays
✓Routine factory test certificates verification
03Site Execution

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.

✓Rigorous leveling and vibration dampener mounting
✓Calibrated torque wrench bolt tightening audits
✓Heavy HT/LT cable laying & heat-shrink termination
04Testing Fleet

Field Pre-Commissioning Diagnostics

Exhaustive pre-commissioning testing executed by our certified testing engineers using calibrated instruments to verify dielectric integrity and protection response.

✓100kV High-Voltage (HV) Hipot dielectric tests
✓Breaker open/close timing & CRM micro-ohm analysis
✓Secondary injection testing of numerical relays
05Formal Handover

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.

✓Electrical Inspectorate liaison & site audit clearance
✓Energization under controlled test procedure
✓Comprehensive as-built drawings & test report dossier
Renewable Energy Integration

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.

Request Solar Rooftop Feasibility⚡ Tier-1 Mono-PERC / TopCon Modules & String Inverters
Commercial and Industrial Solar PV Rooftop EPC
Industrial Solar RooftopDISCOM Net Metered
Proven Field Track Record

Featured Substation & Turnkey References

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

Browse All 25+ Completed Projects→
NTPC Kudgi Super Thermal Power Plant (3X800MW)
33kV / 11kV Substation
✓ 800MW Supercritical Utility Scale
Client: NTPC Limited

NTPC Kudgi Super Thermal Power Plant (3X800MW)

📍 Kudgi, Bijapur District, Karnataka

Wet Flue Gas Desulfurization (WFGD) Substation Erection & HT Breaker Commissioning

100% CommissionedView Scope Details →
11kV VCB Switchgear & Underground HT Conversion
11kV VCB Switchgear
✓ Continuous Explosive Plant Safety
Client: Indian Explosives Ltd. (ORICA Group)

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.

100% CommissionedView Scope Details →
Panki 1X660MW Supercritical Thermal Power Project
660MW Thermal Plant BOP
✓ Heavy Utility Ash Handling EPC
Client: ISGEC Heavy Engineering / UPRVUNL

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.

100% CommissionedView Scope Details →
Direct Substation Tender Desk

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.

✓ Delhi Class-1: E.C No. 8921/2018/2936✓ Jharkhand HV: JH/EC/3429✓ Up to 33kV / 10MVA Capacity