11 kV & 33 kV Sub-Stations, Designed and Delivered End-to-End
From load study and single-line diagram to installation, testing and energization – Olokan Electric builds sub-stations that give your plant stable, safe and fully compliant power.
The Heart of Your Plant's Power Supply
Every sub-station we build is sized from your real connected load, power factor and expansion plans – not guesswork. One team handles design, equipment supply, civil and erection work, testing and utility coordination, so you have a single point of responsibility from start to switch-on.
- Capacities from 100 kVA to 2,500 kVA and above
- Built to utility and IEC practice
- Complete test reports and documentation at handover
- Spare parts and AMC support after commissioning
A Complete Sub-Station, One Contract
Distribution Transformer
Oil-immersed or dry-type transformers sized to your load with a safety margin for growth.
HT Switchgear
VCB / LBS panels, metering panel, protection relays, CTs and PTs.
LT Panel
ACB / MCCB incomer and outgoing feeders with busbars sized for future expansion.
PFI Plant
Automatic power factor improvement panel with capacitor banks to avoid utility penalties.
HT/LT Cabling
Cable sizing, laying, jointing and termination between every piece of equipment.
Earthing & Lightning Protection
Neutral and body earthing, earth grid and surge protection for the whole installation.
From Survey to Switch-On in Five Steps
Site Survey & Load Study
We list your machines, running hours and future expansion plans.
Design
Capacity sizing, single-line diagram, layout drawing and bill of materials.
Supply & Installation
Equipment delivery, civil foundation, erection and cabling.
Testing & Commissioning
Insulation, relay, transformer and earth-resistance tests with written reports.
Utility Support & Handover
Documentation and coordination for connection, plus operator training.
One Team From Design to After-Sales
One Responsible Team
Design, products, installation and after-sales from a single company.
Load-Based Sizing
Capacity calculated with a 25% safety margin – no overpaying, no overloading.
Parts From Our Own Stock
Sub-station components and switchgear available directly from Olokan.
Long-Term Support
Maintenance, troubleshooting and AMC to keep your sub-station healthy.
Frequently Asked Questions
Can’t find your answer? Talk to our engineers – we reply quickly.
It depends on your connected load, power factor and how many machines run at the same time. As a starting point, divide your total kW by the power factor (typically 0.8) and add a 25% margin. Our calculator does this instantly, and our engineers confirm it with a site load study.
Inductive loads such as motors lower your power factor. That increases current, cable losses and utility penalties. A correctly sized PFI plant keeps power factor close to unity and reduces your electricity bill.
Yes. We prepare the drawings and test documentation needed for connection and coordinate with the utility on your behalf.
Yes. We assess your current transformer, switchgear and cabling, then recommend a capacity upgrade or replacement plan with minimal shutdown time.
Related Services & Products
Get Your Sub-Station Sized Today
Enter your load for an instant capacity recommendation, then request an official technical estimate.