Department 02 · Distribution

Transformer Commissioning & Testing.

Site installation, oil filtration, complete pre-commissioning testing and statutory energisation of distribution and power transformers.

Overview

What this department delivers

From small 25 kVA distribution units to multi-MVA power transformers at HT substations, our team handles unloading, placement, oil filtration, all electrical pre-commissioning tests, KSEB-witnessed checks and final charge-up. We supply test reports compliant with IS 2026 and KSEB protocols.

Capabilities

Core service scope

Site Installation

Plinth preparation, transformer placement, bus-bar and cable termination.

Oil Filtration

Vacuum oil filtration and dielectric strength testing up to BDV ≥ 60 kV.

IR & PI Testing

Winding and core insulation resistance, polarisation index and ratio tests.

Tan Delta & SFRA

Diagnostic testing for winding condition and insulation health.

Relay Coordination

OC, EF, REF and differential relay setting and end-to-end testing.

Annual O&M

Scheduled maintenance contracts with thermography and oil sampling.

Execution Process

From inquiry to energisation

01

Site Prep

Foundation check, earthing and pre-installation survey.

02

Installation

Placement, assembly of accessories and oil filling.

03

Testing

Full suite of pre-commissioning electrical tests.

04

Energisation

KSEB witness, charge-up and trial-run monitoring.

Track Record

Why clients choose this division

Decades of combined field experience, strict QA protocols and a clean compliance record with KSEB and statutory authorities.

Discuss a Project
  • 200+ distribution transformers commissioned across Kerala
  • In-house Megger, BDV kit, tan delta and SFRA test instruments
  • Calibrated test reports accepted by KSEB and Electrical Inspectorate
  • 24×7 emergency breakdown support for industrial clients