TEST AND COMMISSIONING

The planning of the commissioning is established during the engineering phase, where critical paths and shutdown philosophy are analyzed and agreed upon

Pre-commissioning involves preparing the system or equipment for commissioning by verifying its proper installation and readiness for operation. Commissioning, on the other hand, focuses on ensuring that the equipment or system is not only operational but also meets the specified requirements.

SUBSTATION COMMISSIONING INCLUDE:

Substation High Voltage Equipment’s test

Substation High Voltage Equipment’s test

High Voltage Equipment such as Circuit Breaker, Transformer, Disconnector Switch, CT, VT, CVT, Line Trap, Surge Arrester included: Insulation tests, Megger, High pot, Measuring current and voltage, Stability tests, Carrying CTs, Contact Resistance, CB Spring Charge and Discharge, Power factor testing, CT /VT Retio and Polarity.

DCS System & Automation system

DCS System & Automation system

For Automation panel PLC and RTU system, SCADA and metering system and DCS system

Relay Protection Configuration & Test

Relay Protection Configuration & Test

Configuration and relay settings for ABB, SIEMENS, AREVA, SCHNEIDER, etc. included some functions as below: (Differential, Earth fault, Distance, Overcurrent, Overvoltage, Protective Relay for Over Headline Hv Equipment Synchronize Machine, etc.)

	GIS Equipment’s test

GIS Equipment’s test

Tests of the GIS equipment included: power frequency, impulse, partial discharge, megger, insulation resistance test, SF6 Analyzer, leakage detector, primary injection, and secondary injection.

	Transformer Test

Transformer Test

Electrical tests of transformers include: conversion (ratio), DC resistance, flux division, Megger, Percentage impedance, Tap changer continuity, Winding Resistance, Short circuit impedance, Power Factor CT-VT Test and... Transformer mechanical tests include the following: Buchholz, Johnson relay test, Pressure relief valve, Winding temperature and Oil temperature, Oil level, airbag and cooling system