SERVICES AND FACILITIES

MAINTENANCE

Our company provides periodic and predictive maintenance services to improve the operational life and performance of equipment at your facilities, to decrease operational costs, and to prevent possible failures.

During periodic maintenance to be performed at predetermined times, the condition of the equipment is checked, changing equipment in a faulty condition; and equipment likely to fail is taken under observation.

In predictive maintenance, monitoring equipment at specific time intervals, failure is confronted before it forms and thus a continuity of operation is ensured.

Our company provides the following maintenance services with calibrated primary and secondary test devices, expert engineers on the subject, and a technician team.

TRANSFORMER MAINTENANCE SERVICES:

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         ✓  Electrical Tests

         ✓  Function Tests

         ✓  Transformer Oil Chemical Analysis;

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                ✓  Power Factor

                ✓  Breakdown Voltage

                ✓  Internal Surface Tension

                ✓  Water Content

                ✓  Acidity Determination

                ✓  ASTM Color Determination

                ✓  Density Determination

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         ✓  Transformer Oil Gas Analysis:

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                ✓  Hydrogen-H2

                ✓  Methane – CH4

                ✓  Carbon monoxide – CO

                ✓  Carbon dioxide – CO2

                ✓  Ethylene-C2H4

                ✓  Ethane2H6

                ✓  Acetylene – C2H2

                ✓  Oxygen – O2

                ✓  Nitrogen – N2

                ✓  CO2/CO

                ✓  TDGA

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         ✓  Transformer Maintenance Services:

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                ✓  Transformer Oil Filling / Vacuum and Treatment

                ✓  Transformer Oil Supply

                ✓  HV-LV Bushing, Gasket, and Silicagel Replacement

                ✓  Buchholz Relay Replacement and Testing

                ✓  Pressure Relief Valve Trip Function Testing and Checking

                ✓  Removal of Oil Leaks in Transformer

                ✓  Surface Cleaning, Paint Checking and Retouching

                ✓  Transformer Function Tests

                ✓  Tap Changer Maintenance

                ✓  Spark Gap Checking and Adjusting

                ✓  Torquing and Marking of H.V. / M.V. / L.V. Connectors

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PROTECTIVE AND CONTROL RELAY MAINTENANCE SERVICES:

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         ✓  Performing Functional Tests for All Types of Protective Relays with the Secondary Injection Method

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GROUNDING MEASUREMENTS (WITH SELVAZ AND 3-POINT METHODS)

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         ✓  Operation – Protection – Lightning Rod – Surge Arrester Grounding Measurement

         ✓  Step Voltage Measurement

         ✓  Touch Voltage Measurement

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CIRCUIT BREAKER TESTS AND MAINTENANCE:

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         ✓  Electrical Tests

         ✓  Maintenance Operations;

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                ✓  Circuit Breaker Opening and Closing Time Measurement

                ✓  Circuit Breaker Motor Control

                ✓  Circuit Breaker Spring Mechanism Control

                ✓  Circuit Breaker Cabling Control

                ✓  Maintenance of Circuit Breaker Main Contacts

                ✓  Lubrication and Cleaning of Circuit Breaker Moving Mechanism

                ✓  Circuit Breaker SF6 Level Control and Filling if Necessary

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DISCONNECTOR TESTS AND MAINTENANCE:

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         ✓  Contact Resistance Tests

         ✓  Function Tests

         ✓  Maintenance Operations;

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                ✓  Control and Maintenance of Main Contacts

                ✓  Dust Removal and Lubrication of Moving Mechanism

                ✓  Inspection and Cleaning of Insulators

                ✓  Adjustment of Mechanism

                ✓  Cleaning and Lubricating of Busbar Connection Points

                ✓  Additional Checks of Disconnector Motor

                ✓  Replacement of the Insulator

                ✓  Repair and Replacement of the Mechanical Apparatus

                ✓  Replacement of the Bearings, Seals, and Pistons

                ✓  Repair and Replacement of the Control Panel Equipments

CURRENT TRANSFORMER TESTS AND MAINTENANCE:

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         ✓  Power Factor Test

         ✓  Turn Ratio Test

         ✓  Polarity Test

         ✓  Saturation Test

         ✓  DC Isolation Test

         ✓  Load Test

         ✓  Maintenance Operations;

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                ✓  Current Transformer Terminal Wiring Control

                ✓  Control of Oil Levels in Oiled Current Transformers

                ✓  Primary Connection Check and Cleaning

…

VOLTAGE TRANSFORMER TESTS AND MAINTENANCE:

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         ✓  Power Factor Test

         ✓  Turn Raito Test

         ✓  Maintenance Operations:

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                ✓  Voltage Transformer Terminal Wiring Control

                ✓  Primary Connection Check and Cleaning

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SURGE ARRESTER MAINTENANCE

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NEUTRAL RESISTANCE MAINTENANCE

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BUSBAR MAINTENANCE

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GENERATOR CIRCUIT BREAKER (GCB) MAINTENANCE

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GENERATOR MAINTENANCE

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MAINTENANCE OF UPS AND DC POWER SYSTEMS

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