SERVICES

Power Plants, Factories, Malls ,HV-LV Subsration Periodical Maintenance

Power Plants, Factories, Malls, HV-LV Substation Periodical Maintenance

Electricity Generation and Distribution Facilities, Factories, AVM and 154 kV - 380 kV Transformer Centers; We are able to perform periodic preventive maintenance of the facilities with our experienced cadres. The main purpose is; Maintenance / repair / parts replacement of equipment, especially those directly affecting production facilities, in pre-determined times to reduce the frequency of failure.

'Periodic / Planned Care and Rehabilitation Aims;
  • Quality, safe and continuous energy production
  • Increase the efficiency of the facility and substation to the highest level
  • Reduce production costs
  • Reduce unexpected failures
  • Minimize the use of unnecessary materials
  • Minimize unwanted events, trip and unplanned loads, etc
  • Prevent premature failures by pre-detecting faults
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These main criteria are the factors directly affecting the performance of the facilities and substations.

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  1. HV SUBSTATION TESTS
    1. TRANSFORMER SUBTATION
    2. GIS
  2. MV - LV SWITCHYARD
    1. Distribution Panels
    2. Motor Control Panels
    3. Metal Clad Panels
    4. Modular Panels
    5. OG Panels
  3. ROTARY MACHINES
    1. Genertors
    2. Motors
  4. TRANSFORMERS
    1. POWER TRANSFORMERS( >5 MVA )
    2. Distribution Transformer ( < 5 MVA )
    3. Reactors and Special Type Transformers
  5. CIRCUIT BREAKER
    1. SF6 filled Type
    2. Vacuum Type
    3. Oil Type
  6. DISCONNECTOR
    1. Internal Disconnectors
    2. External Disconnectors
    3. Pantograph Disconnector
  7. CURRENT TRANSFORMERS
  8. VOLTAGE TRANSFORMERS
  9. CAPACITOR BANKS
  10. SURGE ARRESTERS
  11. POWER CABLES
  12. NEUTRAL EARTHING RESISTANCE
  13. BUSDUCTS
  14. DC BATTERY AND UPS
  15. TRANSFORMER OIL ANALYSES
  16. CONTROL AND PROTECTION RELAY SET AND TESTS
  17. EARTHING MEASUREMENTS
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Periodical Maintenance and Installation

  1. HV SUBSTATIONS

    1. DOUBLE BAS SWITCHYARD
    2. GIS

      a. HV SWITCHYARD PERIODICAL MAINTENANCE TESTS
      • Transformer Tests
      • Surge Arrester Tests
      • Neutral Earthing Resistance Tests
      • Voltage Transformer Tests
      • Current Transformer Tests
      • Circuit Breaker Tests
      • Disconnector Tests
      • Cable Tests
      • D.C Voltage Control
      • Protection Relay Set and Tests
      • Measurement Device Tests
      • Earthing Resistance Tests
      • Ups ve Battery system Tests and Controls

      b. HV Switchyard Maintenance, Installation and Repair
      • Transformer Maintenance, Repair and Replacement
      • Surge Arrester Maintenance, Repair and Replacement
      • Neutral Earthing Resistance Maintenance, Repair and Replacement
      • Voltage Transformer Maintenance, Repair and Replacement
      • Current Transformer Maintenance, Repair and Replacement
      • Circuit Breaker Maintenance, Repair and Replacement
      • Disconnector Maintenance, Repair and Replacement
      • D.C Voltage Control
      • Ups and Batterty System Maintenance
      • Mechanical Control, Lubricate and Cleaning
      • Primer ve Seconder Connection and Cabling Control
      • SF6 and Vacuum Control , SF6 Supplemet and Leak Control
      • Busduct Control and Torquing
      • Protection Relays Replacement



  2. MV - LV SWITCHYARD

    1. Distribution Panels
    2. Motor Control Panels
    3. Metal Clad Panels
    4. Modular Panels
    5. OG Panels

      MV-LV SWITCHYARD PERIODICAL MAINTENANCE TESTS
      • Busduct DC Insulation Resistance Measurement
      • D.C Hi-Pot Tests
      • Voltage Transformer Tests
      • Current Transformer Tests
      • Circuit Breaker Tests
      • Disconnector Tests
      • Busduct Contact Resistance Tests
      • Control Relay Set and Tests
      • Measurements Devices Tests
      • Ups and Battery System and Tests

      MV-LV Switchyard Maintenance, Installation and Repair
      • Voltage Transformer Maintenance, Repair and Replacement
      • Current Transformer Maintenance, Repair and Replacement
      • Circuit Breaker Maintenance, Repair and Replacement
      • Disconnector Maintenance, Repair and Replacement
      • Mechanical Control, Lubricate and Cleaning
      • Primer ve Seconder Connection and Cabling Control
      • SF6 and Vacuum Control , SF6 Supplemet and Leak Control
      • Busduct Control and Torquing
      • Protection Relays Replacement






  3. ROTARY MACHINES
    1. Generators
    2. Motors
      Rotary Machines Periodical Maintenance Tests
      • Tip Up ( % PF, Tan?, Capasitance ) Tests
      • Insulation Tests
      • D.C High Voltage Withstand Tests
      • DC Resistance Tests
      • Rotor Winding Empedence Tests
      • Pole Voltage Tests
      • Generator Rotor and Stator Drying

  4. TRANSFORMERS
    1. Power Transformers ( >5 MVA )
    2. Distribution Transformer Tests( < 5 MVA )
    3. Reactors and Special Type Transformers
      Transformatör Periodical Maintenance Tests
      • Power Factor ( % PF, Tan?, Kapasite ) Tests
      • Exciting Current Tests
      • Insulation Resintance Tests
      • Transformer Turn Ratio Tests ( Each tap )
      • Windings Resistance Tests ( Each tap )
      • Frequence Response Analysis ( FRA )
      • Bushing Tests
      • Inductance Tests

      Transformer Maintenance and Installation
      • Power Transformers Complete Field Assembly
      • Transformer Field Oil Filling / Vacuum and Treatment
      • Transformer oil samples for electrical tests and dissolved gas analysis
      • Functional control and verify of buchholz relay alarm and trip
      • Functional control and verify of pressure relief trip
      • Control panel,components and wiring control
      • On load tap changer control , test and maintenance
      • Checking and adjusting the arc horns
      • Torque check of H.V,M.V and L.V connection
      • Current transformer terminal control
      • Earthing connection control of transformer and equipments
      • Prufy the trasformer from dust and oil
      • Local and total paint-works of transformer tank and equipments



  5. BREAKERS
    1. Vacuum Circuit Breakers
    2. SF6 Circuit Breakers
    3. Low-level oil Circuit Breakers
      Circuit Breaker Periodical / Fault Maintenance Tests
      • Power Factor ( % PF, Tand, Capt. ) Tests
      • Insulation Resistance Tests
      • Open-Close Timing Tests ( contact operation timing)
      • Contact Resistance Tests
      • SF6 Gas / Vacuum Tests

      Circuit Breaker Maintenance & Installation
      • Circuit breakers open-close coil control
      • Circuit breaker spring charge motor control
      • Circuit breaker spring control
      • Circuit breaker secondary cabling control
      • Circuit breaker to bus connection point maintenance
      • Prufy and lubrication of movable mechanism of circuit breaker
      • Circuit breaker SF6 , vacuum level control and adding


  6. SWITCHES
    1. Internal Disconnecting Switches
    2. External Disconnecting Switches
    3. Pantograph Disconnecting Switches
      Disconnecting Switch Periodical / Fault Maintenance Tests.
      • Contact Resistance Tests
      • Contact Pressure Tests
      • Disconnecting Swicth Insulators Insulation Resistance Tests

      Disconnecting Switch Maintenance and Installations
      • Contacts controls and maintenance
      • Prufy and lubrication of movable mechanism
      • Control and cleaning of insulators
      • Adjustment of mechanism
      • Checking the control panel and components
      • Measurement of motor current value after maintenance
      • Cleaning and lubrication of bar connections
      • Control of disconnecting switch motor
      • Renewal of disconnecting swicth motor
      • Insulator changing
      • Repair and changing og mechanical equipments
      • Bearing, gasket and rings changing
      • Control panel equipments repair and changing




  7. Current TRANSFORMER
    Current Transformer Periodical / Fault Maintenance Tests
    • Power Factor ( % PF, Tand, Capt. ) Tests
    • Insulation Resistance Tests
    • Rato Tests
    • Doyma Testleri
    • Saturation Tests
    • Polarity Tests
    • Winding Resistance Tests

    Current Transformer Maintenance and Installations
    • Current transformer secondary terminal cabling control
    • Oil level control at oil type current teansformer
    • Primary connection control and cleaning


  8. VOLTAGE TRANSFORMER
    Voltage Transformer Periodical / Fault Maintenance Tests
    • Power Factor ( % PF, Tand, Capt Tests
    • Exciting Current Tests
    • Insulation Resistance Tests
    • Voltage Turn Ratio Tests
    • Winding Resistance Tests
    Voltage Transformer Test, Maintenance and Installations
    • Voltage transformer terminal cabling control
    • Primary connection control and cleaning



  9. CAPASITOR BANKS
    Capasitor Bank Periodical / Fault Maintenance Tests
    • Power Factor ( % PF, Tand, Capt. ) Tests
    • Capasitance Tests
    • Insulation Resistance Tests
    • Current Transformer Tests
    • Current Limiting Reactor Tests
    Capasitor Bank Maintenance and Installations
    • Control and elimination of oil leakage of capacitors
    • Capacitor,current transformer and current limiting reactor detailed cleaning
    • Capacitor,current transformer and current limiting connection and torque control
    • Capacitor changing
    • Capacitor and current transformer busings changing
    • Connection lines changing

  10. SURGE ARRESTORS
    Surge Arrestor Periodical / Fault Maintenance Tests
    • Power Factor ( % PF, Tand, Cap. ) Tests
    • Izolasyon Direnci Testleri
    • Earthing Resistance Tests

    Surge Arrestor Maintenance and Installations
    • Checking counter
    • Checking earthing connector
    • Checking the primary connection and cleaning the surge arrestor

  11. POWER CABLES
    Power Cables Periodical / Fault Maintenance Tests
    • Power Factor ( % PF, Tand, Capt. ) Tests
    • Insulation Resistance Tests
    • D.C High Voltage Withstand Tests ( Hi-pot )

    Power Cables Maintenance and Installation
    • Internal and external header control of power cable
    • Control of addition points and connections
    • Installation of Internal and external power cable termination
    • Power cable insertion

  12. NEUTRAL RESISTANCE
    Neutral Resistance Periodical / Fault Maintenance Tests
    • Insulation Resistance Tests
    • D.C Resistance Tests
    • Neutral Resistance Current Transformer Complete Tests
    • Neutral Resistance Voltage Transformer Complete Tests

    Neutral Resistance Maintenance and Installation
    • Control and Cleaning of neutral resistance bushings
    • Control of physical condition
    • Insulator replacement
    • Mechanical equipments repairs and replacemesnt
    • Current transformer replacement
    • Voltage transformer replacement
    • Resistance bloc replacement

  13. BUS AND BUSDUCT
    Bus and Busduct Periodical / Fault Maintenance Tests
    • Insulation Resistance Tests
    • Dielectric Withstanding Tests

    Bus and Busduct Maintenance and Installations
    • Insulators cleaning and controls
    • Generator and transformer side connection torque controls
    • Earthing connectors controls

  14. DC BATTERY AND UPS
    DC Battery and UPS Periodical Maintenance Tests
    • Check of connection cords, jack, busbar, conductivity
    • Capacity, voltage and electrolyte density tests
    • Faulty or low-capacity socket detection
    • Battery capacity and efficiency tests under load

  15. TRANSFORMER OIL TESTS
    Transformer Oil Electrical, Chemical and Phisical Tests
    • Dissipation Factor ( Tand )
    • Breakdown Voltage
    • Water Content
    • Appearance of Colour
    • Neutralisation Value
    • Interfacial Tension
    • Viscosity of Oil
    • Corosive sulfur

    Dissolved Gas Analysis in Transformer Oil
    • Hydrogen
    • Methane
    • Ethane
    • Ethylene
    • Acetylene
    • Propana
    • Propylene
    • Carbon monoxide
    • Carbon diokside
    • Total dissolved gas
    • Total combustion gas

  16. PROTECTION AND CONTROL RELAY SYSTEMS
    1. OVER CURRENT / EARTH FAULT PROTECTOIN RELAYS
    2. DIFERANTIAL RELAYS
    3. DISTANCE PROTECTION RELAYS
    4. GNERATOR PROTECTIONS RELAYS
    5. BUS BAR PROTECTION REALYS
    6. LOW / OVER VALTAGE PROTECTIONS RELAYS
    • Protection and Control Relays setting and Tests
    • Protectin and control relays systems settings and tests
    • Transducer tests
    • Measurement instruments tests

  17. EARTHING TESTS
    • Facility Soil Specific Resistance Measurements (Wenner and Selvaz)
    • Facility step and contact voltage measurements (Wenner and Selvam)
    • Transformer operation grounding resistance
    • Transformer protection earth measurement

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