Service, Maintenance & Repair
Maintenance and Tests of Transformer
Maintenance and Tests of the Circuit Breaker
Maintenance and Tests of the Separator
Maintenance and Tests of Current Transformer
Maintenance and Tests of Voltage Transformer
Maintenance and Tests of the Surge Arrester
Setting and Tests of the Relay
Transformer Oil
Service, Maintenance & Repair
- Fault Maintenance and Tests of HV-MV Current Transformer
- Fault Maintenance and Tests of HV-MV Current Transformer
- Fault Maintenance and Tests of HV-MV Voltage Transformer
- Fault Maintenance and Tests of HV-MV Breaker (Disjointor)
- Sectioner (Separator) Malfunctions and Maintenance of HV-MV
- Maintenance, Repair and Tests fo Transformer Failures
- Self Protection Tests and Maintenance of the Transformer
- Insulating Oil Tests and Trendman Operations of the Transformer.
- Failure and Maintenance of the On-Load Tap Changer of the Transformer (All Brands)
- Maintenance and Repair of Compensation Board
- Periodic Annual Maintenance, Fault Assembly-Disassembly and Test Procedures of All Primary and Secondary Equipment in the Switchyards of HEPP, WPP and GES Power Plants, are carried out by our Experienced, Expert Personnel who have received High Voltage, Occupational Safety and First Aid Trainings with EKAT(Heavy Curent Power Plant) Authorization Certificate ( T.E.İ.A.Ş/ Turkey electricity transmission Co.Inc. – SOMA) for Working Under Loads up to 500 kilovolts.
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Maintenance and Tests of Transformer
- Checking the isolators on the cutter cart for mechanical damage and cleaning their surfaces
- Washing the cutter mechanical parts with solvent chemicals, removing dirt and re-lubricating them with appropriate oil.
- Lubrication of transition contacts with suitable contact lubricant
- Control of electrical components inside the breaker (coil, auxiliary contact etc.)
- Checking the interlocks
- Performing Breaker Tests (On-Off Time Test, Contact Pass Resistance Test, DC Insulation Resistance Test, %PF Test)
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Maintenance and Tests of the Circuit Breaker
- Checking the isolators on the cutter cart for mechanical damage and cleaning their surfacesb) Washing the cutter mechanical parts with solvent chemicals, removing dirt and re-lubricating them with appropriate oil.
- Lubrication of transition contacts with suitable contact lubricant
- Control of electrical components inside the breaker (coil, auxiliary contact etc.)
- Checking the interlocks
- Performing Breaker Tests (On-Off Time Test, Contact Pass Resistance Test, DC Insulation Resistance Test, %PF Test)
- Checking for mechanical damage and cleaning their surfaces
- Cleaning the moving mechanism from dust, checking and cleaning the insulators, adjusting the mechanism
- Conducting Disconnector Tests (Contact Pass Resistance Test, DC Insulation Resistance Test)
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Maintenance and Tests of the Separator
- Checking for mechanical damage and cleaning their surfaces
- Cleaning the moving mechanism from dust, checking and cleaning the insulators, adjusting the mechanism
- Conducting Disconnector Tests (Contact Pass Resistance Test, DC Insulation Resistance Test)
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Maintenance and Tests of Current Transformer
- Checking the tightness of the primary connection with a torque wrench
- Checking the secondary part connections
- Visual inspection of epoxy
- Performing Current Transformer Tests (Ratio Test, Polarity Test, DC Insulation Resistance Test, %PF Test)
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Maintenance and Tests of Voltage Transformer
- Checking the tightness of the primary connection with a torque wrench
- Visual inspection of epoxy
- Testing the Voltage Transformer (Ratio Test, Polarity Test, DC Insulation Resistance Test, %PF Test)
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Maintenance and Tests of the Surge Arrester
- Checking the tightness of the primary connection with a torque wrench
- Visual inspection of epoxy
- Testing the Voltage Transformer (Ratio Test, Polarity Test, DC Insulation Resistance Test, %PF Test)
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Setting and Tests of the Relay
- Concucting the Functional tests of all relays with secondary applications (current, voltage, frequency, resistance, etc.)
- Checking the operating status of all illuminated indicators (Led, relay, notification, etc.)
- Checking the working status of all illuminated indicators (Led, relay, notification, etc.)
- Checking the setting values of the protection relays according to the operating conditions
- Controlling alarm, trip, and breaker trip output
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Transformer Oil
- Chemical and gas analyzes of transformer insulation oil
- Conducting the treatment process of Transformer insulation oil Insulation Oil is used in transformers for both insulation and cooling (dissipating the heat generated in the windings to the atmosphere). It also gives very valuable information about the current state of the transformer. The performance of the oil also affects the performance of the transformer. The tests performed on oils give healthy information about both the quality of the oil and the performance of the transformer and are carried out with the aim of taking the necessary precautions. An ideal transformer oil is expected to have a voltage resistance of 60 kV. Windings in power transformers and current and current-carrying parts must be designed to withstand the rated (nominal) voltage and frequency continuously, and to withstand overvoltage impulses for a certain period of time.
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