TEKON ENERGY Co - A DOBLE Authorised Provider,Turkey
DOBLE ENGINEERING CO. BOSTON MA
Transformer Testing
As a transformer ages, its probable failure rate increases. Studies
confirm that the average service life at failure for large power
transformers is less than 15 years – but with a proper condition
assessment and maintenance program, power transformers can continue to
provide reliable service far beyond this average. In fact, the use of
aggressive asset management strategies is changing the way we view the
expected lifespan of large electrical power apparatus, especially
transformers. Some of our clients have large power transformers on
their systems that have been in service for over 70 years!
TEKON ENERGY Service condition assessments can help identify the
present condition of your transformer and its components, estimating
remaining life, make life extension suggestions and help with economic
decisions for future repair or replacement actions.
DOBLE Engineering has developed a proprietary method for estimating the
remaining service life of a transformer. This method builds upon a
comprehensive condition assessment program, and is designed to
systematically identify changes in transformer condition. With DOBLE's
Condition Assessment solution, TEKON ENERJİ can reduce the risk of
transformer failure and extend the life of your valuable capital
assets.
A typical Condition Assessment evaluation includes the following:
- Review of historical test results and operating conditions
- Comparison of recent test results versus the historical results for the unit and similar designs in the DOBLE database
- Review of design and specifications
- Site inspection
- Electrical and mechanical integrity tests of the transformer
- Electrical insulation quality tests for the paper and oil insulation systems
- A full battery of oil diagnostics
- Thermal analysis
We'll get familiar with your system and individual equipment during the
preliminary evaluation phase. We'll work with you to determine which
transformers are the most critical and develop a strategy to evaluate
these units in detail. We'll develop a proposal to meet your overall
goals for condition assessment and maximum utilization of your
equipment.
Transformer Condition Assessment
Internal Component Condition Assessment
Winding, Core and Core Clamp, Oil Distribution Box
- Inspect for Directed/Forced Oil Flow
Bus, Leads and Connections
Flux, Shunts and Flux Shields
Metallic Components
- Inspecting for Grounding Integrity
External Component Condition Assessmnt
Cooling Equipment ( Oil Pumps, Fans, Coolers, Radiators)
Load Tap Changer
- Inspect Internal Components and Gaskets
- Recommend
Components Upgrades such as Oil Filtration System and Auto-Recharging
Dehydrating Breather or LTC replacement (if applicable)
Bushings
- Test, Inspect and recommend Upgrades or Replacements
Control and Protective Devices
- Determine Replacement Criteria
- Inspect Wiring for Deterioration
- Inspect
and Calibrate Gauges and Protective Devices, including Temperature
Gauges, Pressure/Vacuum Gauges, Sudden Pressure Relay, Pressure Relief
device, etc.
- The Surge Arresters
Gaskets
Tank Inspection
- Identify repairing Needs Based on Paint Condition/Integrity, Appereance of Rust and/or Corrosion
- Locate Leaks
- Assess Hardware, Clamps and Fittings
Oil Condition Assessment
- Gauge Physical and Chemical Properties, Moisture Content,
and Perform Gas – in – Oil Analysis to Determine Best Course of Action
– Oil Reconditioning or Oil Reclamation
- Inspect Oil Preservation Systems
- Recommend System Upgrades such as Nitrogen Generator
Paper Insulation Assessment
- Degree of Polymerization
- Moisture and Oxygen Content
- Furan Analysis
- Remaining Life Estimates
Thermo graphic Analysis
- Hot Spot Identification
- Hot Spot Cause Analysis
- Solution Recommendations
Customer Historical Record Review
- Prior Test Results
- Maintenance Records and repairs performed
- Service History; Overloads, Short Circuits and levels, etc
For more information, contact:
TEKON ENERGY Co
Cemil Topuzlu Caddesi Uçem Konak Apt 73/1
Caddebostan 34025 Istanbul Turkey
Phone: +90 (216) 411 6741 ; +90 (216) 411 6780
Fax: 90 (216)411 6798
www.tekonenerji.com
Email:
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