Transformer Testing & Oil Filtration Services - Condition Assessment, Insulation Integrity & Life Extension
Overview
CTRV Engineering Sdn. Bhd. provides professional transformer testing, diagnostic evaluation and oil filtration services for LV and MV power transformers up to 33kV. Our services are focused on maintaining insulation integrity, preventing catastrophic failures and extending transformer service life.
Power transformers are critical assets within any electrical distribution system. Insulation degradation, moisture ingress and oil contamination are leading causes of transformer failure.
Through structured testing and on-site oil treatment, we help asset owners maintain reliability and reduce unplanned outages.
We conduct comprehensive testing to assess the electrical and insulation condition of transformers.
Why Transformer Testing & Filtration Is Critical
Many transformer failures occur due to neglected oil condition and undetected insulation deterioration. Routine diagnostic testing combined with oil filtration can significantly reduce failure risk and costly downtime.
CTRV Engineering supports asset owners with structured maintenance programs to ensure transformers remain safe, reliable and compliant throughout their operational life.
Objective:
- Evaluate dielectric strength
- Identify contamination or oxidation
- Determine need for filtration, regeneration or replacement
- On-Site Oil Filtration & Dehydration
- Vacuum oil filtration services to restore oil quality
- Improve insulation performance
Filtration Services Include:
- Removal of moisture and dissolved gases
- Removal of sludge and solid contaminants
- Vacuum dehydration process
- Oil topping-up and level correction
- Pre- and post-filtration oil testing verification
In addition to testing and oil treatment, we provide rectification works including:
- Oil leak repair and gasket replacement
- Bushing inspection and replacement
- Termination tightening and connection rectification
- Post-repair electrical testing and recommissioning
- Reduces risk of internal arcing and failure
- Corrective Repair & Support Services
Benefits of Oil Filtration:
- Restores dielectric strength
- Reduces moisture content in oil and insulation
- Improves cooling performance
- Extends transformer service life
- Reduces risk of internal arcing and failure
- Corrective Repair & Support Services
Purpose of Testing:
- Detect insulation deterioration and moisture ingress
- Identify winding abnormalities and connection issues
- Verify electrical integrity before energisation or after maintenance
- Support preventive maintenance planning
- Transformer Oil Testing & Analysis
- Transformer oil plays a critical role in insulation and cooling. Oil condition directly affects transformer reliability.
Services Include:
- Insulation Resistance (IR) and Polarisation Index testing
- Transformer Turns Ratio (TTR) verification
- Winding resistance measurement
- Tan Delta testing for transformers and bushings to evaluate dielectric condition
- Contact resistance testing of terminations
- Thermographic inspection of bushings and connections
- Verification of protection devices such as Buchholz relay and temperature sensors