
Metravi ATK Acidity Testing Kit
Metravi ATK Acidity Testing Kit is a portable transformer oil testing kit used to check the acidity level of insulating oil. It helps maintenance teams evaluate oil condition using ethyl alcohol, sodium carbonate solution, universal indicator, test tubes, droppers and a calibrated colour chart. The catalogue explains that acidity is expressed as a neutralisation number and the colour change indicates the pH level and acidity range of the oil.
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A. Product Overview
The Metravi ATK Acidity Testing Kit is designed for checking the acidity content in transformer oil and insulating oil. Transformer oil can become acidic over time due to oxidation, contamination and ageing. Higher acidity can reduce oil quality and may affect the insulation performance and life of the transformer.
This kit provides a simple field testing method where the oil sample is mixed with rectified spirit, sodium carbonate solution and universal indicator. The final colour is compared with the supplied calibrated colour chart to estimate the neutralisation number of the oil.
The kit includes:
Ethyl alcohol, sodium carbonate solution, universal indicator, clear glass test tubes, graduated droppers, calibrated colour chart and instruction booklet.
B. Working Principle
The working principle of the Metravi ATK Acidity Testing Kit is based on the neutralisation number of transformer oil. Neutralisation number means the amount of potassium hydroxide required to neutralise the acids present in one gram of oil.
When transformer oil oxidises, acidic compounds are formed. These acidic compounds are soluble in alcohol. In the test process, a fixed quantity of insulating oil is mixed with a fixed quantity of rectified spirit and sodium carbonate solution. After this, universal indicator is added.
The mixture develops a colour based on the pH value. This colour is then compared with the calibrated colour chart supplied in the kit. Oil with lower acidity shows colour transitions from Prussian blue to yellow, while oil with higher acidity shows colour changes from yellow to vermillion.
C. Why It Is Used
The Metravi ATK Acidity Testing Kit is used to check the health and condition of transformer oil. Transformer oil works as both an insulating medium and a cooling medium. If the oil becomes acidic, it can affect insulation strength, increase sludge formation and reduce transformer life.
It is used for:
Checking acidity level in transformer oil
Monitoring transformer oil ageing
Preventive maintenance of electrical transformers
Identifying oil deterioration before failure
Supporting oil filtration and replacement decisions
Reducing transformer maintenance risk
Improving reliability of electrical distribution systems
On-site testing of insulating oil condition
This kit is useful because it provides a quick, portable and chemical-based testing method without requiring a large laboratory setup.
D. Suitable Buyers
The Metravi ATK Acidity Testing Kit is suitable for:
Electrical maintenance teams
Transformer service companies
Power distribution companies
Substation maintenance departments
Industrial plants with transformers
Electrical contractors
Testing and calibration laboratories
Oil filtration service providers
Utility maintenance engineers
Panel builders and electrical system integrators
Factories using distribution transformers
Educational and technical training institutes
It is especially useful for buyers who regularly maintain transformers and need a basic field method to check oil acidity.
FAQ
1. What is the use of Metravi ATK Acidity Testing Kit?
The Metravi ATK Acidity Testing Kit is used to test the acidity content of transformer oil and insulating oil. It helps identify whether the oil is in good condition or has started deteriorating due to oxidation and ageing.
2. What does acidity in transformer oil indicate?
Acidity in transformer oil indicates oil deterioration. High acidity can lead to sludge formation, reduced insulation performance and lower transformer reliability.
3. How does this acidity testing kit work?
The oil sample is mixed with rectified spirit, sodium carbonate solution and universal indicator. The developed colour is compared with the supplied calibrated colour chart to estimate the acidity level.
4. What is neutralisation number in transformer oil testing?
Neutralisation number is the amount of potassium hydroxide required to neutralise the acids present in one gram of oil. It is used as a measure of total acidity in transformer oil.
5. What items are included in the Metravi ATK kit?
The kit includes ethyl alcohol, sodium carbonate solution, universal indicator, four clear glass test tubes, three graduated droppers, a calibrated colour chart and an instruction booklet.
6. Can this kit be used on-site?
Yes, the Metravi ATK Acidity Testing Kit is portable and suitable for field testing, transformer maintenance visits, substations and industrial electrical maintenance work.
7. Who should buy this acidity testing kit?
This kit is suitable for electrical maintenance engineers, transformer service providers, substations, power distribution companies, testing laboratories and industries using oil-filled transformers.
8. Why is regular transformer oil acidity testing important?
Regular testing helps detect oil ageing early, prevents transformer insulation problems and supports timely oil filtration or replacement decisions.
9. Is this kit suitable for transformer preventive maintenance?
Yes, it is suitable for preventive maintenance because it helps check transformer oil condition before serious faults or failures occur.
10. Does the kit require electrical power to operate?
No, the kit works through a chemical testing method and colour comparison. It does not require electrical power for basic testing.

