Three-phase Transformer turns Ratio meter

The Transformer Turns Ratio Meter is an essential tool designed specifically for performing the Transformer turns ratio test, also known as the TTR test. This test plays a crucial role in confirming whether a transformer maintains the correct ratio of primary turns to secondary turns, ultimately ensuring its optimal performance. By harnessing the power of the Transformer Turns Ratio Meter (TTR), you can efficiently identify a wide range of faults and issues within transformers. These include problems such as tap changer performance, shorted turns, open windings, incorrect winding connections, and more.

Key Features of the Transformer Turns Ratio Meter:
1. Fully Automatic Functionality: The TTR is equipped with advanced fully automatic functionality. This feature streamlines the testing process, making it incredibly user-friendly and efficient.
2. Capability to Test Single Phase and Three Phase Transformers: The versatility of this meter allows it to conduct tests on both single phase and three phase transformers. Its broad range of applications ensures compatibility with various transformer types.
3. Automatic Detection of Transformer Vector Group: With the TTR’s automatic detection feature for the transformer vector group, manual input becomes unnecessary. This not only saves time but also guarantees accurate and reliable results.
4. Automatic Calculation of Transformer Ratio of the Group: By leveraging its advanced algorithms, the TTR performs automatic calculations of the transformer ratio of the group. This intelligent functionality significantly reduces testing time and effort.
5. Automatic Calculation of Ratio and Phase Angle Error: The TTR goes beyond merely measuring the turns ratio. It also provides automatic calculations of the ratio and phase angle error, facilitating precise analysis and assessment of transformer performance.
6. Isolated Test Voltage: Once the test is complete, the TTR automatically isolates the test voltage. This critical safety feature ensures the protection of both the meter and the transformer under test, mitigating potential hazards.
7. Short Circuit and Inter-Turn Short Protection: Equipped with built-in short circuit protection and inter-turn short protection mechanisms, the TTR offers enhanced safety measures. These features safeguard the meter and the transformer being tested, providing peace of mind during the testing process.

Applications of the Transformer Turns Ratio Meter:
1. Transformer Manufacturers and Repairers: Manufacturers and repairers of distribution transformers, power transformers, CT PT, and other transformer types benefit greatly from the TTR. Its invaluable capabilities contribute to efficient and reliable testing procedures.
2. Electricity Distribution and Transmission Companies: Enhance your in-house testing capabilities at a micro-level with the TTR, ensuring the overall reliability and efficiency of your transformer assets.
3. Electrical Test and Calibration Laboratories, Third-Party Inspection Agencies: The TTR proves to be an ideal tool for these institutions, enabling accurate and comprehensive testing of transformers. This ensures high-quality standards and reliable performance.
4. Engineering Colleges: Utilize the TTR as an educational resource to familiarize students with turns ratio and its measuring principles. This prepares them for real-world applications in the field of electrical engineering.
5. Research Institutes: Conduct in-depth research on transformer fundamentals using the TTR. Benefit from its precise measurements and advanced features, which facilitate advanced research work.
In addition to measuring the no-load turns ratio of transformers, indicating the ratio between the high voltage winding and the low voltage winding, the TTR also displays the percentage deviation and excitation current. This comprehensive information allows for a thorough evaluation of transformer performance and aids in making informed decisions.

Investing in the Transformer Turns Ratio Meter (TTR) guarantees access to a reliable and efficient tool for transformer testing. By utilizing this advanced meter, you ensure the optimal operation of your transformers, identify faults accurately, and maintain the highest standards of performance and safety.

Phase: Single/Three Phase
Connection Type: D-Y/Y-y/D-d/Y-d
Ratio Range: 1.0 – 5000.0
Operating Temperature 5°C To 50°C
Operating Humidity 20% to 80% RH (no Condensation)
Storage Temperature 0°C To 55°C
Power Consumption 30 VA max
Resolution: 0.0001
Test Voltage: HV 25V AC/ LV 10V AC
Excitation Current Range 200 mA. Resolution 0.1 mA (Other Range Available on Request)
Power Supply AC 230V ± 10% @ 5O Hz
Accuracy 0.1% +/-2 digits (1-500 range)
Size of Instrument: 40cm x 24cm x 25cm
Weight of Instrument 8.00 kg Approx.
Warranty 12 Months for Manufacturing Defects only at Ex Works, No Warranty of any Accessories

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