Product introduction
Transformer turns ratio tester is a special test equipment used to measure the ratio of turns (ratio) of the high-voltage and low-voltage windings of transformers. Winding damage, inter-turn short circuit or wiring error may cause ratio deviation and affect the normal operation of the transformer. Measuring the ratio can detect early faults and prevent sudden power accidents.
Product features
Fast Test Speed
The transformer turns ratio tester uses fast Fourier transform technology, which can quickly extract the frequency response of the transformer winding to accurately calculate the ratio. This allows the tester to complete the test in less than 5 seconds for single-phase transformer testing and 15 seconds for three-phase transformer testing, which is several times faster than the 30 seconds to 1 minute test time of traditional equipment.
Wide Test Range
Common transformer turns ratio testers on the market can usually only test ratios of 1000 or 5000, while our ratio tester has a test range extending from 0.8 to 10000. This means that both low-voltage distribution transformers and ultra-high-voltage transmission transformers can be tested with the same device, greatly improving the practicality and economic benefits of the equipment.
High Resolution
The resolution of the transformer turns ratio tester reaches 0.0001, which means it can detect extremely small ratio differences. In comparison, the resolution of general ratio testers on the market is usually between 0.001 and 0.01. In the early stage of a short circuit between turns of the winding, the ratio deviation is extremely small, but the high-resolution tester can keenly capture these tiny anomalies and prevent further damage to the equipment.
Technical parameters
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Transformation ratio testing range |
0.8～10000 |
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Group testing range |
1～12 |
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Transformation ratio testing accuracy |
class 0.1 (180V: 0.8～200) |
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class 0.2 (180V: 200～1000) |
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class 0.5 (180V: 1000～10000) |
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class 0.2 (10V: 0.8～100) |
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Transformation ratio resolution |
0.0001 |
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Power input |
220V±10%, 50HZ±1Hz |
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Service temperature |
-20℃~40℃ |
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Relative humidity |
≤85%, no condensation |
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Overall size of host machine |
325mm×278mm×188mm |
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Weight of host machine |
6.9kg |
Advantage of Transformer Turns Ratio Tester
Fully automatic testing: simply connect the wires, and the instrument can automatically perform ratio testing for low, medium, and high gears, and automatically determine polarity.
High precision measurement: Advanced measurement technology is adopted to ensure extremely high measurement accuracy.
Easy to operate: With a fully English interface and clear operation logic, even engineers who are new to it can quickly get started.
Data management: Test results can be directly stored and exported, facilitating subsequent data analysis and archive management.
Production and maintenance scenarios of Transformer turns ratio tester
New installation acceptance: After the transformer is installed, verify whether the winding turns ratio meets the design requirements, and check whether the winding has displacement or short circuit during transportation.
Preventive testing: During regular maintenance, check for inter turn short circuits, open circuits, or poor contacts in the winding (as inter turn short circuits can cause changes in transformer ratio).
After major repair testing: After transformer core maintenance, winding replacement or rewinding, a transformation ratio test must be conducted to verify the repair quality.
Fault diagnosis: When the differential protection of the transformer is activated or an internal fault is suspected, the winding is determined to be damaged through a ratio test.
Frequently Asked Questions
1. What is a transformer turns ratio tester?
Transformer turns ratio tester is an electrical testing equipment used to measure the voltage ratio between the high and low voltage sides of transformers. It can quickly determine whether the transformer ratio meets the nameplate requirements and check whether the transformer winding and tap changer are abnormal.
2. What is the transformer turns ratio tester mainly used for?
Mainly used for transformer factory testing, handover testing, installation and commissioning, preventive testing, and post maintenance ratio inspection, it is also applicable to power transformers, distribution transformers, and other related transformer equipment.
3. What transformers can be tested by a transformer turns ratio tester?
It is usually used for single-phase transformers, three-phase transformers, power transformers, distribution transformers, transformers, and transformers with tap changers. The specific testing scope depends on the equipment model and technical configuration.
4. Is the operation of the transformer turns ratio tester complicated?
Easy to operate. Adopting a menu based operating interface, users can input or select transformer related parameters for automatic testing, suitable for use in substations, laboratories, and on-site maintenance.
5. What services are provided when the transformer turns ratio tester is exported?
Our company can provide technical solutions, product manuals, operation training, factory testing, calibration documents, spare parts supply, remote technical support, and after-sales service, and provide corresponding export documents according to the import and project requirements of different countries.
We are a professional transformer turns ratio tester manufacturers in China.We can provide the best professional transformer turns ratio tester for sales and competitive price. If you are looking for transformer turns ratio tester supplier, we are a good choice.
Contact us to get transformer turns ratio tester price.
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