REXON Transformer Turns Ratio Tester, Electrical Test Instrument, Reliable Accuracy for Power Transformer Maintenance
Portable and reliable transformer analyzer
Prevents costly transformer failures
Digital precision for utility applications
According to the IEC and the relevant national standards, in power transformer production, the user acceptance and maintenance test process, the transformer ratio test is to do projects, it can effectively monitor the transformer products manufactured and used in the process of quality, prevent the transformer interturn short circuit, open circuit, connection error, voltage regulating switch internal fault or contact fault. For my company to develop and produce the Transformer Ratio Tester HYG-II on the original basis according to the user's requirements of the site use, make the operation more convenient, complete functions, stable and reliable data, and test speed. Adapting to various small, medium and large transformer ratio tests is needed.
REXON HYG-II is a high-precision digital transformer turns ratio (TTR) tester designed for accurate measurement of voltage ratio, turns ratio, and phase displacement of transformer windings. Compact and reliable, it is an indispensable diagnostic instrument for power utilities, transformer manufacturers, and maintenance teams.
REXON HYG-II supports automated measurement, digital display, and data storage functions, making it ideal for field testing, commissioning, and laboratory analysis. Its accuracy and ease of use make it a reliable tool for utilities, OEMs, and testing service providers.
Characteristics
1. The English and Chinese menu prompts, the operation is simple and convenient.
2. Ratio measurement range is large: 1-10000
3. Function is powerful: not only can be used for single-phase measurement, but it can realise three-phase winding automatic test, connected groups can be chosen arbitrarily, a complete measurement of AB, BC, CA three-phase variable ratio, error, and line group parameters.
4. Measuring speed. (Finish the three-phase simultaneous measuring in only needs several seconds )
5. After measuring is completed, automatically cut off the power.
6. Sets data, measurement results are automatically saved, can view previous data.
7. Measuring transformer loaded, only the input ratio.
8. Easy to carry, suitable for field operations.
Technical Parameters
1. Ratio measurement range: 1-10000.
2. Precision: 1-1000 0.2%±3, 1000-10000 0.5%±3.
3. Power: 220V ± 10%, 50HZ.
4. Group: 1-12
5. Working temperature: 0-40 ºC.
6. Relative humidity: less than 80% noncondensation.
7. Dimensions: 400 x 290 x 170mm
Main Functions & Application Fileds:
Oil-immersed transformers Dry-type transformers Autotransformers
Phase-shifting transformers Voltage transformers (VTs) and instrument transformers
1. Power System Operation and Maintenance
Applications: Substation power transformers, voltage transformers (VTs), and instrument transformers
Purpose: Routine testing to detect abnormalities in winding ratio due to shorted turns or connection faults
Benefits: Enhances grid reliability and prevents unplanned outages
2. Transformer Manufacturing and Factory Testing
Applications: Distribution transformers, power transformers, special-purpose transformers
Purpose: Verify that the actual turns ratio matches the design specifications during production
Benefits: Ensures product quality and compliance with IEC or ANSI standards
3. Commissioning and Installation Verification
Applications: New substations, transformer replacement projects, or system upgrades
Purpose: Confirm correct tap position, winding polarity, and phase group before energizing
Benefits: Prevents costly errors due to incorrect wiring or connection mistakes
4. High-Voltage Testing and Type Testing
Applications: Testing labs, utilities, or inspection authorities
Purpose: Used in conjunction with insulation resistance, winding resistance, and other tests to assess transformer performance
Benefits: Part of routine type tests, FAT (Factory Acceptance Test), and SAT (Site Acceptance Test)
5. Fault Diagnosis and Preventive Maintenance
Applications: Transformers suspected of damage after faults, overloads, or aging
Purpose: Detect shorted or open windings, tap changer malfunctions, or phase mismatches
Benefits: Aids in root cause analysis and ensures safe continued operation
Packing List
| No. |
Name |
Unit |
Quantity |
| 1 |
Main unit |
Set |
1 |
| 2 |
Power supply wire |
Set |
1 |
| 3 |
Testing wires |
Set |
1 |
| 4 |
Operation Manual |
Set |
1 |
Other Testers We Supply
Oil Acid Tester Oil Moisture Tester Dew Point Tester
Portable Oil Particle Counter Automatic BDV Tester SF6 Analyser
-We will help to arrange the transport and shipping for the machine to customer.
-We offer full set documents for customs clearance at customer's destination port.
-We will offer lifetime technical support for our equipment, free technical upgrade, free or chargeable spare parts supply, etc.
-We offer online service for customers 24 hours everyday. If you have any question while using our machine, you can contact us by online chat software, or by email, phone etc, we will get back to you very soon within 4 hours.
-We will also offer operation training for free in our factory and offer door-to-door service to send our engineer to your place for the machine's installation service and operation training if you need.
-Installation, Operation and Maintenance details will be in the operation manual booklet and videos which will be sent to you with machine.
-Rexon's guarantee time is two years for each of our equipment.
Chongqing Rexon Oil Purification Co., Ltd is a leading oil purifier manufacturer in China, which engages in developing, producing, selling a series of oil purifier such as transformer oil purifier, turbine oil purifier, engine oil purifier, lube oil purifier, cooking oil purifier and so on. We practiced in this line near 20 years, so we have a strong technology and gain rich experience. Our products have been exported to many countries, and get a high reputation.
Since the foundation of our company, under the duty of devoting our efforts to develop the advanced purifier for saving energy sources, adopting the advanced management like SUBI, and with the reliance on the strong technical force, advanced equipment of production, perfect quality check method, fast and outstanding after-sales service, our company has developed into a national big base specialized in producing oil purifier. Our products are outstanding because of its excellence in quality, stability in service, and diversity of products.
Rexon owns a number of national-class oil purifier experts and experienced engineers. Encouraged by the company's modern management mechanism, we have developed six big series, including hundreds of models oil purifier equipment which have the independent property right and advanced filter technology. Those equipment can be applied to many fields, such as the electric power, petroleum chemical, metallurgical industry, mine, aviation, shipping and railway, and so on.
We adhere to the tenet of mutual-benefit and win-win. With the sincere and pragmatic work attitude, we would like open up new Sci&Tech oil purify era with our customer.
REXON Onsite Projects
RECOMMAND PRODUCTS
For Insulating Oil (transformer oil, mutual inductor oil, valve oil and so on)
-Highly Effective Vacuum Oil Purifier
-Computer-Tested Highly Effective Vacuum Oil Purifier (ZY with oil tester)
-Mobile Type Multi-function Transformer Oil Treatment Machine
-Automatic Double-Stage Highly Effective Vacuum Transformer Oil Purifier
-Ultra-High Voltage Oil Regeneration Treatment
For Lubricant Oil (hydraulic oil, turbine oil, gear oil, diesel, heating oil and so on)
-Multi-function Lubricating Oil Purifier
-Highly Effective Vacuum Turbine Oil Purifier
-Hydraulic Regeneration Oil Purifier
-Coalescence-Separation Diesel Oil /Light Oil Purifier
-Centrifugal Vacuum Oil Purifier
-Phosphate Ester Fire-Resistant Oil Purifier
For more information about any model of our oil purifier's specs, please leave us your Email, Tel, Mobile No. etc. then we can feedback to you immediately. Or you can contact us directly from our website. Don't hesitate to send us enquiry now! Welcome to visit us!
Audited Supplier 
){kind=link}