Product introduction
The Transformer Turns Ratio Meter is one of the indispensable and important testing equipment in the power system. It calculates the ratio by measuring the winding voltage and current of the transformer, and determines its wiring group. It has the characteristics of high-precision measurement, intelligent operation, and wide applicability, providing important technical support for industries such as power maintenance and power construction.
Product Parameters
| Transformation ratio testing range | 0.8～10000 |
| Group testing range | 0～11 |
| Ransformation ratio testing accuracy | class 0.1 (HV:0.8～200) |
| class 0.2 (HV:200～1000) | |
| class 0.5 (HV:1000～10000) | |
| class 0.2 (LV:0.8～100) | |
| Transformation ratio resolution | 0.0001 |
| Power input | 220V±10%, 50HZ±1Hz |
| Service temperature | -20℃~40℃ |
| Relative humidity | ≤85%, no condensation |
| Overall size of host machine | 325mm×280mm×190mm |
| Weight of host machine | 6.9kg |
Main Features of Transformer Turns Ratio Meter
1. High precision measurement: Using precision voltage sampling technology, the measurement accuracy of the transformation ratio can reach 0.1 level, and it can sensitively detect small changes in the number of turns
2. Quick testing: Automatically complete three-phase ratio testing, the entire process only takes a few tens of seconds, greatly improving detection efficiency
3. Intelligent direction determination: Automatically identify the transformer wiring group and visually display the group code
4. Safe and reliable: equipped with comprehensive overcurrent and overvoltage protection functions
5. Data management: capable of storing thousands of sets of test data, supporting data query, transmission, and report generation
Main application areas of Transformer Turns Ratio Meter
1. Quality control in the manufacturing process of transformers
Factory inspection: Newly produced transformers must undergo a transformation ratio test before leaving the factory to ensure that the product quality meets the standards.
Type test: used to verify the accuracy of transformer design parameters.
2. Operation and maintenance of transformers
Regular inspection: Transformers in the power system need to undergo regular ratio testing to monitor their operating status and detect potential faults early.
Fault diagnosis: When there is an abnormality in the transformer, the ratio test can help determine the type of fault, such as inter turn short circuit, winding disconnection, etc.
Acceptance after maintenance: After the transformer maintenance is completed, a transformation ratio test is required to verify the quality of the maintenance.
3. Transformer acceptance
Acceptance of newly installed transformers: Before putting the newly installed transformers into operation, a transformation ratio test must be conducted to ensure that they meet the design requirements.
Second hand transformer acceptance: When purchasing a second-hand transformer, a transformation ratio test is required to evaluate its technical condition.
Frequently Asked Questions
Q: What specifically does the "transformation ratio" of the transformer turns ratio meter refer to? Answer: Transformation ratio refers to the ratio of the voltage (or current) of the primary winding of a transformer to the voltage (or current) of the secondary winding.
Q: What issues should be noted when measuring transformer ratio? Answer: Attention should be paid to temperature, wiring method, stability of testing power supply, and standardized operation of operators.
Q: What types of ratio testing instruments are available on the market? Answer: Common types on the market include automatic transformer ratio group testers, single-phase transformer turns ratio meters, and three-phase transformer turns ratio meters.
Q: What impact will inaccurate transformer ratio have on the power grid? Answer: Inaccurate transformation ratio may lead to a decrease in power transmission efficiency, and even cause serious problems such as equipment overload and damage.
Q: How to improve the accuracy of transformer ratio measurement? Answer: Choose a high-precision automatic tester, strictly follow the operating procedures for measurement, and pay attention to the control of environmental factors.
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