When selecting a transformer winding deformation tester, comprehensive consideration should be given to core dimensions such as testing method, accuracy, frequency range, number of channels, intelligent functions, anti-interference ability, brand reputation, and after-sales service. The following are specific recommendations:
1. Clarify Testing Method Requirements
Transformer winding deformation testers mainly use the sweep frequency method (frequency response analysis method, FRA) or the impedance method for testing. The sweep frequency method detects the amplitude-frequency response characteristics of the winding at different frequencies to determine whether the winding has deformed. It features fast measurement speed and high accuracy, and is suitable for most scenarios. The impedance method evaluates the deformation by measuring the impedance change of the winding, which may be more advantageous in certain specific scenarios. Users should choose the appropriate testing method based on actual needs.
2. Focus on Testing Accuracy and Frequency Range
① Testing Accuracy: Testing accuracy directly affects the accuracy of the judgment results. Generally, the higher the testing accuracy, the stronger the equipment's ability to detect subtle winding deformations. Users should choose equipment with sufficient testing accuracy according to actual needs, usually requiring amplitude measurement accuracy better than 0.1dB and scanning frequency accuracy less than 0.01%.
② Frequency Range: The frequency range determines the types of winding deformation that the equipment can detect. A wide frequency range (such as 1kHz-2MHz) can cover more frequency bands and provide more comprehensive analysis data. Users should choose the appropriate frequency range based on the transformer type and testing requirements.
3. Consider the Number of Channels and Intelligent Functions
① Number of Channels: The number of channels determines the number of input and output signals that the equipment can measure simultaneously. Multi-channel equipment can improve testing efficiency and reduce testing time. Users should choose the appropriate number of channels according to actual needs.
② Intelligent Functions: Intelligent functions such as automatic range adjustment, automatic sampling frequency adjustment, and expert diagnostic systems can simplify the testing process and improve testing efficiency. Users should prioritize equipment with these functions to reduce operational difficulty and improve testing accuracy.
4. Evaluate Anti-interference Ability and Portability
① Anti-interference Ability: Transformer winding deformation testers are often used in substations and other places with complex electromagnetic environments, so anti-interference ability is crucial. Users should choose equipment with anti-interference designs such as multi-stage filtering circuits and metal shielding casings to ensure stable operation in complex electromagnetic environments. ② Portability: For scenarios requiring frequent movement or on-site testing, the portability of the equipment is also an important consideration. Users should choose devices that are small, lightweight, and easy to carry to reduce labor intensity and improve testing efficiency.
5. Consider Brand Reputation and After-Sales Service
Brand Reputation: Choosing equipment from well-known brands and manufacturers with a good reputation ensures the quality and performance of the equipment.
After-Sales Service: Comprehensive after-sales service ensures timely technical support and maintenance during the use of the equipment. Users should choose manufacturers that provide after-sales services such as online guidance, firmware upgrades, and nationwide service response to reduce operating costs and extend the equipment's lifespan.
The ZC-206 transformer winding deformation tester quantifies the variation of the winding parameters in different frequency domains, determines the degree of deformation of the winding according to the trend of variation, range, range and frequency response, and then judges whether the transformer is seriously damaged or needs according to the test result. Overhaul. The device is compact and easy to operate.
Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase. Service hotline: 0086-27-81778799, to learn more, visit the official website: www.kvtester.com
