The transformer comprehensive test bench is a specialized testing equipment used to measure and test various electrical properties of power transformers. The following is a detailed introduction to the transformer comprehensive test bench:
1. Overview
Transformer comprehensive test bench, also known as transformer comprehensive test bench, transformer comprehensive characteristic test bench, etc., is a specialized testing equipment that integrates no-load short circuit, transformation ratio, direct resistance, AC withstand voltage, and control. It can measure parameters such as transformer no-load current, no-load loss, short-circuit loss, impedance, etc. It can also measure the transformer's DC resistance, transformation ratio, transformation ratio error, wiring group, etc. At the same time, the device can also perform waveform distortion correction, test wire resistance correction, transformer error correction, and other operations.
2. Main features
① Comprehensive function: The transformer comprehensive test bench can complete various electrical performance tests, including no-load characteristics, load characteristics, transformation ratio tests, DC resistance tests, insulation resistance tests, power frequency withstand voltage tests, etc.
② High precision: The equipment adopts advanced testing technology and high-precision sensors to ensure the accuracy and reliability of test results.
③ High degree of automation: The entire experimental process is automatically completed, with outstanding advantages of high efficiency and high precision. Simultaneously displaying 18 parameters including three-phase voltage and current, replacing pointer instruments with digital instruments, all test data is displayed in real-time (locked) on the screen, avoiding errors caused by factors such as parallax, conversion, and calculation during the test process.
④ Convenient data processing: The data processing adopts automatic storage and microcomputer printing methods, with beautiful and standardized data tables, neat and clear handwriting. All experimental data is filled in real-time into the corresponding tables, avoiding the process of manual copying and recording, ensuring the authenticity and reliability of the data. Users can also set their own printing formats as needed.
⑤ High safety: The equipment has functions such as overload alarm indication, line misconnection protection, overvoltage, overcurrent protection, etc., ensuring the safety of the testing process.
3. System configuration
The transformer comprehensive test bench mainly consists of the following parts:
① Computer and data processing software system: used to control the experimental process, collect and analyze data.
② Data collection system for each testing unit: including various sensors and measuring instruments, used to measure various electrical parameters of transformers.
③ Strong current control and instrument monitoring integrated system: used to control the switching, voltage and current parameters of the test power supply, and monitor various instrument readings during the test process.
4. Technical indicators
The technical specifications of the transformer comprehensive test bench usually include the following aspects:
① Output current: Depending on the device model, the output current range may vary, generally 5A, 10A, etc.
② Measurement range: covering the measurement range of various electrical parameters of transformers, such as DC resistance, transformation ratio, insulation resistance, etc.
③ Resolution: Used to indicate the level of precision of measurement results, usually at the micro European level.
④ Test accuracy: Refers to the accuracy of measurement results, generally at level 0.2 or higher.
⑤ Working temperature and humidity: The temperature and humidity range within which the equipment operates normally.
⑥ Working power supply: The voltage and frequency required for the working power supply of the equipment.
5. Safety measures and precautions
① Read the manual before use: Before using the transformer comprehensive test bench, it is necessary to carefully read the equipment manual to understand the functions, operating methods, and safety precautions of the equipment.
② Having electrical knowledge: The operator of the equipment should have general electrical knowledge to ensure correct and safe operation of the equipment.
③ Avoid harsh environments: The equipment should be used in harsh environments such as rain, corrosive gases, excessive dust, high temperatures, and direct sunlight.
④ Prevent severe vibration: The equipment should avoid severe vibration during use to avoid affecting measurement accuracy and equipment lifespan.
⑤ Pay attention to discharge operation: After the test is completed, be sure to wait for the discharge alarm sound to stop before turning off the power and removing the test line. For no-load tap changers, it is necessary to wait for the discharge indicator alarm sound to stop before switching gears.
⑥ Do not move the test line: During the testing process, do not move the test clamp and power supply line to ensure the accuracy of the test results.
6. Application scenarios
The transformer comprehensive test bench is suitable for electrical performance testing of various specifications of power transformers and is an ideal product for the upgrading of the power sector. At the same time, it can also be used for transformer related research and experiments in scientific research institutions, university laboratories, and other occasions.
In summary, the transformer comprehensive test bench is a comprehensive, high-precision, and highly automated testing equipment that can complete various electrical performance tests, providing strong support for the quality inspection and performance evaluation of power transformers.
The ZC-200 Transformer Comprehensive Testing System is mainly used to test the no-load characteristics, load characteristics, winding resistance, transformation ratio group, power frequency withstand voltage, induction withstand voltage, and insulation resistance of power transformers and distribution transformers. The system adopts a modular design, and each testing unit can work independently and perform automatic testing under computer control. The test data for each project can be directly obtained through a computer and can form a test report. This system avoids random errors caused by manual observation and data recording, greatly improving experimental efficiency.
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
