The selection guide and precautions for dry-type test transformers are crucial for ensuring their performance, safety, and service life. Here are some key selection guidelines and precautions:
1. Selection Guide:
① Determine the usage environment and conditions: Firstly, it is necessary to clarify under what environmental conditions the dry-type test transformer will be used, including ambient temperature, humidity, altitude, pollution level, etc. This will help determine the insulation level, protection level, and cooling method of the transformer.
② Determine voltage and capacity: Determine the required voltage level and capacity based on the test requirements. Ensure that the rated voltage and capacity of the selected transformer meet the test requirements, and consider a certain margin.
③ Selection of insulation level: Choose the appropriate insulation level based on the characteristics of the usage environment and protection requirements. For example, if the transformer is to be used in high-altitude areas or harsh environments, a higher insulation level needs to be selected.
④ Selection of cooling method: Dry type test transformers usually use natural air cooling (AN) or forced air cooling (AF). Select the appropriate cooling method based on the test load and ambient temperature.
⑤ Selection of protection level: Choose the appropriate protection level based on the usage environment and protection requirements. For example, if the transformer is to be installed outdoors or needs to prevent small animals from entering, an IP23 protection level enclosure can be selected.
2. Attention:
① Consider the temperature rise of the transformer: Dry type test transformers will generate a certain temperature rise during operation. When selecting, it is necessary to ensure that the temperature rise of the transformer does not exceed the withstand temperature of its insulation material to ensure the safe operation of the transformer.
② Pay attention to the noise and vibration of transformers: When selecting, it is necessary to pay attention to the noise and vibration levels of transformers. Ensure that the noise and vibration of the selected transformer do not have adverse effects on the testing environment and users.
③ Considering the maintenance and upkeep of transformers: Although dry-type test transformers have lower maintenance costs, regular maintenance and upkeep are still necessary. When selecting, it is necessary to understand the maintenance and upkeep requirements of the selected transformer and develop a corresponding plan.
④ Pay attention to the installation and use of transformers: When installing and using dry-type test transformers, relevant safety regulations and operating procedures must be followed. Ensure that the installation of the transformer is firm, the grounding is reliable, and maintain good ventilation and appropriate temperature during use.
⑤ Consider the cost and cost-effectiveness of transformers: When selecting, it is necessary to comprehensively consider the cost, performance, and cost-effectiveness of transformers. Ensure that the selected transformer has high cost-effectiveness and low lifecycle cost while meeting the testing requirements.
In summary, when selecting dry-type test transformers, it is necessary to comprehensively consider multiple factors such as usage environment, voltage and capacity, insulation level, cooling method, protection level, and pay attention to issues such as temperature rise, noise and vibration, maintenance and upkeep of the transformer. Through reasonable selection and correct use, the performance, safety, and service life of dry-type test transformers can be ensured.
ZC-501C AC/DC 5kVA/50kV AC 70kV DC High Voltage Tester (HIPOT) includes a digital display control box and a HV transformer.The control box take numerical control technology, anti-interference ability, and compared with the previous generation of operating box, with small size, light weight, beautiful appearance and so on. The output voltage range is adjustable continuously from 0 to 200V. The operation is simple, compact and firm structure, reliable operation, convenient maintenance. This new generation control box has the function to give an audible and visual alarm when the control box or the HV transformer are not connected to the ground. It is for the safety of the operational person and the devices itself. And it is easy to set the protection value on the panel for over voltage and over current.
The HV transformer is a Dry Type single-phase transformer. This device is especially suitable for power systems, mining enterprises, scientific and research department to have insulation strength test under power frequency for all kinds of high-voltage electrical instrument, electrical components, insulation materials. It is fundamental in high-voltage test.
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
