product mix

The iron core of the meltblown electrostatic device is a single-phase core type, made of high-quality cold-rolled oriented silicon steel sheets stacked together, and the fastening method uses steel as a clamp. The high-voltage coil is a cylindrical multi-layer tower, made of high-quality polyester enameled wire and high voltage insulation material wound around it. The low-voltage coil is located outside, while the instrument coil is an independent winding, typically at 100V. The shell is octagonal, and test transformers above 10KVA are equipped with movable iron wheels. It has the characteristics of light weight, small size, easy mobility, and superior performance.

　　product overview

High voltage test transformers are basic testing equipment used by power plants, power supply bureaus, and research institutions for conducting AC withstand voltage tests. They have passed the standards of the National Quality Supervision Administration and are used to conduct insulation strength tests on various electrical products, electrical components, insulation materials, etc. under specified voltages, assess the insulation level of the products, discover insulation defects of the tested products, and measure the ability to withstand overvoltage.

　　Product principle

For single-phase transformers, the connection group is labeled as II. The working process of a single test transformer is to connect an AC 220V voltage (380V for 10KVA and above) to the power control box (unit), and adjust the voltage from 0 to 200V (0 to 400V for 10KVA and above) to the primary winding of the test transformer through a self coupling voltage regulator (attached to the regulator for 50KVA and above) inside the power control box (unit). According to the principle of electromagnetic induction, the high voltage required for the test can be obtained in the high voltage winding of the test transformer.

　　Product features:

The readings of voltage, current, time, status information, and prompt information are clear and intuitive;

● Full Chinese interface, simple and clear operation, suitable for various application scenarios;

● Light touch button operation, all functions can be set through buttons, improving the safety and reliability of the product;

The fully digital calibration method eliminates the outdated potentiometer adjustment, making it extremely convenient for on-site use and easy to control accuracy (this function comes with password protection);

● Press the button to directly set the transformation ratio of the test transformer (this function is password protected). When connecting testers of different voltage levels, it can be flexibly applied, truly achieving a control box that can be matched with multiple transformers;

Product parameters:

Input voltage: AC200V for 10kVA and below, AC400V for 10kVA and above

◆ No load loss:< 10%

◆ Short circuit impedance:< 10%

◆ Ratio error:< 1%

Instrument voltage: 100V

◆ Dielectric strength of insulating oil: 2.5mm,> 50kV

Precautions for using melt blown fabric electrostatic devices:

1. Most products are high-voltage testing equipment, which requires professional high-voltage testing personnel to use. Before use, carefully read the user manual and undergo repeated operation training.

2. There should be no less than 2 operators. Strictly follow the safety operation regulations of our unit regarding high-voltage testing when using it.

3. In order to ensure the safety and correctness of the test, in addition to being familiar with the product manual, it is also necessary to strictly follow the relevant national standards and regulations for the test operation.

4. Each connecting wire must not be connected incorrectly, especially the grounding wire must not be connected incorrectly. Otherwise, it may cause damage to the testing device.

5. When using this device, it outputs high or ultra-high voltage and must be reliably grounded. Pay attention to the safe distance during operation.