The series resonance under Wuhan UHV can help many power workers more conveniently conduct various power tests.

When selecting a series resonant device, multiple factors need to be considered to ensure that the selected equipment can meet practical needs and has good performance and reliability. The following is a clear selection guide that combines relevant numbers and information from the article to summarize:

1、 Clarify requirements and test objects

Voltage level:

Determine the voltage level of the test object, such as 10kV, 35kV, 110kV, etc. Test objects of different voltage levels require series resonant devices of corresponding voltage levels.

Reference number: For example, for a 110kV power transformer or cable, it is necessary to select a series resonant device that can output the corresponding voltage.

Experimental nature:

Understand the specific properties of the test, such as neutral point withstand voltage, full insulation withstand voltage, etc.

The configuration and parameters of the series resonant device may vary for experiments with different properties.

Equipment parameters:

For power cables, it is necessary to know their voltage level, maximum length, and cross-sectional area.

For generators and motors, it is necessary to understand their voltage level, test voltage (maximum withstand voltage), and single phase to ground capacity range.

These parameters will directly affect the selection and configuration of series resonant devices.

2、 Consider device performance and functionality

Operability:

Choose a series resonance device with automation functions, such as being able to automatically find the test resonance point, automatically track and maintain stable voltage, etc.

This will greatly improve the efficiency and accuracy of the experiment.

Insulation performance:

During the withstand voltage test, there may be dangerous operations such as overvoltage, overcurrent, detuning, and flashover. Therefore, the series resonant device must have multiple protection characteristics to ensure the safety of the test.

Portability:

Consider whether the volume of the reactor inside the device is lightweight and easy to carry for use in different testing sites.

3、 Comparing cost-effectiveness and applicability

cost performance:

Compare the prices and performance of series resonant devices of different brands and models, and choose products with high cost-effectiveness.

Note that price is not the only factor to consider, performance and quality are equally important.

Applicable scope:

Consider whether the application range of series resonant devices is extensive, and whether different types of reactors can be selected to meet the requirements of different specimens, achieving the effect of one machine for multiple purposes.

4、 Choose a legitimate brand and consider after-sales service

Legitimate brand:

Choose a legitimate brand of series resonant device to ensure the quality and performance of the equipment.

Legitimate branded equipment usually has more comprehensive after-sales service and technical support.

after-sale service:

Understand the after-sales service policy of the equipment, including repair, maintenance, and technical support.

Choose brands and equipment that can provide timely and professional after-sales service.