Technology Class

In the power system, the maintenance of batteries in substations is an indispensable part. Many batteries in substations need to undergo regular charge and discharge tests to ensure that they are in full-capacity floating charge operation at all times. So, what is the specific role of batteries in substations? ? How should it be maintained?

This piece discusses the critical role and activation methods of substation batteries. It highlights the necessity of regularly activating batteries to maintain their performance and describes the use of battery activators for this purpose. Additionally, it mentions the RD-IBC2612 Individual Battery Intelligent Regenerator, capable of conducting various tests and uploading data for computer analysis.

The battery pack is the emergency power supply of the substation. In special circumstances where the AC incoming power supply disappears such as all substation transformers shut down or AC fault tripping in the station, the battery can ensure the normal operation of the AC and DC systems in the substation, effectively curb the expansion of the scope of the accident, and play a vital role in protecting the entire power supply. It plays an important role in the safe and stable operation of the system.

Explore the nuances of Insulation and Ground Resistance in this comprehensive guide. Understand key differences and dive into the world of Insulation Resistance Testers.

This article centers on the purpose、working principle、measurment and things must do of insulation resistance testing.

Learn key tips for using a high-voltage insulation resistance tester safely and effectively, from choosing test leads to recording and trending insulation results.

DC resistance checks conductor resistance for quality, while insulation resistance tests insulation strength in power systems, both essential for electrical equipment integrity and performance.

This article covers the importance of insulation resistance testing for safety and equipment longevity, including methods, instruments, and safety precautions.

The tan delta test on a transformer, also known as the Dielectric Dissipation or Loss Angle test, is a method used to assess the quality and condition of the transformer's insulation system. This test is crucial for determining the health of the transformer and identifying potential insulation faults or aging issues.

Measurement of capacitance and dielectric loss of circuit-breaker capacitor is a very important task to ensure safe and stable running of circuit-breaker. However, due to serious electric interference to on-site measurement, dielectric losses of more and more 500kV circuit-breaker capacitor exceeded the limit at 10kV test voltage according to the CSG trial standard. To address the above-mentioned problems, the paper proposes that methods of using different frequency power source and boosting test voltage be utilized to measure the capacitance and dielectric loss. Based on the above measuring methods, several common test schemes are put forward and application ranges are also analyzed followed by capacitance and dielectric loss measurement for some 500kV circuit-breaker capacitor at substation. Test results indicate that the dielectric loss of capacitor reduces as the voltage rises; the change in test voltage frequency can effectively shield the interference from on-site electric field.