Sustained Low-Frequency Test
The sustained low-frequency test is a high voltage test that performed on high power electrical equipment like power transformers, transmission lines, cables, circuit breakers, etc. This test is used to determine the dielectric strength of their insulating material when they are operated under low-frequency voltages for a long period of time and at power frequencies such as 50 Hz or 60 Hz, depending on the region.
The sustained low-frequency test helps to ensure the safety and reliability of electrical equipment under normal operation conditions. In other words, this test provides the information about the capability of insulation of material used in the equipment to handle low-frequency voltages without breaking down.
Therefore, the following are the main objectives of the sustained low-frequency test:
- To determine the insulation capability of materials under prolonged application of low-frequency voltages.
- To evaluate the reliability of the material under normal operating frequencies.
- To verify that the insulating material fulfills the requirements of industry standards.
- To determine the strength and probability of failure of insulation that may cause electrical hazards.
High Voltage Testing
In this article, we will learn about High Voltage Testing, its types, and purpose. In electrical engineering, testing is a procedure for evaluating the condition or operational health of electrical equipment, such as motors, generators, transformers, insulators, etc. Electrical testing can be performed at different voltage levels, but two major classifications are low-voltage testing and high-voltage testing. This article will focus on explaining high-voltage testing in electrical engineering. So, let’s get started with the basic definition of high-voltage testing.
Table of Content
- High Voltage Testing
- Purpose
- Types
- Conclusion
- FAQs