Precautions for using microcomputer relay protection tester1. Microcomputer relay protection tester This instrument can only be used to test microcomputer relay protection devices and cannot be used to test other equipment.2. To prevent the machine body of the microcomputer relay protection tester from inducing static electricity during operation, the main…

The operating methods of partial discharge testers may vary depending on the specific equipment. The following are the general operating steps for partial discharge testers:1. Preparation workPlace the partial discharge tester on a stable platform and connect it to the power supply and the required testing equipment to ensure safe…

Electric power workers often come into contact with circuit resistance testers in their daily work. Circuit resistance testers are mainly used for high-precision measurement of high and low voltage switch contact (circuit) resistance, cable line DC resistance, and other occasions that require high current and micro resistance measurement. Due to…

The transformer comprehensive characteristic test bench is suitable for factory testing and assessment of the main electrical performance of power transformers. It is easy to operate, safe to use, and the main project of factory testing. Next, let's talk about the characteristics of the transformer comprehensive characteristics testing platform.Using a…

What are the measures to reduce partial discharge in transformers?1. Dust controlForeign objects and dust are very important factors in causing partial discharge. The test results indicate that the diameter is ф one point five μ Under the action of an electric field, metal particles of m can generate discharges…

The AC withstand voltage tests of various large power transformers, power cables, steam turbines, hydro generators and other capacitive equipment must be carried out strictly according to the test procedures on a regular basis; Under power frequency conditions, due to the large capacitance of the test piece or high testing…

Multiple frequency withstand voltage devices and triple frequency devices have different advantages and disadvantages in specific applications, and there is no absolute distinction between good and bad. Below, I will introduce their respective characteristics for you to choose from:1、Triple frequency:Triple frequency refers to increasing the power frequency to three times…

We all know that voltage transformers (PT) cannot be short circuited, and current transformers (CT) cannot be open circuited. Once the voltage transformer is short circuited or the current transformer is open circuited, it can cause damage or danger to the transformer. In principle, we all know that voltage transformers…

VLF HV Generator is a type of power equipment used to generate ultra-low frequency and high voltage. It is usually widely used in the testing and diagnosis of power systems, insulation material testing, and other related fields. Ultra low frequency (VLF) signals refer to electrical signals in the frequency range…

The oil chromatography analyzer mainly utilizes the differences in boiling point, polarity, and adsorption properties of substances to achieve the separation of mixtures. After the sample to be analyzed vaporizes in the gasification chamber, an inert gas (i.e. carrier gas, also known as mobile phase) is introduced into the chromatographic…