Cable fault tester is a very useful tool in the power industry, which can help engineers quickly locate cable faults and improve maintenance efficiency. However, in practical use, we often encounter some special situations, such as high resistance grounding faults, flashover faults, etc., which can bring certain challenges to testing.…

Cable fault testing is an important power detection technology that can detect the location and type of cable faults through testing. In cable fault testing, DC test and AC test are two commonly used test methods. So, how should we choose between DC test or AC test when conducting cable…

Cable identifier is an instrument used to identify cables. In the field of environmental protection, cable identification devices can assist experimenters in identifying cables, thereby better ensuring environmental safety. This article will introduce the application of cable identification devices in the field of environmental protection, in order to provide more…

1. Large flow rate of zinc oxide lightning arresterThis is mainly reflected in the ability of the lightning arrester to absorb various lightning overvoltage, power frequency transient overvoltage, and switching overvoltage. The flow capacity of Tuopu Electric fully meets or even exceeds the requirements of national standards. The indicators such…

Several reasons for power transformer burnout:1. Overvoltage① Suffer from lightning strikesThe high and low voltage lines of power transformers are mostly introduced by overhead lines. Because they are located in mountainous forests, the probability of lightning strikes is high. Therefore, during the thunderstorm season every year, the proportion of distribution…

The SF6 micro water tester, also known as the SF6 dew point tester, is mainly used to accurately detect gas humidity and can quickly detect the accuracy of hydrogen humidity in the SF6 switch gas humidity box hydrogen production station and hydrogen cooled generator in the substation. When using this…

ZC-401A Generator Rotor AC Impedance Tester is a specialized instrument for determining whether there is an inter turn short circuit in the generator rotor winding. It can measure the voltage, current, impedance, power, phase angle, and other parameters of the rotor winding automatically and manually (unidirectional or bidirectional). The tester…

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. Detection RangeFirst, determine the rated voltage range of the electrical equipment to be monitored, then select a partial discharge detector that can accommodate this range.…

Choosing a suitable partial discharge detector requires considering the following factors:1. Detection rangeFirstly, determine the rated voltage range of the electrical equipment that needs to be monitored, and then select a partial discharge detector that can adapt to the range. Generally speaking, the rated voltage range of the detector should…

The insulation resistance tester is a new generation of transformer DC resistance testing instrument, which is small in size, light in weight, and easy to carry. It has the characteristics of rapid measurement, convenient use, and high measurement accuracy. The self check and automatic calibration functions reduce the difficulty of…