The variable frequency series resonance test system is a high-voltage electrical equipment insulation performance detection device designed based on the principle of series resonance. It is widely used in industries such as electricity, metallurgy, petroleum, and chemical engineering, and is suitable for AC voltage withstand tests of large-capacity, high-voltage capacitive…

The DC high-voltage generator is an instrument that provides a high-voltage DC source, and the instrument must be reliably grounded before use. Personnel using DC high-voltage generators must have a professional certificate for high-voltage testing. When using a DC high-voltage generator, users must comply with Article 168 of the Electric…

Both high-frequency DC high-voltage generators and ultra-low-frequency high-voltage generators are instruments that detect hidden defects in the insulation of electrical equipment. They understand and master the insulation status of the equipment, ensuring the safe and reliable operation of high-voltage electrical equipment. Assess the ability of equipment to withstand overvoltage, simulate…

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…