Loop resistance and DC resistance are two commonly used concepts in electricity, and they have significant differences in properties. Let's take a closer look at the differences between them.1. Different definitionsLoop resistance refers to the total impedance generated in an AC circuit due to the blocking effect of components such…

High voltage dielectric loss tester (referred to as dielectric loss tester) is a high-precision instrument specialized in detecting the dielectric loss tangent value and capacitance of high-voltage electrical equipment. Especially for power institutions such as power plants and substations, dielectric loss testers are often used. This instrument has very powerful…

In the industrial industry, many mechanical equipment relies on the power of the engine for operation, so the performance testing of the engine is particularly important. The KST-401A generator rotor AC impedance tester, carefully developed and launched by Wuhan Kesite Electrical Equipment Co., Ltd., is a specialized instrument for detecting…

Electric power workers often use frequency conversion series resonance AC withstand voltage testing devices in their daily work. This device plays a very important role in AC voltage withstand tests. This device is composed of a combination of variable frequency power supply, excitation transformer, reactor, and voltage divider. Among them,…

In our power system, our power workers are often exposed to electrical radiation, so we need to often wear insulation protection equipment such as insulated boots and gloves. How can we ensure the insulation performance of these protective equipment is intact? Usually, we use insulation boots and gloves withstand voltage…

Electric wires and cables play a crucial role in the infrastructure construction of our country. Power cables are commonly used in urban underground power grids, power station outgoing lines, internal power supply of industrial and mining enterprises, and underwater transmission lines crossing rivers and seawater. They are composed of four…

The impedance of a direct current path is called a direct current resistance, which is the inherent static resistance of the component when a direct current is applied. The direct current resistance is governed by Ohm's law R=U/I.The impedance of the AC path is called the AC resistance. AC resistance…

The reliability of electrical products has always been one of the important indicators of engineering quality. The reliability of the power grid largely depends on the reliability of various switchgear in the grid. Once the switching device malfunctions, the entire system will not function properly or even become paralyzed, resulting…

Overview of relevant advantages and characteristics of equipment and devices for withstand voltage test of insulating boots (gloves) protective toolsThe personnel engaged in electric power operation are always in the current environment. In order to prevent the occurrence of electric power accidents, they need to take corresponding insulation protection measures.…

Short circuit impedance, also known as voltage impedance, is an important reference to measure the parallel operation and economic efficiency of transformers.The transformer short-circuit impedance and load impedance shall be measured with no-load and on load testers. When testing the short-circuit impedance, the secondary side of the transformer is short…