YJV cable is a commonly used type of power cable. Nowadays, many people refer to YJV cable when talking about cable. As the backbone cable in power transmission, YJV cable is like the arterial blood vessels in human blood vessels, or the trunk of a tree, which shows its important position in powe...

Power cables are relatively common cables for distributing and transmitting electrical energy. They are usually used in urban underground power grids, internal power supply in industrial and mining enterprises, and so on. People who have some knowledge of cables will find that power cables have m...

1. Before the on-load tap-changer is put into operation, it should be checked whether the oil level is normal, there is no oil leakage, and the control box should be well-proofed from moisture. 2. After the newly commissioned on-load tap-changer gas relay is installed, the operator should release...

The efficacy of insulating heat shrinkable sleeves The most critical function of insulating heat shrinkable sleeves is of course insulation maintenance. The efficacy of heat shrinkable sleeves is very common: anti-corrosion, acid and alkali resistance, anti-electricity (insulation), and anti-leak...

Application of SF6 Load Switch in Distribution Network The medium-voltage switches used in general hub substations all use circuit breakers as control and protection devices, and must have automatic reclosing. However, the power supply capacity of each power distribution station in the ring netwo...

Performance Comparison of SF6 Combination Appliance and Circuit Breaker Breaking no-load transformer performance Most of the load properties of the ring main unit in the power distribution system are the splitting and closing of the distribution transformer. The general capacity is 315-1250 kVA, ...

1) The load switch that uses SF6 gas as insulation and arc extinguishing medium is called SF6 load switch. It can be used for making and breaking load current, as well as making and breaking no-load lines, no-load transformers and capacitor banks. 2) SF6 load switch can close short-circuit curren...

1. First of all, the most intuitive point is that the insulation materials of XLPE insulated power cables and PE insulated power cables are different. 2. Compared with ordinary power cables, XLPE insulated power cables have better temperature resistance, and their temperature resistance levels ca...

The load switch on the column has the capacity of carrying and breaking the rated current, but cannot break the short-circuit current. It is mainly used for line segmentation and fault isolation. (1) Gas-producing load switch. The gas-generating load switch is to use the slit composed of solid ga...

Cables can be divided into: power cables, control cables, communication cables, radio frequency cables, constant temperature cables, temperature control cables, etc. Power cables transmit and distribute high-power electrical energy. Above 35 kV are called medium and low voltage cables, or power d...

Power cables have been widely used in many industries, and their use has brought us great help. Today, we will introduce the use effects of high-voltage power cables and how to choose high-quality products. ? The application of high-voltage power cables has become an indispensable part of our liv...

Many electricians think that fuses are outdated protection appliances, while DC circuit breakers are advanced protection appliances. Is this notion correct? It can be seen that the time-current characteristic change curve of the fuse is closer to the characteristic analysis curve of the thermal e...