Corporate News

With the rapid development of China's electric power industry, the interconnection of large power grids has become an inevitable trend. The security guarantee and defense system of super large capacity long-distance transmission and super large scale interconnected power grid is a new challenge for power industry in the new era. China's power grid is relatively weak, and its ability to withstand accidents is poor. Even if the relay protection removes the fault quickly when the fault occurs, the accident will inevitably expand. Therefore, strengthening the construction of backbone grid is the fundamental solution to ensure the stable operation of the system, and the economic and effective way to strengthen the backbone grid is to build ultra-high voltage transmission lines. The configuration and action coordination of UHV transmission line protection and reclosing, in addition to meeting the requirements of system stability

2020/04/30 16:33:15

The compound overvoltage protector is specially used in 35KV and below medium voltage power grids. It is mainly used to protect the insulation of transformers, motors, parallel compensation capacitors and other electrical equipment from overvoltage damage. This product is connected in various switch cabinets of different models, and can also be directly installed in the handcart chassis of the switch cabinet or the transformer room. This product is divided into Z type (suitable for protecting motors and generators) and P type (suitable for protecting transformers, reactors and lines). Users should select appropriate products according to the protected objects when ordering and installing. Discharge counter can be selected for compound overvoltage protector. Please note

2020/03/21 15:42:28

The primary harmonic eliminator should be reasonably selected. Generally, PT harmonic eliminator should be installed and used as long as there are nonlinear loads. Now the load is growing rapidly. How to install the harmonic eliminator better? First, consider the voltage level of the product, voltage switching function, PT overvoltage warning line and fuse line, and generally have small wire grounding protection devices. Our operation between various types of opposites is simple and easy to understand. Customers can install harmonic elimination by themselves according to the product manual, and generally do not need to arrange employees to install on site. Its protection effect is very ideal, and the better protection performance will not change with the change of power grid operation mode. One time harmonic elimination general body

2020/03/10 09:46:34

The generator neutral point grounding resistance cabinet integrates scattered single-phase transformers, resistors, current transformers, measuring instruments, grounding protection output terminals and other electrical equipment into a closed metal cabinet, and can be equipped with isolating switches (vacuum contactors), lightning arresters, and complete power supplies; High safety and reliability, clear and tidy layout, convenient installation, commissioning, operation and maintenance. The single-phase transformer is a single-phase dry side transformer with stable performance and strong impact resistance. The secondary side of the transformer is made of stainless steel. The generator neutral point grounding resistance box is connected with the generator neutral point. When the single-phase grounding fault occurs in the power grid, the stator of the generator is wound

2020/03/10 09:45:09