The Importance of Isolating Switches in Electrical Systems
In the field of electrical systems, safety and reliability are of paramount importance. Isolating switches are one of the key components that play an important role in ensuring the safety and proper operation of circuits. Isolating switches are essential for isolating electrical circuits, providing a safe means for maintenance and repair work, and protecting against electrical hazards. In this blog, we’ll take a closer look at the importance of disconnect switches in electrical systems and their role in ensuring safe and efficient electrical operations.
State Grid Zhejiang will invest more than 240 million yuan in charging facilities in 2020
On December 15, Shitang bus charging station in Gongshu District, Hangzhou City, Zhejiang Province completed the installation and commissioning of charging equipment. So far, State Grid Zhejiang Electric Power Co., Ltd. has completed the construction task of charging facilities project in 2020, built 341 charging stations and 2485 charging piles, and completed the investment of 240.3 million yuan.
Difference between surge protector and arrester
1. Arresters have several voltage levels, from 0.38kv low voltage to 500kV UHV, while surge protective devices are generally only low voltage products;
2. Most of the arresters are installed on the primary system to prevent the direct invasion of lightning wave, while most of the surge protectors are installed on the secondary system, which is a supplementary measure after the arrester eliminates the direct invasion of lightning wave, or when the arrester does not eliminate the lightning wave completely;
The graphene modified electrical contact developed by the joint research institute is expected to greatly reduce the failure rate of large capacity circuit breakers
With the steady progress of UHV AC / DC transmission project construction, the research results of UHV power transmission and transformation technology are increasingly abundant, which provides strong scientific and technological support for the construction of an international leading energy Internet enterprise with Chinese characteristics. With the rapid development of power grid, the problem of short-circuit current has gradually become a prominent factor restricting the growth of power grid load and the development of power grid.
