2022-05-09The vacuum interrupter is the most important component of the vacuum circuit breaker. Let's talk about this component:
2022-03-18The selection of rated current value and rated short-circuit breaking current value should be based on the actual capacity of the power grid, and try to overcome the tendency of taking the larger the insurance factor as much as possible.
2022-03-15Mechanical life is the main evaluation index for the product quality of high-voltage vacuum circuit breakers. According to relevant data reports
2022-03-141. Analysis of the reasons why the circuit breaker cannot be opened (1) Before opening, if the red light does not light up, it may be caused by the following control loops
2022-03-14igh-voltage circuit breakers, also known as high-voltage switches, are important electrical appliances in high-voltage electrical equipment. In normal operation, it can be used to connect or disconnect the load current;
2022-02-15The performance requirements of zinc oxide resistors are constantly improving, mainly based on the formula, and relying on the manufacturing process to ensure good performance.
2022-02-11Whether the vacuum degree of the vacuum interrupter is good or not is directly related to the insulation performance and arc-extinguishing performance of the vacuum switch.
2022-02-10The problems that should be paid attention to in the operation of the high-voltage load switch are basically similar to those of the high-voltage isolating switch
2022-01-06In the grounding system, grounding is the most important part of lightning protection technology, whether it is direct lightning, induced lightning, or other forms of lightning
2022-01-04The indoor ambient temperature is not higher than +40℃ and not lower than -25℃; the outdoor ambient temperature is not higher than +40℃ and not lower than -40℃.
2021-12-28ZW-32 vacuum circuit breaker is composed of four parts: vacuum interrupter, operating mechanism, insulation and current transformer.
2021-12-16Connecting fittings are mainly used for overhead power lines in the construction of power fittings and used in substations constructed by power bureaus.