The protection setting values and protection debugging for the substation refer to those components
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The protection setting values and protection debugging for substation rooms refer to how fees are determined for those components
Could someone help explain this? I’m not very familiar with electricity distribution. There’s a list provided, and it includes a fee for debugging; I don’t know how to claim that fee
This post was last edited by liuzhenggang on 2009-8-4 at 14:55. Based on parameters such as the actual load on site, the maximum power of each individual unit, the capacity of the upstream power supply switches, and the length of the power supply lines, the design department or the power supply specialist team carries out calculations to determine the overload breaking current and short-circuit breaking current values for the high-voltage switches.
This generally refers to high-voltage distribution devices of 10 KV and above; whether it is relay protection or microcomputer-based integrated protection systems, the protection setting values must be calculated, and the operating values must be adjusted and tested based on the actual conditions of the power system. This is a necessary condition for the operation of the power grid.
Things such as switch contact resistance, switching time, rated current, the quick-break and timed overcurrent protection values as well as overload protection values of integrated protection systems, transformer turns ratio, arresters, etc., can be handled by this person themselves. Regarding fees. . . . . . It’s difficult to establish a standard for monopoly enterprises.
This is usually done by companies affiliated with the power supply department. It’s quite dark there, but the wiring is well-organized