CKPM502 Switch Controller
CKPM502 boundary switch control device is a new generation of intelligent digital microcomputer protection control device developed by the company according to the characteristics of power distribution network and the development. Currently, the distribution network circuit mainly has cable type, overhead lines & mixed type, the traditional microcomputer protection only adapt to one of the line protection types, and the newly developed switch control device product integrates these two types as a whole. According to different type and switch, different type and function (cable type or mixed type) can be chosen; the device can switch over to corresponding fixed value setting, protection of logic and event etc; any one of the type has the function of phase to phase short circuit protection and zero-sequence protection, zero-sequence protection can be applied for neutral non-grounding, indirection grounding system through compensation winding and Neutral point via small resistance grounding line. CKPM502 boundary switch control device is applied to 35kV and below level protection of transmission and distribution power grid, supporting the use of SF6 gas type switchgear and fixed switchgear etc. with fault self-detecting and control protection functions; temporary fault and permanent fault can be automatically indentified and removed. It is also applied to the protection of distribution boundary users in incoming side, boundary lines and terminal lines.