The CKPM301 microcomputer protection device adopts a high-integration, bus-out-chip microprocessor to process the signals from the current and voltage transformers, and control the output of the device through digital logic operations. The device has a compact structure, a sealed case, maintenance-free design, and good anti-interference performance. It is very suitable for the ring network cabinet system with harsh operating environment and limited installation positions.

Features

Stable performance; the whole machine adopts extremely low power consumption design technology to ensure that the protection function can be started reliably and quickly under any conditions. High-precision components and processes ensure the accuracy, reliability and long service life of the device.

The structure is simple; the device structure is simple and compact, the installation is convenient and flexible, and it is suitable for the compact installation conditions of the ring network cabinet.

Flexible configuration; flexible and complete protection configuration, various protection functions can be switched on and off through software; RS-232 and RS-485 communication bus interfaces are provided, and open communication protocols are provided to users to facilitate the realization of SCADA.

Stable performance; phase-to-phase inverse-time overcurrent protection and zero-sequence inverse-time overcurrent protection selected from five IEC standard inverse-time curves.

Parameter Name	Parameter Value
Type	power current voltage
Applications	transformer
Configuration	compact
Interface	RS-485 RS-232
Other characteristics	high-precision SCADA