Operating Principle, Function, and Setting Calculation of Instantaneous Overcurrent Protection
Instantaneous Overcurrent Protection (IOCP) is a protection scheme used in power systems to rapidly clear short-circuit faults. Its defining feature is zero intentional time delay (or minimal delay), with typical operating times of 20–50 ms, complying with IEC 60255-151 (Overcurrent Protection Standards) and IEEE C37.91 (Guide for Protection Relay Applications).
2025/07/03
What are the differences between the Modbus, 103, 104, and 61850 communication protocols?
Modbus, IEC 60870-5-103, IEC 60870-5-104, and IEC 61850 are widely used communication protocols in the fields of power systems and industrial automation. They exhibit significant differences in design objectives, architecture, data models, and application scenarios. Below is a detailed comparative analysis of them.
2025/07/03
Configuration Principles for Motor Protection Systems
Configuration Principles for Motor Protection Systems
2025/07/03
