Nowadays, as reported in the news Willamette River dams’ hydropower may end to protect endangered salmon, hydropower stations have once again come into public view. Next, we will briefly introduce the core electrical equipment of hydropower stations, mainly involving three…

Introduction Digital protection relays for 11kV distribution rooms provide full-range circuit protection, precise monitoring and seamless SCADA connectivity to prevent false tripping and ensure safe, stable and smart operation of 11kV medium-voltage power systems. When designing or upgrading an 11kV…

A Practical Guide for Utilities, EPC Contractors, and Industrial Power Users What Is Protection of Switchgear? Protection of switchgear relies on secondary protection devices installed inside switchgears. These units monitor circuits in real time, trip quickly to isolate faults and…

What Is Voltage Protection Relay in a Protection Relay? Voltage protection is an indispensable core part of modern protective relay systems. A reliable Voltage Protection Relay continuously monitors system voltage and triggers corresponding actions once voltage deviates from the normal…

IEC 60870‑5‑101, 102, 103 and 104 belong to the IEC 60870‑5 family of power telecontrol protocols formulated by IEC TC57. They are designed respectively for serial telecontrol, energy data transmission, relay protection and TCP/IP network communication. Modbus is one of…

Pump station automation systems integrate PLC control, SCADA monitoring, HMI interfaces, protection relays, sensors and motor control equipment to automate pump operation. A pump station SCADA system enables operators to monitor pump status, flow, pressure, water level, alarms and electrical…