HomeProductsEnergy monitoring and protectionAM Series Medium Voltage Protection RelaysAM5 Series Medium Voltage Protection Relays

AM5 Series Medium Voltage Protection Relays

The AM5 series microcomputer protection relay integrates protection and control. It is suitable for substations with voltages up to 35 kV and provides comprehensive protection and control. Applications include energy, water management, transportation, petroleum, chemical, coal, metallurgy, and other industries.

  • A comprehensive set of protection, depending on the application;
  • 8 current inputs, 4 voltage inputs, 16 DI, 10 DO;
  • Auxiliary power supply adaptable with AC220V, DC220V, DC110V, AC110V;
  • 2 serial RS485 interfaces, IEC 60870-5-101, IEC 60870-5-103 and Modbus RTU;
  • 1 RS232 for user updates;
  • 1 GPS for GPS timing;
  • More than 200 event sequence records, more than 400 system logs and more than 10 seconds long trigger context records;
  • Powerful graphically programmable logic.
  • Line protection, motor protection, capacitor protection, branch protection

Product info

Power supply:AC/DC220V or AC/DC110V or DC48V
Nominal voltage: AC 100V/100/√3V
Accuracy: ±0.5 %
Rated current: AC 5 A/1 A
Nominal frequency: 50 Hz or 60 Hz
Mechanical life: ≥10000 times
Switching capacity: ≥1000 W, L/R = 40 ms
Inrush current:continuous ≥ 5 A, short-term (200 ms) ≥ 30 A
Widely used in substations

Technical data

AM5 Rated input power Area accuracy Power consumption
Power supply AC220V/DC220V, DC110V,DC48V Rated input power * (1±20%) —– ≤10W (DC)
Voltage input AC 100V/100/√3V 1~120V ±0.5% ≤0.5VA single-phase
Input current AC 5A / 1A 0.04in~15in ±0.5% ≤0.5VA single-phase
frequency 50Hz 45~55Hz ±0.1Hz —–
DI AC220V/DC220V, DC110V, DC48V Rated input power * (1±20%) —– ≤1W (DC220V) each phase

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