3 Phase Overcurrent and Earth Fault Protection Relays

MiCOM P12x is a range of directional and non-directional overcurrent relays from single phase or earth fault up to the multifunctional three-phase P127 device with voltage protection functions. Models available: MiCOM P120, MiCOM P121, MiCOM P122, MiCOM P122C, MiCOM P123, MiCOM P125, MiCOM P126, MiCOM P127

Features

MiCOM P12x is housed in a compact 4U case in 20TE or 30TE widths, MiCOM P12x is fully withdrawable to facilitate easy and quick replacement. The dual-rated current input is powered by conventional 1A or 5A Current Transformers. A wide-range power supply allows a flexible auxiliary voltage to be applied from 24-250Vdc/48-240Vac. P122 also offers a compact case solution with reduced hardware and functionality where installation space is minimal.

Software features include 2 settings groups for quick switching between application configurations and customisable reflex automation, allowing logical AND, OR or NOT gates.

MiCOM P12x devices also include a rear RS485 communication port with a variety of protocols; DNP3, IEC 60870-5-103, Modbus and Courier.

Standard Manufacturers Warranty: 2 years

Advantages

- User friendly HMI

- Reliable solution with more than 100 000 units installed around the world

- Flexible and simple solution

- Advanced post fault analysis

- Withdrawable

Application

MiCOM P12x offers a wide range of protection functions allowing its use in many applications including:

- Main or backup protection on MV/HV systems

- Overhead lines & underground cables, backup on HV systems.

- Insulated, solid earthed, resistance earthed, and Petersen coil earthed neutral systems

- MV subscribers, Industry, Transport

- Generator and Transformer schemes