Schneider Micom P443 Full Scheme Distance Protection Numerical relay

Schneider Easergy MiCOM P443 protection relay is complemented by various serial and Ethernet communication protocols including IEC61850 and a multi-language HMI featuring English, French, German, Spanish, Russian and Chinese. Protection is further enhanced by the use of Programmable Scheme Logic within the device.

The range offers quadrilateral (polygon) or mho characteristics with a long history of high performance, load blinding areas, comprehensive range of teleprotection schemes, Power swing alarm and blocking and Multishot autoreclosure with check synchronism.

Housed in 40TE, 60TE or 80TE, 4U case sizes, this advanced distance protection range has fault clearance times of 0.7 to 1 cycle depending on model. Easergy MiCOM P441, P442 and P444 operate on Quadrilateral distance characteristics, whereas Easergy MiCOM P443, P445 and P446 offer both Quadrilateral and Mho distance characteristics.

Latest communication protocols & Ethernet Redundancy

Fully Equipped with the latest communications protocols (IEC61850 Ed1 & Ed2 available in the same device, selection by setting).

Maximum availability and reliability of Ethernet communications thanks to the implementation of PRP/HSR standard redundancy protocols with an instantaneous recovery time (0 ms) in case of network failure.

Dual IP address allows the device to be connected to 2 independent communication networks (e.g, SCADA system network & Maintenance network)

Universal IRIG-B input (automatically detects modulated or unmodulated signal)
Major enhancement to Cybersecurity

Operational & Cybersecurity, compliant to IEC 62351, helps protect installations with security based on embedded features such as Role Based Access Control (RBAC), Port Hardening, Security Logs and Access Traceability. The IED by default includes RBAC with different users defined and a Security Administrator.
Proven experience and fastest operating times

Extensive distance protection experience and algorithms using Delta algorithm, Mho and Impedance measurement techniques.

Mho pedigree with over 25 years experience

Wide choice of channel aided scheme

Relay determines its own settings from protected line data (Mho models)
Setting free power swing detection and unblocking for the faults during swings (Mho models)

Our catalog of Schneider Micom Protection Relays provides leading and reliable protection and control for any network application. The latest Protection Relays also offer comprehensive security and dependability for your electrical grid, from overcurrent and arc protection to distance and differential protection of the transmission line. Our product range offers solid protection with advanced communications such as the IEC 61850 to give you peace of mind in protecting your grid.