Description

GE MiCOM P444

Part of the MiCOM P40 platform, the GE MiCOM P444 numerical relay full scheme distance relays provide flexible, fast, and reliable protection of transmission and sub-transmission lines. Agile P444 Distance Protection System Numerical Relay includes full scheme 6-zone distance, plus aided directional earth fault (DEF) and comprehensive backup protection for utility lines and cables at all voltage levels, particularly oriented towards transmission grids.
These distance protection systems are ideal for single circuit breaker application, single and/or 3-pole tripping, and include a full suite of monitoring, control, and recording capabilities plus fault locator, auto reclose, and check synchronism.

P444 Micom AgileKey features:

• Dual algorithm distance operation for maximum fault detection dependability
• Deploy in traditional CT/VT applications or digital substation architectures with merging units and non-conventional instrument transformers using IEC 61850-9-2 process bus
• Distance to fault location assists dispatching of maintenance crews
• Full-scheme relay offers fast, discriminative response to double-circuit, cross-country, and evolving faults
• No internal batteries in GE-branded models – removes a maintenance item and eases air-freight logistics
• NERC CIP cybersecurity including role-based access control (RBAC), RADIUS and SysLog
• Alstom P444 provides advanced binary inputs that comply with the harshest norms for surge withstand, plus the ESI 48-4 EB2 standard. Spurious wiring pickup is eliminated without the use of interposing relays, external resistors, or time delays. Battery/wiring faults, switching noise, and induction from long parallel circuits are tolerated without misoperation

The GE MiCOM P444 has a settable quadrilateral operating characteristic that offers consistent 0.85-1.1 cycle zone 1 operating time for general distance application. Customers have a choice of cost-effective built-in teleprotection with InterMiCOM, to implement permissive, blocking, and inter tripping schemes.
The IEC 61850 redundant Ethernet option offers RSTP and IEC 62439 PRP/HSR – with the HSR support extending for up to 50 nodes in a station bus ring.

MiCOM P40 Agile P444 Key benefits:

• Comprehensive communication options including IEC 61850 and redundant Ethernet ports
• IEC61850-9-2 interface option allows integration within digital substation process bus architectures
• Unparalleled speed, security, and selectivity
• GE MiCOM P444 is user-customizable with graphical tools

We offer GE’s century-long tradition of power system innovation. From generators to transmission lines, to motors and beyond, we ensure dependable, safe power worldwide. GE offers a wide range of single function and auxiliary relays, along with a portfolio of accessories, to support high-performing and reliable protection and control systems. Explore GE numerical Relays portfolio with us!