GE/ ALSTOM P442 NUMERICAL DISTANCE PROTECTION RELAYS

GE P442 Protection Relays, the MiCOM Agile P441, P442 and P444 numerical full scheme distance relays provide flexible, fast and reliable protection of transmission and sub-transmission lines. They include full scheme 5-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.

Alstom Numerical P442 distance protection systems are ideal for single circuit breaker application, single and/or 3-pole tripping, and includes a full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism.

GE P442 Protection Relays Key features:

• Dual algorithm distance operation for maximum fault detection dependability
• Deploy in 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

The Agile P441, P442 and P444 have a settable quadrilateral operating characteristic that offers consistent 0.85-1.3 cycle zone 1 operating time for general distance application. Customers have a choice of cost-effective built-in teleprotection: InterMiCOM64 at 56/64 kbit/s for direct fiber or MUX links with 2 or 3 ended applications, or EIA (RS) 232 for MODEM links in 2 ended applications. The IEC 61850 redundant Ethernet supports self healing ring, RSTP, dual homing or PRP.

Alstom P442 Protection Relays 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
• Variety of built-in aided schemes over 2 channels
• Unparallelled speed, security and selectivity

GE Micom P442 Technical Specification

• TypeNumerical Relay

• Protection TypeTransmission

• Voltage24V-240V

• AC\DC OperatedAuxillary supply AC/DC

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!