Description

GE MiCOM P645 Relay

GE MiCOM P645 Relay helps preserve transformer service life and provides fast protection for transformer faults. The platform consists of three model variants (P642, P643, and P645) that cover two and three-winding transformers (including auto-transformers), with up to five sets of 3-phase CT inputs, and offers high and low impedance restricted earth fault and has integral asset management capability.

Key features of GE MiCOM P645 Relay:

• High stability during external fault with heavy CT saturation due to transient bias technique
• No slow-down of differential elements due to 2nd harmonic component in fault currents
• Adaptable to transformers with considerable CT mismatch between terminals – matching factor up to 20
• Current transformer supervision operates with or without voltage inputs, fast enough to prevent any spurious tripping and alarm
• 10 integrated function keys, tri-color LEDs, and graphical programmable logic permit the creation of comprehensive, tailored schemes
• No internal batteries in GE-branded models – remove a maintenance item and eases air-freight logistics
• Supports all major digital control system protocols, easing integration into DCS, SCADA, and engineering workstations
• NERC CIP cybersecurity
• Binary inputs ESI48-4 EB2 compliant
• Harsh environment protection extends the life of the product

Enhanced Ethernet board module with switchable Ethernet redundancy delivered in a single model.

It supports PRP, HSR, and RSTP in one model, allowing a single P40 model to be used in any application requiring redundant Ethernet communications. The new module is designed to handle high-density traffic in the IEC 61850-8-1 network, with time latency halved. Larger architecture digital substations can also be supported, with up to 50 nodes now possible in HSR rings.

Applications & Benefits Of  GE MiCOM P645 Relay For Industrial Applications:

• Universal IRIG-B – Modulated and demodulated supported in the same model
• HSR Ring – Extended to 50 node support for larger substation architectures
• Fast performance, particularly in onerous applications such as where process bus GOOSE is used for tripping purposes