Transformer Protection Relays - P642, P643, P645
The P64, part of the MiCOM P40 Agile 5th Generation family is a transformer protection relay that helps preserve transformer service life and provides fast protection for transformer faults with a graphical HMI as standard. 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:
- Integrated full color graphical HMI display, for single-line diagram control of the protected bay.
- Dedicated RJ45 Ethernet port for engineering access by protection engineers/operators
- 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
- Asset health monitoring - transformer Loss of Life estimation according to IEEE model
- 10 integrated function keys, tri-color LEDs, and graphical programmable logic permit the creation of comprehensive, tailored schemes
- Simple settings - wizard requires only nameplate data
- No internal batteries in GE Vernova-branded models – removes 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 coating as standard for all GE Vernova MiCOM P40 relays protects against corrosive gases such as H2S or SO2
- Advanced Cybersecurity including AAA, Radius, RBAC, and Syslog
- Secure Data vault with 5000 events, 100 Fault records and over 1000s of Oscillography
- Advanced IEC 61850 Edition 2.1 implementation
