Bulgan A, B Transmission Line Relay Protection & Automation

Highlights:

– Relay protection upgraded from electromechanical to microprocessor-based technology
– Improved sensitivity and fast fault clearance capability — the core requirements of relay protection
– IEC61850-compliant microprocessor relay protection equipment installed at the substation

Works performed:

Decommissioning of old relay protection panels
New relay protection and automation solution design, installation, and commissioning for 4 x 110 kV transmission line terminals

Solutions used:

RED670 — Main line relay protection
REL650 — Backup line relay protection