Bulgan Substation — Shintoit & Busbar Protection

Highlights:

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

Works performed:

Decommissioning of old 110 kV bus coupler relay protection panel
New 110 kV bus coupler relay protection and automation solution design, installation, testing, and commissioning
Decommissioning of old 110 kV Busbar I and II protection panels
New 110 kV Busbar I and II relay protection and automation solution design, installation, testing, and commissioning

Solutions used:

REC650, REL650 — Bus coupler relay protection
REB670 — Busbar differential protection