Darkhan 10 MW SPP — Relay Protection & SCADA Project

Highlight: Mongolia’s first megawatt-scale solar power plant

Works performed:

Relay protection and automation solution design, installation, and commissioning for the 10 MW, 110/10 kV solar power plant
Relay protection and automation solution design, installation, and commissioning for the 220/110/35/10 kV Darkhan substation expansion
SCADA and communication solution design, installation, and commissioning for the 10 MW, 110/10 kV Nar substation
Integration of the 10 MW, 110/10 kV Nar substation data into DUT LLC’s monitoring and information system and operational communications network

Solutions used:

REJ603 — Line and transformer protection for inverter substations
RET670 — Innovative combined main protection relay for the 110/10 kV Nar substation transformer and line
REF615 — 10 kV feeder protection
MicroSCADA Pro / MicroSCADA 9.4 SYS600 Redundant system — SCADA for the 10 MW solar power plant
RTU540 — Data acquisition device for each inverter and substation measurement and meteorological data
Communication protocols: IEC61850-8-1 for substation, IEC60870-5-104 from each inverter substation
Power Spectrum SCADA system expansion using IEC60870-5-101 protocol to DUT LLC monitoring and information system