Typical Project
Dalian Metro Line 1# 2# Main Substation Integrated Automation System
Construction of the Dalian Metro Line 1 and 2 was officially started on July 25, 2009, and is scheduled to be completed and opened to traffic in December 2012. Dalian Metro starts from the Gangwan Plaza in the east, and ends the mouth of the river in the south, Hongqi West Road in the west, and Yaojia in the north. After the completion of construction, the passenger capacity of the metro will reach 995,000 passenger/day.
The stray current monitoring system in the stray current protection design of Dalian Metro project adopts the centralized management scheme in which the stray current is monitored by power supply zone. The monitoring device of each subsystem is connected with the SCADA system in the traction substation, of which the communication channel is used to communicate with the stray current monitoring terminal of the control center. The stray current protection system transmits information through the SCADA system communication transmission channels. The stray current protection system monitoring hosts are built in the control center, which are responsible for measurement and control of the whole line, and have the function such as data saving, viewing, retrieval, report, curve, analysis, prediction, etc.