The Fraser Valley Regional District in British Columbia is located approximately
50 miles east of Vancouver and is responsible for the treatment and transmission
of water through over 60 miles of high pressure water mains from lake and creek
sources to two municipalities. The District services a population of about
110,000 people. To improve the operation and control of the District's facilities,
a supervisory control and data acquisition (SCADA) upgrade was undertaken. As
part of this upgrade the remote control of the Dickson Lake Reservoir was
implemented. The reservoir is located about 50 kilometers from the central
administration office on a rough logging road through the Coast Mountains. The
site is especially inaccessible in the winter due to heavy snowfall. A remote
terminal unit (RTU) was installed at the reservoir to perform the local control
and to provide communications to the operations center. Remote input-output
points from analog and discrete instrumentation and electrical equipment were
wired into the RTU cards. To minimize radio traffic the RTU was programmed to
report from a change of set points such as reservoir level. Electric actuators
were installed on the reservoir discharge gates to enable remote operation of the
gates. Power was unavailable at the site and a solar array and battery stacks
were used to provide electricity to operate the actuators and RTU. This paper
will discuss the planning and design of municipal SCADA systems and present a
case study of the Dickson Lake Reservoir SCADA. The benefits of SCADA for
operation and maintenance will be discussed. Includes figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 430 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 7 |
| Published : | 01/01/1999 |
