Ontario Pipeline - Spring 2018 - 18

FEATURE | OPERATIONS

WATER OPERATIONS:
SECURITY OF SUPPLY - MONITORING
POWER STATUS OF REMOTE
WATER FACILITIES
BY KEVIN STEWART AND GRAHAM NASBY

ALL IMAGES COURTESY CITY OF GUELPH

C

Figure 1 - UPS (interruptible power supplies) are used to keep PLC panels online during
short power interruptions and to keep PLC panels online while on-site generators are
starting up. Notice the communications network card in the back of the UPS.
18 | O N T A R I O P I P E L I N E | SPRING 2018

ontrary to what your parents said,
electricity and water do mix! In
fact, for any water utility, a reliable electricity supply is essential to keeping the water on and ensuring
regulatory compliance. Pumps require
electricity to operate, and the SCADA
(supervisory control and data acquisition)
system needs electricity to monitor/control
process equipment and log critical compliance data. However, effectively monitoring
the electricity supply to water facilities is
challenging. For example, Guelph Water
has 30 remote facilities, all unstaffed, with
each having its own individual power feeds.
Thus, when there is a storm, or there are
problems in the hydro utility's power lines, it
is imperative that operators know which sites
have power and which do not. Furthermore
remote monitoring is needed to check on
the status of generators, automatic transfer switches, and uninterruptable power
supplies (UPSs). Using this power status
information, the operations team can then
effectively determine when, and in what
order, to check on facilities - or make process
adjustments - during power outages.
At Guelph Water, each of the 35 SCADA
programmable logic controllers (PLCs) that
are distributed through our water facilities is equipped with a UPS. The UPSs keep
the PLCs online during power outages, so
the SCADA system can continue logging
process data and providing monitoring/
control connectivity to the centralized
SCADA system. The UPS units are sized to
provide at least 30 minutes of runtime for
the PLC, which is enough time to cover
over 95 per cent of power outages. As part
of this setup, the PLCs also look after shutting off process equipment at the start of
a power outage, and re-starting facilities
once stable power returns.



Table of Contents for the Digital Edition of Ontario Pipeline - Spring 2018

From the Publications Chair
The OWWA Report
The OMWA Report
The OWWEA Report
From Our AWWA Director
Ontario’s Water Conference and Trade Show
Five Lessons about the Perils of Social Media
Water Operations: Security of Supply
Premature Infrastructure Failures and How to Prevent Them
Trust on Tap: A Risk Communication Perspective
Pursuing Excellence - Brampton Asset Management Training and Innovation Centre
Solving Challenges with Volunteer Groups
Committee Reports
OWWEA Member Listing
OWWEA Member News
Index of Advertisers
Ontario Pipeline - Spring 2018 - Intro
Ontario Pipeline - Spring 2018 - bellyband1
Ontario Pipeline - Spring 2018 - bellyband2
Ontario Pipeline - Spring 2018 - cover1
Ontario Pipeline - Spring 2018 - cover2
Ontario Pipeline - Spring 2018 - 3
Ontario Pipeline - Spring 2018 - 4
Ontario Pipeline - Spring 2018 - 5
Ontario Pipeline - Spring 2018 - 6
Ontario Pipeline - Spring 2018 - From the Publications Chair
Ontario Pipeline - Spring 2018 - The OWWA Report
Ontario Pipeline - Spring 2018 - The OMWA Report
Ontario Pipeline - Spring 2018 - The OWWEA Report
Ontario Pipeline - Spring 2018 - From Our AWWA Director
Ontario Pipeline - Spring 2018 - Ontario’s Water Conference and Trade Show
Ontario Pipeline - Spring 2018 - 13
Ontario Pipeline - Spring 2018 - Five Lessons about the Perils of Social Media
Ontario Pipeline - Spring 2018 - 15
Ontario Pipeline - Spring 2018 - 16
Ontario Pipeline - Spring 2018 - 17
Ontario Pipeline - Spring 2018 - Water Operations: Security of Supply
Ontario Pipeline - Spring 2018 - 19
Ontario Pipeline - Spring 2018 - 20
Ontario Pipeline - Spring 2018 - 21
Ontario Pipeline - Spring 2018 - Premature Infrastructure Failures and How to Prevent Them
Ontario Pipeline - Spring 2018 - 23
Ontario Pipeline - Spring 2018 - Trust on Tap: A Risk Communication Perspective
Ontario Pipeline - Spring 2018 - 25
Ontario Pipeline - Spring 2018 - Pursuing Excellence - Brampton Asset Management Training and Innovation Centre
Ontario Pipeline - Spring 2018 - 27
Ontario Pipeline - Spring 2018 - 28
Ontario Pipeline - Spring 2018 - Solving Challenges with Volunteer Groups
Ontario Pipeline - Spring 2018 - 30
Ontario Pipeline - Spring 2018 - 31
Ontario Pipeline - Spring 2018 - Committee Reports
Ontario Pipeline - Spring 2018 - 33
Ontario Pipeline - Spring 2018 - 34
Ontario Pipeline - Spring 2018 - 35
Ontario Pipeline - Spring 2018 - 36
Ontario Pipeline - Spring 2018 - OWWEA Member Listing
Ontario Pipeline - Spring 2018 - 38
Ontario Pipeline - Spring 2018 - 39
Ontario Pipeline - Spring 2018 - 40
Ontario Pipeline - Spring 2018 - OWWEA Member News
Ontario Pipeline - Spring 2018 - Index of Advertisers
Ontario Pipeline - Spring 2018 - cover3
Ontario Pipeline - Spring 2018 - cover4
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