Power
Engineering
Software and Solutions
CYMExpress
Newsletter
Volume 7, Issue 3 - May 2012
News
One-day Workshop on Distribution Overcurrent Protection and Coordination
Three new CYME modules
will be presented at the next
CYMDIST-CYMTCC Users
Group:
Cooper Power Systems is pleased to announce a oneday workshop on Distribution Overcurrent Protection
and Coordination that will take place in Montreal,
Canada, on June 18, prior to the CYMDIST-CYMTCC
Users Group.
• Volt-Var Optimization
module
• Low Voltage Networks
module
• State Estimator
CYMTCC 5.1 will be released
this summer.
CYMCAP 6.0 will be released
shortly; featuring cable
damage curve calculations
and isothermal contour plot
for MDB installation, along
with new drag and drop
facilities.
Upcoming Events
Registration to the next
CYME Users Group in
Montreal, Canada (june 19
to 21) is open.
The next CYMDIST and
CYMTCC training is
scheduled to take place
next October in Montreal,
Canada. See www.
cyme.com/courses/
softwaretraining/ for details.
Visit us at:
• CIGRE 2012, August 27
to 31, Paris, France.
• Solar Power
International, September
10 to 13, Orlando,
Florida, USA
• Cooper Industries Smart
Grid Conference, South
Minneapolis, Minnesota,
USA
Developed for engineers involved with the design and/
or operation of overcurrent protection for utilities or
industrial applications, the workshop will provide a
learning experience in applying overcurrent protection
schemes. It will focus on overall system coordination
rules and daily procedures. The workshop will be
taught by Donald Wareham, Regional Power Systems
Engineer at Cooper Power Systems, long-time expert
in distribution protection equipment installation and
operation.
Register on-line at:
www.cyme.com/courses/technicalengineering
CYME and CYMCAP at CIGRÉ Next August
Cooper Power Systems will present its CYME Power
Engineering Software and CYMCAP Cable Ampacity
Calculation suite of applications at the CIGRÉ conference next August in Paris. Our engineers will demonstrate the latest features of our software and discuss
solutions for your power analysis needs.
lead a half day workshop on the rating of cables in
unfavorable thermal environment and non-standard
installations. A CYMCAP User Forum is also on the
program, where the features of the new version 6.0
will be presented.
See more information on our web site.
Two additional activities are planned in conjunction
with the conference. George Anders, Fellow, IEEE, will
New Modeling and Calculation Features in CYMCAP/RTTR
The external thermal resistance of underground
installations depends on the soil thermal resistivity
which has the highest influence on their current carrying capacity. Given the load variation and the corresponding losses, the external thermal resistance
determines the core conductor temperature rise
above ambient temperature. Therefore, both the soil
thermal resistivity and ambient temperature have a
significant effect on the conductor temperature for
a given load variation. CYMCAP/RTTR has recently
been revised and can now estimate real time variations of soil thermal resistivity and soil ambient temperature, instead of assuming standard values for
the whole year that rate installations conservatively.
CYMCAP/RTTR is installed in several utilities around
the world, with new projects in Spain, Germany and
Australia. This is in addition to our history of delivered projects in Switzerland, Sweden, South Africa
and Middle East.
New features introduced:
Read more on our web site.
• Real-time estimation of the soil thermal
resistivity and ambient temperature
• Emergency times up to 72 hours can be
considered. The user can assume either a
constant load or a variable load during an
emergency
www.cyme.com | www.cooperpower.com
• In the case of Multiple Ductbank Backfill
installations, the calculations are much faster
compared to the previous versions
• The user can change the accuracy of
calculations based on the computer’s memory
and speed
• Heat sources can be modeled
• Soil dry out can be considered
CYMExpress
May 2012
New CYME Volt-Var Optimization module
Volt/var optimization (VVO) is one of the most attractive
methods to improve energy conservation and demand
reduction benefits. When facing high energy prices on
the open market at peak load, utilities are considering
methods to perform peak shaving. Furthermore, latest
Model and Verifications (M&V) work performed on real
distribution feeders has revealed benefits for the annual utilization of a volt/var management system.
VVO is done through Conservation Voltage Reduction
(CVR). It is the process of optimizing service voltage
for the purpose of reducing the demand during peak
or off-peak loading conditions which leads to reducing energy consumption. As many utilities are getting
prepared for or are already experiencing VVO benefits,
planning engineers need new tools to assist them to
improve distribution efficiency.
To address the evolving Smart Grid initiatives, Cooper
Power Systems is proud to announce their current
advancement in developing a new CYME software
module: the CYME Volt-Var Optimization module. Its
primary purpose is to provide the planning engineer
with advanced tools, adapted to modern distribution
systems, to assist in building business cases for volt/
var management projects. The module will also provide analytics capabilities for distribution automation
systems to support real or quasi-real time simulation
with the CYMDIST Server Architecture.
General capabilities will include:
• CVR analysis – minimize active power demand
• Var optimization – minimize active power losses
• Integrated Volt/var Optimization (IVVO) analysis
with multiple power system constraints
• Capacitor sequencing by defining capacitor
switching priority
• Single load factor and multiple load scaling
factor analysis
• Economical benefits for VVO analysis
• User-defined voltage profile charts and tabular
reports
Cooper Power Systems is committed to leverage utility CVR programs by improving energy supply through
efficiency. Our Volt-Var Optimization module is to be
released in the upcoming version of the CYME power
engineering software.
The CYME Volt-Var Optimization module is one of
the new applications that will be demonstrated at the
CYMDIST-CYMTCC Users Group next June.
About CYMDIST Server
CYMDIST Server is a complete Service Oriented
Architecture (SOA) solution which offers real-time
network analysis with powerful CYMDIST simulation
engines. Its superior calculation capability supports
a large number of concurrent and simultaneous
CYME International
1485 Roberval, Suite 104
St-Bruno, QC Canada J3V 3P8
P: 450.461.3655
F: 450.461.0966
P: 800.361.3627 (Canada and USA)
© 2012 Cooper Industries, Inc. All rights reserved.
simulations requests from various client applications
on a network , such as GIS, OMS or DMS.
Read more on our web site.
www.cyme.com | www.cooperpower.com
info@cyme.com