Electric Energy T&D - Index

Electric Energy T&D - EE Magazine March / April - Index

The solutions are flexible and can be integrated
via DNP3 with existing SCADA equipment or can
be provided with a complete SCADA system.
Solutions are tailored to meet the customer’s
needs and budgets and are scalable so
they are at home in small REC as well as in
IOU networks.
The NME range of pole switch solutions has
both linear and torsional motor operators
with a suite of power options. Further options
allow for high or medium speed operating
times depending on the requirements of the
air break switch and the environment.
The NMS range of pad mounted switch
solutions provides a remote operator unit
to control from 1 to 9 switches at the same
location. The NME is designed to work
with motor packs provided by the switch
manufacturer, and if none are available
Radius can provide retrofit motor packs for
most switch types.
Both the NME and the NMS units come
with a simple and easy to use operator’s
panel, which clearly indicates the switch
status as well as the health of the supply
voltage, battery charging system and the
battery. Sophisticated battery management
ensures reliable operation while ensuring the
minimum service requirements. The batteries
are also tested regularly with a configurable
time setting and any errors are displayed
locally and reported back through SCADA.
Safety is paramount and the operator has
the comfort of knowing that they can test the
integrity of the battery prior to making a local
operation. But for complete safety the units
all have a ‘hit & run’ function that allows
the operator to move to a safe distance after
initiating a local operation. An audible alarm
informs the operator that that a local control
is activated.
The Radius Group has always been at the
forefront of Distribution Automation and
have the knowledge and the products to
provide customers with wide area data
communication solutions to ensure all of
their remote equipment is within reach. Each
NetMan unit has the option for a variety of
communication solutions, however most
customers prefer to use the Radius wide area
digital data modems due to its speed, cost
and performance.
Radius also provides after market fault
passage indicators which integrate into the
Radius units in order to provide overcurrent,
earth and sensitive earth fault information.
As well as the remote sites Radius has been
providing central control units (CCUs) with
the option for a touch screen MMI’s and
automatic restoration logic. The CCU can be
used as an ‘entry level’ SCADA solution or a
second tier of control/indication if a SCADA
system already exists.
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VANCOUVER - February 2008
Tavrida Electric is pleased to announce
the opening of its first North American
office located in Delta, BC, Canada. The
Delta office will provide sales, engineering
support, development and manufacturing
for Tavrida’s industry leading reclosers and
vacuum circuit breakers.
Founded in 199 , Tavrida Electric pioneered
the development of magnetic actuator
technology for its vacuum circuit breakers.
Tavrida is now a major market player and has
over the last fifteen years perfected medium
voltage breakers to the point of having the
smallest footprint and highest reliability in
the industry today.
14 I March-April 2008 Issue
VACUUM CIRCUIT BREAKERS
Most customers unfamiliar with Tavrida
products are stunned by how compact the
breakers are. Covering a range from 4 kV
to 7 kV, the total dimensions of the
breakers can be less than a third of
comparable units on the market. This makes
them equally suited to both new switchgear
and retrofit applications.
Certified to a minimum of 50,000 full load
close open cycles, with no maintenance
for the entire 5 year expected lifespan,
Tavrida breakers are solving space and
lifecycle cost issues faced by switchgear
engineers worldwide.
RECLOSERS
Leveraging their vacuum breaker technology,
Tavrida began developing reclosers several years
ago in the 15.5 kV and 7 kV voltage classes.
Once again eschewing conventional
designs, Tavrida reclosers are extremely
compact, lightweight, and highly reliable
with up to 30,000 full load operations.
Comprised of an aluminum dead tank with a
modified Tavrida breaker, the designers have
innovated the placement of non-saturable
Rogowski coils and six voltage sensors
while keeping the tank itself free of any
encumbering electronics.
Tavrida’s unique products will be on display
at the IEEE Conference in Chicago. Contact
them at booth # 186 for a demonstration if
you will be attending, or info@tavrida-na.com,
www.tavrida-na.com
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