Siemens Transformers
React rapidly to emergencies
Mobile resiliency transformers
Take security to the max
In every official building you will find fire detectors – and
fire extinguishers. For transformers, monitoring systems
act as the fire detectors – but where’s the fire extinguisher
in case of a real emergency? With mobile resiliency transformers, Siemens Transformers – renowned for cuttingedge innovations – has taken resiliency one step further.
Tailor-made products for individual needs
Nearly every power transformer is a tailor-made product –
designed for a precise performance within a clearly defined setting of an electricity grid. Although mobile resiliency transformers combine three main features that define this product, each and every single solution is perfectly coordinated to fit best to the grid it is destined for.
Our new product is designed and manufactured to enable
our customers to react rapidly to any kind of outage. They
combine three characteristics that are of uttermost importance when an emergency scenario needs to be faced:
When developing this innovative product line, our transformer experts listened very closely to our customers and
their needs. We have understood their biggest concerns to
define the most important features of the product. But
they also were focused on additional benefits that might
be of value for certain customers.
1. Mobile
They are very compact and lightweight and thus can be
transported to wherever they are needed within a very
short timeframe – sometimes even without the need
for a transport approval.
2. Versatile
Another aim was to save our customers money by not
having to invest in many of these units. This is why our
mobile resiliency transformers are versatile and each is
designed to cover multiple ratings.
3. Rapid installation:
To allow replacement as rapidly as possible, we employ
several innovative solutions: oil-filled shipping, plug-in
bushings, and plug & play cable connections are used.
This ensures installation can be done by the utility-staff
within 96 hours of original unit failure.
Mobile Resiliency Transformers as timesavers
a few seconds
might lead to an emergency
1 day
installation of mobile resiliency unit
3 days
transport a mobile resiliency unit
1-12 months
Typical timeframe for the use of a mobile
resiliency unit
to manufacture a power transformer
9-12 months
Be prepared for the case of an emergency
This is why there are a lot of additional features that can
also be used in mobile resiliency units, to ensure the best
solution is designed and manufactured to fit our customers’ needs. For example, it is possible to fill mobile resiliency units with ester instead of mineral oil – for higher environmental security and improved fire safety. Another possibility to further prevent a mobile resiliency unit from
damage is to build it as a tank rupture optimized unit.
As a transformer manufacturer that combines more than a
hundred years of experience with being first in driving
innovations, our customers rely on our expertise: We know
the settings and conditions our transformers are located in
and the performance they need to deliver to secure reliability and stability of the grid – no matter if this is in rural
areas with long transmission lines and widespread population, or in crowded megacities.
www.siemens.com/transformer-resiliency
With mobile resiliency units bushing installation does not need to take as long as in this picture.
Technical features
1. Keeping an extra-high-voltage transformer mobile
Size and weight are key factors when is comes to transporting a power transformer. This is why our mobile resiliency units are built as 1-phase-units. Depending on the
customer requirements, they can be lifted on a truck with
either all or only part of the insulation fluid being kept
inside the tank. There is also another advantage of an oilfilled installation: oil-handling when installing the units on
site can be eliminated, which saves extra time. The dimensions and weight restrictions can be adapted to the local
transportation standards and often can also be reducedto
a level that special transportation approvals/permits are
not necessary.
2. Installation as fast as it gets
Installation of large power transformers is usually done by
specialized installation teams and often takes 10 days or
more to complete. However, in emergency situations it is
crucial to get back to normal grid operation as fast as possible. This is why mobile resiliency units are equipped with
plug-in silicone-shielded bushings. This means they can be
connected without draining the main tank. The transformer can also be moved with the bushing installed. Plug-in
connectors and cables ensure that the units can be connected to the grid within one day on site.
3. One fits (nearly) all: versatility
For a perfect redundancy concept in terms of power transformers, one used to think that each and every unit would
need a spare for emergency cases. As mobile resiliency
units are versatile, they can be installed in several, predefined sites to restore the grid very easily and rapidly.
When different ratings can be covered with just one mobile resiliency unit, this reduces investment cost and storage and logistical efforts.
4. Additional features
Mobile resiliency untis being a tailormade product, there
are several additional features that can be useful for this
kind of product. They can be filled with ester as well as
with mineral-oil or designed as tank-rupture optimized
units. Depending on the installation site, connections with
long cables are also possible, just as special tank designs
with a stainless-steel baseplate to protect from rough undergrounds like broken rocks.
Comprehensive portfolio
Mobile resiliency transformers are the key innovation to
pave the way to a resilient grid. However, Siemens Transformers offers a comprehensive portfolio of products and
services for a substantial resiliency strategy. It consists of
means to prevent existing assets from operational risks by
sustainable transformer service, just as well as protect
new equipment against vandalism and excessive heat. And
even if all precautions might fail, mobile resiliency units
give you an option to react rapidly to keep the energy
world going in your area.
How can we help you to ensure grid resilience?
Our portfolio for grid resilience comprises service like
condition monitoring and TLM, bullet resistant as well
as GIC-safe solutions and mobile resiliency transformers – your assurance for the case of emergency. Contact us if one of the following thoughts crossed your
mind lately:
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What happens if the next storm / hurricane strikes
our substation?
I do not want to be the target of some physical
attack leading to an outage.
I would like to buy spare units, but do not want to
invest in several different transformers for that.
I need a versatile power transformer.
I need a solution that is easily transportable and
quick to install.
My company would like to have an ace up the
sleeve for the case of emergency.
Talk to us! We care about the resiliency of your grid as
much as you do!
Editor and Copyright © 2015:
Siemens AG
Energy Management Division
Freyeslebenstraße 1
91058 Erlangen, Germany
© 04.2015, Siemens AG
Siemens AG
Transformers
Katzwangerstraße 150
90461 Nürnberg
www.siemens.com/transformer-resiliency