The Possible Risks Associated With A Transformer - Miracle Electronics

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Despite the fact that transformers have been
around for nearly a century, there still are
seen multiple kinds of transformer failures,
which can arise at any point of time. Even if
utmost care is taken during the manufacturing,
installing, and operation of the transformer,
there are possibilities of failures and risks.
After all, transformers are electrical devices
that can be controlled only to a certain extent.
Risks involved with a transformer Transformer
risks can come in many different forms. Some
failures may not be due to any components within
the transformer, but from an external incident
like a lightning strike or fault in the
transformer power line. Then, for those failures
that come up within the transformer, some may
come up without a warning, but then there are
times when failures can also be seen to be
approaching. For instance, deteriorating paper
and oil inside a transformer can emit gases. When
the paper in the transformer ages, it releases
Furan gases, which are organic compounds that
are formed by the degradation of paper
insulation. Overheating, oxidation, or
degradation by high moisture content contributes
to the destruction of insulation, forming
furanic compounds. However, a transformer with
well-
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• maintained dielectric fluid is much less likely
  to fail than one that hasnt been maintained at
  all.
• Can such transformer failures be avoided?
• We already said above that it is not possible to
  completely eliminate the possibilities of a
  transformer failure. But, it can be reduced by
  building a transformer with the best quality raw
  materials and using quality controlled
  processes. There is a lot that goes into
  maintaining a transformer. In order to get safe,
  reliable, and uninterrupted electrical power,
  there is a lot that can be done. For instance,
• One of the basic process is chemical testing that
  tests the oils present within the transformer.
  Occasional oil processing may be required to
  remove harmful contaminants.
• It is important to develop a reliable system that
  can address the condition of
• the transformer without a lot of added costs or
  downtime during the life of the unit, and not at
  the end of its life. But, this is all about
  assessment, planning, and systems.
• High moisture content, overheating, or
  oxidation are also significantly
• important to cause failure, which can be
  identified by the accelerated deterioration of
  the paper insulation.
• Gases dissolve in the transformer oil, and are
  formed by both normal operation
• and aging, or also by anomalies or abnormal
  events. Analyzing the volume, types,
  proportions, and rate of production of dissolved
  gases, whats happening within the transformer
  can be known. Gases can be produced by
  oxidation, oil breakdown, vapourization,
  insulation decomposition, and electrolytic
  action.
• Understanding the short and long term, direct and
  indirect impact and costs associated with
  unplanned power outages that result from the loss
  of the
• transformer
• Developing and implementing a set of standards
  for determining the operating condition of the
  transformer through intrusive and non-intrusive
  testing
• Developing a company-wide preventative
  maintenance plan, and giving reliability
  professionals the tools that they need to monitor
  and maintain, as per the plan
• Transformers built today are certainly built with
  much smaller margin for error than those in the
  past by taking into consideration the above
  measures and

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methods. Miracle Electronics is one such expert
transformer manufacturer in India who takes into
consideration everything from the raw material
quality and quality of manufacturing processes
to the testing at every phase of production, and
also after production thus making it a reliable
manufacturer .