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Machines are playing a vital role in the life of human beings. Ranging from small and large we have today innumerable machines to make our life easy. These machines and equipments are considered as a helping hand of man. These machines once purchased don’t demand anything from its users except the maintenance and servicing. Servicing is necessary at a regular period of time to ensure the smooth run of any device or equipment while the maintenance can be done if and only if the user is familiar with the causes of failure of the machines.

Just like the other industries , Electronic industry has also bestowed people with a lot of equipments and devices to accomplish many tasks. These devices are variac, online UPS, stabilizers etc. One of them is transformers which are used to supply the power from one circuit to another to fulfill the requirements of different machines it is attached with. These transformers are available in different sizes and types to suit the requirements of all sorts of machines. These are considered to be the heart of power systems.

At the homes also , the electricity we use reaches to us by transforming from the transformers. These are generally responsible for power delivery and the integrity of power system network as a whole. Like other machines transformer also has operating limits and these have to be keep in mind for transformer protection from failure. Except this there are many other reasons for its failure. Below mentioned is a list of few of them followed by a list of tips for protection:

Reasons of Failure

Overloading- Overloading of power is the main cause of transformer failure.

Loose Connections- Improper mating of dissimilar metals, loose connections, improper torquing of bolted connections can also lead to transformer failure.

Improper Operation and Maintenance- One of the main cause may be improper operation and maintenance of it. It incorporates loss of coolant , improperly set controls, accumulation of oil, dust and corrosion etc.

Design and Manufacturing- If the transformer is not designed and manufactured properly by the distribution transformer manufacturer then also it can lead to failure.

Tips for Protection

Installation- Once the transformer is installed the tank must be permanently ground.

Climatic Restrictions- Access should be restricted to its liquid filled area in the conditions of rain and excessive humidity. If such humidity exceeds 70 percent then pump the dry air into it.

Gas Pressurizing- Sufficient gas pressure must be maintained to allow pressure of 1 psi to 2 psi at all the times independent of temperature.
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gsnoopy520, 26.09.2018 08:38
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