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Transformer Bushings are specially designed electrical terminals for taking out winding ends (leads) through the openings provided on the top cover or wall of the of transformer tank and connecting to the incoming and outgoing lines.

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What is the function bushes in transformer?

A bushing is a hollow insulator, through which a conductor passes. Bushings are used to provide a external/internal connection in a transformer, circuit breaker, etc.


What is the function of fans in transformer?

The function of fans in a transformer is to regulate the transformer's temperature.


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The basic function of a transformer is to change voltage levels.


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The function of the radiator ban in a transformer is to cool the transformer oil.


How many bushing do you get on delta to star transformer?

Your use of the word "bushings" implies you are dealing with a high-voltage transformer (over 600 volt). A three phase STEP-DOWN transformer normally has 3 bushings on the Primary side regardless of whether it is star-delta or another type. The Secondary side might have 3 or 4. A single phase transformer normally has 2 bushings on the Primary side and 2 or 3 on the Secondary side. If the transformer is being used to STEP-UP, it would be reversed from above. If this does not answer your question, I need more info.


How can you identify which one is step up or step down transformer?

A transformer has two windings, termed the 'primary winding' and the 'secondary winding'. The primary winding is the winding connected to the supply, while the secondary winding is connected to the load. The secondary voltage of a 'step up' transformer is higher than the primary voltage; the secondary voltage of a 'step down' transformer is lower than the primary voltage. The simplest way to determine whether a transformer is a step up or step down, is to measure the primary and secondary voltages. If you are simply looking at a transformer, then the transformer's insulated bushings will give you a clue -the higher voltage bushings are much bigger than the lower voltage bushings. If you have access to the inside of the transformer, then the higher voltage windings are thinner and have a greater number of turns than the lower-voltage winding.


What is the function of askerals in a transformer?

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How you using ref relay in transformer?

an REF relay (restricted earth fault) is used to provide ground fault protection for a transformer. Its' operation is limited by CTs starred towards the transformer (usually on the transformer bushings or in breakers used to isolate the transformer), so it will only operate for transformer related faults. Because of this, it can be set to operate very quickly.


Will REF protect the outgoing cables when the Ct's are fitted at the transformer?

REF protection, when installed and set correctly, will protect everything within the CT's. If the CTs are on breakers, then yes, the cables from the transformer to the breakers will be in the zone of protection. If the CTs used are in the bushings of the transformer, then no.


How do you produce a step-up transformer in an ordinary transformer?

Transformer function is either to step-up or down the voltage. There is nothing like an ordinary transformer.


What is the purpose of the transformer in the half-wave rectifier circuit?

what is the function of transformer in the half wave rectifier circuit


What are high voltage bushings?

A BUSHING IS A DEVICE USED TO CARRY CURRENT AT HIGH POTENTIALS THROUGH GROUNDED BARRIERS. EXAMPLE: A TRANSFORMER TANKVARIOUS BUSHINGS AVAILABLE ARE, # OIL IMPREGNATED PAPER(OIP) BUSHING # RESIN IMPREGNATED PAPER(RIP) BUSHING