Explain the function of Buchholz relay, why this relay is so important to be used on high rating transformer.
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Explain the function of Buchholz relay, why this relay is so important to be used on high rating transformer.
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- 3. Why the copper loss in the primary can be neglected, in the open circuit test? 4. Why the terms Rm and Xm significant when the transformer is loaded?What is the basic functions of transformer? What is short circuit test ?2. What measures are taken for cooling of the transformer? How can you overcome the effect of initial current inrush in a transformer?
- What are the advantages and disadvantages of back to back test on two similar single phase transformer?Figure 5 shows the core of a Linear Variable Differential Transformer (LVDT). S, S2 CORE Figure 5 Explain what happens when the core is at its maximum left, null and maximum right positions.Discuss the relationship between the operating frequency and the transformer size? Through your engineering studies