Faults in the Auxiliary Equipments

Faults in the Auxiliary Equipments: These faults argon usually minor faults. They do not affect the transformer immediately but, if allowed to persist, these may cause reasonable fault to the transformer. So, before they cause any damage to transformer they must(prenominal) be detected and rectified. Following are the various faults in attachment equipments- 1. Oil Leakage in the Transformer Tank: If the ve foilable anoint color colour leaks from the transformer tank due to some reason, the oil aim in the tank drops, this impart increase the temperature of the windings, would damage the dissolving of the windings. consequently conservator tank is provided with an oil level power having an solicitude facility. If the oil level drops below a predetermine level, the warning signal will ring. It allows the operator to initiate needed actions. 2. Failure of public exposure system: The temperature of oil and windings will increase due to disappointment of the change system of the transformer. The cooling system may discover due to blocking of the radiator, melancholy of oil pumps or failure of some/all fans. So, an oil temperature power with alarm and trigger off facilities along with a winding temperature indicator having similar facilities are used to stave off damage to the transformer by overthaw. 3.

Weakening of insulation in the midst of Laminations of mall and core bolts: Weakening of insulation between core and core bolts will result in increase reel current losses and hence rise in the temperature of core. This may, consequently, p ost to the insulation failure of the winding! s. 4. Improper joints and connections: Local heating generated by improper joints or connections may slowly lead to a deterioration of the oil if joints are oil immersed. oil temperature indicator and winding temperature indicators are used to indicate such(prenominal) problems. 5. Inter- turn faults: If just few turns of any of the windings are shorted, the electric relays will not operate but the overheating caused by the fault...If you want to get a full essay, order it on our website: BestEssayCheap.com

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