Faults in the Auxiliary Equipments

Faults in the Auxiliary Equipments: These faults argon usually minor faults. They do non affect the transformer immediately but, if allowed to persist, these may cause v index fingery 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 addition equipments- 1. Oil Leakage in the Transformer Tank: If the ve chafeable crude crude colour leaks from the transformer tank due to some reason, the oil take aim in the tank drops, this leave alone increase the temperature of the windings, would damage the looseness of the windings. consequently conservator tank is provided with an oil level indication having an solicitude facility. If the oil level drops below a mold level, the warning signal will ring. It allows the operator to initiate indispensable actions. 2. Failure of public exposure system: The temperature of oil and windings will increase due to disappointment of the cool down system of the transformer. The cooling system may discover due to blocking of the radiator, ruefulness of oil pumps or failure of some/all fans. So, an oil temperature indicator with alarm and trigger off facilities along with a winding temperature indicator having similar facilities are used to neutralize damage to the transformer by overthaw. 3.

Weakening of insulation in the thick of Laminations of internality and core bolts: Weakening of insulation between core and core bolts will result in increase tumble current losses and hence rise in the temperature of core. T his may, consequently, answer to the insul! ation failure of the windings. 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 exclusively 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: OrderCustomPaper.com

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