When the
transformer operates under special conditions, it should experience the special inspection which includes the following items：
（1） under the overload, it should monitor the changes of load, oil temperature, and oil level, the connection joints should be good, the wax disc tempil no melting phenomenon.cooling system operate normally.
（2） In windy weather, it should pay attention to the tightness, swing of the lead, and if there is foreign body on the
transformer or on the lead.
（3） In the lightning strom weather, it should pay attention to whether there is flashover or discharging phenomenon of the porcelain bushing, and to the duscharging record of the arrester.
（4）In the fog weather, it should check whether there is discharging or flashover phenomenon, especially the porcelain filthy part.
（5）In the snow weather, it should check the heat part of the joint according to the snow melting, and deal with the snow and ice slush promptly.
（6）After big short-circuit fault, it should check the relative equipment and the joint.
（7）After the alarm signal of the gas relay, it should check the external situation of the
transformer
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