Step 8 Open the oil drain valve of the transformer and the valve of the oil storage bag,
and start the oil pump to start oil drain.
NO TE
1. The oil level begins to slowly decrease at the time of oil draining and finally drops to 0.
2. When the oil in the conservator is exhausted, the contact surface of transformer oil and
air can be seen through the gas relay observation window.
3. When the first oil storage bag is full of oil, stop oil draining, close the transformer oil
drain valve, and close the oil storage bag valve.
Smartkits
Guide to Transformer Low Voltage Bushing
Replacement (No Handhole Replacement)
3 Replacement Procedure
Issue 01 (2021-11-22)
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Ltd.
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