14
Graphics
Name
Description
Oil level gauge
Indicate the level of stored oil in the transformer.
De-energized tap-
changer
Adjust the output voltage of the transformer.
Drain valve and
sampling valve
Drain the oil from the transformer into a container
through a clean hose.
Automatic pres-
sure relief valve
When a fault occurs inside the transformer, a large
amount of gas is generated, and the pressure of
the insulating oil rises sharply. This valve automati-
cally opens to drain the oil when the pressure
reaches the threshold, so that the internal pressure
of the transformer can be rapidly reduced to a nor-
mal value. And a signal is sent to trip the circuit
breaker.
Manual pressure
relief valve
Pull the ring to relieve the pressure if the pressure
inside the oil tank is high.
Oil injection valve
Replenish the transformer with oil through a clean
hose and oil filling equipment.
3 Product Description System Manual
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