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STS-(3000K, 6000K)-H1 Smart Transformer Station
(Spain, Eiffage Turroneros)
Installation Guide
Figure 2-7 Transformer
No.
Item
1
Dehydrating
breather
2
Oil surface
thermometer
3
Oil level gauge
4
Oil feed and drain
valve
5
Gas relay
Issue 02 (2020-02-21)
Function
-
Measures and controls
the temperature of the
top layer of
transformer oil.
Indicates the oil level.
Refills or drains oil.
Generates a gas
accumulation alarm or
an oil flow trip.
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Description
The insulation oil in the conservator is connected to
the atmosphere through a dehydrating breather with
silica gel to absorb moisture and impurities in the
air and maintain the performance of the insulation
oil.
Displays the top layer of transformer oil in real time
and issues alarms and trip signals through the
built-in temperature control switch.
Indicates the oil level of the transformer oil cabinet
and reports the alarms of high and low oil levels.
Oil refilling: Refill the transformer oil using an
uncontaminated metal or non-rubber hose and
oil injection equipment. (Note: Prevent air from
entering.)
Oil draining: Lead the transformer oil to a
container using an uncontaminated metal or
non-rubber hose.
When a minor fault occurs on the transformer,
the oil of the transformer generates gas. The gas
will rise and enter the gas relay. In this case, the
2 Product Overview
13
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