Vaisala Optimus OPT100, Руководство по установке

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Figure 1 Possible locations of oil connections
1 Oil reservoir. Do not use.
2 Side of the oil tank, top level. Suitable location for oil connection if the valve is under oil
level at all times.
3 Side of the oil tank, high enough from the bottom to enable proper oil movement. Suitable
location for oil connection.
4 Radiator and its pipes. Suitable location if there is guaranteed continuous oil flow in the
radiator. Not recommended if there is no forced circulation or circulation is not continuous.
5 Drain valve of the oil tank. Not recommended due to risk of sludge and free water.
Measurement from the bottom of the tank is also not representative for moisture
measurement.
Operate the selected valves and make sure the oil is clean with no
sludge or free water present.
CAUTION!
DGA monitor needs to pump oil in both directions during initialization and
maintenance. To make sure this is possible, check that:
• Intake and return valves are both below oil level in the transformer. There
should be no risk of drawing gas into the oil lines even when the flow is
reversed.
• There are no flow direction control valves on the oil lines.
More information
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Installing oil lines with flexible hoses (page 35)
Chapter 2 – Planning the installation
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