ETMI provided a turn-key
IDD installation for the (3) single-phase GSU's at
the Rawhide Generating station.
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View of 230kv bushing tap adapter installation. |
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View of the installed conduit and bushing
tap adapter for the 25kV bushing within the ISO
phase bus duct. |
Top view of Domino and Hydran valves and sensors installed on the lower cooler
pipe.
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Front view of the Domino, Hydran,
and the communication converters for communication
to the IDD.
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 ETMI
installs IDD system on 3-phase Autotransformer.
This unit is an existing 230/115kV 150MVA with a tertiary.
The system is designed to monitor its (9) bushings. A Doble domino was installed
for moisture and oil temperature monitoring. A GE Hydran 201Ti sensor is used
for hydrogen gas detection. SCADA contact indication and dial tone was incorporated
for remote access. |
As found control cabinet layout.
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IDD unit installed on swing door with aux power panel mounted on side
wall for IDD and oil sensor power.
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View of 230kV side rigid conduit and seal tight conduit system for bushing tap connection.
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View of 115kV side conduit system.
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View of Tertiary side conduit
system.
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As found lower radiator pipe and flange assembly.
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Installation of 1" valve for Domino sensor and 1.5" valve for hydran sensor. |
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Overall oil sensor view with Domino display mounted on side of control cabinet. |
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