GE Kelman DGA 900 Plus - 10.3.1 Prerequisite Commissioning Steps

MA-041 – DGA 900 Plus - Installation & Commissioning Manual - Rev 1.1 4-Mar-22 Page 74 of 99
Table 10-2: OLTC files
Source
File
Purpose
Service Team
Commissioning_Document_v1.2
Spreadsheet tool required for
autogenerating the OLTC configuration
files.
Service Team
Models Configurator
Spreadsheet with reference values to
complete calculations.
Service Team /
Customer
TapPositionCalibration.cfg
Tap position map (manual mechanical
mappings)
Autogenerated
TapPositionCalibration.cfg
output OLTC configuration (tap position
map)
Autogenerated
OltcGroups.cfg
output OLTC configuration (sequence
groupings)
Autogenerated
OltcRefData.cfg
output OLTC configuration (profile
parameter reference per group)
10.3.1 Prerequisite Commissioning Steps
WARNING: The transformer must be de-energised / powered down before
beginning the commissioning process.
It is also recommended to perform the following prior to commissioning the product:
▪ Test Product Connection
▪ Disable motor torque alarms (if required)
10.3.1.1 Test Product Connection
On the computer, use the Perception software to connect with the DGA 900 Plus and
ensure that the downloaded CSV file contains no data.
1. In Perception Desktop, select File > New Database.
2. Type a meaningful name for the database e.g.
[DGA900_PLUS_SERIAL_NUMBER]_[DATE &
TIME]_COMMISSIONING_[CUSTOMER_NAME]
3. In the Asset Explorer, right click on the newly created database and select New >
DGA 900 Plus.
4. On the Properties tabbed page, enter the connection details.
5. If a successful connection is made, a green tick appears on the DGA 900 Plus icon
in the Asset Hierarchy as shown in Figure 10-3.
Figure 10-3: Successful connection to DGA 900 Plus
6. Right click the ‘DGA 900 Plus’ icon and select Download from the shortcut
menu.
7. On the Properties tabbed page, the Device Connection details should show the
State as ‘Connected’ and actively display the download in progress.