GE Kelman DGA 900 Plus Installation & Commissioning Manual page 16

Table 5-1 lists all the permutations for the four cards in the three slots.
Table 5-1: DGA 900 Plus card options
Slot 1
Default Card
Thermal Models
Thermal Models
Default Card
Thermal Models
Thermal Models
Default Card
Default Card
Thermal Models
Thermal Models
Thermal Models
The default card refers to the DGA 900 I/O PCB card as described in the standard DGA
900 Installation Manual.
The required sensors must be installed as per the standard common input sensors (4-20
mA, RTD and/or CT). The I/O PCB has six analogue inputs as standard (five of which are
customer configurable) and three digital inputs. The final configuration for each board is
different depending on the option packs chosen. A label on the PCB faceplate indicates
the final configuration. All sensors are supplied as part of the package (unless otherwise
requested/stated).
The product is supplied with factory default settings for all parameters, e.g. alarm
thresholds. For optimal performance, specific settings are required for each installation
and for the OLTC and Bushings monitors, precise commissioning steps must be followed
as defined in Section 10.3 and Section 10.4 respectively. For all other operational details
relating to the software interface for configuration, bushing settings, data readings and
alarms, refer to the 'MA-040 – DGA 900 Plus – Operator Guide'.
Note: The Analysis module is dedicated to dissolved gas analysis as outlined in 'MA-
024 - DGA 900 Installation Manual' & 'MA-025 - DGA 900 Operator Guide'.
MA-041 – DGA 900 Plus - Installation & Commissioning Manual - Rev 1.1
Slot 2 Slot 3
- -
- -
Cooling Status -
- Bushing Monitor
- Bushing Monitor
Cooling Status Bushing Monitor
OLTC Monitor Bushing Monitor
OLTC Monitor -
OLTC Monitor -
OLTC Monitor Bushing Monitor
Cooling Status OLTC Monitor
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