GE Kelman DGA 900 Plus Installation & Commissioning Manual page 65

Figure 9-46. Without electrical contact, the installation must be aborted, and the original
test tap covers refitted.
Figure 9-46: AntScope measurement - AdaptorInstalled
Move the cursor over −45° or as close as possible as shown in Figure 9-47. The Cpar
(Capacitance parallel) will be the bushing capacitance stated on the nameplate (±
5%) or the last measured nominal value. In this example, the value is 550 pF as shown
in Figure 9-47.
Figure 9-47: AntScope measurement – AdaptorInstalled (with Cpar measurement)
Repeat all the RigExpert test steps in Section 9.8.2.2 for each Bushing Adaptor
installation on the transformer.
9.8.2.3 Bushing Nameplate Information
Record the bushing manufacturer nameplate information in Table 9-7: Results. For each
bushing record the:
▪
Serial Number
▪
PF%
▪
C1
MA-041 – DGA 900 Plus - Installation & Commissioning Manual - Rev 1.1 4-Mar-22 Page 65 of 99