GE Kelman DGA 900 Plus Installation & Commissioning Manual page 66

▪
C2
▪
Temperature
If possible, photograph the bushing nameplates. The bushing nameplate images must be
stored with the field service installation report and the antenna analyser data.
Also record the following items in Table 9-7: Results:
▪
Bushing Adaptor ID.
▪
Phase that each MMTS has been fitted to during a three single phase installation.
9.8.2.4 Continuity Tests
Complete the following tests for each bushing installed and record the measurements in
Table 9-7: Results
Before commencing the tests, ensure that the Hub and Analysis enclosures
are earthed.
9.8.2.4.1 Shield to Ground Resistance Test
For each Bushing Adaptor input, test the continuity (resistance) between the coaxial
cable shield and the ground terminal inside the cabinet as shown in Figure 9-48. It should
be less than 5 Ω.
Record this measurement in Table 9-7: Results.
Figure 9-48: Resistance between cable shield and ground
9.8.2.4.2 Coaxial Cable Core and Shield Resistance Test
For each Bushing Adaptor, measure the resistance between the coaxial cable core and
the shield as shown in Figure 9-49.
MA-041 – DGA 900 Plus - Installation & Commissioning Manual - Rev 1.1 4-Mar-22 Page 66 of 99