SE CO ND AR Y T EST S ETU P S SE CO ND AR Y T EST ING O F PR OT E CT IO N R E LAYS
72 1VLG5 00 0 17 C
Test Setup for Megger – 3 phases
FREJA 546 (Low Level Output Hardware option) is interconnected with a Low-level test
adapter. The test adapter provides the interface between ABB’s Relion
®
615/620 series fitted
with combined sensor inputs and the tester. The test adapter is usually connected to the pro-
tection relay through ESSAILEC
®
test blocks via connecting shielded cables terminated with
RJ45 connectors. If the ESSAILEC
®
test blocks are not installed then the test adapter is con-
nected directly to the protection relay via connecting shielded cables terminated with RJ45
connectors.
Figure 113: 3 phases test setup for the Megger tester
Maximal low-level output from the Megger tester is 40 V at 50/60 Hz
– 80 A/0.150 V maximal simulated current 21.3 kA, 50/60 Hz
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