Figure 113: 3 Phases Test Setup For The Megger Tester - ABB UniGear Digital Commissioning And Testing Manual

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SE CO NDAR Y T EST S ETU P S
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
with combined sensor inputs and the tester. The test adapter is usually connected to the pro-
tection relay through ESSAILEC
RJ45 connectors. If the ESSAILEC
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
72
SE CO NDAR Y T ES T ING O F PR OT E CT IO N R E LAYS
®
test blocks via connecting shielded cables terminated with
®
test blocks are not installed then the test adapter is con-
maximal simulated current 21.3 kA, 50/60 Hz
®
615/620 series fitted
1 VLG 5000 17 C

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