COMMISSIONING AND TESTING GUIDE 39
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80
—
81
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80 Phasor diagram
on the protection
relay’s WebHMI
—
81 Measurements view
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82 3 phases test setup
for the Megger tester
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 protection
relay through FT-14D test switches via connecting
shielded cables terminated with RJ45 connectors.
If the FT-14D test switches are not installed then
the test adapter is connected directly to the
protection relay via connecting shielded cables
terminated with RJ45 connectors.
Maximum low-level output from the Megger
tester is 40 V at 50/60 Hz
• 80 A/0.180 V maximal simulated current 21.3
kA, 50/60 Hz
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82
Tripping contact
FT-14 D
test switch
Circuit breaker
open, auxiliary
NO contact
Stop timer
Trip command
Test adapter
Tester
86MO
Low voltage compartment of
switchgear panel
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