Circuit‑Breaker Test
i
i
NOTE
Siemens recommends isolating the circuit‑breaker of the tested feeder at both ends before starting the
tests. Line disconnector switches and busbar disconnector switches must be open so that the
circuit‑breaker can be operated without risk.
The circuit‑breaker tripping operation should be tested from a protection trip to ensure that all connections
are made and function completely.
Manual circuit‑breaker open and close operations should also be tested. The correct operation of status signals
from circuit‑breaker auxiliary contacts should be checked during these tests.
Autoreclose configuration should be tested to confirm timing, sequences and other settings.
Correct operation of auxiliary contact signals may be required for correct operation of the relay.
Correct voltage levels and synchronizing conditions may be required for correct closing sequence operations.
Operating modes of the relay and interlocking logic can block plant operating commands. This should be
investigated if undesirable behavior occurs but the correct operation of such signals should also be checked.
Circuit‑breaker status is displayed in the
Control Mode
menu and can be configured on a mimic diagram.
Binary input state and autoreclose sequence state is displayed in the device instruments.
Trip and Lockout
and
Trip and Reclose
input points are provided for circuit‑breaker testing
purposes. Circuit‑breaker operation time is displayed in the maintenance meter instruments and should be
checked during testing.
9.6
Functional Tests
9.6 Circuit‑Breaker Test
Reyrolle 7SR5, Transformer Protection Device, Device Manual
413
C53000-G7040-C015-1, Edition 11.2019
Содержание Reyrolle 7SR5
Страница 8: ...8 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...
Страница 24: ...24 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...
Страница 132: ...132 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...
Страница 142: ...142 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...
Страница 338: ...338 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...