GE Multilin G650 Manual page 307

Generator protection & control system
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6.2 STATUS
6.2.4.3 BREAKER FAILURE(ENHANCED MODELS ONLY)
This screen can be accessed at Actual> Status > Control Elements > Breaker Failure, and it includes the following
signaling LEDs for the breaker failure function:
Table 6–15: BREAKER FAILURE ACTUAL VALUES
BKR FAIL INITIATE
BKR FAIL NO CURRENT Signal for breaker failure without current
BKR FAIL SUPERVISION Signal for supervision level breaker failure (retrip)
BKR FAIL HISET
BKR FAIL LOWSET
INTERNAL ARC
BKR FAIL 2nd STEP
6.2.4.4 VT FUSE FAILURE(ENHANCED MODELS ONLY)
This screen can be accessed at Actual> Status > Control Elements >VT Fuse Failure, and it includes only one LEDs for
the VT fuse failure function, indicating the activation of the unit.
Table 6–16: VT FUSE FAILURE ACTUAL VALUES
6
6.2.4.5 SETTING GROUPS
This screen can be accessed at Actual> Status > Control Elements > Setting Groups, and it includes activation and
block signals for the relay setting groups change in the following signaling LEDs:
Table 6–17: SETTING GROUP ACTUAL VALUES
6.2.4.6 PULSE COUNTERS
G650 units incorporate eight pulse counters. For each of them there are two magnitudes: the actual value and the freeze
value.
This screen shows the activation of all pulse counters available in the G650. It can be accessed from the menu:
Actual> Status > Control Elements > Pulse counters, and it includes the following values.
6-14
BREAKER FAILURE ACTUAL VALUES
BKR FAIL INITIATE
BKR FAIL NO CURRENT
BKR FAIL SUPERVISION
BKR FAIL HISET
BKR FAIL LOWSET
INTERNAL ARC
BKR FAIL 2nd STEP
External signal for breaker failure initiation. (configurable at Settings> Relay Configuration >
Protection Elements).
Signal for high-level breaker failure
Signal for low-level breaker failure
Signal for internal arc
Signal for Second level breaker failure (high and low)
VT FUSE FAILURE ACTUAL VALUES
VT FUSE FAILURE
SETTING GROUPS ACTUAL VALUES
GROUP 1 ACT ON
GROUP 2 ACT ON
GROUP 3 ACT ON
GROUP 1 BLOCKED
GROUP 2 BLOCKED
GROUP 3 BLOCKED
G650 Generator Protection & Control System
6 ACTUAL VALUES
GEK-113285A

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