GE NBVllA Series Instructions Manual page 21

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LEGEND
27
IAVS�E UMDERVOLTAGE
RELAY
52
CIRCUIT BREAKER
60
RBVIIA VOLTAGE-
8AUIICE REUY
6? lUiJl VOLTA6E REU
JE-27 AUX. P.T
C.A. T. NO. 760X0�0 003
1
T&SI TARGET SEAL-IN
T.D.C. TIME DELAY CLOS
lNG
F RA�IC FILTER
OtS5AS78 8
Figure 12 (0459A0253 Sh.l [4])
GEI-50261
2
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POWER TRANSFORMER
PT' S
USE fiTHER
--+3
AS SfiOWII
-
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= , 1
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PT'S
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Typical External Connections for Type NBVllA
IF USED
2
PT'S
/
WHEII
USED
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r-
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o 'F
,_ .J
-
I
USE
TO TRIP
7 5
UNDER­
VOLTAGE
TRIPPING
I
Is
MISSIBLE
Relay
21
FUSES
IF U.f£D
I : I
RATIO
T.D.C.
USE
OR TO
OR
' VOLTAGE
PER­
I
TRIPPING
i
IS NOT
PERMISSIBLE
·
AUX.
P T .