iv
I.L. 40-386.3
LIST OF FIGURES
PAGE
S
ECTION
1
REL 301/302 R
ELAY
A
SSEMBLY IN
FT-42 C
ASE
(
PHOTO
). . . . . . . . . . . . . . . . . . . . 1-1
REL 301/302 L
AYOUT
(V
ERTICAL
) (
SHEET
1
OF
2) . . . . . . . . . . . . . . . . . . . . . . . 1-10
REL 301/302 L
AYOUT
(H
ORIZONTAL
) (
SHEET
2
OF
2 . . . . . . . . . . . . . . . . . . . . . . 1-11
REL 301/302 O
UTER
C
HASSIS
(
PHOTO
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
REL 301/302 I
NNER
C
HASSIS
(
PHOTO
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
REL 301/302 R
ELAY
P
ROGRAM
F
UNCTIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
S
ECTION
2
REL 301/302 C
HARACTERISTICS
/R-X D
IAGRAM
. . . . . . . . . . . . . . . . . . . . . . . . 2-23
M
HO
C
HARACTERISTIC FOR
P
HASE
-G
ROUND
F
AULTS
. . . . . . . . . . . . . . . . . . . . . . . 2-24
M
HO
C
HARACTERISTICS FOR
T
HREE
-P
HASE
F
AULTS
(N
O
L
OAD
F
LOW
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
M
HO
C
HARACTERISTICS FOR
P
HASE
-
TO
-P
HASE AND
T
WO
P
HASE
-
TO
-G
ROUND
F
AULTS
(N
O
L
OAD
F
LOW
). . . . . . . . . . . . . . . . . . . . . . . . 2-25
L
OGIC
D
RAWING
S
YMBOLS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
REL 301/302 Z
ONE
- 1 T
RIP
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
REL 301/302 Z
ONE
- 2 T
RIP
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
REL 301/302 Z
ONE
- 3 T
RIP
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
REL 301/302 Z
ONE
- 1 E
XTENSION
S
CHEME
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
I
NVERSE
T
IME
O
VERCURRENT
G
ROUND
B
ACKUP
L
OGIC
. . . . . . . . . . . . . . . . . . . . . 2-29
L
OSS
-
OF
-P
OTENTIAL
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
L
OSS
-
OF
-P
OTENTIAL
L
OGIC
(S
YSTEM
D
IAGRAM
) . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
L
OSS OF
C
URRENT
M
ONITORING
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
O
VERCURRENT
S
UPERVISION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
I
NSTANTANEOUS
O
VERCURRENT
H
IGHSET
T
RIP
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . 2-31
REL 301/302 C
LOSE
-I
NTO
- F
AULT
T
RIP
(CIFT) L
OGIC
. . . . . . . . . . . . . . . . . . . . 2-32
REL 301/302 U
NEQUAL
-P
OLE
-C
LOSING
L
OAD
P
ICKUP
T
RIP
L
OGIC
. . . . . . . . . . . . 2-32
L
OAD
L
OSS
A
CCELERATED
T
RIP
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
O
UT
-
OF
-S
TEP
B
LOCK
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
O
UT
-
OF
-S
TEP
B
LOCK
L
OGIC
(B
LINDER
C
HARACTERISTICS
) . . . . . . . . . . . . . . . . . . . 2-33
R
ECLOSING
I
NITIATION
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
POTT/U
NBLOCKING
P
ILOT
R
ELAY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
POTT/U
NBLOCKING
P
ILOT
T
RIP
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
C
ARRIER
K
EYING
/R
ECEIVING
L
OGIC IN
POTT/U
NBLOCKING
S
CHEMES
. . . . . . . . . . 2-35
PUTT S
CHEME
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
B
LOCKING
S
YSTEM
L
OGIC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
PLTG S
UPPLEMENTED BY
FDOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
R
EVERSED
P
OWER ON
POTT/U
NBLOCKING
S
CHEMES
. . . . . . . . . . . . . . . . . . . . . . 2-37
U
NEQUAL
P
OLE
C
LOSING ON
F
AULT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
A
DDITIONAL
L
OGIC FOR
POTT/U
NBLOCKING
S
CHEMES
ON
3-T
ERMINAL
L
INE
A
PPLICATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
A
DDITIONAL
L
OGIC FOR
PUTT S
CHEME ON
3-T
ERMINAL
L
INE
A
PPLICATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
W
EAKFEED
A
PPLICATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
R
EVERSIBLE
Z
ONE
- 3 P
HASE AND
G
ROUND
(R
EVERSE
B
LOCK
L
OGIC
) . . . . . . . . . . . 2-40
CO-2 C
URVE
C
HARACTERISTICS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
CO-5 C
URVE
C
HARACTERISTICS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42
CO-6 C
URVE
C
HARACTERISTICS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
Summary of Contents for REL 301
Page 1: ......
Page 8: ......
Page 17: ...I L 40 386 3 1 10 10 94 2682F39 Sheet 1 of 2 Sub 2 Figure 1 2 REL 301 302 Layout Vertical...
Page 18: ...I L 40 386 3 10 94 1 11 2682F39 Sheet 2 of 2 Sub 2 Figure 1 3 REL 301 302 Layout Horizontal...
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Page 62: ...I L 40 386 3 10 94 2 41 Figure 2 32 CO 2 Curve Characteristics 619596 Sub 2...
Page 63: ...I L 40 386 3 2 42 10 94 Figure 2 33 CO 5 Curve Characteristic 619597 Sub 2...
Page 64: ...I L 40 386 3 10 94 2 43 Figure 2 34 CO 6 Curve Characteristic 619598 Sub 2...
Page 65: ...I L 40 386 3 2 44 10 94 Figure 2 35 CO 7 Curve Characteristic 619599 Sub 2...
Page 66: ...I L 40 386 3 10 94 2 45 Figure 2 36 CO 8 Curve Characteristic 619600 Sub 2...
Page 67: ...I L 40 386 3 2 46 10 94 Figure 2 37 CO 9 Curve Characteristic 619601 Sub 2...
Page 68: ...I L 40 386 3 10 94 2 47 Figure 2 38 CO 11 Curve Characteristic 619602 Sub 2...