Sel SEL-451-5, Руководство пользователя

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SEL-451 Data Sheet Schweitzer Engineering Laboratories, Inc.
8
The operator can see all valuable information on a bay
before making a critical control decision. Programmable
interlocks help prevent operators from incorrectly open-
ing or closing switches or breakers. The SEL-451 will
not only prevent the operator from making an incorrect
control decision, but can notify and/or alarm when an
incorrect operation is initiated.
Circuit Breaker Operations From
the Front Panel
Figure 6 through Figure 9 are examples of some of the
many selectable one-line diagrams in the SEL-451. The
one-line diagram is selectable from the Bay settings.
Additional settings for defining labels and analog quanti-
ties are also found in the Bay settings. One-line diagrams
are composed of the following:
➤
Bay Names and Bay Labels (Bay Labels available
in one-line diagrams 14, 17, 18, and 23. All other
one-line diagrams use the Bay Name.)
➤
Busbar and Busbar Labels
➤
Breaker and Breaker Labels
➤
Disconnect Switches and Disconnect Switch Labels
➤
Analog Display Points
Figure 10 shows the Breaker Control Screens available
when the ENT pushbutton is pressed with the circuit
breaker highlighted as shown in Figure 10 (a). After
pressing the
ENT
pushbutton with the breaker highlighted
Figure 6 Breaker-and-a-Half
Figure 7 Ring Bus With Ground Switch
BAYNAME
BK2
BK1
SW1
SW2
BK3
BAYLAB2 BAYLAB1
BUSNAM1
BUSNAM2
ESC NAVIG
BAYNAME
6 ANALOGS
I:99999.9 A
V:99999.9 KV
P:99999.9 MW
Q:99999.9 MV
F:99.9 HZ
BAYLAB1
SW2
SW3
BK1
BK2
SW1
BAYLAB2
ESC NAVIG
Figure 8 Double Bus/Double Breaker
Figure 9 Source Transfer Bus
BAYNAME
6 ANALOGS
I:99999.9 A
V:99999.9 KV
P:99999.9 MW
Q:99999.9 MV
F:99.9 HZ
BUSNAM1
SW2
SW3
BK1 BK2
SW1
BUSNAM2
ESC NAVIG
BAYNAME
BUSNAM1
BK1 BK2
BUSNAM2
BAYLAB1
I:99999.9 A
V:99999.9 KV
P:99999.9 MW
I:99999.9 A
V:99999.9 KV
P:99999.9 MW
ESC NAVIG