Date Code 990430
Breaker/Recloser Monitor, Battery System Monitor,
8-3
Metering, and Load Profile Functions
SEL-351P Manual Técnico
Table SECTION 8: .3: Parameters Used to Automatically Set Contact Wear Monitor
Table 8.1
Settings
Interrupt
Rating =
6000
Interrupt
Rating =
8000
Interrupt
Rating =
12000
EBMON = Y
Y
Y
COSP1 =
30000
30000
30000
COSP2 =
10000
5000
5000
COSP3 =
100
160
40
KASP1 =
0.27
0.17
0.17
KASP2 =
0.50
3.00
3.00
KASP3 =
6.00
8.00
12.00
The parameters in Table SECTION 8: .3 are derived from Whipp & Bourne Switchgear:
Installation, Operation and Maintenance Manual, GVR Auto-Recloser, Issue C, July 1996,
section 5.2.2 Vacuum Interrupters. These parameters are used in automatically making the
settings in Table SECTION 8: .1, when global EZ setting
Recloser Wear Monitor (AUTO, Y, N)
= AUTO is made, as described previously.
For example, if the SEL-351P is connected to a GVR (27kV, 12 kA) recloser, use the SET FZ
command to enter and save the following Access Level E (EZ) global settings for the contact
wear monitor:
•
Recloser Wear Monitor (AUTO, Y, N) = AUTO
•
Interrupt Rating (6000, 8000, 12000 A pri.) = 12000
When you enter and save the above global EZ settings, the SEL-351P automatically sets the
following set points in the Access Level 2 global settings:
•
EBMON = Y
•
COSP1 = 30000
•
COSP2 = 5000
•
COSP3 = 40
•
KASP1 = 0.17
•
KASP2 = 3.00
•
KASP3 = 12.00
The SEL-351P integrates current and increments the trip counters for the contact wear monitor
each time the logical function BKMON asserts. Set the logic for this function using the Access
Level 2 SET L command. The default setting is BKMON = WBTR + WBTRT + \52A, which
causes the contact wear monitor to integrate and increment each time the SEL-351P trip output
asserts or the recloser is opened externally (see Figure 7.29).
For more information on the SET G and SET L commands, see Table 9.1 in
Section 9: Setting
the SEL-351P Recloser
. Also refer to
BRE Command (Breaker Monitor Data)
and
BRE n
Command (Preload/Reset Breaker Wear)
in
Section 10: Serial Port Communications and
Commands
.
Содержание SEL-351P
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