Sel 411L - Figure 7.28 LOCAL CONTROL Initial Menu

P.7.23
Date Code 20151029 Protection Manual SEL-411L Relay
Front-Panel Operations
Front-Panel Menus and Screens
Local Control
The relay provides great flexibility in power system control through the LOCAL
CONTROL
menus. You can use the front-panel LOCAL CONTROL menus to
perform these relay functions:
➤ Trip and close circuit breakers (password required)
➤ Assert, deassert, and pulse relay control outputs to command
station control actions
➤ Test relay outputs (password required)
In the first
LOCAL CONTROL submenu of Figure 7.28, you can choose BREAKER
CONTROL
, LOCAL BITS CONTROL, or OUTPUT TESTING. You must install the
circuit breaker control enable jumper to enable circuit breaker control and
output testing capability (see Operating the Relay Inputs and Outputs on
page P.10.21 and Password and Circuit Breaker Jumpers on page P.2.14). The
submenu will not display the
--BREAKER CONTROL-- option and the --OUTPUT
TESTING--
option if the breaker jumper is not installed. (The relay checks the
status of the breaker jumper whenever you activate the front-panel settings and
turn on the relay.) If the breaker jumper is not installed, and there are no local
bits enabled, the relay displays an information message when you attempt to
enter
LOCAL CONTROL and the screen returns to the MAIN MENU after a short
delay.
Local bit names that you have programmed (see Example 7.4) appear in the
local control bit names field between
--BREAKER CONTROL-- and --OUTPUT
TESTING--
, as shown in Figure 7.28. Use the Up Arrow and Down Arrow
pushbuttons to highlight the local control action you want to perform. Pressing
ENT takes you to the specific
LOCAL CONTROL screen.
Figure 7.28 LOCAL CONTROL Initial Menu
BREAKER CONTROL
The BREAKER CONTROL option presents a circuit breaker selection submenu if
NUMBK := 2. Use the navigation pushbuttons and ENT to select the circuit
breaker you want to control.
Figure 7.29 shows the
BREAKER CONTROL submenu and sample circuit breaker
control screens for
BREAKER 1. Use the Up Arrow and Down Arrow pushbuttons
to highlight the
TRIP BREAKER 1 or CLOSE BREAKER 1 control actions.
When you highlight the trip option and press ENT, the relay displays the
confirmation message
OPEN COMMAND ISSUED and trips Circuit Breaker 1. The
BREAKER 1 STATUS changes to OPEN.
When you highlight the close option and press ENT, the relay displays the
confirmation message
CLOSE COMMAND ISSUED and closes Circuit Breaker 1.
The
BREAKER 1 STATUS changes to CLOSED.
LOCAL CONTROL
--BREAKER CONTROL--
Enable Bus Switching
North Bus MOD
South Bus MOD
Bus Tie Interlock
Alternate Settings 3
--OUTPUT TESTING--