Sel SEL-DTA2, Инструкция по эксплуатации

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2.3
Date Code 20020329
SEL-DTA2 Instruction Manual
Specifications
Display Modes
When the relay sends a fault report to the SEL-DTA2, the report is checked
against a settable fault location window (see the SET command description).
If the fault lies within this window, the current display mode is preempted and
the SEL-DTA2 automatically enters the FAULTS mode. The SEL-DTA2
indicates the receipt of the new fault by adding the line “NEW FAULT” to the
top of the fault list (as shown in
Figure 2.3 ) in blinking characters.
Figure 2.3 New Fault Display
If any transducer outputs are programmed to present the fault location, these
channels are updated by the rules outlined in the SET command description.
The contact outputs reflect fault information as presented in the Contact
Outputs section.
Pressing any active front panel control acknowledges the fault and activates
the FAULTS mode functions as previously described. If both new fault(s) and
relay status warnings exist and are not acknowledged, the first line is modified
as shown in
Figure 2.4 .
Figure 2.4 New Fault/Relay Status Warning Display
The SEL-DTA2 remains in the FAULTS mode until another display mode is
selected. Also, if all new faults have been acknowledged, the FAULTS mode
can be preempted by the status mode via detection of a relay status warning.
METER Commands:
Access Metering
Data or Reset
Demand Registers
METER displays meter information; demand and peak-demand information
when available; resets demand; or resets peak demand of the selected relay on
command (where applicable).
Press METER to select METER commands:
Use the scroll keys to select one of the following:
METER (instantaneous)
METER D (demand)
METER RD (reset demand)
METER RP (reset peak)
Press METER again to send the command. Reset functions prompt you for a
confirmation. Press scroll up for YES to confirm, scroll down for NO to reject.
Not all SEL relays support the METER D, METER RD, and METER RP
functions. Refer to your relay instruction manual to determine which METER
functions are supported.
The meter display contains up to eight lines of data, the first two are displayed
when the METER mode is activated. View the remaining lines of the meter
display by using the “SCROLL DOWN” and “SCROLL UP” switches. As
shown in
Figure 2.5 on page 2.4 , this mode uses the following display format:
Line 1 .
Display line one contains phase current data in rms amps. When
Fast Meter is available and enabled, or the SEL-DTA2 is connected to
an SEL-121F Relay, residual current in rms amps is displayed
following the phase currents.
NEW FAULT
01 01/02/90 22:33:51.812 1BG 74.580
NEW FAULT & RELAY STATUS WARNING
01 01/02/90 22:33:51.812 1BG 74.580
METER (METER to accept, scroll to
change, other keys to exit)