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M-4272 Instruction Book
3–14
System/Monitor/Phasor Diagram
The Phasor Diagram (Figure 3-18) provides the user
with the ability to evaluate a source reference Phase
Angle to Phase Angle data from other sources. The
Phasor Diagram also includes a menu that is
accessed by executing a right mouse click which
allows the user to select/deselect sources to be
displayed and Freeze capability to freeze the data
displayed on the Phasor Diagram.
System/Monitor/Sync Scope
The Sync Scope screen (Figure 3-19) provides the
user with the ability to observe the Delta Frequency
relationship between the Bus and the New Source,
illustrated in a Fast or Slow direction based on Delta
Frequency.
▲
CAUTION:
Do not use the Delta Phase Angle,
Delta Voltage, Delta Frequency or Sync Scope Pointer
of the ISScom
®
Sync Scope screen to determine
when to manually initiate a transfer. There is
sufficient delay in the communications between the
MBTS and the ISScom such that these indications
do not provide “live” information.
System/Monitor/Single Line Diagram
The Single Line Diagram screen (Figure 3-20) is a
mimic display that allows the user to observe the
Source 1 (S1) and Source 2 (S2)’s Secondary Voltage,
Current and Bus Secondary Voltage. All of these
metering values can be selected to be primary or
secondary values.
The screen displays the Phase Voltages for the
three voltage inputs to the M-4272 MBT System.
The voltages of S1, S2 and Bus for the selected
single phase will be displayed. The screen displays
the single phase currents flowing through the Source
1 and Source 2 breakers. The current is used for the
Breaker Failure (50BF) feature only. If the S1/S2 CT
Configuration is set to “No” (S1 & S2 CT not connected
to the rear terminals) (Figure 4-22), then the Single
Line Diagram will not display current values.
The Single Line Diagram screen also displays Delta
Phase Angle, Delta Frequency and Delta Voltage
between the motor bus and the new source (the new
source is defined as the source to which the bus is
being transferred).
In addition the screen displays the status of Source
1 and Source 2 breakers. The CB-S1 and CB-S2
indicators display RED color when the Source 1
breaker (CB-S1) or Source 2 breaker is in the closed
position. The CB-S1 and CB-S2 indicators display
GREEN color when the Source 1 breaker (CB-S1) or
Source 2 breaker (CB-S2) is in the open position.
In the M-4272 MBT System portion of the screen the
52-S1 In-Service and 52-S2 In-Service indicators
display GREEN color when the Source 1 or Source 2
breakers are in the service position; the 52-S1 In-
Service and 52-S2 In-Service indicators will not be
illuminated when the Source 1 or Source 2 breakers
are not in service or in test position.
The M-4272 MBT System portion of the screen also
displays the Manual Transfer Ready status, Lockout/
Blocking status, the Remote/Local control status
and the Device ON/Device OFF status.
The Manual Transfer Ready indicator displays
GREEN color when the Manual Fast Transfer Ready
or Manual Hot Parallel Transfer Ready condition is
met.
The Manual Transfer Ready indicator is not illuminated
when the Manual Fast Transfer Ready or Manual
Hot Parallel Transfer Ready condition is not met.
The Lockout/Blocking indicator displays RED color
when the Lockout/Blocking condition occurs. The
Lockout/Blocking indicator is not illuminated when
no Lockout/Blocking condition occurs.
The Remote indicator displays GREEN color and
Local indicator is not illuminated when the Remote/
Local control is selected to the Remote position.
The Remote indicator is not illuminated and Local
indicator displays GREEN color when the Remote/
Local control is selected to Local position.
The Device ON indicator displays GREEN color and
Device OFF indicator is not illuminated when the
Device On/Off control is selected to Device On
position.
The Device ON indicator is not illuminated and
Device OFF indicator displays RED color when the
Device On/Off control is selected to Device Off
position.
Содержание M-4272
Страница 1: ...Instruction Book Book 1 of 2 M 4272 Motor Bus Transfer System ...
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Страница 198: ...System Setup and Setpoints 4 4 87 Figure 4 92 TCM Trip Circuit Monitor Inputs Outputs Selection Dialog Screen ...
Страница 200: ...System Setup and Setpoints 4 4 89 Figure 4 93 ISSLogic Function Dialog Screen ...
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Страница 214: ...Declaration of Conformity Appendix I I 1 IAppendix I Declaration of Conformity ...
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