Figure 4-36. breaker failure screen -42 – Basler Electric BE1-700 User Manual

Page 98

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Figure 4-36. Breaker Failure Screen

Beside the Logic pull-down menu is a pull-down menu labeled Settings. The Settings menu is used to
select the setting group that the elements settings apply to. Note that Breaker Failure settings are Global.

The default unit of measure for the Pickup setting is secondary amps. The unit of measure for the Time
setting that represents the element's time delay defaults to milliseconds. It is also selectable for seconds,
minutes, and cycles.

Table 4-26 summarizes the operating settings for Breaker Failure Protection.

Table 4-26. Operating Settings for Breaker Failure Protection

Setting

Range

Increment

Unit of Measure

Default

Time

0 = Disabled

N/A

N/A

0

50 to 999 ms

1 ms

Milliseconds

0.05 to 0.999 sec.

0.001 sec.

Seconds

0 to 59.96 (60 Hz) or 0 to 49.97 (50 Hz)

Cycles

∗ Time delays less than 10 cycles can be entered to the nearest 0.1 cycles from the front panel HMI. All
time delays can be entered to the nearest 0.01 cycles from the ASCII command interface. Time delays
entered in cycles are converted to milliseconds or seconds. Increment precision after conversion is limited
to that appropriate for each of those units of measure.

Retrieving Breaker Failure Protection Status from the Relay

The status of each logic variable can be determined from the ASCII command interface using the RG-
STAT (report general-status) or the RL (report logic) commands. Status can also be determined using
BESTCOMS Metering screen. See Section 6, Reporting and Alarm Functions, General Status Reporting,
for more information.

4-42

BE1-700 Protection and Control

9376700990 Rev M

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