1-4
BE1-47N General Information
Negative Sequence Voltage
Time Delay
Definite Time: Adjustable by front-panel switch over the range
of 0.1 to 9.9 seconds in increments of 0.1 seconds. Accuracy
5% or +50 ms (whichever is greater) of the time
selected by the switch.
Inverse Time: Adjustable over the range of 01 to 99 in
increments of 1. Accuracy 5% or +50 ms (whichever is
greater) of the indicated time of the selected time-dial curve as
plotted in Figure 3-3.
Instantaneous Time: Less than 50 ms.
Undervoltage Pickup
Adjustable from 2 to 32% below nominal in increments of 2%
with an accuracy of +1% of the voltage pickup setting.
Undervoltage Dropout
98% of pickup.
Undervoltage Time Delay
Definite Time: Adjustable over the range of 0.1 to 9.9 seconds
in increments of 0.1 seconds, with an accuracy of +5% of
the time selected.
Inverse Time: Adjustable over the range of 01 to 99 in
increments of 1. Accuracy 5% or +50 ms (whichever is
greater~ of the indicated time of the selected time-dial curve as
plotted in Figure 3-4.
Instantaneous Time: Less than 50 ms.
Overvoltage Pickup
Adjustable from 2 to 32% above nominal in increments of 2%
with an accuracy of +1% of the voltage pickup setting.
Overvoltage Dropout
98% of pickup.
Overvoltage Time Delay
Definite Time: Adjustable over the range of 0.1 to 9.9 seconds
in increments of 0.1 seconds, with an accuracy of +5% of the
time selected.
Inverse Time: Adjustable over the range of 01 to 99 in
increments of 1. Accuracy 5% or +50 ms (whichever is
greater of the indicated time of the selected time-dial curve as
plotted in Figure 3-5.
Instantaneous Time: Less than 50 ms.
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