1-14
General Information
BE1-951
Automatic Setting Group Characteristics
Number of Setting Groups:
4
Control Modes
Automatic:
Cold-Load Pickup, Dynamic Load or Unbalance,
Recloser Shot
External:
Discrete Input Logic, Binary Input Logic
Switch Level Range:
0-150% of the setting group 0, monitored
element setting.
Switch Level Accuracy:
±2% or ±50 mA (5 A), ±2% or ±10 mA (1 A)
Switch Timer Range:
0 to 60 minutes with 1 minute increments.
(0 = disabled)
Switch Timer Accuracy:
±0.5% or ±2 sec whichever is greater
BESTlogic Update Rate
½ cycle
GENERAL SPECIFICATIONS
AC Current Inputs With 5 A CT
Continuous Rating:
20 A
One Second Rating:
400 A
For other current levels, use the formula:
I = (K/t)
½
where t = time in seconds,
K=160,000(All Case styles)
Saturation Limit:
150 A
Burden:Less than 10 milliohms
AC Current Inputs with 1 A CT
Continuous Rating:
4 A
One Second Rating:
80 A
For other current levels, use the following
formula
I = (K/t)
½
where t = time in seconds, K = 160,000 (S1
case), K = 90,000 (H1 case)
Saturation Limit:
30 A
Burden:10 milliohms or Less at 1A
Phase AC Voltage Inputs
Continuous Rating:
300 V, Line to Line
One Second Rating:
600 V, Line to Neutral
Burden:Less than 1 VA @ 300Vac
Auxiliary AC Voltage Inputs
Continuous Rating:
150 V, Line to Line
One Second Rating:
600 V, Line to Neutral
Burden:Less than 1 VA @ 150Vac
Analog To Digital Converter
Type:
16 bit
Sampling Rate:
12 samples per cycle, adjusted to input
frequency (10-75 Hz)
