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1) " Measure Ia" ， " Measure Ic" display the rms of the measuring current transformer phase A and phase C
current. If there is no phase B measurement, 0 is displayed "Measure Ib".
2) Measurement Uab ， Ubc ， Uca have the same input terminal as protection voltage Uab ， Ubc ， Uca. However
the data are directly taken from special measurement module. "cosΦ" is power factor
3) Active power P is directly taken from special measurement module.
4.18.3 Power measurement
This device applies two-meter-method to measure power. The direction of reactive power Q is decided by
corresponding angle of protection line voltage and current.
Therefore, when examining reactive power, phase A and phase C protection current must be connected
simultaneously.
5 Settings and Setting Specifications
5.1 Setting value list and specifications of BEPR- 822U Digital Asynchronous Motor Protection
Setting value list of BEPR- 822U Digital Motor Comprehensive Protection
Ser.No
Setting name
1
Control character 1
2
Control character 2
3
Motor rated current
4
Motor startup time
5
Instantaneous current setting
6
Instantaneous time
7
Over-current settings
8
Over-current time
Over-current
9
limit time
10
Zero-sequence 1 current
Zero-sequence current 1
11
time
12
Zero-sequence 2 current
13
Zero-sequence current 2 time
14
Negative-sequence
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Range
0000
F FFF
～
0000
F FFF
～
0.2
2 0.0
～
0.0
6 0
～
0.2
1 00.0
～
0.0
2 0.00
～
0.2
1 00.0
～
0.1
3 000
～
inverse-time
0.1
3 000
～
0.02
5 .50
～
0.0
2 0.00
～
0.1
2 0.00
～
0.0
2 0.00
～
zone
I
0.1
1 00.0
～
1 8
BUENO ELECTRIC
BUENO ELECTRIC
BUENO ELECTRIC
BUENO ELECTRIC
Unit
Remarks
Refer to definition of control
No
character 1(KG1)
Refer to definition of control
No
character 2(KG2)
A
I
e
s
T
start0
A
s
A
s
s
A
s
A
s
A
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