BE1-CDS220 General
Information
1-17
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.
0
11.
0
Multiple of Pickup
R
e
sp
on
se
Ti
m
e
(
cyc
le
s
)
Unrestrained
Restrained
Figure 1-9. Typical 87 Response Characteristic Curves
Harmonic Inhibit
Pickup
Accuracy
5 A Current Sensing:
±2% of setting or 50 mA, whichever is greater
1 A Current Sensing:
±2% of setting or 50 mA, whichever is greater
TAP
5
Ampere
CT
Range:
2.00
to
20.0
A
Increment:
0.01 from 2.00 to 9.99, 0.1 from 10.0 to 20.0
1
Ampere
CT
Range:
0.40
to
4.00
A
Increment:
0.01A
Minimum Pickup
1 or 5 A Current Sensing
Range:
0.10
to
1.00
per
unit
Increment:
0.01
Restraint Slope:
1 or 5 A Current Sensing
Range:
15 to 60 %
Increment:
1%
Second and Fifth Harmonic
1 or 5 A Current Sensing
Range:
5.0 to 75.0 %
Increment:
0.5%
Unrestrained Pickup
1 or 5 A Current Sensing
Range:
1 to 21 times TAP up to 30 times I nominal, symmetrical
Increment:
1
87ND Neutral Differential Function
Restrained Differential (87NDPU, 87NDT)
Pickup
Accuracy
5 A Current Sensing:
±4% or ±75 mA
1 A Current Sensing:
±4% or ±25 mA
TAP
5
A
Current
Sensing
Range:
2.00
to
20.0
A
Increment:
0.01 from 2.00 to 9.99, 0.1 from 10.0 to 20.0
Summary of Contents for BE1-CDS220
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Page 10: ...viii Introduction BE1 CDS220 This page intentionally left blank...
Page 36: ...ii Quick Start BE1 CDS220 This page intentionally left blank...
Page 48: ...ii Input And Output Functions BE1 CDS220 This page intentionally left blank...
Page 66: ...iv Protection and Control BE1 CDS220 This page intentionally left blank...
Page 112: ...ii Metering BE1 CDS220 This page intentionally left blank...
Page 116: ...5 4 Metering BE1 CDS220 This page intentionally left blank...
Page 166: ...ii BESTlogic Programmable Logic BE1 CDS220 This page intentionally left blank...
Page 176: ...7 10 BESTlogic Programmable Logic BE1 CDS220 This page intentionally left blank...
Page 234: ...8 56 Application BE1 CDS220 This page intentionally left blank...
Page 236: ...ii Security BE1 CDS220 This page intentionally left blank...
Page 240: ...9 4 Security BE1 CDS220 This page intentionally left blank...
Page 242: ...ii Human Machine Interface BE1 CDS220 This page intentionally left blank...
Page 256: ...10 14 Human Machine Interface BE1 CDS220 This page intentionally left blank...
Page 258: ...ii ASCII Command Interface BE1 CDS220 This page intentionally left blank...
Page 422: ...14 32 BESTCOMS Software BE1 CDS220 This page intentionally left blank...
Page 424: ...ii Time Current Characteristics BE1 CDS220 This page intentionally left blank...
Page 452: ...ii Terminal Communication BE1 CDS220 This page intentionally left blank...
Page 456: ...C 4 Terminal Communication BE1 CDS220 This page intentionally left blank...
Page 458: ...ii Settings Calculations BE1 CDS220 This page intentionally left blank...
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