Ormazabal ekor.rps, Общее руководство по инструкции

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IG-150-EN version 04; 03/10/16
84
Protection functions. Description and settings General instructions
ekor.rps
4.14.3. Setting ranges of the Instantaneous characteristic (6 tables)
Setting Min Max Step Notes
Enable YES/NO
Phase instantaneous trip [V] 10 200 0.1
Additional time [s] 0.00 60.00 0.01
Table 4.17.
Setting ranges of the Instantaneous characteristic (6 tables)
These settings can be found in the console on the screen
“voltage protection”.
The tripping voltage is set to secondary volts.
The remarks about times are the same as those given for the
overcurrent function
.
In both the timed and instantaneous
functions, once the protection starts up, the
drop takes place when the voltage drops to
99 % of the start set value, if it is higher than
50 V (or to 98 % if it is lower)
4.15. Undervoltage protection
4.15.1. General description
Three-unit overvoltage protection, which can be simples
or compounds (see “General settings”), with following
selectable characteristics to choose from (function 59):
Timed Characteristic:
1. Inverse normal time (I BSC or I ANSI)
2. Inverse short time (IC BSC)
3. Inverse long time (IL BSC)
4. Very inverse time (MI BSC or MI ANSI)
5. Extremely inverse time (EI BSC or EI ANSI)
6. Very inverse special time (MIEs BSC)
7. Moderately inverse time (ANSI)
8. 4 User curves (USER 1 up to USER 4)
9. Definite time
Instantaneous characteristic:
1. Instantaneous unit
2. Additional time
The functioning of this function does not cause automatic
reclosing.
4.15.2. Setting ranges of the timed characteristic (6 Tables)
Setting Min Max Step Notes
Enable
YES/NO
Pickup [V]
10 200 0.1
Curve type
Definite time
Normal inverse curve
Short inverse curve
Long inverse curve
Very inverse curve
Extremely inverse curve
Very inverse special curve
Moderately inverse curve
User curve
Time index 0.05
0.5
1.09
30.0 0.01
0.1
For IEC curves
For ANSI curves
Definite time [s]
0.0 600.0 0.01
Table 4.18. Setting ranges of the timed characteristic