Publicité
PROGRAMMING
Voltage thresholds
LCD
Denomination
Network 1 over voltage threshold
oU
Network 1 over voltage threshold hysteresis
oUh
uU
Network 1 under voltage threshold
uUh
Network 1 under voltage threshold hysteresis
oU
Network 2 over voltage threshold
Network 2 over voltage threshold hysteresis
oUh
uU
Network 2 under voltage threshold
uUh
Network 2 under voltage threshold hysteresis
Values defined are % of nominal values.
Hysteresis thresholds must be programmed according to over and under voltage thresholds
(respectively under & above).
Frequency thresholds
LCD
Denomination
oF
Network 1 over frequency threshold
oFh
Network 1 over frequency threshold hysteresis
uF
Network 1 under frequency threshold
uFh
Network 1 under frequency threshold hysteresis
oF
Network 2 over frequency threshold
oFh
Network 2 over frequency threshold hysteresis
uF
Network 2 under frequency threshold
Network 2 under frequency threshold hysteresis
uFh
Values defined are % of nominal values.
Hysteresis thresholds must be programmed according to over and under frequency thresholds
(respectively under & above).
40
Setting range
Default values
102 - 120%
115%
101 - 119% (< oU)
110%
80 - 98%
85%
81 - 99% (> uU)
95%
102 - 120%
115%
101 - 119% (< oU)
110%
80 - 98%
85%
81 - 99% (> uO)
95%
Setting range
Default values
101 - 120%
105%
100,5 - 119,5%
103%
(< oF)
80 - 99%
95%
80,5 - 99,5% (> uF) 97%
102 - 120%
105%
100,5 - 119,5%
103%
(< oF)
80 - 99%
95%
80,5 - 99,5%
97%
(> uF)
PROGRAMMING
Timers
LCD
Denomination
Main Failure Timer From
Mft
Delays priority network failure detection
Delay on transfer timer From
dtt
Emergency network stability validation before transfer
O Main Failure Timer From
0Mf
Rest in O position when transferring
from main network to emergency network
Main Return Timer From
Mrt
Main network stability validation before re-transfer
O Main Return Timer From
0Mr
Rest in O position when re-transferring from emergency network
to main network
Cool Down Timer From
Cdt
Allows generator cooling down period after load's
retransfer from emergency source (generator) to Main source
41
Setting range
Default values
From 0 to 60 s
5 s
From 0 to 60 s
5 s
From 0 to 20 s
0 s
From 0 to 30 min
2 min
From 0 to 20 s
0 s
From 0 to 10 min
4 min
Publicité
