POWERSYS RECLOSER, Manual

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1) Fast Operation
This menu is for setting “FAST” among Recloser’s operation sequence
2) Delay Operation
This menu is for setting “Delay” among Recloser’s operation sequence
3) Delay DT Protection
This menu is for setting Delay Definite Time regardless of targeted section among
Recloser’s operation sequence
4) HCT Protection
This menu is for setting the protection against the high current trip of Recloser
5) Cold load Operation
If a load has not been powered for a prolonged period, and when the power has again
resumed i.e. by input of circuit breaker, this can impose a higher current than the pickup
value of time-delay overcurrent protection, which could exceed normal settings. These
conditions can exists for an extended period and must not be interpreted as a fault. In
other words, this function is recognized as Cold load circumstance, when no current
measured in the Recloser is maintained for 5 minutes(300sec). If the measured current is
less than the multiples of pick-up, Recloser does not recognize it as a failure. If it is larger
than the multiples of pick-up, Recloser regards the situation as an actual fault, and
performs the same reclosing sequence same as normal operation.
<Figure 5-8> ColdLoad
Fault
Direction
Trip Direction OFF/FWD/REV OFF Selection of phase fault direction
3V1 Threshold 0~100 20 1 %
Set positive sequence voltage
operating value
3I1 Threshold 0~100 20 1 %
Set positive sequence current
operating value
3I1 Angle 0~359 300 1 °
Set positive sequence current
operating angle
Dir Block OC NO/YES NO Set direction function block