Samwha DSP DSP-VIP-PL - OV;UV Trip Relay Outputs

LInE/oFF/
110/220/38
0/440/
480
to select a value
of line voltage
*to select voltage range of incoming line
*OFF:to make disable a protection at a one time
for phase loss ,reverse phase based on line
voltage,over(oP) and under(uP) voltage
*this disable execution takes a priority from
ON/OFF of each mode(oP,uP) about voltage
,also consequently,output of OV/UV is changed
into the output of lower level alarm(ALLc)
*110V is the output of PT by D-Y connection
between primary and secondary for the correct
calculation of power factor ,but others are line
voltage to operate a motor
440V
Load(DIP
S/W→KW
)/
setting
value
to preset a range
to protect over
load
*In case of selecting KW in DIP SW,this mode is
available to preset value(Load)and it is default
condition that previous "C" mode is not appeared
*Imaginary preset value of "OC" to execute a
protection for "Lock","Short" and "Shock" is
calculated inside algorithm as followed
formular:[KW=[root3 * V * I * K].here K=0.9.
*Normal operation is done as sensing a current
greater than 0.12KW/0.2A(380V)
oc(DIP
S/W
→C)/settin
g value
to preset a range
to protect over
current
*In case of selecting C in DIP SW,this mode is
available to preset value(current)and it is default
condition that previous "KW" mode is not
appeared
*even though ”C” is selected,the indication and the
protection in conjunction with line voltage can be
executed if line voltage is powered.
*Current range
--70 Type:0.2A ~ 70A/0.2A~6A with external CT
*Over Load range with Voltage
--70 Type:0.2KW~52.4KW(AC480V)
/0.2KW~4.5KW(AC480V) with external CT
10
Cto/1t/5A
*to sense a
current through
DSP in itself or
combined with
external CT
*1t
:current is sensed through its own CT
:the preset in next "ct" mode is not able.
*5A:a secondary current rating of external CT is
5A
1t
ct /setting
value
to preset a ratio
for external CT
*if 1t is selected in "cto" mode , this
mode is displayed like "ct--", it means that any
preset is not available anymore.so need to enter
to next mode.
*to preset the value of CT ratio[primary value/5]
*setting value :1~600
*1 for its own CT or 5:5 external CT
ct--
dt/off/setti
ng value
to preset starting
trip delay time
*Trip delay time to prevent unwanted trip caused
by starting current
*0.1~300 sec
5 sec
Otc/deF/
Inv
to select time-
current
chracteristics for
over current
protection
*to decide t-i characteristics to protect over
current :deF/Inv
*deF(definite):trip based on preset value for “OC”
and “ot”
*inverse
▸
dt=0 : trip based on cold curve
▸
dt>0 :trip based on hot curve after dt is
elapsed(actually dt+calculated time in inverse
curve)
deF