DIGITAL Over Voltage & Under Voltage Relay [59/27]▶ CHARACTERISTICSUp to now OVR and UVR relays were separately setandoperated,

but now they are compacted in one relay unit.

Therefore, it is very convenient for handling, too.

As assembled with state of the art and multifunction, it is most

suitable and applicable for protective coordination.

Volt meter being installed, it can be used for measuring.

Electronic indicator can accurately detect troubles, and surely

indicate electrical troubles.

▶ SPECIFICATION

MODELOV X 3 + UV X 3DMPS-DPR-OUVRDMPS-DPR-OUVR-D

CONTACTTrip Relay (1 Form A) Contact Capacity

Contact Material Signal Relay (1 Form C)Contact Capacity Contact Material

RatingInputFrequency Auxiliary VoltageAmbient Temperature

(Fixed Type with RS485 output)(Draw Out Type with RS485 output)

NO : 30A 240VAC/28VDC NC : 20A 240VAC/28VDC Ag alloy

16A 250VAC Silver alloy

AC110V50 / 60Hz ± 5% AC /DC 80 ~ 264V-10℃ / +60℃ (without icing)

Voltage Setting[OV][UV]InstantaneousOperating Value

100 ~ 160V (1V step)50 ~ 120V (1V step)20 ~ 90V100% (±5%)

Time Setting & Curve<IEC 60255>UV/OV LeverInstantaneous TimeReset TimeResetting Vlaue[OV][UV]

UV Inverse Time

OV Inverse Time

UV/OV Definite Time

t= -0.85

(υ/100)^2.4-1X tp

t= ( 12.15υ^2-1

+0.35) X tp10

t=tp

Operating Time[OV][UV]

BurdenAC VoltageAC Aux. VoltageDC Aux. Voltage

0.1 ~ 10 (0.1 step)≤ 50ms< 100ms

V < 90%V > 110%

Inverse or Definite TimeInverse or Definite Time

≤ 2.0VA 12VA6W

Indicator (LED)CPU State(Self-diagnostic & monitoring)Communication IndicationFliker when inputted OV/UVDisplay faulte phase /

instantaneous

RUN (Green) COMM (Yellow)PICKUP (Red)AB,BC,CA/OV,UV (Red)

MEMORYUp to 5 records of fault data

RS 485 CommunicationProtocolComm. SpeedParity

Modbus9600 / 19200 bpsNone

Insulation<IEC 60255-5>DIelectric Withstand

Insulation Resistance at 500V Impulse Voltage WithstandSurge Transient SimulatorWeight

2kv for 1min between allterminals and case earth> 10㏁5kv-1.2/50us2.5kv 1MHz/200Ω1.5kg

Environmental & EMC Conditions<IEC 61000>Dust & Drop Resistance Front cover with IP42

protection level

Optional IP54 protection level

▶ TIME CURVE : DMPS-DPR-OUVR/OUVR-D

DIGITAL Over Current & Earth Fault Relay [50/51 X 3] [50N/51N]

DIGITAL Over Current & Earth Fault Relay [50/51 X 3] [50N/51N]

▶ CHARACTERISTICS

Easy coordination between wiring and receving point of OCR with

only 1set of relay.

With LCD display showing all information about the state of setting

and input current value of each phase, also, LED lights indicating

the running state.

Selective operating time consists of definite time, normal inverse time,

very inverse time, and extremely inverse time.

Detecting faults correctly at the time of short circuit as well.

The relay was electronically structured, therefore it works semi-permanently.

▶ SPECIFICATION

MODELCO X 3 + LCODMPS-DPR-OCGRDMPS-DPR-OCGR-D

CONTACTTrip Relay (1 Form A) Contact Capacity

Contact Material Signal Relay (1 Form C)Contact Capacity Contact Material

RatingInputFrequency Auxiliary VoltageAmbient Temperature

(Fixed Type with RS485 output)(Draw Out Type with RS485 output)

NO : 30A 240VAC/28VDC NC : 20A 240VAC/28VDC Ag alloy

16A 250VAC Silver alloy

AC5A50 / 60Hz ± 5% AC /DC 80 ~ 264V-10℃ / +60℃ (without icing)

Current Setting[CO]Overcurrent RangeInstantaneous Range [LCO]Overcurrent RangeInstantaneous RangeOperating ValueTnermal Withstand

0.2 ~ 15A (0.1A step)5 ~ 80A (1A step)

0.2 ~ 5A (0.1A Step)1 ~ 40A (1A Step)100% (±5%)15A/continuous, 400A/1S

Time Setting & Curve<IEC 60255>Overcurrent LeverInstantaneousReset TimeResetting Vlaue

Normal Inverse Time

Very Inverse Time

Extremely Inverse Time

Definite Time D=tp

BurdenAC COAC LCOAC Aux. VoltageDC Aux. Voltage

0.1 ~ 40 (0.1 step)≤ 50ms< 100ms> 90%

≤ 0.5VA ≤ 0.5VA 12VA6W

Indicator (LED)CPU State(Self-diagnostic & monitoring)Communication IndicationFliker when inputted OCFaulte phase/instantaneous

RUN (Green) COMM (Yellow)PICKUP (Red)R,S,T,N/INST (Red)

MEMORYUp to 5 records of fault data

RS 485 CommunicationProtocolComm. SpeedParity

Modbus9600 / 19200 bpsNone

Insulation<IEC 60255-5>DIelectric Withstand

Insulation Resistance at 500V Impulse Voltage WithstandSurge Transient SimulatorWeight

2kv for 1min between allterminals and case earth> 10㏁5kv-1.2/50us2.5kv 1MHz/200Ω1.5kg

Environmental & EMC Conditions<IEC 61000>Dust & Drop Resistance Front cover with IP42

protection level

Optional IP54 protection level

V= 13.5Ⅰ -1

X tp10

Ⅰ= ( 80Ⅰ2-1

X tp10

X N= 0.14

I^0.02 -1

tp10

▶ TIME CURVE : DMPS-DPR-OCGR/OCGR-D