P00097

DPR – 1000

DPR-1000 is the digital protective relay which is intended for monitoring and protecting the faults on the feeder of distribution system, especially for the medium-voltage motors.

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  • Features
  • Characteristics

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Features

  • 11 protective function for the medium-voltage motors
  • Compact type protective relay with built-in various add functions
  • Remote control & Monitoring of circuit breaker
  • MODBUS, DNP3.0 / RS-485 communication
Function
  • Protection & Control
    • Overcurrent (50/51P), Overcurrent ground (50/51N)
    • Thermal (49), Negative sequence overcurrent (46)
    • Selective ground (67G), Directional ground (67N)
    • Under current (37), Stall & locked rotor (48/51LR)
    • Starts per hour (66)
    • Lock-out (86)
    • 2 analog inputs (Thermistor)
    • 5 digital outputs
    • 3 digital inputs
  • Monitoring & Metering
    • I, Io, I2, Vo
    • Temperature (2 ch.)
    • Starting current, starting time, full load current, thermal, etc.
    • Event triggered wave recording: 15 Traces (Ir, Is, It, Io, Vo, AI1, AI2, DI/DO, etc.)
  • User Interface
    • 20×4 Character LCD
    • DNP3.0, Modbus/RS-485
    • PC interface software (GIPAM manager)

Characteristics

Protection functions
Protective
function
Operating part Setting & Operating time Remark
OCR
(50/51)
Instantaneous
high set
Setting: OFF, 0.5~20.0/0.1In Below 40ms
Instantaneous
low set
Setting: OFF, 0.5~20.0/0.1In
Operating time: 0.05~60.0/0.01s
Definite
Time delay Setting: OFF, 0.1~4.0/0.02In
Operating time: 0.05~1.20/0.01 (Inverse)
Curves
SI, VI, EI, LI
OCGR
(50/51N)
Instantaneous Setting: OFF, 0.1~8.0/0.02In
Operating time: 0.05~300.0/0.01s
Definite
Time delay Setting: OFF, 0.02~2.0/0.01In
Operating time: 0.05~1.20/0.01 (Inverse)
0.05~60.0/0.01s (Definite)
Curves
DT, SI, VI, EI, LI
NSOCR(46) Time delay
high set
Setting: OFF, 0.1~1.0/0.02In
Operating time: 0.08~60.0/0.01s
Definite
Time delay
low set
Setting: OFF, 0.1~1.0/0.01In
Operating time: 0.05~1.00/0.01(Inverse)
0.08~60.0/0.01s(Definite)
Curves
DT, SI, VI, EI, LI
DGR
(67N)
Time delay Io Setting: 0.02~2.0/0.01Ion
Vo Setting: 11~80/1V
Grounded system
Definite
RCA Setting: 0~90/1°
Operating time: 0.05~10.00/0.01s
SGR
(67G)
Time delay Io Setting: 0.02~2.0/0.01Ion
Vo Setting: 11~80/1V
RCA Setting: 0~90/1°
Operating time: 0.05~10.00/0.01s
Isolated system
Definite
THERMAL
(49)
Time delay Setting: OFF, 50~100/1% (τh, τc) Motor Config.
STALL/LOCK
(48/51LR)
Time delay(Stall) Setting: 0.50~10.00/0.01
(FLC×SVC.×O/L)
Motor Config.
Time delay(Lock) Operating time: 0.05~300.0/0.01s(Definite)
0.05~1.20/0.01(Inverse)
Motor Config.
UCR
(37)
Time delay Setting: 0.1~0.9/0.02In
Operating time: 0.05~300.0/0.01s
Definite
NCH
(66)
- Starts number: OFF, 1~5 times/1
Base time: 10~60min/1min
Time between starts block: 1~60min/1min
Operating time: 10~80%/1%
Notching
RTD
(38)
Time delay Setting: OFF, 20~180/1°C
Operating time: below 50ms
Definite
Motor protection
Motor protection
Motor factor Setting & Operating time Remark
STALL/
START TIME
Tss (Stall operating time): 0.05~300.00/0.01s
Ts (Motor starting time): 1.0~300.0/0.1s
-
FLC/LRC FLC: 0.20~2.00/0.01In
LRC: 0.50~10.00/0.01FLC
FLC: STALL Setting
LRC: LOCK Setting
SERVICE
FACTOR
SVC: 1.00~1.20/0.05 -
THR CONST Thermal const.(Heat): 2.0~60.0/0.5min
Thermal const.(Cool): 2.0~60.0/0.5min
Overload Const. (O/L): 0.80~1.20/0.05
THR (49) Setting
OCGR
BLOCK TIME
B/T : 0.00~60.00/0.01s Operating
delay time
Measurement
Measurement
Item Display range Remark
Line / Load current 0.000A ~ 999.99kA (CTpri) Start