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Outgoing Feeder Distance Protection
RZL-05.DP

RZL-05.DP

RZL-05.DP

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A wide range of protection
and automation functions


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Digital oscilloscope
Event log


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Integration in
SCADA-system


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Environment temperature
-40°C...+55°C


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User-defined logics



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Fast-operating arc fault
protection with lens-type
photosensor

Application

RZL-05.DP devices intended for outgoing feeder distance protection and have four stages with independent time-delay characteristics. Protection doesn't operate in case of secondary voltage circuits fault and in case of nearby fault. Protection has circular impedance characteristic which sets with five settings that define the centre of circle, it’s radius and angles of initial and end of operation sector as it’s shown on a Figure 1. Protection controls each of three phase-to-phase impedance.

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Functions

  • Distance protection, 4 stages.
  • Directional and nondirectional overcurrent protection, 4 stages.
  • Switch onto faultacceleration.
  • Logical selectivity busbar protection.
  • Overload protection.
  • Directional and nondirectional ground fault protection, 3 stages.
  • Undervoltage protection, 2 stages.
  • Overvoltage protection.
  • Phase unbalance phase-loss protection (negative-sequence).
  • Arc-fault protection.
  • Overheat protection.
  • Breaker failure protection.
  • Breaker auto-reclosing.
  • Automatic load-transfer.
  • Secondary voltage circuitsperformance supervision.
  • Phase-to-phase fault location.
  • Breaker control.
  • User-defined logic.
  • Solid ambient conditions withstand (-40...+55 °C).
  • Multi-lingual LCD interface: English, Ukrainian, Russian.





















RZL-05.DP - circular impedance characteristics

Figure 1. Circular impedance characteristics of distance protection stages.

Distance protection parameters


Stages number 4
Impedance of secondary fault circuit loop setting range, RZ 0,05 - 200 Ω
Setting interval of checkzone Z impedance 0,01 Ω
Each checkzone circle centerpoint coordinates setting range (0r,0x) 0 - 200 Ω
Angles a and b setting range 0 - 360 deg
Setting interval ofa and b angles 1 deg
Time-delay setting range 0 - 10 s
Interval of time-delay setting 0,01 s
Minimum protection operating current 0,5 А
Maximum protection operating current 150 A
Minimum protection operating voltage 10 V
Device operating time-lag 35 ms

Technical parameters


Parameters RZL-05.DP -
1 3 11 13
Power supply units parameters
Operating voltage range, DC / AC, 50 Hz 90 – 360 V / 80 – 254 V
Power-on availability time 0,3 s
Operating supply interruption 0,5 s
Independent supply channels (auxiliary voltage circuits) 2
Device burden 2x13 Wt
Current input parameters
Rated input current 5 A
Line current inputs number 3
Measurable current range 0,1 - 150,0 A
Maximum monitored current value 200 A
Basic relative measurement accuracy ±2 %
Current thermal withstand, continuous /1 s 10 / 500 A
Zero-sequence current input parameters
Rated zero-sequence input current (3Io) 1 A
Line current inputs number 1
Measurable current range 0,01 - 4,00 A
Maximum monitored current value 10 A
Current thermal withstand, continuous /1 s 10 / 100 A
Voltage input parameters
Phase voltage 100 V
Number of inputs 4
Rated voltage range 1 - 150 V
Maximum continuous voltage 180 V
Linear voltages measurement accuracy ±2 %
3Uo voltage measurement accuracy ±3 %
Voltage thermal withstand, continuous /1 s 150 / 300 V
Measurement accuracy of phase angles between current 3Іо and voltage 3Uо ±3 deg
Thermal sensor input parameters
Number of inputs 1
Temperature range 0- 100 °C
Binary input parameters
Number of inputs 17
Rated AC, DC voltage 220 V
Response voltage level 132 - 176 V
Response time not less 40 ms
Current consumption at 220 V:
- power-on current
- continuous

20 mA
4 mA
Maximum voltage, continuous 310 V
Dry contact binary input parameters
Number of inputs 3
Dry contact circuits source voltage DC 24 V
Binary output parameters
Number of binary outputs 17
Max AC voltage trip 400 V
Maximum AC current 5 A (10 A for K1 output)
Max DC voltage trip 300 V
Maximum DC LR-circuit trip current, time constant τ≤20 ms 0,2 A (0,4 A for K1 output)
Arc fault protection sensors parameters
Number of inputs - 3 - 3
Response threshold 900 – 1700 lux
Communication
PC communication interface USB - 1 pcs
Automated Control System communication interface RS-485 - 2 pcs RS-485 - 1 pcs
Ethernet (RJ45)
Data Protocol MODBUS RTU MODBUS TCP
Connection speed 9600...115200 bps 10/100 Mbps
Other
Mounting type Flush
Device dimensions (WxHxD) 265x240x195 mm
LED indicators     total / configurable 20 / 16
Operating ambient temperature range - 40 to + 55 °C
Maximum Humidity at 25 °C 98 %
Insulation resistance, more than 50 MΩ
Insulation overvoltage withstand,
Instantaneous / continuous
2,0 kV , 50 Hz
5,0 kV pulse
Weight, less then 10 kg

Wiring Diagram example

RZL-05.DP-13 - wiring diagram

Wiring diagram of external circuits to the devices RZL-05.DP-13


Dimensions


RZL-05.DP - dimensions


RZL-05.DP - back

# Download the catalog. Relay Protection and Automation Devices.