1. General Information
IPR96D Ground Protection Relay
1.2
Instruction Manual: IPR96D GBM 24/11/2020
1.8 SPECIFICATIONS
SUPPLY VOLTAGE
Options:
(See Section 1.9 Order Code)
Model A:
120/230 Vac, -15%, +10%, 50/60 Hz
Model W:
85V (115V)
264V (300V) Vac (Vdc)
Model B:
24Vdc -15%, +10%,
Model C:
48Vdc -15%, +10%
TEMPERATURE
Operational: 0°C
+50°C
Storage temperature:
-20
°C
+70 °C
ELECTRICAL INSULATION CONSTRUCTION
OverVoltage category: III
Pollution degree: 2
Altitude: 2000m (AMSL)
GROUND CT INPUT
CT Rated Primary Current (I
P
n) 5A to 5000A, Steps: 5
CT Rated Secondary Current (I
S
n) 1A and 5A
Sampling: True RMS, 32 sample/s
CT burden: 0.25 VA (5A input)
0.1 VA (1A input)
Continuous Current: 2xI
S
n
Current withstand capac.: 30 times I
S
n for 1 sec.
Accuracy: at <= I
S
n → ±0.5% x I
S
n
at > I
S
n → ±0.5% of 20x I
S
n
INSTANTANEOUS GROUND OVERCURRENT
(50 N/G)
Pickup Level: 1% to 2000% of CT, Steps: 1% / 10%
Delay Time: 0 to 2000 ms, Steps: 10 ms
Accuracy Pickup: ±1% CT
Time +40 ms max
GROUND TIME OVERCURRENT (51.1 N/G)
Pickup Level: 1% to 300% of CT, Steps: 1%
Time Multiplier: 0.1 to 20.0 for each curve
Accuracy Pickup: ±1% CT
Time ±3% of trip time or 20 ms
Delay time:
0.5s
→
600s,
Steps: 0.1s (from 0.5s to 10s); 1s (from 10s to
600s)
GROUND TIME OVERCURRENT (51.2 N/G)
Pickup Level: 1% to 300% of CT, Steps: 1%
Time Multiplier: 0.1 to 20.0 for each curve
Accuracy Pickup: ±1% CT
Time ±3% of trip time or 20 ms
Delay time:
0.5s
→
600s,
Steps: 0.1s (from 0.5s to 10s); 1s (from 10s to
600s)
MAX. POWER CONSUMPTION
6 VA (4 W)
RELATIVE HUMIDITY
Max. 90% (non-condensing)
BURN IN
48 hours at 50 °C
DIELECTRIC WITHSTAND VOLTAGE
2 kVac, 60s from all circuits and enclosure
2 kVac, 60s between HLV and LV circuit
DIGITAL INPUT
(2) dry contacts
Max connection lengths: 3mt
Rated Voltage: 5 Vdc internally powered
OUTPUT CONTACT
(1) trip relay and (2) programmable auxiliary relays
Rated load: 8A@ 240Vac Resistive
8A@ 24Vdc Resistive (0,2 A @125 Vdc)
Max Switching Voltage: 250 Vac / 150 Vdc
Max Continuous Current: 5 A
MECHANICAL
Back connection, section 2,5 mm² or 14 AWG
Frame: Noryl auto-extinguish
IP40 Front (up to IP54 front, on request)
Dimension: 96 x 96 x 113 mm.
Front panel cutout: 92 x 92 mm
Weight: 500 gr.
COMMUNICATION
RS-485 serial port
Protocol: Modbus RTU-Slave
Insulation: 1,5 kVdc
Bluetooth: 4.2
STANDARDS
Low voltage directive: IEC 60255-27, IEC 60255-5
EMC directive: IEC 60255-26
FIRMWARE UPGRADE
via RS-485 Serial Port
OTA via Bluetooth (Future option)
*Depending on IPR96D version
The term CT is intended as the abbreviation of CT Rated
Current; meaning I
P
n for the primary CT or I
S
n for the
secondary CT.
1.9 ORDER CODE
IPR96D X Y
Where X stands for MODEL:
1:
Standard version (Secondary CT 1A/5A)
X:
Special version
Where Y stands for POWER SUPPLY:
A:
120/230 Vac
W:
85÷240 Vac/dc
B:
24 Vdc
C:
48 Vdc
