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Chapter 1: General information
1.4
DIGITAL MEASUREMENT
•
Ground RMS current
1.5
SIGNALLING AND PROGRAMMING
•
LCD & LED display indication
•
Indication and storage of fault conditions and their values
•
Indication on the system status
- circuit breaker or disconnector closed
- circuit breaker or disconnector open
- circuit breaker or disconnector earthed
- reaching of the inverse-time ground overcurrent pickup level
- reaching of the of the instantaneous ground overcurrent pickup level
•
Indication of the relay status
RELAY STATUS
- LED "On": the output relay has tripped to open the circuit breaker or
disconnector. It stays "on" even when the output relay is programmed with
PULSED mode
- LED "Off": it switches off when pressing RESET key only if the condition
causing the fault is no more present
- intervention for reaching the ground current alarm setpoint
- relay "out of service" due to power supply droop or to internal fault
1.6
COMMUNICATION
•
Remote communication using a PC or a PLC by 2 RS485 ports or 1 RS232 port
•
Local and remote setting of the relay protections and features
•
Fault and event recorder for statistical analysis
•
Self-explicative program requiring no additional programming
•
Remote opening or closing of the circuit breaker or disconnector
1.7
SPECIFICATION
SUPPLY VOLTAGE
24÷310 Vdc, –15%, +10%
24÷240 Vac, –15%, +10%, 50/60Hz
TEMPERATURE RANGES
Operational:
from 0 °C to +50 °C
Storage:
from –20 °C to + 70 °C
DIELECTRIC WITHSTAND VOLTAGE
2 KV 60 s
CURRENT PROTECTION RELAY - IPR-D
SYSTEM STATUS
POWER CONSUMPTION
7W, 12 VA (max)
RELATIVE HUMIDITY
Max.: 90% (non condensing)
BURN IN
48 hours at 50 °C
1.3
LED
[BREAKER CLOSED]
[BREAKER OPEN]
[BREAKER EARTHED]
PICKUP I
> (51N/G)
o
PICKUP I
>> (50N/G)
o
LED
[TRIP]
[ALARM]
[OUT OF SERVICE]
Manual P/N: IPR-D GBM 01/09/2006
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