ORION ITALIA IPR96D, Инструкция по эксплуатации

Страница: 5 / 40

1. General Information
IPR96D Ground Protection Relay 1.1 Instruction Manual: IPR96D GBM 24/11/2020
1. General Information
1.1 DESCRIPTION
Ground Protection Relay (IPR96D) has been designed to measure the ground RMS current under normal conditions or under
disturbances.
The current signals are sensed throughout a current transformer (CT). This information is internally processed by the
microprocessor in order to take the current protection actions defined under ANSI, IAC or IEC standard.
1.2 APPLICATIONS
•
Primary and backup protection for utility feeder, power plants and industrial distribution systems
1.3 DIGITAL MEASUREMENT
•
Ground RMS Currents
1.4 FEATURES
•
CT rated primary selectable in 5 A steps (5 A to 5000 A)
•
Ground RMS current measurement
•
1 trip relay and 2 programmable auxiliary relay
•
Control power drop or internal fault relay
•
Breaker operation & trip failure
•
Digital input functions:
o
remote TRIP
o
remote RESET
o
remote Aux Relay activation
o
breaker Status
1.5 COMMUNICATION
•
Communication port RS485
•
Remote programming of the setpoints
•
Communication Protocol: Modbus RTU
1.6 SIGNALLING AND PROGRAMMING
•
LED and LCD display indication
•
Ground current indication
•
Indication and storage through a Pop-Up function, of fault conditions and their values
•
Available leds:
Led Description Duty Cycle
Status
(keep alive) -It indicates that the device is switched on and the self-diagnosis has not encountered any
problems.
-When it blinks, it indicates an error in setpoint discrepancy, flash memory, RAM memory, ADC
or Bluetooth BLE. OFF = 3s
ON = 0.1s
OFF = 0.3s
ON = 0.3s
Trip -The protection function has activated the TRIP relay.
-A breaker failure has occurred. A protection has activated the TRIP relay, but the breaker did
not interrupt the circuit. ON = fixed
OFF = 0.3s
ON = 0.3s
Reclose *Optional. Available depending on model type.
In case of setpoint discrepancy, check
[Troubleshooting] .
1.7 PROTECTIONS AND FUNCTIONALITIES
•
(50G/50N) Instantaneous ground overcurrent
•
(51.1G/51.1N) Ground timed overcurrent
•
(51.2G/51.2N) Ground timed overcurrent
•
ANSI, IAC or IEC/BS142 curves included:
o
moderately inverse
o
normal inverse
o
very inverse
o
extremely inverse
o
definite time