I
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
Table of Contents
1.
Description ........................................................................................................... 1-1
1.1
General Overview .................................................................................................. 1-2
1.2
Protection Subsystem Functions ........................................................................... 1-3
1.2.1
Non-Directional Overcurrent Protection 3-Phase and Ground .............................. 1-3
1.2.2
Recloser (7IRD-A/J Models) .................................................................................. 1-3
1.2.3
Breaker Failure Protection ..................................................................................... 1-3
1.2.4
Open Phase Protection .......................................................................................... 1-3
1.2.5
Residual Current Detection (Neutral Unbalance Unit) ........................................... 1-3
1.3
Control Subsystem Functions ................................................................................ 1-4
1.3.1
Local Control and Status Indication of all Bay Elements ....................................... 1-4
1.3.2
Local Recloser Control (7IRD-A/J Models) ............................................................ 1-4
1.3.3
Measurement Presentation.................................................................................... 1-4
1.3.4
Presentation of Local Alarms as Conventional Alarms ......................................... 1-4
1.3.5
Indication of Digital Inputs / Outputs ...................................................................... 1-4
1.3.6
Indication of Auxiliary Inputs / Outputs States and Protection LEDs ..................... 1-4
1.4
Additional Functions .............................................................................................. 1-5
1.5
Model Selection ..................................................................................................... 1-7
2.
Technical Data ..................................................................................................... 2-1
2.1
Power Supply Voltage ........................................................................................... 2-2
2.2
Protection Subsystem ............................................................................................ 2-2
2.2.1
Power Supply Burden ............................................................................................ 2-2
2.2.2
Current Analog Inputs ............................................................................................ 2-2
2.2.3
Measurement Accuracy ......................................................................................... 2-2
2.2.4
Accuracy of Time Measurement ............................................................................ 2-2
2.2.5
Repeatability .......................................................................................................... 2-3
2.2.6
Transient Overreach .............................................................................................. 2-3
2.2.7
Status Contact Inputs ............................................................................................ 2-3
2.2.8
Trip and Close Outputs .......................................................................................... 2-4
2.2.9
Auxiliary Contact Outputs ...................................................................................... 2-4
2.3
Control Subsystem ................................................................................................ 2-5
2.3.1
Power Supply Burden ............................................................................................ 2-5
2.3.2
Current Analog Inputs (Measurement Circuit Board) ............................................ 2-5
2.3.3
Voltage Inputs (Measurement Circuit Board) ........................................................ 2-5
2.3.4
Measurement Accuracy (Measurement Circuit Board) ......................................... 2-5
2.3.5
Accuracy of Time Measurement ............................................................................ 2-5
2.3.6
Status Contact Inputs ............................................................................................ 2-6
2.3.7
Double Contact Outputs (SD1 and SD2) ............................................................... 2-6
2.3.8
Simple Contact Outputs ......................................................................................... 2-6
2.3.9
Transducer Input/Outputs ...................................................................................... 2-6
2.4
Communications Link ............................................................................................ 2-7
3.
Standards and Type Test .................................................................................... 3-1
3.1
Insulation................................................................................................................ 3-2
3.2
Electromagnetic Compatibility ............................................................................... 3-2
3.3
Environmental Test ................................................................................................ 3-3
3.4
Power Supply ......................................................................................................... 3-3
3.5
Mechanical Test ..................................................................................................... 3-3
4.
Physical Architecture .......................................................................................... 4-1
4.1
General .................................................................................................................. 4-2
