Disturbance recorder channel identification - Arc protection - Merging unit - Motor protection - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Interconnection protection - Busbar differential protection (high impedance) - Generator protection - Power management/Load shedding - Back-up protection - IEC 60870-5-103 Communication Manual - 615 series Relion Protection and Control - 5.0 FP1 IEC - IEC - 22.05.2023

615 series IEC 60870-5-103 Communication Protocol Manual

IEC 60870-5-103 defines channels (analog data) and tags (digital data) to be transferred from a disturbance recorder file. The IEC 60870-5-103 file transfer is random access, meaning that the client can select exactly what information to read from the file.

The standard defines the identification, ACC (actual channel), for eight channels, numbered 1...8. For example, when a client requests channel 1, it always means Phase current L1. The IED supports all the eight IEC 60870-5-103 standard channel numbers and in addition defines some private channel numbers. Private channel numbers starts from ACC 64 as is defined by the standard.

Table 1. Disturbance channel identification
ACC Number Signal
1 Phase current IL1-A
2 Phase current IL2-A
3 Phase current IL3-A
4 Neutral current Io-A
5 Phase voltage U1-A or phase-to-phase voltage U12-A
6 Phase voltage U2-A or phase-to-phase voltage U23-A
7 Phase voltage U3-A or phase-to-phase voltage U31-A
8 Neutral voltage Uo-A
Private channel numbers
64 Neutral current Io-B
65 Phase current IL1-B
66 Phase current IL2-B
67 Phase current IL3-B
68 Neutral voltage Uo-B
69 Phase voltage U1-B or phase-to-phase voltage U12-B
70 Phase voltage U2-B or phase-to-phase voltage U23-B
71 Phase voltage U3-B or phase-to-phase voltage U31-B

Disturbance recorder channels are the physical measurement inputs to the IED. It depends on the IED type if all the disturbance recorder channel signals are available or not. The IED may measure voltages either between phase and ground or between phases. The contents in ACC 5...8 and 69...71 are coupled directly to these voltage measurements.

Note: The default setting of the native disturbance recorder supports the channels, meaning physical analog input channels, listed in Table 1. User-defined channels in the 60870-5-103 files appear as ACC=255 (unknown channel).
Note: Disturbance recorder channels can be selected from the disturbance recorder configuration settings. Only the selected channels are included in the 60870-5-103 files.