Rev.17
55/119
5.6.
Oscillography
The SIA-F relay stores 1 oscillographic log, with a resolution of 16 samples/cycle and a size of
22 cycles, of which the first 3 correspond to the pre-fault.
The oscillography can be downloaded by communications from the front or rear port through the
Modbus protocol (the protocol is documented in this manual). The SICom communications
program allows the oscillography to be downloaded and saved in COMTRADE format (IEEE
C37.111-1991).
The following information is included in each oscillographic log:
Number
Analogue channels
1
Phase A current
2
Phase B current
3
Phase C current
4
Neutral current
The primary current is expressed in amperes.
As well as the analogue magnitudes, the relay stores 32 digital logs, with the same precision of
16 samples/cycle. These 32 bits have the following content:
Summary of Contents for SIA-F
Page 7: ...www fanox com Rev 17 7 119 2 DIMENSIONS AND CONNECTION DIAGRAMS 2 1 Frontal view...
Page 8: ...www fanox com Rev 17 8 119 2 2 Case dimensions The dimensions are in mm CUT OUT PATTERN...
Page 9: ...www fanox com Rev 17 9 119 2 3 Connection diagram 3 Phase CT and neutral CT Connection...
Page 10: ...www fanox com Rev 17 10 119 3 Phase CT and residual neutral Connection...
Page 34: ...www fanox com Rev 17 34 119...
Page 35: ...www fanox com Rev 17 35 119...
Page 36: ...www fanox com Rev 17 36 119...
Page 118: ...www fanox com Rev 17 118 119 NOTES...
Page 119: ...www fanox com Rev 17 119 119...
