591   SIML

Created: 17 Jan 2008

Status: In Force (green)

Part: Part 7-4 (2003)





Category: Issue for edition 2 of this part


Issue #1

SIML.H2Alm misses a SIML.H2LevMax and SIML.MstAlm misses a SIML.H2OLevMax. (see SIML.InsAlm and SIML.InsLevMax)

Issue #2
Besides H2, the liquid insulation medium (oil) can contain also other fault gases: CO, CH4, C2H4, C2H6, C2H2.
Simmilar attributes for these (as H2,H2Alm, ?{H2LevMax}? ) would be needed.


Discussion Created Status
See CDV Ed2 24 Jun 08 In Force (green)
14 Feb 08 Ballot Period
The supervision of fault gases could be done by the range attribute in MV class. The quality of the overall insulation is important for the operator and therefore indicated by SPS alarm (e.g. MstAlm). No additional data (APC) needed. 14 Feb 08 Discussion (red)
Correction to reported issue #1:

Actually SIML.H2ALM and SIML.MstAlm would need a SIML.H2LevMax and
SIML.MstLevMax of APC type and not SPS as SIML.InsLevMax is.

28 Jan 08 Discussion (red)
#1 You are right. For edition 2, these data should be discussed.

#2 In the current draft of edition 2 we have already included all these MV for fault gases (H2, N2, CO, CO2, CH4, C2H2, C2H4, C2H6, O2).
22 Jan 08 Discussion (red)


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