Improvement #7095
DO "CECtl" and "Auto" of LN CCGR share a close semantic description
Added by Christophe Ghafari 4 months ago.
Updated 5 days ago.
Category:
Standard clarification required
Discuss in Upcoming Meeting:
No
Needs More Information:
No
Description
In IEC 61850-7-4, the LN CCGR contains 2 DO called "CECtl" and "Auto" (CDC SPC) sharing a close semantic description :
- CECtl : "(controllable) If true, automatic control of complete cooling group (pumps and fans) has been enabled, otherwise the control has been switched back from automatic to manual."
- Auto (inherited from AutomaticControlLN) : "(controllable) If true, output circuit of the automatic controller has been enabled (control is automatic), otherwise control is manual."
Clarification is required.
- Discuss in Upcoming Meeting changed from No to Yes
- Category set to Standard clarification required
- Status changed from New to In Progress
- Assigned TF 61850-90-14 FACTS, HVDC & Powerconversion added
- Assigned TF deleted (
None)
We need an explanation from 90-14 of the difference between "CECtl" and "Auto" because the descriptions are quite similar.
We will contact "Gaurav ROY" to ask the question.
- Standard(s) changed from IEC 61850-7-4 to IEC 61850-90-14
- Standard(s) changed from IEC 61850-90-14 to IEC 61850-7-4
- Assigned TF 61850-7-4 added
- Assigned TF deleted (
61850-90-14 FACTS, HVDC & Powerconversion)
CECtl has been defined in 7-4, so the question must be sent to 7-4
Section 6.5 of TR IEC 61850-90-14, "cooling system use-case," describes a generic cooling system for an HVDC or a statcom system.
In an HVDC or FACTS system, multiple cooling systems or pumps are aggregated into a protection IED for an HVDC or STATCOM system, which is aggregated into a "complete cooling group." The Data Object "CECtl" in Logical Node Class "CCGR" is for the complete cooling group rather than an output singular automatic controller, which DO "Auto" describes.
In my opinion, the DO definition also conveys it, i.e
Auto (inherited from AutomaticControlLN) (controllable) If true, output circuit of the automatic controller has been enabled (control is automatic), otherwise control is manual.
CECtl (controllable) If true, automatic control of complete cooling group (pumps and fans) has been enabled, otherwise the control has been switched back from automatic to manual.
It is recommended to follow work of 90-3 where several new LN will be introduced related to the cooling systems (power transformers, ...).
- Status changed from In Progress to Closed
- Discuss in Upcoming Meeting changed from Yes to No
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