Feature #7204
New DO for measuring the circulating current between two tap changer position
Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Start date:
05/06/2025
Due date:
% Done:
0%
Estimated time:
ID:
Source:
TF Unique ID:
WG10 Proposal:
Estimated Completion:
Discuss in Upcoming Meeting:
No
To discuss in WG10:
No
Short Proposal:
Standard(s):
IEC 61850-7-4
Needs More Information:
No
Assigned TF:
None
Description
During the operation of on load tap changers, there will be an instant of time when the rotary switch will connect two different contacts at the same time yielding a circulating current to flow. This current can be measured by a sensor and be monitored for predictive maintenance (to estimate when changing the rotary switch is necessary). The commutation time should be added as well.
Proposal descriptions
Two new DO in LN SLTC :
- One for circulating current
- One for commutation time
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