
Multi-Function Control ETMFC610
http://www.entecene.co.kr
193
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HANCED
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HNOLOGY
Protection Elements Block Diagram - ANSI Designations
Figure 8-6.
Protection Elements Block Diagram
All overcurrent protection function consist of dual-elements ((+) and (-)) of individual operations.
It can be operated in several ways depending on the configuration of the line system and the user's
request. Several application example of dual overcurrent protection elements are as follows;
1) Ring Line System Application
By using directional elements and dual overccurent protection elements ((+) and (-)), it is possible
to protect simultaneously both sides of the source line on ring line system operation. After setting
the directional type as forward, when using the dual-elements (function is set to ENABLE), The (+)
element does fault protection about the forward direction and the (-) element does the fault
protection about the reverse direction.
Содержание ETMFC610
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