89
Definite and inverse time-delayed
residual overcurrent protection (TEF)
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The function activates the TEF--START output.
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When inverse time delay is selected, check the operate time at
three points of the inverse characteristic. The formulas for operate
time for different types of inverse time delay curves are shown in
table 10 "Operate time formulas"
.
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IN Operation
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Summary of Contents for REL 531
Page 16: ...10 Note signs KDSWHU 6DIHW LQIRUPDWLRQ ...
Page 44: ...38 Checking the binary I O circuits KDSWHU KHFNLQJ WKH H WHUQDO FLUFXLWU ...
Page 52: ...46 Checking the self supervision signals KDSWHU QHUJLVLQJ WKH WHUPLQDO ...
Page 140: ...134 Testing the interaction of the distance protection KDSWHU 7HVWLQJ WKH SURWHFWLRQ V VWHP ...