DOC. MIE91093 Rev. 1.34 Page 17 of 145
There are many families of time-dependent overcurrent relays.
Appendix 1 gives information about how to design the nominal
curve, staring from the setting parameters.
For the test of undercurrent relays, the following notes are to
be used the other way round: the drop-off test becomes the
threshold test; the threshold test becomes the drop-off test.
The following is the connection schematic.
1.1.2. Connection to current outputs
. Power-on T1000 PLUS, acting on switch (2): the internal light
turns on.
. Set the current adjustment knob (6) completely counter-
clockwise.
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