9171300990 Rev R
BE1-87T Introduction
v
Manual
Revision and Date
Change
F, 03/93
•
Changed formula pages 5-4, 5-10, 5-16, and 5-22 from I = the square
root of K over t, to I = K over the square root of t.
E, 01/93
•
Manual was revised to incorporate a revision in the relay that made
sensing input type F obsolete and included the 1 A, 60 hertz and 5 A,
50 hertz model relays.
•
Section
5,
Test Setup,
diagrams were changed to clarify relay
connections.
•
Added three relay Internal Connection diagrams.
•
Changed unrestrained maximum time to trip, reference old Tables 5-4
and 5-8 (new Tables 5-4, 5-8, 5-12, and 5-16).
•
Renamed Section 7,
Manual Change Information
to Section 8,
Manual Change Information
and added new Section 7, Difference
Data to support BE1-87T relays with Sensing Input Type F.
D, 06/92
•
Manual was revised to include the 1 A, 50 Hz model relay and
reformatted to a new Instruction Manual style.
•
Additional connection diagrams were included in Section 4 and test
plug information was added to Section 6.
•
Minor typographical errors were also corrected.
C, 03/91
•
Table 5-1 was expanded and Figure 5-4 Test Setup illustration was
added.
•
Miscellaneous
editing.
B, 03/91
•
Manual (with the exception of Section 2) was rewritten for ease of
use.
A, 06/90
•
Figure 3-1 (Functional Block Diagram) corrected.
•
Formula in caution note (formerly on p. 4-17, now on p. 5-2)
corrected.
•
Miscellaneous
editing.
www
. ElectricalPartManuals
. com
