Basler Electric BE1-50/51M User Manual
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BE1-50/51M Introduction
9252000990 Rev R
Manual
Revision and Date
Change
G, 10/95
Corrected minor typographical errors in Section 1 and 2.
Corrected Table 2-1, locator item K, Function.
Changed Figure 5-2 and all testing target current source references
from 0.2 ampere to 1.0 ampere.
Changed Table 7-1 to add ECA and date data.
F, 02/95
Changed all sections to reflect 200 series relay additions and relay
modifications that deleted P2 and P3 jumpers and added switch
SW8.
Changed Specifications, TIME and ISNT PICKUP accuracy; Output
Circuits, and Isolation (Dielectric Test).
E, 09/94
Added new Figure 4-1 and bumped all following figures.
Corrected old Figure 4-3, new Figure 4-4.
D, 05/94
Changed continuous current sensing input rating and clarified TIME
PICKUP and INST PICKUP specification ranges, page 1-4.
Changed Figure 1-3 to also show one ampere unit burden data.
Changed time characteristics accuracy statement, page 1-7.
Added (repeated) equation for the characteristic curve time
functions, page 1-9.
Changed Figure 1-5 to show one ampere unit starting data.
Separated Section 4, Installation, into Section 4, Installation, and
Section 5, Testing, and bumped all subsequent sections.
C, 06/93
Added column for CT secondary to Table 1-1 and UL Recognition
and CSA Certification to specifications.
Page 3-2: Deleted “or reset” from last sentence in paragraph
Outputs. Changed from “The targets will not operate or reset…” to
“The targets will not operate…”
Page 4-1: Corrected dielectric test leakage current per terminal and
changed rack mounting plate part number from “9252000024” to
“9252012001”.
Page 4-3: Added BE1-50/51M, vertical model rear view to Figure 4-
3.
B, 09/92
Page 1-1: Application, deleted reference to dust tight cover.
Page 1-4: Specifications, TIME Dropout to not less than 95% of
pickup value.
Page 1-7: Specifications, Time Reset, added statement to insure
sufficient power to power-up relay when using decaying
characteristic.
Page 1-8: Specifications, corrected Storage Range Temperature
degrees F.
Page 1-9: Defined British Standard curve types.
Page 2-1: INST and TIME PICKUP selectors, added statement that
changing selectors while relay is in service may cause tripping.
Page 4-7: Time Pickup Test, Step 1, changed 0.45 A to 0.485 A.
Page 4-9: Time Pickup Test, Step 1, changed 0.09 A to 0.096 A.
Page 4-11: Added paragraph SETTING THE RELAY.
Added Section 6.
A, 05/92
Changed manual title to BE1-50/51M and incorporated engineering
changes accordingly.
―, 04/92
Initial release.