Basler Electric BE1-50/51B User Manual

Page 6

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BE1-50/51B Introduction

9252000991 Rev R

Manual

Revision and Date

Change

H, 02/96

 Incorporated changed in series 200 relays that added five

characteristic curves and changed switch SW8-3 functionality.

 Changed Section 5, Testing, to incorporate setting all sections of

switch SW8.

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

 Corrected Figure 4-8.

D, 05/94

 Clarified TIME PICKUP and INST PICKUP specification ranges,

page 1-3.

 Changed Figure 1-2 to also show one ampere unit burden data.
 Changed time characteristics accuracy statement, page 1-6.
 Added (repeated) equation for the characteristic curve time

functions, page 1-8.

 Changed Figure 1-4 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.

B, 09/92

 Page 1-1: Application, deleted reference to dust tight cover.
 Page 1-3: Specifications, TIME Dropout to not less than 95% of

pickup value.

 Page 1-6: Specifications, Time Reset, added statement to insure

sufficient power to power-up relay when using decaying
characteristic.

 Page 1-7: Specifications, corrected Storage Range Temperature

degrees F.

 Page 1-8: 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 4-4: Changed Figures 4-4 and 4-5.
 Page 4-6: Changed Figure 4-8.
 Page 4-9: Time Pickup Test, Step 1, changed 0.45 A to 0.485 A.
 Page 4-11: Time Pickup Test, Step 1, changed 0.09 A to 0.096 A.
 Page 4-13: Added paragraph SETTING THE RELAY.
 Added Section 6.

A, 05/92

 Changed manual title to BE1-50/51B and incorporated engineering

changes accordingly.

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