Basler BE1-DFPR Instruction Manual Download

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BE1-DFPR Functional Description

3-11

logic can return to RESET, the 79 reset timer must time out with the breaker closed. If desired, auxiliary
setting 1 can be automatically enabled if the breaker stays open longer than the auxiliary 1 set time.
Auxiliary 1 set time may be changed or disabled from the communication port using the INSTALLATION
SETTINGS screen under the REVIEW/EDIT SETTINGS menu as described in publication 9 2315 00 991,
Terminal Displays and Settings.

To exit auxiliary settings 1 with the desired new settings, the selected user programmable contact sensing
input must be momentarily closed. If auxiliary setting 1 was entered automatically via the auxiliary 1 set
time, then the breaker must remain closed for ten minutes for the relay to return to normal settings.

Auxiliary Setting 2 (EP), 3, And 4

Auxiliary setting 2 has priority over all other Auxiliary settings. Auxiliary settings 2, 3, and 4 are enabled
when the selected user programmable contact sensing input is momentarily closed. When the auxiliary
setting is enabled or disabled, the reclosing logic goes to LOCKOUT. No automatic mode exists for auxiliary
2 setting. To exit the auxiliary settings mode with the desired new settings, the selected user
programmable contact sensing input must be momentarily closed.

OVERCURRENT PROTECTION

Sensing Configurations

Three Phase and Neutral currents

The relay is available with a choice of three voltage sensing configurations:
- Three-phase, four wire wye
- Three-phase, three wire delta
- Single-phase using phase B voltage and current

BE1-DFPR relays include three independent overcurrent functions for each sensed current input:

Time Overcurrent (51, 51N)

Phase settings adjustable over the range of 0.5 to 12 amperes in 0.1 ampere increments for a 5
ampere sensing input range and 0.1 to 2.4 amperes in 0.02 ampere increments for a 1 ampere
sensing input range.

Neutral settings adjustable over the range of 0.5 to 12 amperes in 0.1 ampere increments for a 5
ampere sensing input range and 0.1 to 2.4 amperes in 0.02 ampere increments for a 1 ampere
sensing input range.

Independent Phase and Neutral Timing characteristics.

Choice of 12 standard timing characteristics.

Choice of instantaneous or integrating reset characteristics. Integrating characteristic is in effect
when R follows one of the curve types S, L, D, M, I, V, E, A, B, C, G, or F.

Instantaneous Overcurrent (50, 50N)

Phase settings adjustable over the range of 0.5 to 99 amperes in 0.1 ampere increments and 100
to 150 amperes in 1 ampere increments for a 5 ampere sensing input range and 0.1 to 30 amperes
in 0.02 ampere increments for a 1 ampere sensing input range.

Neutral settings adjustable over the range of 0.5 to 99 amperes in 0.1 ampere increments and 100
to 150 amperes in 1 ampere increments for a 5 ampere sensing input range and 0.1 to 30 amperes
in 0.02 ampere increments for a 1 ampere sensing input range.

Fixed Time Overcurrent (50T, 50TN)

Phase settings adjustable over the range of 0.5 to 99 amperes in 0.1 ampere increments and 100