Basler BE1-25A Instruction Manual - Option Modules,
BE1-25A
7
OPTION MODULES,
continued
Option V3 provides a pulsed contact closure like the V2
Option except that when the voltage difference is within
20 volts, the correction pulse width is reduced linearly
with voltage difference. This reduction in correction
pulse duration reduces “hunting” and overshooting.
FREQUENCY MATCHING OPTION
The Frequency Matching Option described below
includes a Bump Pulse Circuit to reduce the time
required to move the phase angle when the generator
frequency is matched to the bus but the phase differ-
ence is greater than permitted for synchronization. The
Bump Pulse causes the governor to change speed
slightly to decrease the phase difference.
Option F5 provides a pulsed contact closure like the F1
option except that when the frequency difference is less
than four times the max slip setting, the correction pulse
width is reduced linearly with slip frequency.
This option is particularly useful on units with unstable
governors because the speed correction pulse width
responds dynamically, adapting to instantaneous
changes in slip frequency.
Note: The previously available F1 and F3 frequency
matching options are no longer available. These func-
tions can be achieved with the F5 option. Request
Application Note PC-2501, or refer to the Instruction
Manual for more information.
DEAD BUS OPTION
The Dead Bus Option, when installed, monitors the bus
voltage and compares it with a front-panel-adjustable
limit setting (10 to 40 Vdc). When this option has been
enabled and the monitored bus voltage is less than the
dead bus voltage setting, the breaker closure output
relay is immediately energized. This function may be
enabled by closing a contact across the terminals so
labeled in Figure 4.
SPECIFICATIONS
VOLTAGE SENSING
The two sensing inputs–for the generator and the bus
voltage–are designed to operate in the range of 70-150
Vac, 50/60 Hz. Burden is less than 6.0 VA for the
generator input and less than 2.0 VA for the bus input.
POWER SUPPLY
Power for the internal circuitry requires an external
source rated at 90-132 Vac, 50/60 Hz (single phase), or
70-150 Vdc. Burden: Less than 20.0 VA.
BREAKER CLOSING CONTACT:
Make and carry 30 A at 250 Vdc for 1 second, 7 A
continuously, and break 0.3 A at 250 Vdc. L/R = 0.04.
LOCKOUT CONTACT:
Make and break 5 A at 250 Vac (80% PF). 5 A at 28
Vdc (resistive) and 0.5 A at 120 Vdc (resistive).
VOLTAGE AND FREQUENCY (SPEED) CORRECTION
CONTACTS:
Make and break 5 A at 250 Vac (80% PF), 5 A at 28
Vdc (resistive) and 0.5 A at 120 Vd11c (resistive).
RELAY FAIL CONTACT:
Make and break 5 A at 250 Vac (80% PF), 5 A at 28
Vdc (resistive) and 0.5 A at 120 Vdc (resistive).
SURGE WITHSTAND CAPABILITY:
The unit has been qualified to ANSI/IEEE C37.90.1-1989
Standard Surge Withstand Capability Tests; (Oscillatory
and Fast Transient), IEC 255-5 Impulse Test and Dielec-
tric Test.
WITHSTAND CAPABILITY TO RADIATED ELECTRO-
MAGNETIC INTERFERENCE (RFI):
The unit maintains proper operation when subjected to a
radiation intensity of 10 V/m over the frequency range of
25 to 1000 MHz, in accordance with ANSI/IEEE
C37.90.2.
AGENCY CERTIFICATIONS
UL Listed per Standard 508, UL File Number E97033.
CSA Certified per Standard CAN/C.S.A.-C22.2 No. 14
CE Qualified
TEMPERATURE
Operating Range -40°C to +70°C (-40°F to +158°F)
Storage Range -65°C to +100°C (-85°F to +212°F)
SIZE AND WEIGHT
19-inch rack mount per Figure 5.
16 pounds net.