BECKWITH ELECTRIC M-6280A, Инструкция

Страница: 6 / 462

–5–
M-6280A Digital Capacitor Bank Control
*Only available with VAr and Current Control Mode option.
Automatic VAr Control Mode Option*:
The control will make its Open and Close switching decisions based
on measured line VAr conditions and Time and/or Temperature overrides when applied. VAr excursions beyond
the set value for greater duration than the time delay will result in appropriate control operation. The control can
be ordered with either a 5 A CT or Line Post Current Sensor inputs to provide phase current measurement to
the control.
– Control Open VArs: –100 % to 100 % of single-phase capacitor Bank size in 1 % increments
– Control Close VArs:
0 % to 100 % of single-phase capacitor Bank size in 1 % increments
– Close and Open Time Delays: Definite or Inverse; adjustable from 0 seconds to 600 seconds,
in 1 second increments. Timer reset can be selected as instantaneous or integrating.
– Time Override : In the Auto Control Mode a Time Override can be applied to capacitor bank Open
and Close operations. The Time Override feature considers Start Date, Start Time, End Date, End
Time, Duration, Recurrence Pattern and a Range Of Occurrences to implement the override.
– Temperature Override
: In the Auto Control Mode a Temperature Override can be applied to capacitor
bank Open and Close operations. The Temperature Override feature considers sensed ambient
temperature and implements override action (Open, Close or None) for either above or below
temperature setpoint conditions.

NOTE
: Time and Temperature Overrides can be overridden by Control Mode Limits.
Automatic Current Control Mode Option*: The control will make its switching decisions based on measured
Line Current conditions and Time and/or Temperature overrides when applied. Current excursions beyond the
set value for greater duration that the time delay will result in appropriate control operation. The control can be
ordered with either 5 A CT or Line Post Sensor inputs to provide phase current measurement to the control.
– Control Open Current: Adjustable from 10 to 600 Amps
– Control Close Current:
Adjustable from 10 to 600 Amps
– Close and Open Time Delays: Definite or Inverse; adjustable from 0 seconds to 600 seconds,
in 1 second increments. Timer reset can be selected as instantaneous or integrating.
– Time Override : In the Auto Control Mode a Time Override can be applied to capacitor bank Open
and Close operations. The Time Override feature considers Start Date, Start Time, End Date, End
Time, Duration, Recurrence Pattern and a Range Of Occurrences to implement the override.
– Temperature Override
: In the Auto Control Mode a Temperature Override can be applied to capacitor
bank Open and Close operations. The Temperature Override feature considers sensed ambient
temperature and implements override action (Open, Close or None) for either above or below
temperature setpoint conditions.

NOTE
: Time and Temperature Overrides can be overridden by Control Mode Limits.
Remote Control Mode: In this mode, the control receives commands through communications for Closing or
Opening of the Capacitor Bank.
Remote Control Mode Limits: These limits can be disabled or enabled. If control operation will result
in voltage outside of these limits operation will be
blocked
and notification will be sent to the sender. If
measured voltage is outside of these limits, the control will initiate an operation in the direction to return
voltage within limits.
– Overvoltage Limit: Adjustable from 95.0 to 140.0 V in 0.1 V increments
– Undervoltage Limit:
Adjustable from 95.0 to 140.0 V in 0.1 V increments
– Voltage Limits Timer: Definite or Inverse; adjustable from 0 seconds to 600 seconds, in 1 second
increments. Timer reset can be selected as instantaneous or integrating.