Avtron K975A - Voltage and DC Voltage Warnings; Control Panel Overview

Description
Avtron Outdoor Resistive Load Bank • Part Number K975A 994213
2-3
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W A R N I N G
Never exceed the rated voltage as this will cause the Load Bank to
overheat.
Do not apply DC voltages as the contactors do not have arc blowout
magnets.
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Lower voltages may be applied to the load circuit of the Load Bank. The applied kW with a lower
voltage is computed with the following formula:
)
Rated Voltage (
)
Applied Voltage (
kW
=
kW
2
2
RatedApplied

CONTROL PANELS
The K875A 994213 Load Bank utilizes a local panel as the interface between the Load Bank and the
Intelligent Handheld Terminal (IHT). The control panel contains a STATUS: UNIT ON TEST light,
START pushbutton, a STATION SELECT switch, and a STOP/RESET push button. The control
panel also includes the connection for the IHT.
The K975A 994213 Load Bank utilizes two local, integrally mounted control panels. The first local
control panel (997419) is the interface between the Load Bank and the Intelligent Handheld
Terminal (IHT), and is used with the unit is operating under Sigma control. The control panel
contains a STATUS: UNIT ONT TEST light, START pushbutton, a STATION SELECT switch,
and a STOP/RESET pushbutton. The control panel also includes the connection for the IHT.
The second control panel (997420) is a manual control panel that is used as a toggle-switch back-up
for the Sigma control system. A key-switch selects between the Sigma control panel and the Manual
control panel.
The manual control panel contains the OPERATION CONTROL Key-Switch, a CONTROL
POWER Switch, the BLOWER START and STOP pushbuttons, as well as a MASTER LOAD
switch, and toggle switches of 2 x 50 KW and 24 x 100 KW. Indicators include lamps indicated