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Emerson Network Power
Avtron • 6255 Halle Drive, Cleveland, Ohio 44125, U.S.A.
216-573-7600 • FAX: [phone] • [e-mail]
Avtron K711H
Resistive Load Bank - 5 to 500 KW
ADMS™ and Helidyne™ are trademarks of Avtron. Specications subject to change without notice.
©2015 Emerson Network Power Bulletin 600• Rev. B
Specications subject to change without notice.
LOAD BANK (REF)
LOAD BANK (REF)
GEN SET (REF)
GEN SET (REF)
CONDUIT ENTRY OPPOSITE END
TO BE DRILLED BY CUSTOMER
H
AIRFLOW
CONDUIT ENTRY TO BE DRILLED BY CUSTOMER
Depth
W
W + 20.0 [508.00]
H + 4.00
[101.60]
TOP VIEW
of generator enclosure
load bank
SIDE VIEW
of generator enclosure
FRONT of
generator
enclosure
All dimensions are in inches [millimeters].
Options
• Control Power Transformer
• Automatic Load Step Controller
• ADMS™ Digital Metering System, Remote
Mounted
• Remote Control Panel with Enclosure
• Remote I/O for Interface to Switch Gear
NOTE Designs for international 50/60 Hz voltages are also
available. Consult factory.
Construction
Formed aluminized steel frame provides a
rigid enclosure to match the height and width
of the engine radiator or duct. Lifting eyes are
included to simplify installation. The standard
depth is 13" [330.2]. For applications where
the amount of load element KW required
exceeds the available 13" depth, then a
“double-deep” K711A can be used instead,
with a 26" [660.4] depth. Designed for out-
door operation.
Control Power
The Load Bank requires exter nal control
power of 120 VAC, single phase, 50/60 Hz.
A control power transformer is available
as an option for sites where 120 VAC is
not readily available.
Cooling
The Load Bank does not have its own cooling
system. Instead, it relies on cooling air from
the engine driven radiator fan or separately
powered duct blowers. A built-in thermal
switch drops all load if an overtemperature
condition is detected.
Controls
The remote control panel contains a POWER
ON-OFF switch, a MASTER LOAD ON-OFF
switch, and individual load step toggle
switches for application of individual load
sections. A MANUAL/AUTO switch is also
provided (if the optional automatic load
step controller is included). A remote rack-
mounted control panel with wall-mounted
enclosure is available as an option.
Resistor Elements
The fully supported Avtron Helidyne™ resistive
load elements are made of corrosion resistant
chromium alloy wire and are engineered to
operate at conservative temperature ratings.
This provides more stable loading, extends re-
sistance element operating life, and eliminates
the need for a cool down period after load
bank operation.