Avtron Power Solutions Digital Binder

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Model 7900 Specifications

LOAD CONNECTION COMPARTMENT (SEE DETAIL)

0.562 [14] DIA 30 HOLES/PH

1.75 [44] TYP

C B A

1.75 [44] TYP

HINGED ACCESS DOORS SHOWN OPEN

LOAD CONNECTION COMPARTMENT DETAIL ACCESS OPENING FOR LOAD CABLES

96.00 [2438.00]

VERTICAL EXHAUST AIR

EXHAUST HATCHES (MAY BE REMOVED FOR SHIPPING)

17.00 MAX [432.00]

BOLTED & HINGED ENTRY DOOR FOR SERVICE/ACCESS

BOLT-ON ACCESS PANELS

EXTERNAL BLOWER/ CONTROL POWER CONNECTION BOX

102.00 [2591.00]

CONTROL COMPARTMENT

AIR INTAKE (BOTH SIDES) TRAVEL COVERS NOT SHOWN

TRAVEL COVERS BOTH ENDS SHOWN OPEN

FORKLIFT POCKETS

All dimensions are in inches [millimeters]. Specifications subject to change without notice. Optional Accessories • Control Power Transformer • NEMA 4 Type Remote Control Panel Enclosure • Automatic Load Control

Resistor Elements Avtron load banks use helically wound chromium alloy Helidyne elements. Elements are fully supported across their entire length by segmented ceramic insulators on stain less steel rods. These elements are designed to operate at approximately 1/2 of their maximum continuous wire rating. Elements are positioned within the cool ing air stream for optimal performance. Changes in resistance due to temperature are minimized by maintaining conservative watt densities. The overall load tolerance of the 7900 load bank is -0 +5%. This ensures that advertised kW is delivered at rated voltage. The elements are continuously rated at the specific voltage. Tests at lower voltages with a corresponding reduction in overall rating may be carried out. Reactors The reactive elements are of non-saturating single and 3 phase iron-core construction impregnated with high dielectric varnish. Safety Features A differential pressure switch is interlocked with the load application controls to prevent load from being supplied if cooling air is not present. An overtemperature switch is provided to sense the load bank exhaust. This switch is interlocked with the load application controls to disable load from being supplied if an overtemperature condition is present.

The fan motors are protected with fuses and overloads. The exterior of the load bank has appropriate warning and caution statements on access panels. Internal access is restricted by bolt on exterior panels. The air intake on the 7900 is designed to prevent objects greater than 0.50" diameter from being ingested into the unit. Vertical air discharge is provided and exhaust air is directed upward away from personnel. Ambient Temperature The 7900 load bank is designed for continuous duty cycle with no limitations. The ambient temperatures range is -20°F to 120°F (-28°C to 50°C). Mounting The 7900 is designed for outdoor installation on a concrete pad, structural base or trailer. Power Terminals and Cable Entry The power terminals are located behind a hinged access panel. The 7900 has a recommended conduit entry area under neath the power terminal assembly to facilitate load cable installation.

• Digital Monitoring • Digital Load Control • Remote I/O Control • Pilot Relay Control • Arctic Rating (low temperature)

Documentation - Operating Manual

A comprehensive operator's manual is supplied electronically via a USB drive. Sections include: Safety, Installation, Operation, Maintenance, and Trouble shooting. Testing and Standards Avtron load banks comply with NEMA, NEC, and ANSI standards. Quality control system is certified to ISO9001 standards. Weight and Dimensions Dimensions (approx. in/mm) Weight Height Width Length 102/2591 96/2438 * * * NOTE: Length and weight values are dependent on capacity and voltage.

Avtron Power Solutions 9450 Allen Drive, Suite B, Cleveland, Ohio 44125, U.S.A.

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