Page 59 - SOS Catalog
P. 59


                                                                             Rental Duty 2500KW Load Bank System
                                                                                                                  Page  3

                  The Load Bank is a completely self-
                  contained, freestanding unit which
                  includes all resistive load elements,
                  load control devices, load element
                  branch circuit fuse protection, main
                  load bus and terminals, cooling system,
                  control power supply, unit controller and
                  malfunction detection system and type

                  System Protection

                  Sensors, alarms (alarm message on
                  remote operator interface terminal),
                  lock-outs as appropriate, for the
                  •  Fan failure, each of two fans
                  •  High exhaust temperature, each of
                    two fans
                  •  High intake temperature
                  •  High interior temperature, sensed at
                    three points
                  •  Louver open/closed, each of eight
                  Load Elements

                  Simplex Powr-Web: Open wire,
                  helically wound, chromium alloy, load   Inductive elements: Non-saturable,   Control Wiring
                  element thermally derated to 60%. 5%   air-gap type, iron-core power inductors.
                  tolerance, 2% balance. .995 p.f. Element   5% tolerance, 1% waveform distortion,   105°C
                  wire mechanically supported over    0.05 power factor, 150°C rise, 220°C
                  entire length such that if a wire should   insulation.                  Power Connection
                  break, the broken wire segments will
                  not short to adjacent conductors or to   Basic Dimensions               Plated bus bar behind hinge-up access
                  ground. Load elements are individually                                  door.
                  serviceable and replaceable in the field   96.5”W x 110.25”H x 130”D.
                  without major disassembly of the load                                   Control Connection
                  bank. The load elements are installed   Load Control
                  in slide-out, removable trays such that
                  any element is easily accessed without   Branch circuit contactors, each 50 KW   Connector plugs with recessed
                  disturbing any other elements.      resistive circuit max or each 75kvar   protective well.
                                                      inductive circuit max. Inductive circuits
                  All materials used in the mounting   are double-break. Contactors have   Cooling
                  and installation of the load elements   enclosed silver surfaced contacts,
                  are suitable for the temperatures   120V coils; electrically operated and   Forced air, horizontal airflow. 2 x 10HP,
                  encountered, in both normal operation   electrically held.              3-phase, TEFC motor direct driving cast
                  and under fault conditions. Materials                                   aluminum fan blades. Circuit breaker
                  in direct contact with the element wire                                 combination motor starter.
                  are ceramic. Other materials which   Element Circuit Protection
                  structurally support the load elements                                  Enclosure
                  and/or which form the hot air duct   Branch circuit fuses, each 50KW
                  within which the elements are mounted   resistive branch circuit max , each   Type 3R control section; Type 3R power
                  are steel, stainless steel or aluminum.   75kvar inductive branch circuit max.   section. Epoxy primed, polyurethane
                  Plastics and glass reinforced plastic   600v, 200kAIC, current limiting type.  finish coating, dark gray. Power
                  materials and flammable materials are                                   operated ventilation louvers. Lifting
                  not used for installation, support and   Power Wiring                   eyes, forklift channels, hinged, lockable,
                  mounting of load elements or in the                                     access doors with flush latches.
                  construction of the load bank hot air   150°C insulated; color-coded and
                  duct.                               numbered.

                   © 2016 Simplex Onsite, Inc. All Rights Reserved.  SIMPLEX ONSITE INC.
                             Printed in the USA  •  1408-01.03  • 855-SOS-LIVE  • 855-767-5483
                        Design subject to change without notice.  Rental Centers: Springfield, IL; Atlanta; Baltimore; Boston; Denver; Houston; Minneapolis

          SOS-LoadCube-R-1408-01.03.indd   3                                                                         7/11/2016   1:27:24 PM
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