Portable
LoadStar
80KW
LoadStar
Portable Load Bank
The Simplex LoadStar
Portable Load Bank is a highly versatile test instrument specially
designed for manufacturers, dealers and users of small AC power
systems, to 80KW nominal. It is suitable for testing engine generators,
wind generators, UPS systems, ground power units, auxiliary power
units, static inverters or virtually any other AC power source
on the production line, in the service shop or in the field.
It can be applied at all common AC voltages to 480V maximum,
50-60-400 Hertz, single or 3-phase.
The LoadStar is a fully self-contained and portable testing
system. It includes an integral cooling fan and control circuits,
both of which can operate from generator power up to 240V, 60
Hertz (to 480V, 60 Hertz optional). Above 240V or at 50/400 Hertz,
the Load Bank fan and control circuits can be powered from a
15A, 120V wall outlet. An external power cord with plug is included.
An optional 480:120V fan/control power transformer is available
to extend the internal fan/control power range to 480V, 60 Hertz.
The LoadStar control panel includes test instrumentation,
load application switches, operation indicator lights and fan/control
power switch. The Load Bank includes rugged “Powr-Web”
load elements, load control contactors, branch circuit fuse protection
of the load elements, high temperature power wiring, cooling
fan with circuit breaker, control power fuses. The Load Bank
is protected against fan failure, high intake air temperature,
high exhaust air temperature, and overvoltage. The unit includes
a 12’ connection cable set.
Features
Portable, self-contained load
and control system
Utilizes the UL Recognized “Powr-Web” load element
Branch circuit fuse protection of load elements
Magnetic contactor control of load
Apply/remove load steps in small increments
Use at all common 50, 60 or 400 Hertz voltages, to 480V AC
150°C XLP insulated power wiring
12' connection cable set
Operate fan and control circuits from either generator power
or from a common 120V wall outlet
Forced air cooled, integral cooling fan
Fan motor protected by circuit breaker
Control circuits fused
Comprehensive malfunction detection system: Over temperature
and fan failure protection, Overvoltage protection
Continuous duty
NEMA-1 drip proof enclosure
Lifting eyes, casters and forklift channels included
Capacity 80KW Voltage Operator selectable: High: 250-480V AC, 3-ph. Low: 12-240V AC, 1-ph. or 3-ph. Frequency 50, 60, 400 Hertz Temperature Rating 120°F max. intake 275°F max. exhaust Control Power Operator selectable: External 120V AC, 1-ph., 60Hz, 15A Internal 240V AC, 1-ph., 60Hz, 3W 240V AC, 3-ph., 60Hz, 4W 120V AC, 1-ph., 60Hz, 2W Optional Internal, above plus: 480V AC, 3-ph., 50, 60Hz or 416V AC, 3-ph., 400Hz Cooling 4000 CFM Duty Cycle Continuous Dimensions 26.25” W x 49.5” H x 48” D Weight 500 lbs. Enclosure NEMA-1 Drip-proof Options KW Meter Running Time Meter Vinyl Cover Weatherproof Enclosure 480V, 3ø, 60Hz Internal Power 400Hz Meters 400Hz Internal Power Sales Bulletin Dimensions and Key Features Diagram |
Powr-Web Load
Element
Simplex Load Banks utilize the
UL Recognized, “Powr-Web” load element. The “Powr-Web”
is an advanced design, air-cooled power resistor specifically
designed for application to load bank systems. The “Powr-Web”
is conservatively operated at half the maximum temperature rating
of the alloy and features a short-circuit-safe design based on
continuous mechanical support of the resistor by high temperature,
ceramic clad stainless steel rods. The “Power Webs”
are assembled into discrete trays which are assembled in a vertical
“stack.” Each tray in the “stack” is independently
serviceable without disturbing adjacent trays.
Ratings
3333W at 120V
4170W at 139V
8333 watt 240/480V
16,777 watt at 480V
Specifications
Alloy: FeCrAl
Max. continuous temp. rating: 1920°F
Maximum operating temperature as applied in Load Bank: 1080°
F
Cool down time from operating to ambient temperature: 10 seconds
Construction
Calibrated to specific
ohm value
Welded lugs on each end
All load elements are continuously supported by vibration resistant,
ceramic clad, stainless steel throughrods
Branch Circuit Fuse Protection
The load of a Resistive Load Bank consists of a dense array of open, uninsulated power resistors mounted within a cooling air stream. Since the elements are electrically live, it is possible for a foreign object to penetrate the element array and create a short circuit of adjacent elements or a short to ground. Since the elements are densely packed, it is possible for a short circuit, once started, to rapidly propagate through the entire element array. As a Load Bank represents a relatively large amount of power concentrated within a relatively small volume, a self-propagating, cascading short circuit would have catastrophic results.
Simplex virtually eliminates
the dangers of short circuit through the use of branch circuit
fuse protection of the load elements. Per NEC 110-10, protective
devices shall clear a fault without “extensive damage”
to the circuit components. A Simplex Load Bank is divided into
branch circuits of not more than 50 KW each.
LOADSTAR PORTABLE LOAD BANK CAPACITY DETAIL |
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LOADSTAR PORTABLE LOAD BANK LOAD STEP DETAIL |
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