Large
Portable
dynaMITE
155KW
143KW
107KW
102KW
dynaMITE 155
Portable Load Bank
The Simplex dynaMITE 155
Portable Load Bank provides highly versatile load-test capability
for the manufacturers, distributors and users of small-to-medium
size AC power systems to 155KW nominal.
The dynaMITE 155 is suitable for production line, service
shop or field testing of engine generators, UPS systems, ground
power units, auxiliary power units, static inverters or virtually
any other AC power source. This load bank can be applied to all
common AC voltages to 480V maximum, 50-60-400Hz, single or 3-phase.
The dynaMITE 155 is a fully self-contained test instrument
which includes test instrumentation, connection cables, high
capacity cooling system, rugged load elements, complete load
application control devices, and automatic system protection
devices.
The dynaMITE 155 is compact and fully portable and includes
lifting eyes, forklift channels, and moving handles. Connection
cables are conveniently stowed in a cable compartment behind
a hinged door. All instruments and controls are protected by
hinged panel covers.
Control Panel
AC Meters, 3½”, +/- 2%
Voltmeter, 0-600V, 50-60Hz
Ammeter, 0-200/400A
Combination Volt-ammeter Switch
Frequency Meter, Direct Reading (Dial)
Type 45-65 Hz
Voltage Selector Switch
(12-240V/250-480V)
Fan/Control Power Switch
Load Control Switches
Master Load Application Switch
Load Step Switches
“Normal Operation” Neon Indicator Light
“Internal Fan/Control Power Available” Neon Indicator
Light
Failure Detection System, Neon Alarm Lights and Lockout
Fan Failure
High Intake Temperature
High Exhaust Temperature
Overvoltage
Features
Portable, compact, self-contained
Broad voltage capability
Fine load step resolution
Utilizes the UL Recognized “Powr-Web” load element
Branch circuit fuse protection of load elements
Toggle switch control of load steps
Complete test instrumentation and system fault protection
Fused control power circuits
Fan motor circuit breaker
Connection cables included
Fast set-up, quick turnaround
Field use capable
Capacity 155KW at 480V, 3-ph. 143KW at 240V, 3-ph. 107KW at 208V, 3-ph. 102KW at 240V, 1-ph. Voltage Operator selectable: High: 250-480V AC, 3-ph. Low: 12-240V AC, 1-ph. or 3-ph. Frequency 50, 60, 400 Hertz Load Step Resolution 1KW Fan/Control Power User selectable: External 120V AC, 1-ph., 60Hz, 20A 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 Temperature Rating 120°F max. intake 275°F max. exhaust Duty Cycle Continuous Weight 800 lbs. Dimensions 32” W x 48” H x 60” D Enclosure NEMA-1 drip proof Options KW meter Running time meter 1% accuracy digital panel meters Digital power meter Extended terminal power capability (to 480V, 3-ph., 60Hz) 400Hz instruments Remote control provision Companion Load Bank Vinyl cover Weatherproof enclosure Highway trailer Click here for a complete list of options available for Large Portable Load Banks. 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.
DYNAMITE 155 PORTABLE LOAD BANK CAPACITY DETAIL |
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DYNAMITE 155 PORTABLE LOAD BANK LOAD STEP DETAIL |
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