Stationary
Triton
150-400KW
Trident
450-1250KW
Triton and Trident Load Bank
The Triton and Trident
Load Banks are completely self-contained, freestanding units
which include 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 NEMA type enclosure. These
Load Banks utilize the same cabinet design.
Very-high capacity load testing of generators or electric dynamometer
testing of large engines and turbines is achieved with these
Simplex Load Banks. They may be used singly or in systems of
multiple units which yield total capacities of tens or hundreds
of megawatts.
The Triton and Trident are single or dual voltage
Load Banks suitable for all common 60 and 50 Hertz voltages up
to 600V. Loads are stepped in any increment of 50KW, or, optionally,
in fixed steps to 5KW or infinitely variable.
The load elements in the Triton and Trident Load
Banks are cooled by a horizontal forced air system which discharges
at a high velocity through the rear of the cabinet.
Cooling Fan and Motor
Trailer Mounted Trident Load Bank
Features
Master load toggle switch and
load step toggle switches
Utilizes the UL Recognized “Powr-Web” load element
Branch circuit fuse protection of load elements
Comprehensive overload, short circuit and malfunction protection
Plated bus bar
Control components separate and isolated from load elements
Continuous duty
Optional Remote Suitcase
Control Panel
Capacity Triton 150-400KW Trident 450-1250KW Voltage All common 50, 60Hz voltages up to 600V Frequency 50, 60 Hertz Load Steps 50 KW resolution standard 1-5-10-25KW resolution available Dimensions Triton 102"W x 47"D x 48.7"H Trident 126"W x 47"D x 48.7"H Duty Cycle Continuous Dimensions and Key Features Diagram: Triton and Trident Stationary Load Banks: Applications and General Specifications, Features and Options, and Engineer’s Specifications |
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.
