Description

The load bank enclosure is NEMA-3R rated for outdoor operation and is constructed from heavy-gauge steel with a durable polyester powder coat finish. Hinged access doors with lockable latches provide secure access, while cooling air is drawn in from the front and exhausted through the rear. Hinged solid intake and exhaust doors protect the unit from road debris during transportation. Incoming power connections are made directly to industry-standard quick-connect Cam-Lok receptacles, eliminating the need for tools.

The load bank is available as a trailer-ready unit for installation on a customer-supplied trailer or as a complete package with a highway-duty rated trailer featuring heavy-duty welded steel construction, dual axles, and radial tires. Load cable storage reels, with lockable cabinets to prevent cable theft, are available as an option, with each reel capable of storing up to 600 feet of 4/0 load cable. Optional load cable sets are also available.

ULB’s proprietary resistor load elements provide the required power loading for each individual load step. The resistors are constructed from precision nickel-chromium resistance alloy and are fully supported within the airflow by stainless steel rods insulated with high-temperature refractory ceramics. Heavy-duty, PLC-controlled magnetic contactors provide load application for each load step.

The load bank resistor elements are forced-air cooled with a heavy-duty, three-phase, TEFC electric blower motor with a high-performance direct-drive fan blade. The blower motor can be powered from the main input load bus (test source) or optionally from an external three-phase supply source. Motor starter circuit is fuse protected and includes an overload relay

STANDARD DIGITAL LOAD CONTROLS

The load bank is digitally controlled via an on-board PLC with touchscreen display and includes standard data monitoring (Voltage, Current, KW, and Frequency) with data acquisition and data logging. The digital controller includes a wide range of safety circuits including cooling-air loss, over-temp, over-voltage/under-voltage, and load dump. All load is automatically removed and locked-out in the event of a safety circuit trip. A hard-wired Emergency Stop (E-Stop) switch is also included. The Model ULB-2000 load bank is the new industry standard for modular trailer mounted load banks and is backed by years of expertise in load banks. Since 1969, ULB Management and technical team have been manufacturing test equipment for the aerospace, airline, aircraft MRO, military, industrial, agricultural, and automotive industries. Established in 2016 as the load bank division of a leading test equipment company, ULB offers a complete line of load banks for the commercial market.

OPTIONAL EQUIPMENT:

Highway duty rated trailer featuring heavy-duty welded steel construction with dual axles and radial tires. Trailer includes electric brakes with lights, adjustable lunette eye or ball hitch, and stabilizer jacks. Motorized cables reels with lockable storage cabinets mounted to trailer. Each reel can store up to 600 feet of 4/0 load cable, 1200 feet total.