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Simplex Vulcan-5 MV Load Bank (5000kW)

  • Vulcan-5
  • Vulcan-5
  • Vulcan-5
  • Vulcan-5 Optional Power Distribution Switchgear for 20kW System
  • Vulcan-5 Optional Power Distribution Switchgear for 20kW System
Call with Options for Price Quote: 1-888-331-5344
70,000.00 LBS

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The Simplex Vulcan-5 Medium Voltage Trailer-Mounted Resistive Load Bank System is ideal for medum voltage applications up to 5000kW and up to 34.5KVAC. Each system includes a 5MW low voltage 480V load bank, 5MVA medium voltage to low voltage transformer, digital controller, and semi-trailer. Multiple units can be networked together and controlled by a single operator interface for even higher capacity requirements.


  • Load Capacity: Up to 5000kW, 1.0 pf.
  • Voltage Options: Up to 34.5kVAC.
  • Load Step Resolution: Typically 50kW minimum.
  • Duty Cycle: Rated for continuous operation.
  • Digital Controller: Local or remote PLC-based with 8-inch color TFT touchscreen with programmable softkeys (HMI).
  • Instrumentation: Digital power transducer to monitor volts-amps-hertz-KW.
  • Control Power: Internal from load bus. Control circuits at 120V via transformer.
  • Cooling Power: Internal from load bus. Cooling fan operates at 3-phase line voltage.
  • Cooling: Forced air, vertical airflow, top exhaust. 20HP or 30HP, 3-phase, TEFC motor driving cast aluminum fan blade. Circuit breaker combination fan motor starter with adjustable overload relay.
  • Load Elements: UL/CUL Recognized component. Open wire, helically wound, chromium alloy, thermally derated to 60%. 5% tolerance, 2% balance. 0.995 power factor. Element wire mechanically supported over entire length such that if a wire should break, the broken wire segments will not short to adjacent conductors or to ground.
  • Element Circuit Protection: Branch circuit fuses, each 50kW branch circuit maximum, 200kAIC, 600V, current limiting type.
  • System Protection: Fan failure, high exhaust temp, high intake temp, fan motor overload; lockout and alarm message display on HMI. Airflow pressure differential switch; dual exhaust temperature thermocouples; intake air temperature thermocouple; fan motor overload relay. Display of temperatures on HMI.
  • Load Connections: Bus bars for MV connections.
  • Enclosures: Three Type 3R enclosures - one for load bank section, one for transformer, and one for control section.
  • Transformer: Dry type, 5000 kVA; MV Delta:480/270V 60Hz; Includes MV 1200A 3-pole manually-operable fixed-mounted fusible disconnect; Fused low voltage outputs.
  • Network Capable: Capable of parallel operation to form very large systems of up to virtually unlimited capacity.
  • Trailer: Highway 48ft "low-boy" tri-axle semi-trailer.

OPTIONAL Power Distribution Switchgear

  • Outdoor, freestanding metal-enclosed 20MW power distribution switchgear consisting of multiple cubicles.
  • Connects four Vulcan-5 load bank systems to generator switchgear.
  • 15kV vacuum circuit breaker for each load bank trailer.
  • Transformer Protection Relay for each breaker.
  • Instrumentation potential and current transformers.
  • Low voltage motor starter and control power cubicle.
  • Network PLC control.
  • Touchscreen operator interface.


Vulcan-5 Brochure

Vucan-5 Load Bank Only Illustrative Drawing

Vulcan-5 Trailer-Mounted System Illustrative Drawing


  • 480V Direct Load Power Input.
  • Second Medium Voltage Input.
  • Resistive/Reactive Package.
  • Additional Remote Controller.
  • Automation Software.
  • Windows PC Control Software.
  • Medium Voltage Connection Cables.
  • Low Voltage Connection Cables.
Max Capacity:
5000 kW 1.0 pf
To 34.5 KV, 3-phase
Load Steps:
50KW resolution
Control/Cooling Power:
Internal from load bus via MV:480V transformer for fan power. 480:120 transformer for control circuits.
Forced air, vertical airflow, top exhaust
Dimensions LxWxH (inches):
576" x 102" x 160"
Approximately 70,000 lbs.
Limited Warranty:
12 Months

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