Medium Voltage Load Bank Description The Mars-HV is a self-contained load bank to 15KV utilizing the Simplex Saturn Load Module with onboard dry-type power transformer. It is a freestanding, skidded unit consisting of three principle sections: 1. High voltage section consisting of main input power terminals, high voltage: 480V 3-phase power transformer, low voltage output terminals, and outputs to load cell 2. 480V, low voltage resistive load section consisting of one 700-1200KW forcedair cooled load cell 3. Control Section All control circuits and control power supplies are powered internally. The Mars-HV requires connection of a 3-phase feeder only. Load circuits and cooling fan operate at 480V; control circuits operate at 120V. Input disconnects, fuses, lightning arrestors and potheads available as options. Features • Self-contained load and control system • Utilizes the proven Simplex “PowrWeb” load element (see page 2) • Branch circuit fuse protection of load elements • Digital load control (see page 4) • Color coded and numbered wiring; power wiring 150°C • Plated bus bar Benets • Modular enclosure design with separate and isolated control and power sections • Type 3R weatherproof power section, including load elements and cooling fan. • Type 3R weatherproof control section with generous cable connection space, thermally and electrically isolated from resistive load power section. • Vertical airow, exhausts hot air above level of personnel and away from buildings, pavement etc. • Slide-out, tray mounted load elements • Comprehensive overload, short circuit and malfunction protection • Highly standardized, based upon extensive product line spanning from 5KW to 3MW • Supported by comprehensive engineering and product support, including detail manuals, 24 hour eld service, availability of start-up services. • Comprehensive malfunction detection system

Medium Voltage Load Bank • Page 2 Powr-Web Resistive Load Element Description Simplex Load Banks utilize “PowrWeb” load elements. The “Powr-Web” is an advanced design, air-cooled power resistor specically 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-circuitsafe design based on continuous mechanical support of the element 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...

Principle Systems and Components The load bank is a completely selfcontained, freestanding unit which includes 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. Medium Voltage Load Bank • Page 3 Element Circuit Protection Branch circuit fuses, each 50KW branch circuit, 70A, 200kAIC, current limiting type. Modular enclosure consists of three parts: Power Wiring 600V, 150°C insulation rating. Control Wiring 600V,...

Medium Voltage Load Bank • Page 4 D-Series, Digital Load Controller With D-Series controllers, the user enjoys a signicant savings of installation cost. Versus traditional analog (toggle switch) panels, connections for remote control are reduced to a single RS-485 or Ethernet Cat-5 cable. Multiple control stations are easily networked. Valuable space is conserved. Reliability is enhanced. With D-Series controllers, data monitoring and acquisition, load bank automation and BMS integration are made simple. The D-Series is networked via MODBUS RTU over RS-485 or Ethernet allowing simple daisy chain...