The Simplex Mars-HV Medium Voltage Outdoor Resistive Load Bank is ideal for medium voltage applications up to 1200kW and 15kVAC. 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: Low Voltage Resistive Load Bank Section consisting of one 480V 700KW-1250KW forced air-cooled load cell.
- #3: Control Section.
FEATURES
- Load Capacity Options: Up to 700, 800, 900, 1000, or 1200kW.
- Voltage Options: Up to 15kVAC. Typically 2400, 3300, 4160, 13200, or 13800 VAC.
- Load Step Resolution: Typically 50kW minimum.
- Duty Cycle: Rated for continuous operation.
- Controller: The Simplex D-Series Digital Controller is PLC-based, network capable, and comes with a local or remote color TFT touch-screen operator interface.
- 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: Integral forced air cooling system; 3-phase, direct drive motor; Rain shedding exhaust hood; Forced air, vertical airflow — cold air intake at bottom, hot air exhaust at top.
- Load Elements: Elements mounted in easily accessible, slide out trays; Simplex Powr-Web chromium alloy, open wire, continuously supported, power resistor; UL recognized.
- Malfunction Protection: Sensors, alarms (alarm messages and exhaust temperature displays on touch-screen), lock-outs as appropriate, for the following: fan failure, high exhaust temperature and high intake temperature.
- Load Circuit Protection: branch circuit fuses. One set of fuses each 50KW branch. Fuses are current limiting type, 200,000 AIC, 600V, enabling safe use on large generating or UPS system.
- Load Connections: Connect to full rated copper bus bar with an oversized terminal junction box.
- Enclosure: Type 3R weatherproof power section, including load elements and cooling fan; Type 3R weatherproof control section, thermally and electrically isolated from resistive load power section; Double wall construction for cool exterior; UL tested and listed exhaust hood; Service access from three sides via hinged doors with lockable latches; Enclosure abrasively blasted or chemically etched, primed and finished. Anti-condensation heaters at 120V 1ø, 240V 1ø, or any common 3ø voltage.
- Transformer: Dry type; 700-1200KVA continuous duty; High voltage delta, 3-wire primary; 480V wy, 4-wire secondary with grounded neutral; 220°C insultation / 150°C rise.
- National Fire Protection Association (NFPA): Satisfies the requirements for emergency stand-by power systems.
PRODUCT DOWNLOADS
Simplex One-Year Parts Only Warranty
OPTIONS
- Automation with Auto-Load Regulation and Regenerative Power Protection.
- Additional Remote Controls.
- External Fan/Control Power.
- Multi-function metering package.
- Data Logging.
- Main load disconnect breaker or fused disconnect switch.
- Primary and/or secondary fused disconnect switch.
- Lightning arrestors.
- Highway Trailer: Construction conforms to applicable Federal and DOT standards. Includes: safety chains, electric lights, electric brakes, leaf springs, pintle eye coupler, and landing jack.
- Start-up and Training.
- 2-Year Field Service Warranty (Statement, Requires Start-up option, Continental U.S. only).
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