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Very-high capacity load testing of generators or electric dynamometer testing of large engines and turbines is achieved with the Simplex Trident Load Bank. The unit capacity range of the Trident is 150KW-1250KW, resistive, unity power factor. The Trident may be used singly or in systems of multiple units which yield total capacities of tens or hundreds of megawatts. Pictured is a 2000KW system (two Tridents) with customer specified paint. Reactive units (inductive or capacitive) are also available.
The Trident is a single or dual voltage Load Bank suitable for all common 50-60-400 hertz voltages up to 600V.
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General
Load Elements
| • | Elements mounted in easily accessible, slide out trays. |
| • | Simplex Powr-Web chromium alloy, open wire, continuously supported, power resistor. |
| • | UL Recognized. |
System Controls
| • | Standard: Simplex D-Series Digital Controller with local or remote touchscreen. |
Cooling
Malfunction Protections
| • | Sensors, alarms (alarm messages and exhaust temperature displays on touchscreen), 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 Control
| • | Branch circuit contactors each step or each 50KW circuit maximum. |
| • | Contactors with enclosed silver surfaced contacts, 120V coils; electrically operated and electrically held. |
Connections
| • | Control Wiring: 105°C, color coded. |
| • | Power Wiring: 150°C XLP color-coded. |
| • | Cables connect to full rated copper bus bar with an oversized terminal junction box. |
| • | Cables connectable through top or bottom of chassis. |
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. |
| • | Service access from three sides via hinged doors with lockable latches. |
| • | Finish painted with a UL Listed process consisting of either a powder-coated finish or a liquid-coated finish consisting of an epoxy primer and a polyurethane finish. |
| Capacity |
150KW-1250KW |
| Load Type |
Resistive |
| Power Factor |
1.0 |
| Voltages |
All common 3-phase
60 and 50 Hz voltages:
60 Hertz: 208V, 220V, 240V, 416V, 440V, 450V, 460V, 480V, 575V, 600V
50 Hertz: 190V, 200V, 208V, 380V, 400V, 416V |
| Frequency |
50-60-400 Hz |
| Load Steps |
50KW resolution |
| Duty Cycle |
Continuous |
| Temperature |
120°F maximum ambient temperature.
Exhaust rise: RISE=KW x 3000 / CFM (Note: as airflow is not laminar, exhaust air temperatures are not equal at all points at the plane of air exhaust. Some parcels of air may reach approximately 575°F before mixing. |
| Fault Rating |
Fuses are rated 200KAIC. The load bank has a 5KAIC short circuit current rating. |
| Load Wire Insulation Rating |
600V, 150°C |
| Control Wire Insulation Rating |
600V, 105°C |
| Airflow |
20,000 CFM, 7.5 HP |
| Fan/Control Power |
Internal, from load bus.
Load control circuits and fan motor control operate 120V via transformer. Control circuits are fused.
The cooling fan operaters at 3-phase line voltage. |
| Dimensions |
126"W x 48.7"H x 47"D |
| Weight |
3,000 lbs |
Note: Dimensions and weights are subject to change with capacities and options selected.
System Controls
Fan/Control Power
Instrumentation
Malfunction Protections
| • | Main load disconnect breaker or fused disconnect switch. |
Load Control
| • | Branch circuit contactors each step or each 50 kw circuit maximum. |
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Contactors with enclosed silver surfaced contacts, 120V coils; electrically operated and electrically held. |
Highway Trailer
| • | Trailer construction conforms to applicable Federal and DOT standards. Includes: safety chains, electric lights, electric brakes, leaf springs, pintle eye coupler, and landing jack. |
Note: We are experts at building products that meet our customer's exact requirements. Contact Simplex if your job specifications require additional options or considerations.
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