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The Electric Power System. | |||
| In the new EPS, the truck-mounted pump is driven in the conventional way directly via a power take off. A second power take off is used to drive a new kind of high-power generator, which supplies electrical energy independently of the rotational speed to a 600 V DC on-board supply system in the detachable unit. From this DC supply, the individual loads are supplied with traditional 400 V AC through inverters. The generator starts automatically when the pump is started. Independent operation is also possible. With up to 140 kVA, it delivers sufficient energy to supply all the required electrical equipment in the truck. For the first time, electrically driven devices can be flexibly supplied with current in the vehicle and simultaneously pressure proportioning systems with high output and compressed air foam systems can be operated and independently controlled through the EPS. Electrical energy with high output is also available for the flexible release of extinguishing agents from the vehicle. Any misgivings about the safety of the system can be simply discarded. The system conforms to the current DIN 14686. All current carrying cables are well-insulated; the entire system is monitored through a two-level insulation monitor. The network configuration is through an especially secure insulated grid (IT grid). The system provides fire departments with a versatile power supply, as well as an almost maintenance-free drive system for electrically operated modules. The new hybrid energy system is integrated in the Rosenbauer LCS (Logic Control System) and can thus be operated from a monitor. | |||
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