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New mobile power station system offers independent electricity and compressed air supply to construction sites

Ngày 09 tháng 5 năm 2019

Premel SA, based in Bellinzona, Switzerland, has developed a new mobile power station system capable of providing construction sites with an independent supply of electrical power and compressed air. The systems are completely enclosed in six metre ISO containers and come equipped with a generator and a compressor from Atlas Copco.

The mobile power stations are equipped with a robust QAS 60 generator and a XAHS 237 mobile compressor from Atlas Copco.

The mobile power stations are equipped with a robust QAS 60 generator and a XAHS 237 mobile compressor from Atlas Copco.

Typical applications for the mobile power stations include tunnel construction sites and anywhere where a source of electricity or compressed air network is unavailable. This also includes refineries, and for this specific application the system can be equipped with a spark arrestor.

Each container, which has external dimensions of 6.09 m (length) x 2.35 m (width) x 2.40 m (height), weighs around nine tonnes. This means they can fit on the trailer of a truck, making them easy and economical to transport to a construction site. To make loading and unloading easier, the container has integrated forklift receivers in the base frame.

The mobile power stations are equipped with a robust QAS 60 generator and a XAHS 237 mobile compressor from Atlas Copco. The generator provides a permanent output of 60 kilovolt-ampere (kVA). It works with a Perkins motor in the EU emissions category IIIA applicable for mobile work machines. The compressor is powered by a MTU motor in emissions category 4. Both Atlas Copco units are equipped with an active and a passive particle filter system.

According to the supplier, the generator can be overloaded by 300% for up to 20 seconds with no problems. This is a major advantage when starting up water pumps. The control units and the 400 V CEE connector (1 x 63 A, 2 x 32 A, 2 x 16 A and 4 x 220 V) can be accessed on the outside of the container. Additional equipment requests can also be implemented, like container remote monitoring via the internet.

The mobile power stations are completely enclosed in six metre ISO containers.

The mobile power stations are completely enclosed in six metre ISO containers.

The compressor provides up to 14 standard cubic metres of compressed air a minute (14 m3/min) at 12 bar. It offers complete reliability, simple operation, low operating costs and a long service life. This makes the unit perfect for use in self-sufficient power supply stations. The special screw element of the compressor, produced in-house by Atlas Copco, guarantees a practically constant volume flow and enables high productivity and economic operation. To put as little strain as possible on the environment, it is powered by a high-performance diesel motor that meets emissions category IV. An electronic operations management system controls and monitors all key functions and operating states of the compressor.

The filling openings for diesel and additives are mounted on the outside of the container for quick fuelling of the units. Both the generator and the compressor can be operated autonomously at 75 per cent load for around ten hours. An optional signal light can be installed on the container to warn of low fuel levels in good time.

The two large sliding doors on the side of the container are lockable and provide easy access to the units for servicing. If further maintenance support is required, operators can access the combined service network of Atlas Copco and Premel SA.

Premel builds the container systems, including the generator, compressor, exhaust and fuel system, at its Bellinzona manufacturing facility and tests them on-site. The company is certified in accordance with ISO 9001. According to Premel, all integrated and mounted components have the CE mark.

Mobile Diesel Generators - Rental Applications QAS Câu chuyện ứng dụng Switzerland 2017