ELECTRICAL INDUSTRY

colorbox_move

ELECTRICAL INDUSTRY

DELU has set new standards in the Indoor transport of heavy transformers.

Large power transformers can weigh as much as 700 tons or more. To move these leviathans within a factory, huge, bulky crane or rail systems are required. These challenges make the advantages of an air cushion system particularly apparent.

DELU supplies low-cost pallet transport systems that allow transformers weighing up to 1,000 tons to be positioned to millimetre precision and safely manoeuvred through narrow passageways by a single operator.

Such a system can comprise several (small) transports that are combined and arranged in different ways (parallel, inline) according to the size and distribution of the load. This enables the whole product spectrum of 10 to 1,000 tons to be covered easily and economically.

Complete transformers or components are placed on steel pallets, which means they can be picked up by the air cushion transporter at any time and conveyed to the next assembly station, the testing lab or the VPD. The hall crane is only required for the loading and unloading of the pallets. It is usually possible to dispense with inflexible rail systems entirely.

 

Other benefits:

  1. High flexibility and simple adaptation to new products and production processes
  2. Load range can be easily expanded by DUO mode or expansion modules
  3. Investment costs are reduced, productivity boosted and lead times shortened
  4. Compact design and optimal space utilisation saves valuable space
  5. Transport pallets can be used universally (transformers, active parts, tanks, coils)
  6. Transformers transported quickly and safely
  7. Transport system is easy for one operator to operate, even in DUO mode
  8. Floating load allows precise positioning
  9. Wide load distribution helps protect the floor
  10. VPD bridges suitable for air cushions
  11. Forked-shaped transporters for loading the press
 
Transformer transport during final assembly
Huge power transformers can be relocated and positioned to millimetre precision within a matter of minutes without the use of a crane
Transporting an HVDC power transmission transformer in the production hall on two pallet transporters in DUO-Inline mode.
Here, active components of a transformer are deposited on transport pallets.
Air cushion technology allows transformers weighing hundreds of tons to be manoeuvred precisely in extremely confined spaces. Here a transformer is being brought into the test hall from outside the production area.
Depending on the weight and size of the load, it can be picked up and moved by one (Single), two (Duo) or three (Trio) vehicles.
Transport by air cushion equipment is not only fast and safe, it also allows maximum flexibility for the hall layout and when positioning the transformers.
A hall crane is only needed for loading and unloading the air cushion transport pallets. If hydraulic jacks are used instead, it is even possible to dispense with an expensive crane system entirely.
Many customers also value DELU air cushion transporters because of their compact dimensions.
VPD loading for active part drying during pre-assembly
Fast, simple loading with optimum utilisation of the space in the 150° hot VPD
Standing on pallets, the active parts can be moved directly into the vapour phase drying system by air cushion transporter.
DELU has developed a patented bridge system and specially coated air cushions for moving the heavy cores into the drying plant at high operating pressures.
Core production
Electric sheets and coil cores transported without crane or forklift truck
This air cushion transporter can pick up pallets with transformer plates weighing up to 10 t. It is possible to go underneath the pallets from all sides.
Transporting transformer plates weighing up to 60 t. The frames are designed as pallets that can be picked up directly by the transporter.
The coil cores are taken to the winding station by air cushion transporter.
Winding shop
Coils transferred from the winding unit to the press
Mobile winding device.
The remote controlled coil transporter has four flat forks with which it picks up the frames with the 18 t coils directly.
The transporter allows the coils to be taken directly into the press.
The narrow coil bodies can be transported safely despite the high centre of gravity and the small load surface.
Manually operated pallet transporter for transformer coils.
Transporting coils on a standard pallet transporter.
Pre-assembly
The active parts must go from the core laying table to the VPD and from there to the intanking station
Transporting an active part for cast-resin dry-type transformers.
The active part is preassembled on an air cushion transport pallet.
Transporting an active part for output transformers.
Final assembly
Mobile work and lifting platforms allow flexible assembly
Mobile assembly elevating platform with air cushion running gears and individually extractable platform inserts.
The height-adjustable work platforms allow personnel and material to be brought to the top of the transformer.
The mobile elevating platforms can be pushed to the transformer quickly and easily by hand.
Test floor
Variable positions for test equipment and transformers enable optimum utilisation of the test laboratory
This HVDC power transmission transformer is one the biggest of its kind in the world. It is transported on a DELU air cushion transport system.
The highly flexible air cushion technology allows transformers to be positioned anywhere in the high-voltage lab. This ensures optimum utilisation of space and hence faster throughput times.
Smaller transformers are moved by a transport vehicle. A composite system consisting of up to 3 transporters is used to transport large and heavy transformers.
The transport pallets are customised to the load surface of the transformers. In this case they have rails.
When filled with oil, the fully assembled transformers are extremely heavy when transported into the high-voltage lab for testing. In this area transporter systems with load-bearing capacities of up to 1,000 t are used.
The test equipment, such as this pulse voltage generator, can be repositioned with air cushions at any time.
Other applications
Air cushion technology opens up a wide range of different applications
Transformers stored outside.
Air cushion-mounted frame for a heavy crane traverse.
Transporting transformer boilers in the storage area.
Transport of high-voltage switches and circuit breakers
By pallet transport system
Transporting high-voltage circuit breakers.
Air cushion transporters allow high voltage switches to be moved in the production hall and taken to the test floor.
Transport of switchgear
By special fork-shaped devices or platforms
Transport platform for switchgear with external drive.
Transporting a switchgear by means of LTH air cushion support planks.
Air cushion pallet transporters with flat forks for picking up switchgear.