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Sliprings Type PRP

Sliprings Type PRP

Sliprings Type PRP

Product catalog summary
Main Performances
The housing is made of thermoplastic insulating material with a 42 mm diameter steel pipe for hoist cables, fluid cables, and piston stems. It is positioned vertically with a threaded pipe, and cable entry is through 1/2” Gas cable entry on both flanges. The device uses 20 A copper-graphite brushes, 30 A blade or copper-graphite, and 50 A blade or copper-graphite brushes. Executions range from 6 to 36 rings for 20 A, 4 to 12 rings for 30 A, and 4 to 12 rings for 50 A, with mixed executions available.
Standards and Marking
The product complies with CEI-EN 60947-1, CEI-EN 60529, and directives 2014/35/UE, 2014/30/UE, 2006/42/CE. It is CE marked.
Technical Specifications
Nominal voltage is 660 V ac/dc, with a nominal current of 20 A - 30 A. It has a protection degree of IP 51 and a maximum rotating speed of 30 revs/min. The test voltage is 2.5 kV, and it operates in temperatures from -20 °C to +60 °C. Mixed and signal versions with gold or silver rings are available on demand.
Installation and Wiring
Installation must be performed by qualified personnel. The central pipe is attached to a plate with specific dimensions, and rotation is facilitated by pivots on the cover. Cables are connected through pipe unions, ensuring no interference with moving parts. Proper grounding and equipotential checks are necessary.
Maintenance
Regular maintenance is required, starting within 300 hours of rotation or 12 months after installation, and then every 18 months. Maintenance includes checking brushes for wear, removing dust, checking cable tightness, and ensuring the cover seal is intact. Only original spare parts should be used, and any defective parts must be replaced promptly.
Dimensions
Detailed dimensions and configurations are provided for various types and numbers of rings, with specific height measurements for each configuration.
Contact Information
Ravioli S.p.A., Via Passo Pordoi, 4, 20139 Milan, Italy. Tel: +39 02 53.63.01, Fax: +39 02 53.63.05, Email: [email protected], Website: www.raviolispa.com
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Catalog excerpts

Sliprings Type PRP-1

Technical Sheet Main Performances Housing In thermoplastic insulating material Inside passage 42 mm diameter through steel pipe for the passage of hoist cables, fluid cables and piston stems In vertical axis with threaded pipe as illustrated here below Cable entry Through 1/2” Gas cable entry on the lower and upper flange. Inside terminal to connect the rings 20 A copper-graphite brushes, 30 A blade or copper-graphite and 50 A blade or copper-graphite From 6 to 36 rings 20 A from 4 to 12 rings 30 A and from 4 to 12 rings 50 A. Mixed executions with 4 rings 30 A and till 30 rings 20 A Armonized rules CEI-EN 60947-1 CEI-EN 60529 2014/35/UE – 2014/30/UE –2006/42/CE Directives Marking Electrical Features Nominal voltage Nominal current Protection degree Max rotating speed Test voltage Operating temperature Availability on demand: • Mixed versions with 20 A / 30 A / 50 A rings • Signal versions with gold or silver rings Add an “L” at the end of the code for blade brushes, only for 30 A and 50 A executions. Ravioli S.p.A. Via Passo Pordoi, 4 - 20139 Milan, Italy Tel. +39 02 53.63.01 - Fax +39 02 53.63.05 E-mail: raviolispa@ra

 Open the catalog to page 1
Sliprings Type PRP-2

The PRP slipring has to be installed only by qualified personnel in compliance with current safety standards. Power to the machine must be turned off before carrying out cabling. Connections are to be made in compliance with the wiring scheme of the controlled equipment. After installation has been completed, the installer is required to check that all commands are working properly. Avoid prolonged contact with oils and acids when using the equipment, as these may damage the products. 1) Using the locknuts (Ref. 2), attach the central pipe (Ref. 10) to a minimum 3 mm thick plate with a central...

 Open the catalog to page 2

All Ravioli spa catalogs and technical brochures

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  11. Jump - J Line

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  16. Stilo

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.