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Sliprings Type PRS

Sliprings Type PRS

Sliprings Type PRS

Product catalog summary
Main Performances
  • Housing: Aluminium
  • Positioning: Vertical axis
  • Cable Entry: Through PG 21 to connect rings to the clamp and brush-holders
  • Brushes: 20 A copper-graphite or silver-graphite for signals, 30 A and 50 A blade or copper-graphite
  • Executions: 6 to 15 rings for 20 A, 4 to 14 rings for 30 A, 4 to 10 rings for 50 A
  • Standards: EN 60947-5-1, EN 60529, 2006/95/CE, 2004/108/CE, 2006/42/CE
  • Marking: CE
Electrical Features
  • Nominal Voltage: 660 V AC/DC
  • Nominal Current: 20 A, 30 A, 50 A
  • Protection Degree: IP 55
  • Max Rotating Speed: 30 revs/min
  • Test Voltage: 2.5 kV
  • Operating Temperature: -20°C to +60°C
  • Availability: Mixed versions with 20 A/30 A/50 A rings, signal versions with gold or silver rings
Installation and Wiring

The PRS slipring must be installed by qualified personnel following safety standards. Ensure power is off before cabling. Connections should follow the equipment's wiring scheme. After installation, verify all commands function correctly. Avoid prolonged exposure to oils and acids.

  1. Attach the central pipe to a plate using locknuts, ensuring a central hole of Ø 48.5-52.5 mm.
  2. Rotation is facilitated by Ø 10 mm pivots on the base, spaced 160 mm apart.
  3. Connect cables to brushes through PG21, ensuring no interference with moving parts.
  4. Check equipotential surfaces and ground connections.
Maintenance

Regular maintenance by qualified personnel using original parts is required. Replace defective parts promptly to ensure safety.

  1. Disconnect power and allow internal parts to cool.
  2. Remove the cover and check brushes for wear.
  3. Clean copper-graphite dust with compressed air or a brush.
  4. Check cable tightness and cover seal condition.
  5. Replace the cover after maintenance.

Note: Warranty does not cover modified equipment. RAVIOLI is not responsible for damages from incorrect installation or use.

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Catalog excerpts

Sliprings Type PRS-1

Housing Positioning Cable entry Brushes Executions Armonized rules Marking Technical Sheet Sliprings Type PRSMain Performances In aluminium Vertical axis To connect rings to the clamp, through the tube and to the brush-holders cable entry through the PG 21 20 A copper-graphite brushes / silver-graphite for signals, 30 A blade or copper-graphite and 50 A blade or copper-graphite From 6 to 15 rings 20 A, from 4 to 14 rings 30 A and from 4 to 10 rings 50 A EN 60947 - 5 - 1 EN 60529 2006/95/CE - 2004/108/CE - 2006/42/CE CE Electrical Features Nominal voltage Nominal current Protection degree Max rotating speed Test voltage Operating temperature 660 V ac-dc Ith 20 A - 30 A - 50 A IP 55 30 revs / min 2,5 kV - 20 °C -f + 60 °C Availability on demand: • Mixed versions with 20 A / 30 A / 50 A rings • Signal versions with gold or silver rings Type N° Rings Type N°Rings H=mm* For 30 A and 50 A executions, please omit the final “L” of the code if you need copper-graphite brushes Ravioli S.p.A. Via Passo Pordoi, 4 - 20139 Milano Tel. +39 02 53.63.01 - Fax +39 02 53.63.05 E-mail: [email protected] - www.raviolispa.com

 Open the catalog to page 1
Sliprings Type PRS-2

The PRS 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. 11), attach the central pipe (Ref. 3) to a minimum 3 mm thick plate with a central...

 Open the catalog to page 2

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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.