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RIP/RIS CONDENSERBUSHINGS

Insulation : Resin Impregnated Paper / Synthetic

Application : Transformer - Outdoor

Type : Oil to Air

Insulator : Hollow Composite / Silicon

Rated Voltage : 24 kV ~ 245 kV

Rated Current : 400 A to 6300 A

Standard : IEC 60137:2017

Known for their revolutionary performance, DRY TYPE Resin Impregnated Paper (RIP) /Resin Impregnated Synthetic (RIS) Condenser Bushings are oil-free transformer bushings, wherein the insulation is built directly on the conductor, and consists of high-quality crepe paper wound on the conductor in case of RIP bushings, or special grade synthetic film in case of RIS bushings. Conductive grading layers are embedded during the paper/synthetic wrapping process to form a capacitive core for the best electromagnetic field control, and further, the wound core is impregnated after a process of heat and vacuum application with special grade electrical application resins to make a completely dry RIP/RIS active part solution.

The RIP/RIS active is then assembled with hollow silicone insulators or direct moulded silicone on the active part, with the addition of mounting flange and other metal parts through specific and careful assembly processes.

  • Rated Voltage: 24 kV- 245 kV
  • Rated Current: 400 A to 6300 A*
  • Insulation: Resin Impregnated paper (RIP) / Resin Impregnated Synthetic (RIS)
  • Application: Transformer Outdoor
  • Type: Oil to Air
  • Insulator: Hollow Composite - Silicone
  • Standard: IEC 60137: 2017
  • Connection: Draw lead/Draw Rod/Solid Conductor

*Customized Rated Current >3150A are available upon request

  • Oil-Free / Partial Discharge Free
  • Non-flammable, self-extinguishing when exposed to open fire
  • Excellent Seismic / Earthquake performance
  • High thermal strength (120 C)
  • Mechanically rigid, yet lightweight and compact, 50% of the weight of OIP
  • Can be transported, stored and installed at any angle
  • Can be energized immediately after installation
  • Seals the transformer and reduces downtime in the event of major failures
  • Shatter-proof, Hydrophobic silicone sheds

100 Years of Swiss Innovation

  • A better connection maker, MOSER GLASER company (MGC) researched a way to increase the dielectric characteristics of the high voltage equipments. As a result, MGC invented in 1958, the Resin Impregnated Paper Technology (RIP), and have since supplied thousands of RIP bushings upto 300 kV voltage class globally
  • YASH HIGHVOLTAGE LTD. localised the manufacturing of RIP bushings under technology transfer from MOSER GLASER in 2016 and has executed more than 1500 RIP bushings from India for many discerning end-users and OEMs
  • For RIP/RIS bushings, the condenser core is built with resin-impregnated paper (RIP) or resin impregnated synthetic (RIS) insulation respectively. The insulation is built directly on the conductor (rod or tube based on the current requirement) and consists of high-quality crepe paper wound on the conductor in case of RIP bushings, or special grade synthetic fabric in case of RIS bushings. Conductive grading layers are embedded during the paper/synthetic wrapping to form a capacitive core for the best electromagnetic field control. This guarantees the highest operational and human safety
  • The wound core is then dried under vacuum and is impregnated with special grade resin. Thus the temperature class of RIP/RIS bushings is class B (i.e. permissible temperatures of max. 120 deg C). After the condenser core is completely impregnated with resin and completely cured, the core is machined to suit the design requirements
  • The test tap lead and test tap terminal are moulded with a special grade resin system between the mounting flange and condenser core. The special resin forms a high strength bond between the flange and RIP/RIS condenser core. The mounting flange is made of high strength aluminium alloy. The mounting flange and condenser core joint is leak tested using a very fine helium leak detector
  • A hollow composite (Silicone) insulator is then assembled on the air end side with a metal cap on top, along with special sealing rings, and the bushing assembly is fixed firmly. The annular space between RIP/RIS condenser core and Hollow core insulator is evacuated and completely filled with special grade insulation foam which dries after curing, and this forms a completely dry composite RIP/RIS bushing solution.
  • The bushings are then completely routine tested in accordance with IEC 60137:2017

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