Composite Insulators Corona rings/Grading rings Plant Presentation

Aluminum 319 Die Casting Corona Rings Chinese Manufacturer, aluminum alloy rings applicated in 10-1000KV composite insulators.Outdoor High-voltage Composite Insulator Corona Rings,
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Aluminum alloy grading rings/Corona ring: For AC/DC polymer composite insulators, it can be high voltage evenly distributed around the object to ensure the potential of every position around the ring consistent. The purpose of the ring is very extensive, it can be divided into; Arresters corona ring, lightning protection; Corona ring, insulator corona ring, transformer corona ring, corona ring of high voltage test equipment, power transmission line corona ring. Meanwhile, in a lot of supporting precision measurement of electrical equipment, often used shielding corona ring, or shield ring.

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Corona Ring High voltages can result in unwanted noise (RIV) and corona. To minimize the effects of corona, corona ring is applied to one or both ends of the transmission suspension insulator (attached onto the end fittings).

Corona Ring details: High voltages can result in unwanted noise (RIV) and corona. To minimize the effects of corona, corona rings are applied to one or both ends of the insulator (attached onto the end fittings). Typically, for system voltages 230kV and above a corona ring or combination of rings is necessary. However, some applications may require rings at lower system voltages when addition corona protection is required; high contamination, high altitude, or applications with tight phase spacing. For these special cases or any corona ring application assistance, contact Orient.

corona ring is designed around the needs of the end user. It is easy to install, unidirectional (not able to install in the wrong direction), and can be installed or removed with hot stick tools. By making the ring a one-piece design, we have eliminated the problem of missing or lost parts. This was made possible by designing a unique clamping mechanism that uses two bolted keepers to secure the ring to the insulator. Additionally, the clamping section was designed such that the ring can only be installed in one direction, which eliminates the problem of misapplied rings. As a final step, the ring was designed with a split (opening) to allow installation with hot stick tools.

Recommended Corona Ring Application: Voltage: 138 kV, 161 kV, 230 kV, 345 kV, 400 kV, 500 kV Line end: None, None, 8”, 12”, 12”, 17” Tower end: None, None, None, None, 8”, 8” Three Ring Diameters are also available for use on all suspension insulator styles: 8”, 12”, and 17” corona ring

For insulators 230 kV and above, be recommend use of Corona Rings. The application table above depicts typical corona ring usage on Orient suspension Insulators. For corona ring usage on special applications, environments, and elevations, please contact Artisan Industry.

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