800kv Corona Shield Rings Surge Arrester,HV Corona Ring
Transmission Line and High Voltage Test Equipments
|Standard||DIN,ISO, Non-Standard or according to customers’requirement|
|Applications||Power Hardware, Cable Hardware,High Voltage Test etc|
|Packing details||International standard package such as carton wooden or according
to your requirements|
|Delivery time||According to the quantity of products but will as soon as possible|
L/C, T/T, Western Union
30% TT before the produce, 70% before the shipment
|Place of Origin||Jiangsu,China|
Corona Rings are used on the end fittings (line end or tower end) of post
insulators and suspension insulators. High voltages can result in
unwanted noise (RIV) and corona, so Corona Rings are needed.
Corona Rings function:
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 230 kV and above, a corona ring or
combination of rings is necessary. However, some application may
require rings are lower system voltages when addition corona
protection is required high contamination, high altitude, or
applications with tight phase spacing. Refer to the Corona Ring
section of the Application Guide for detailed information or
contact the factory for these special cases or any corona ring
Recommended Corona Ring Application for line post insulators:
Used on the line end or tower end (end fitting)
Voltage: 138kv, 161kv, 230kv, 345kv, 500kv
The Smart Fit corona rings are 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.
Three Ring Diameters are available for use on all suspension
insulator styles: 8” Corona Ring, 12” Corona Ring, and 17” Corona
For insulators 230 kV and above, High-V Electrix recommends use of
Line Post Corona Rings. The Application depicts typical corona ring
usage on suspension Insulators. For corona ring usage on special
applications, environments, and elevations, please contact us.
Corona Ring Material
Aluminum, steel and copper are main material for Corona Ring and
The corona ring packing can be done by wooden case and cartons.
1). Wooden Packing:
Wooden packing suitable for heavy weight corona rings. For export,
Fumigation Certificate will be necessary when case is made of solid
1.No bark allowed on wooden package.
2.Ship fumigated wooden package as soon as possible, ensure
separate storage and segregation with non-fumigated wooden
3.Validity of the certificate of fumigation is 21 days.
Inquire local ship agency whether fumigation is necessary every
time after learning the lot package material, booking with a
certain answer. Method of wood case fumigation include chemical
preparation method and heat treatment.
2). Carton Packing:
Carton Packing always light weight and convenient for moving by
hands. Its suitable for light weight rings.