Lhotser Group Limited products

Lhotser`s Corona Rings can be used for power transformers, high voltage insulator, high voltage bushing, arrestor, reactors, HV DC system, high voltage test lab... and so on. The corona ring surface are smooth, with excellent performance on controlling the HV corona.

Corona is popular at high voltage, medium voltage or ultra high voltage. At these extreme high voltages the physical geometry of the surfaces at high voltage becomes a critical consideration with respects to suppressing the generation of corona. Corona is a luminous, audible discharge that occurs when there is an excessive localized Electrical Field gradient upon an object that causes the ionization and possible electrical breakdown of the air adjacent to this point. Effective corona suppression is a crucial factor to take into account when designing high voltage power supplies. This will do great help to improve the corona situation and make sure the smooth power transmission & distribution.

Carton Packing always light weight and convenient for moving by hands. Its suitable for light weight rings.

Aluminum, steel and copper are main material for Corona Ring and shielding components. Material: Aluminum :Tolerances: ISO 2768-mk and ISO 13920-BF Finish Surface: Ra 3,2

Compared to electric porcelain insulator, composite insulator is featured with high intensity, light weight, high wet-flashover and flashover voltage, easy operation maintenance, strong ability of impulse withstand, widely applied to transmission line suspension string, and has spread application in tension string in recent years. 

Aluminum alloy grading ring  The ring body size:  R15/ $250.

Grading ring opening: The ring body size:  R15/ O260.

Bird hazard prevension die-casting shield: The ring body size: O250.

Equalizing Ring Tube: The ring body type: 180x 14.