Goods are packed in wooden cases, with foam inside for protection. And we have a team who is in charge of packing. The team consists of our skilful carpenters and experienced packing designers. These enable our packing reasonable, safe and reliable.
Guangzhou Huangpu Port
Oil Immersed Current Transformers
The current transformers which the insulation material is oil.
The current transformers are vertical structure inverted structure, assemblied by a metal expander, high voltage porcelain bushing, pressure relief valve, oil tank and oil-letting valve. The primary windings whose main insulation is made up of crepe paper and capacitor screens. The secondary windings are through the primary windings and are fixed inside the oil tank together.
The secondary terminals block is casted by epoxy resin, the frame of the secondary terminals box is a seal structure, it suits for outdoor.
Ambient air temperature: maximum 40℃, minimum -40℃, average value of the ambient air temperature does not exceed 30℃ measured during a period of 24h.
Altitude: The altitude does not exceed 1000m (this is the routine requirement, if there is any different requirement, we can provide the products with 2000m, 3000m, 4000m or 5000m altitude according to the clients’ requriments).
The average value of the relative humidity does not exceed 95% at 25℃ measured during a period of one month.
The maximum wind speed does not exceed 34m/s.
Eerthquake intensity does not exceed 8 degree.
There have to be no gas that may seriously affect the insulation and conductive ability of electric equipments, steam, ash, salt, chemical deposit, pollution and corrosive or explosive material.