 |
|
|
The electric power transmission in the world is mainly dependent on aerial transmission lines. The aerial transmission conductor is a kind of necessary carrier for energy transmitting from electricity generating place to electricity receiving place, at the time of transmission energy, transmission conductor also consumes some portion of energy. In The conductor component in ACSR is made of hard-aluminum, the conductivity of which is about 61% IACS at 20oC and the continuous operating temperature is in the range of 70~80oC. The property of this kind of conductor will be deteriorated at higher temperature, thus the operating temperature of the conductor is restricted, and the rated power transmitting capacity is restricted too. It is a never stopping pursuing for engineers in the world work in this field to research and develop new kinds of conductor so as to realize electric power transmission with high efficiency and low consumption. We possesses independent intellectual property rights: national patent series products of <<energy-saving conductor>>. The energy-saving conductor series products include: l Low-creeping energy saving conductor l Energy saving capacity increasing conductor l Energy saving capacity expanding conductor The energy-saving conductor series products have following characteristics: 1. Energy saving: The aluminum conductor in energy-saving conductor is wire or shaped wire made of soft-aluminum with conductivity of 63% IACS (at 20 oC) , has much more ascendant electric characteristics compare with ACSR conductor with conductivity of 61% IACS, and reduces about 3% energy consumption in operation. 2. Capacity increasing: The energy-saving conductor series products, according to their different structures, considering the sag value and allowable continuous operating temperature, recommended as 100 oC, 120 oC or 140 oC ~150 oC, could increase capacity 50%, 80%, 100% respectively, compare with the ACSR with same cross-section areas. 3. Small sag value: The creeping value of the steel core with high strength and low creeping is obviously lower than that of ACSR. For energy saving conductor the turn-point temperature of stress transferring due to temperature rising in operation will be appeared in advance. When operating under allowable temperature, the sag value of energy-saving conductor will be basically kept the similar value as corresponding ACSR at 70 oC caused by current carrying. 4. Long operating life time: The raw materials of energy saving conductor are almost similar to those of ACSR. Because they are more compact in structure with smooth outer surface and have good self vibration damping characteristics, they have better corrosion-resistance performance and excellent vibration-resistance performance, thus these products possess same or even longer operating life time as conventional conductor products. 5. Better performance price ratio: The prices of the energy-saving conductor series products are increased not too much compare with prices of conventional conductor products. Considering they could increase electricity transmission capacity and save energy, the construction cost and operating cost of the lines will be much lower. According to above mentioned characteristics, the energy-saving conductor series products are a new generation of conductor products with high efficiency and low energy consumption. Under the condition of not changing design principles for existing lines, they could dig out about 50%~100% increasing capacity. They will be widely used in construction of new transmission lines, as well as in capacity increasing reconstruction of existing transmission lines, in latter case, existing poles/tower could be kept, only need to replace original conventional conductors to new ones. For power transmission line they are one of the best resource saving conductors. National patent products resource saving conductors for power transmission line - energy-saving conductor series products Energy saving capacity expanding conductor products l Aluminum conductor with conductivity of 63% IACS in structure reduce about 3% energy consumption in operation; l Allowable continuous operating temperature reaches 150 oC, improve operating current-carrying capacity of the conductor; l High strength and low creeping steel core in structure reduces sag of the conductor in operation; l When operating at 140 oC ~150 oC, the sag value is the same as that of corresponding conventional conductor at 70 oC, increase current carrying capacity over 100%; l Smooth in outer surface, compact in structure, there are interspaces among layers; Have excellent self vibration damping characteristics, is of benefit to vibration-resistance; The wires in each layer of conductor are fastened up one by another, with no risk of loose or single wire breakage. l Accessories and fittings could be supplied together; but troublesome for construction, must be performed according to specification strictly. l Good performance price ratio. l Suit for construction of new transmission lines with heavy vibration, and for capacity-increasing reconstruction of existing transmission lines. Energy saving capacity expanding conductor products Main technical parameters
*: Before turn-point and After turn-point refer to the values when in operation temperature rises to around turn-point of stress transferring temperature. **:In operation, energy consumption of transmission lines is reduced about 3%. Note: The above values are for reference only. ROUND WIRE CONCENTRIC-LAY-STRANDED AERIAL CONDUCTORS According to
According to GB1179-1999
|
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||