NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
The external factors in the daily operation of the grid are: typhoon, flood, fire, earthquake and other natural disasters. Although natural disasters cannot be avoided, we can speed up the progress of the repair work, so that the grid will return to normal, and strengthen the external factors in the daily operation of the equipment in the daily work, mainly: typhoon, flood, fire, earthquake and other natural disasters. Although natural disasters cannot be avoided, we can accelerate the progress of repairing work, so that the grid will return to normal as soon as possible and strengthen equipment protection in daily work to reduce losses.
However, before that, you need to understand the factors affecting the power operation, let's let the power cable path instrument will give everyone a science. I. Ice disaster ice disasters include frozen rain, frost, frozen, and snow. Natural environment is abnormal, cold and cold alternate, will make the transmission line and the insulator, the line, the tower increase, the wire is affected, the arc is increased, the arc is increased, and the wire unstable continuous vibration, dancing, and serious An accident such as a disconnection and falling tower will occur.
If the insulator string, the ice is frozen, and the ice water when melts can cause short circuits in the insulator and the ice shutter occurs. Second, the span length of the power transmission line, is affected by the atmospheric pollutants, salinity, smoke, dust, etc., can cause contamination of the wire surface to accumulate, due to the large electric field around the high-voltage transmission line, easy to occur, generate a large amount of charged particles The charged particles are contaminated, increasing the conductivity of the charged particles, which is prone to discharge. Therefore, the transmission line must be cleaned in time.
Third, the temperature high temperature enhances the surface temperature of the wire, so that the heat on the original high-pressure transmission line is difficult to dissipate, the heat dissipation is poor, causing the line to have a higher temperature, causing the lead arc to increase, reduce the wire and the ground, cross-crossing The safety distance between, thereby discharging, causing a line trip. Therefore, the distance between the wires and the main land and the wires can be appropriately increased. 4
Therefore, when selection of wire insulation materials, pay attention to the hydrophobic and hydrophobic migration of the material. 5. The air pressure increases with the sea level, the air is gradually thin, the density is lowered, the pressure drop is lowered, and the breakdown voltage between the transmission wires and the facial, and the wires is lowered, and it is easy to break through. Therefore, at a high level of elevation, the wiring height should be reduced.
Sixth, the birds like birds, branches are embarked on the tower, and if the branches are placed near or fall into the transmission line, they are prone to short circuits. Large birds are flying in their wires or playing with each other, which is easy to touch multiple wires, resulting in phase short circuits or line ground tripping accidents. Therefore, you can do a specific sign on the line or tower, so that the bird is scared, away from the transmission line.
Factors such as harsh environmental climate have greatly destructive power lines, which cause power failure or damage, resulting in power outages, change loss, affect line operation conditions, transmission capacity and transportation capacity, interrupt power supply, and seriously cause the grid to solve the operation, Bring huge economic losses. The power cable path instructor believes that the safety risks and causes caused by transmission line should formulate prevention measures in time, in order to strengthen the mechanism research in related power systems, departments and related technicians, conduct reasonable design, scientific and effective control, thus safeguarding the safety and reliable transmission line Stable operation. For factors affecting power operation, the power cable path instrument is introduced here.
I hope that you can give some help to people need.
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