According to formula (2) from , it follows that for a linear increase in the electric field strength, the corona current increases linearly, and when [E.
Hence, we can assume that there is a design of the top of the lightning detector, which will provide the corona current optimal for minimizing the formation time of the oncoming leader.
Now, the application of the mathematical model of the corona current can effectively avoid the loss of the power of the corona, radio interference, and protect the insulation performance of high voltage equipment.
The principle of mathematical model of corona current based on neural network curve fitting
In the actual operation process, the mathematical model structure and the steps are determined by the fitting process of the network corona current waveform.
The waveform fitting of corona current in the double exponential function model
The total corona current is the sum of the current directed from ionizing wires to collecting plate and the current between wires and the grid.
Corona current density distribution on the surface of plane electrode 1 experimental data are given in Fig.
Measured value of corona current determined from (28) is 420 [micro]A/m, corresponding computed value of corona current is 441 [micro]A/m.
where i is the value of the corona current per unit of electrode length.
At the wire cross-section diameter d = 0,6 mm, cylinder diameter D = 100 mm, wire potential U = -25 kV and corona current per unit of electrode length I = 0,5 mA/m space charge density near the wire was 170[micro]C/[m.
The researchers generate the corona current
-- a stream of ionized air -- by placing a high-voltage electrode near a conducting surface such as a recently painted metal panel.