Does the small resistance of the high voltage line of the car have any effect?

At present, there are two kinds of high-voltage lines, one is only a few hundred euros, and the other is more than 10k euros. The automobile high-voltage wire, also known as the high-voltage ignition coil or high-voltage bag, is used to amplify the 12V voltage provided by the battery to 30000V, and release it through the central electrode and side electrode of the spark plug, thereby igniting the mixture.

If the high-voltage coil is broken, then the electric spark released by the spark plug will be dull yellow and insufficient energy, and will not ignite the mixture well. The severe lack of energy is not even enough to allow the electrodes of the spark plug to release an electric spark, resulting in the mixture not being able to burn and resulting in a cylinder shortage.

The lack of cylinders in the engine will make the power of the engine decrease and the fuel consumption will rise, and the shaking and noise are very obvious, and the engine cylinder will only inject fuel for a long time without ignition and will cause gasoline to flood the cylinder.

I rely on you really don't know the full name of the high-voltage line is the high-voltage damping line, what resistance leakage leakage Do you think the high-voltage line is copper wire? It is conductive fiberglass, and the high-voltage wire is a wearing part, something that needs to be replaced.

If the resistance is small, the current will be large, which will burn the wire and spark plugs.

If the high-voltage coil is not wound around such a large resistance, it will not be able to induce tens of thousands of volts of high-voltage electricity to supply spark plug ignition!

Cylinder wire is also known as high-voltage wire, the cylinder wire on the general car is limited by the coating material, so it is designed to have a resistance value of about ohms, although this can effectively reduce electromagnetic interference, but the larger resistance value will reduce the transmission efficiency of the wire, resulting in greater current loss, affecting ignition.

Summary. There may be several reasons for the high insulation resistance of automobiles:1

Insulating materials are inherently highly resistive: Insulation materials used in automotive wires and cables, such as polyolefins, resins, and rubber, can be manufactured and processed due to material properties that can lead to excessive resistance. 2.

Aging of insulating materials: Wire and cable insulation materials in automotive electrical systems will deteriorate over time and lose their original properties, resulting in increased resistance. 3.

Short circuit of automobile circuit: Short circuit may occur in automotive electrical equipment, such as burning caused by short circuit, which can lead to electrical faults, such as excessive resistance. 4.

Poor connection of automobile circuits: When the circuit connection is poor, it will also affect the insulation resistance of the car, resulting in failure. To sum up, the reasons for the high resistance value of the car are more complicated, and it is recommended to go to a professional car repair shop for inspection and repair in time.

I'm sorry I don't understand, but can you elaborate on that?

There may be several reasons for the high insulation resistance of automobiles:1The insulating material itself is highly resistive:

Insulation materials used in automotive wires and cables, such as polyolefins, resins, and rubber, can be manufactured and processed due to material properties that can lead to excessive resistance. 2.Aging of insulating materials:

The wire and cable insulation materials in the automotive electrical system will age over time, lose their original properties, and lead to an increase in resistance. 3.Short circuit in the automobile circuit:

There may be a short circuit in the electrical equipment of the car, which is more than the phenomenon of burning caused by a short circuit in the land, which in turn leads to electrical faults, such as excessive resistance. 4.Poor connection of car circuits:

When the circuit connection is poor, it will also affect the insulation resistance of the car, resulting in failure. To sum up, the reasons for the high resistance value of the car are more complicated, and it is recommended to go to a professional car repair shop for inspection and maintenance.

The smaller the resistance, the better.

The current will produce heat through the conductor, and the relationship between the high-voltage line and the power station and the user is in series, since it is a series connection, it means that the current is certain, and the heating power of the wire is only related to the resistance, according to P=I 2R, the greater the resistance, the greater the heating power, and the more electric energy is lost.

Just like the electric furnace used at home, the conductor resistance in the electric furnace is very large, and the resistance of the wire in series with it is very small, also because of the series, the current flowing through the wire and the electric furnace is the same, but the wire is not hot, but the electric furnace becomes very hot, which is also because when the current is the same, the resistance is large and the power is large.

The formula p=U2 R can only be used when the currents are different and the voltages of the conductors in the circuit are the same (in parallel).

You can also think of it this way, if p=U2 R can be used in a high-voltage line, because the resistance of the high-voltage line is very small, so the voltage shared is very small (the voltage division is proportional to the resistance in the series circuit), so the small voltage is more squared, and the resulting value will be smaller, even if it is divided by a very small resistance r, this data is still larger than when the resistance of the high-voltage line is very large, and then a lot of voltage is shared and then squared, and then divided by the resistance is larger (U band squared, so you play the main factor in the change of power).

So the lower the resistance of the high-voltage line, the better.

Of course, the smaller the resistance, the better, you can think of the high-voltage wire as a wire, the terminal connected transformer as a small bulb, the small resistance of the wire, the smaller the voltage occupied, the higher the voltage occupied on the bulb, the higher the efficiency.

The greater the resistance, the more power consumed, the more loss will be so that there will be more losses from the power station to the user.

The smaller the better, here it has to be expressed by p=i square r, the current is constant, the smaller the resistance, the smaller the loss. If the resistance is large, the voltage borne by the wire is also large, so it cannot be explained by p=u square r.

The lower the resistance of the high-voltage wire, the better. The less the power loss.

The smaller the better, but when Xi'an is thick, it sinks, and it is difficult to hang.

Small p = i 2r

When the current is approximately the same, the smaller the resistance, the smaller the heating power.

That is, the loss is small.