What does voltage drop mean?

Question 1: What does the voltage drop of the cable mean? The principle is that the voltage drop of the cable cannot exceed 5% of the power supply voltage. That is, the line voltage drop of 400V power supply line is-\ 20 V; The minimum load voltage of 380V shall not be lower than 361v; ;

Question 2: What does the voltage drop in the circuit mean? Did the voltage drop? Voltage drop is the change of energy.

First, the fluid pressure drops.

Pressure drop caused by energy loss when a fluid flows in a pipe. This energy loss is caused by the collision and momentum exchange of fluid particles when overcoming internal friction and turbulence, which is manifested as the pressure difference before and after the fluid flows, that is, the pressure drop.

The pressure drop varies with the flow velocity in the pipeline.

When the air conditioning system is running, whether the smoothness of the pipeline and the connection mode will shrink the hole and throttle will also affect the pressure drop.

Second, the voltage drops.

The change of electric potential (potential) relative to the same reference point after the current flows through the load is called voltage drop, which is referred to as voltage drop for short.

Simply put, the potential difference (potential difference) across the load can be considered as voltage drop. Voltage drop is the driving force of current flow. If there is no voltage drop, there is no current.

For example, the potential at point A (potential difference from zero potential) is 2V, and the potential at point B is 8V. Then, for point B, the voltage drop at point A is 6V, or for point B, the voltage drop at point A is 6V.

Question 3: What does the voltage drop in the circuit mean? Output terminal voltage-line voltage drop = terminal voltage. According to Ohm's law, if there is resistance and current on a wire, there will be voltage u = I * R, and the wire is resistive. When the wire is energized (whether the load is on or off), there will be a current, which may be small (when the load is open), and then there will be a voltage drop. This is the no-load pressure drop, which is of course very small. The voltage drop is proportional to the resistance of the conductor and the current carrying capacity of the conductor. Many times we have to consider the voltage drop of the line, especially when the line is long, mainly considering the voltage drop and the strength of the conductor. Let's talk about the voltage drop in electronic circuits first. In fact, it is all because the resistance and current in the circuit produce voltage. One or more electrical appliances have terminal voltage at both ends under the action of power supply. If it is a series circuit, different terminal voltage differences are corresponding voltage drops. Of course, the sum of multiple potential differences cannot be equal to the power supply voltage.

Question 4: What does the car voltage drop mean? Ohm's law: u = i * r.

Resistance series:

U = I * R 1 + I * R2 + ...

= U 1 + U2 + ...

The power supply supplies power to the load, and the wires connecting the power supply and the load are resistive. The current passing through the wire resistance consumes energy, and the voltage transmitted to the load decreases.

For example, the output voltage of an automobile generator is 14V, and when the headlights are turned on, the bulb voltage is only 12.5 V, and the voltage lost on the conductor drops to1.5v. If the current is 10A, the power lost on the conductor is 15W.

Question 5: What does the square of the voltage drop on the transmission line mean? It is similar to the voltage of 220. If you pull the wire too far to connect the machine, the voltage of the machine will not reach 220. It may be 185/

To avoid this, you can only reduce the voltage drop by increasing the square of the conductor.

Question 6: What does the contact voltage drop TTB mean? Voltage drop: When current passes through electrical equipment (resistor), the voltage difference between the two ends of the equipment is called voltage drop. When the current passes through a conductor (or electrical appliance), it will be subject to certain resistance.

Question 7: What does it mean that the voltage drop on the line does not exceed U? What does it mean that the voltage drop on the line does not exceed u? Give or set a voltage value, which can be a specific number or a letter. The letter means that there is no specific number, but an unknown number. The voltage drop cannot be lower than this value.

Question 8: What is pressure drop? Voltage drop: it is the drop of potential.

Its definition is this: the potential difference between two points in the road is called the voltage between these two points. This voltage drop is called voltage drop.

For example, the voltage at point A (potential difference from zero potential) is 5v, and the voltage at point B is 8v. Then, for point A to point B, the voltage drop is 3V.

Or stand at point B and say point A means the voltage drop is 3v.

..... Do you understand?

Question 9: What does voltage drop mean? This is the range of voltage drop.