Can the voltage regulator be stringed with the voltage regulator, which is better, the thyristor vol

Look at your question, there are two questions, first, your load is 12V, 15A heating wire, in the selection of this voltage regulator, you should choose the rated current is greater than 15A heating wire, at this time the power selection, you need to calculate the power according to the maximum voltage of 250V to calculate the power needs to be greater than 3750W voltage regulator, the specification is relatively close to 5kVA. The circuit structure of a thyristor regulator may not be suitable for your load needs, so you may choose an auto-coupling regulator that is more suitable for your back-end load needs. And, cheaper.

Second, look at your problem, the voltage regulator and the voltage regulator are connected in series, and if you use your heating wire, you need to adjust the output voltage, so in this case, you put the voltage regulator in the pre-stage, and the voltage regulator is connected to the output of the voltage regulator. At this time, the output low voltage you adjust is more stable. There will be no change in the temperature of the heating wire due to the change of grid voltage.

The input and output wires are made of square copper wires, which can barely be used if the distance between the output and the heating wire is short, and it is recommended to use a copper flexible wire greater than or equal to 4mm2 between the voltage regulator and the heating wire in the case of long-term use.

Hello This question includes your follow-up questions from several aspects:

1. There should be no transformer in your thyristor's voltage regulator, the 220V power supply is connected to the load through the thyristor, the input and output currents are 15A, and the square safe current carrying capacity is, so the heating number is normal.

2. The regulated power supply (whether it is a transformer type or a switching power supply) is isolated, that is, the current of the 220V input terminal and the 15V output terminal is different. p=u i,15 15=225w,input current i=p u,225 220=,so the input terminal will not heat up.

3. Whether the voltage regulator and the voltage regulator can be connected in series depends on their structural form, if it must be stringed, there can be no transformer-type inductive load behind the thyristor, and the front of the thyristor voltage regulator cannot be DC. (Of course, this is the most common application).

4. In your case, it is best to use a stabilized power supply. The main reason is that the voltage of your load is too low, and the current is large, it is the best choice for the thyristor voltage regulation of the heating device, such as the range of 170V-220V adjustment is still good.

Yes, but the power of the regulator in the front stage is greater than that of the regulator in the back stage. The regulator needs to be an auto-coupling regulator

The voltage regulator can control the unstable voltage within a certain voltage range to protect the electrical appliances in the home from being burned out.

The voltage regulator is to convert a certain volt voltage (such as AC voltage 220V) into the voltage required by electrical appliances, and there should be a voltage regulator in each electrical appliance, such as the power supply in the computer, which will adjust the voltage of 220V into a few volts or more than ten volts to supply the motherboard or hard disk. And a good power supply will also have a voltage regulator to prevent the voltage from changing too much and burning out the computer.

A voltage regulator is mainly used to stabilize voltage and is a device that automatically tracks or adjusts voltage. Its functions are relatively complete.

The voltage regulator is actually also used to adjust the voltage, but this kind of voltage regulator does not have the ability to automatically track.

The size of the voltage needs to be artificially mediated according to the specific situation!

The difference between a voltage regulator and a voltage regulator.

A voltage regulator is a device that stabilizes the output voltage. All voltage regulators utilize the same technology to stabilize the output voltage, and the output voltage is sampled by a voltage divider connected to the inverting input of the error amplifier, and the inverting input of the error amplifier is connected to a reference voltage vref. The reference voltage is generated by a bandgap reference source inside the IC.

An error amplifier always tries to force its inputs to be equal. For this purpose, it provides the load current to ensure that the output voltage is stable.

The structure of the voltage regulator is similar to that of a general wirewound asynchronous motor, but because it is often working in a braking state, its principle of action is actually similar to that of a transformer. The pressure regulator is equipped with a worm gear transmission mechanism to make the rotor produce angular displacement; or brake the rotor. When the relative angular position of the rotor is changed, for the single-phase voltage regulator, the cross-chain magnetic flux between the stator winding and the rotor winding is changed, so that the induced potential of the secondary winding changes. For the three-phase voltage regulator, the induced potential phase on the stator winding and the rotor winding are changed, and the output voltage is also smoothly changed by means of the auto-coupling line connection surface.

To put it simply, the regulator is manual, manually boosting when the voltage is low, and manually returning to the non-boosting position when the voltage is high. The voltage regulator is an automatic voltage regulator, which is a circuit that uses the output voltage as a reference system, and automatically boosts when the output is low, and automatically lowers the voltage when the output is high.

Voltage regulators and regulators are AC and DC. As the name suggests, the voltage regulator is to stabilize the voltage at a certain point, while the voltage regulator is to make the voltage in a certain area can be adjusted, and the effect is different.

A voltage regulator is used to regulate voltage. It is generally stable at 220V, and the voltage regulator is used to regulate the voltage. It can be adjusted from 0-250V, and you can adjust it as much as you want, and the effect is different.

It's definitely different. One voltage regulator and one voltage regulation, the difference is that the voltage regulator can stabilize the voltage at a fixed voltage. Generally, yes. According to the grid voltage.

The output voltage of the regulator is constant. The condition is that the input voltage is within a certain range. The output voltage of the regulator is adjustable. And generally fluctuate with the rise and fall of the input voltage.

In layman's terms, the voltage regulator can automatically and stably output a rated voltage within a certain voltage range, such as the input voltage of the single-phase regulator is 160V-250V, and the voltage regulator can output 220V stably. The voltage regulator is just the opposite of the voltage regulator, the voltage regulator is given a rated voltage, and different voltage values can be output through the handwheel adjustment, such as a single-phase voltage regulator, the rated input voltage is 220V, and the output can be adjusted arbitrarily from 0V-250V.

The role is different, one is used for voltage stabilization, and the other is used for voltage regulation.

Wuhan Sanke Voltage Regulator, Voltage Regulator Sales Department, Maintenance Department 027-61862011. You get in touch. You can consult for details.

The difference is known literally, one is to stabilize the pressure, the other is to adjust the pressure, the encyclopedia has, the principle of the voltage regulator: when the input voltage or load changes, the control circuit sampling, comparison, amplification, and then drive the servo motor to rotate, so that the position of the carbon brush of the voltage regulator changes, and the coil turns ratio is automatically adjusted, so as to maintain the stability of the output voltage.

Pressure regulator, also known as pressure reducer It is an important part of the safe combustion of liquefied petroleum gas, which is connected between the cylinder and the stove The pressure regulator can not only turn the high-pressure petroleum gas in the cylinder into low-pressure petroleum gas (from 980 thousand pa to about 100 thousand pa), but also stabilize the low-pressure gas in the pressure range suitable for the safe combustion of the stove

The nature of the two is different, and it cannot be said that the one is easy to use.

Voltage regulator - can adjust the voltage you need according to your needs within a certain range. However, when the power supply fluctuates, the output voltage also changes (unstable, which is what makes it different from a voltage regulator).

Voltage Regulator – can keep the output voltage stable (the output voltage value is fixed, and the output voltage of a separate regulator cannot be changed). When the supply voltage fluctuates within a certain range, the output voltage can still be kept stable.

Nowadays, there are many that are set up with voltage regulation and voltage regulation. It can not only adjust and change the output voltage within a certain range, but also keep the output voltage stable.

The above observations are for reference.

Is it better to use a voltage regulator or a voltage regulator for welding machines.

Voltage regulators automatically adjust the output voltage, and voltage regulators usually need to be manually adjusted.