Can AC380 be used as a PLC power supply after changing to 220v?

This is probably not possible, because after 220V, you need to adjust the voltage to change the PLC, and the circuit needs to be done.

It's not very good to use it directly.

No, the power supply of the PLC must be DC.

Of course, this can't be used, so it's easy to become a short circuit.

Of course you can, if your PLC power supply is 220 volts. Then you can do it without a problem.

Of course, as long as it is a standard 220 volt working voltage, it can be operated, and our PLC power supply can be used. No problem at all.

Automation equipment is generally commonly used 380VAC, 220VAC, 24VDC.

The three-phase power supply (air supply, water, etc.) of 380VAC is generally introduced from the main power supply of the factory, which is used to drive various motors.

Then 380VAC leads out 220VAC through the transformer or directly connected to the L, N two levels as the lighting power supply, programming the power interface and other power supplies.

Then the 380VAC is converted into 24VDC power supply through the transformer, which is mainly used for various low-voltage components in the cabinet, such as PLC modules.

Generally, 10VDC and 5VDC are some test equipment, which generally have their own transformers and only need to be connected to the 220VAC power supply.

Can you use PLC movies afterward? Of course, if it were to become an AC 380, it would be a normal 220-volt power supply.

Of course, this is fine, as long as it matches the power supply pressure of the device you purchased.

If the voltage is the same, of course, it can also avoid clutter interference in the power grid

If you want to turn that 380 volt into 220 volts, he is the PLC, it is also possible, PLC, there are 220 on it, there are 110, there are 24.

If you want to turn this 38 master into 220 volts and take it on the PLC, it is also okay, but you should pay attention to the PLC power supply has 220, and there are 110 24 volts to look at the voltage of the power supply.

There is no problem with this section, such an effect can be achieved by using a transformer, and electrical components such as capacitors, capacitors, and inductors can also be used.

No twice 220 VO can be plugged with PLC power straight plug.

In this case, it is not possible, the main reason is that their power is not the same, so there will be problems in this area, so you must pay attention to this aspect.

Through the inverter group, the direct current is turned into a single-phase alternating current of 50 60Hz. Then, through the auto-coupling Wood Bridge balance transformer (AWB), the two sets of single-phase alternating current are converted into three-phase alternating current, which is sent to the power grid. (2) This kind of large-capacity balanced transformer not only has the function of voltage transformation and current transformation, but also has the full text.

It's actually nothing, and we know you can do it this way.

The kind of device you are talking about can be used as this kind of power supply, and there is no problem.

Installing a 380 220V transformer will give you a 220V power supply.

If you can, just install a 380V transformer to 220V transformer, but no, that's dangerous.

You can't replace the neutral line with a ground wire, you must connect the neutral wire and one of the live wires, thank you.

AC means AC power. 380 or 220 is the rated operating voltage.

If the working voltage on the device is AC380 220, it means that AC 380 and 220 volts are fine, but it is recommended that you check whether the binding post is marked.

The rated voltage of low-voltage electrical equipment can be 380 volt AC power supply or 380 volt 220 volt AC power input power.

You don't have this question.

Bai is comprehensive, the device should be marked with du380 220, and there is Y δ in another grid, this dao

The meaning is that when the electric plate voltage is 380V, it should be connected into a star shape, that is, the right Y shape, and at 220 hours [this 220V does not refer to the 220V voltage we usually use for lighting] to be connected to the δ shape, that is, the three-phase windings are connected to each other, A tail is connected to the B head, B tail is connected to the C head, and C is connected to the A head. It is equal to adding 220V voltage to each phase winding at both ends [This three-phase 220V voltage phase difference is 120 degrees. ]

No, 380 and 220 are talking about line voltage and phase voltage

It is completely possible to connect the PLC power supply through the 1:1 isolation transformer. It is more desirable if the transformer is shielded with electromagnetic fields (referring to grounding, filtering devices and shielding metal boxes......).）

Absolutely. But I suspect that it is not the interference from this, it should be the communication interference from the PLC to the inverter. The communication line and the power cable tray should be separated to reduce mutual interference.

The PLC should be kept away from the inverter.

If there is interference, filtering and shielding measures should be taken.

PLC power supply is divided into AC and DC, which is to be considered when you choose the age of the type, once you buy it can not be changed, most PLC AC voltage is 100-240V can work normally. 380 to 220 This requires buying a BKC-100, 380 220 transformer to be excited.

Generally, the power supply of PLC is AC220V, and some of them are DC24V.

AC380V to AC220V only needs one transformer, but the power requirements of the mega state should be considered.

Siemens. Omron. Mitsubishi. A 380 to 220 conversion requires a 380 to 220 transformer.

AC380V (two phase wires) is converted to single-phase AC110V, and one transformer is required. AC380V (two phase wires) is converted to single-phase 220V, which requires 1 transformer; Three-phase AC380V to three-phase 220V requires a special three-phase T-type transformer (three-phase T-type transformer is specially used for three-phase balance: when the AC220V load is relatively large, "refers to the ratio to the transformer capacity", directly connected to a phase wire and a neutral line will cause three-phase unbalance, the solution is to use a three-phase T-type transformer to realize the conversion of three-phase AC380V to three-phase 220V); If the capacity of AC220V is not large, convert it to one AC220V and then divide it into 2 channels through 2 fuses. If the AC220V capacity is required, please use 2 independent transformers.

If the transformer is used too much, please install it in 1 control box. To sum up, if the purpose of your transformer is only for the control loop, 1 small control transformer will solve the problem. If you're using a load, it's a big project when the load is heavy.

In the 380V power supply system, 220V is the voltage between the live wire and the neutral line, and the stability of the voltage will be disturbed by the neutral line, and the 220V obtained from the isolation transformer is relatively stable and not easy to be interfered with.

Note: When the three-phase electrical load is unbalanced, it is easy to make the neutral line live.

There are several reasons for this:

1. The incoming line of the distribution cabinet is three live wires and one grounding protection wire (R, S, T, PE), omitting a zero wire;

Second, the single-phase electricity is pressed out by three-phase electric transformer, which is more balanced three-phase electricity;

3. AC220V is generally a control line, and after using a 380V 220V isolation transformer, it is safer to operate the electricity (buttons, etc.).

Haha, it won't be! You can connect the TV to 380.

In the early days of alternating current, only 110V alternators could be built due to the limitations of generator insulation materials at that time, and a 110V AC grid was established for this purpose. Later, several countries and regions that followed the United States of course followed suit and adopted American technology, and the voltage was of course 110V. And for the reasons that are well known, we all now understand why it is these countries and regions.

Later, with the progress of technology and the improvement of the manufacturing performance of high-performance insulating materials, a 220V alternator can be built (now due to the solution of materials, the alternator can directly generate more than 10,000 volts), therefore, the power grid established by China and European countries directly adopted the most advanced 220V-240V technology at that time. Countries that have adopted 110V-127V would have had to use the same technology as they continue to use the same technology as they would if it were to replace all of their power systems with 220V.

OK. Single-phase inverter can generally be used for 380 and 220, and the power of 220 is reduced. This is specific to the instructions for the use of the inverter.

Single-phase motors. The reason why the capacitor is added is because of the shifting effect of the capacitor. Wiring method: remove the capacitor, connect the working winding and the tail of the starting winding, and lead out the terminal.

UVT connected to the inverter.

Precautions: 1. The capacitor must be removed.

2. The starting winding and the working winding of the single-phase motor should be consistent, that is, there is no distinction between the starting winding and the working winding.

3. Set the output voltage of the inverter to 220V.

The energy saving of the inverter is mainly manifested in the application of fans and pumps. After the fan and pump load adopts frequency conversion speed regulation, the power saving rate is 20% to 60%, because the actual power consumption of the fan and pump load is basically proportional to the cubic of the speed. When the average flow required by the user is small, the fan and pump use frequency conversion speed regulation to reduce the speed, and the energy-saving effect is very obvious.

Precautions. It is reasonable to select the inverter according to the actual power of the motor, so as to avoid the selection of the inverter is too large, so that the investment increases. For light loads, the inverter current should generally be rated as the motor current.

to choose, or according to the manufacturer's indication in the product with the output power of the inverter.

The rating is matched with the maximum motor power to select.

Power supply voltage and fluctuations. Special attention should be paid to adapting to the setting value of low voltage protection of the inverter, because in actual use, the possibility of low grid voltage is greater. Mains power frequency fluctuations and harmonic interference.

Interference in this area increases the heat loss of the drive system, resulting in increased noise and reduced output.

The above content reference: Encyclopedia - inverter.

Yes, I changed the 11 kW three-phase inverter, and the single-phase input can directly start the motor.

Frequency converters. In general, a device that converts alternating current with a fixed voltage and frequency into alternating current with variable voltage or frequency is called an inverter. In order to generate variable voltages and frequencies, the device first converts three-phase or single-phase alternating current to direct current (DC).

The direct current (DC) is then converted into three-phase or single-phase alternating current (AC), and we call the device that achieves this conversion an "inverter".

Functions of the inverter:

1.AC-DC-AC frequency converter first fixes the frequency of alternating current'Rectifier'into direct current, and then direct current'Inverter'Three-phase alternating current with arbitrary frequency adjustment (complex structure, expensive, mostly for large industrial use).

2.The AC-AC inverter directly converts the alternating current with a fixed frequency into alternating current with an arbitrary adjustable frequency and the same number of phases before and after conversion (simple structure, widely used, and suitable for large, medium and small powers).

3.Three-in, three-out inverter The input and output sides of the inverter are three-phase alternating current. The vast majority of industrial drives fall into this category.

4.Single-in, three-out inverter The input side of the inverter is single-phase alternating current, and the output side is three-phase alternating current. Frequency converters in household appliances fall into this category and usually have a smaller capacity.

To sum up, the inverter can easily turn 220V AC into 380V AC.

Equipment that needs to be supplied by an isolated transformer cannot be directly connected to 220V.

An isolation transformer is a 1 to 1 transformer. The primary single-phase is 220V, and the secondary is also single-phase 220V. or primary three-phase 380V, secondary is also three-phase 380V. or 380V220V transformer to other voltage levels.

First of all, the neutral wire (neutral wire) of the AC power supply voltage we use is usually connected to the earth, and people will be electrocuted when they come into contact. The secondary stage of the isolation transformer is not connected to the earth, and there is no potential difference between any two of its wires and the earth. People will not be electrocuted if they touch any of the wires, so it is safer.

Secondly, the output and input of the isolation transformer are completely "open" and isolated, which effectively plays a good filtering role for the input end of the transformer (the power supply voltage supplied by the power grid). This provides a pure power supply voltage to the electrical equipment.

No! The primary voltage of 380 220V means that this transformer can be connected to the 380V network or the 220V power grid by changing different terminals, not in the primary to convert 380V to 220V, your understanding is completely wrong.

If the 380V coil and the 220V coil are separate windings, they can be used as 220V outputs. The capacity is all 1000VA.