What is the problem of insufficient power supply for the transformer of the engraving machine

The main reason is that the power of the electrical appliance is greater than the output power of the transformer, and the current is too large, which increases the voltage drop of the secondary coil and decreases the output voltage.

Engraving machine: Engraving is a kind of drilling and milling combination processing from the processing principle, and a variety of data input modes of engraving machine are easy to use according to needs. There are two types of computer engraving machines: laser engraving and mechanical engraving, both of which are divided into high power and low power.

Because the range of applications of engraving machines is very wide, it is necessary to know the most suitable application range for various engraving machines. The low-power ones are only suitable for two-color boards, architectural models, small signs, three-dimensional crafts, etc. Because the power is too small, it greatly affects the range of its application.

A high-power engraving machine can do something with a low-power engraving machine. It is most suitable for large-scale cutting, relief, and carving.

The output power of a transformer is determined by the rated output voltage and rated output current. The phenomenon of insufficient power supply is mainly due to the fact that the power of the electrical appliance is greater than the output power of the transformer, and the current is too large, which increases the voltage drop of the secondary coil; As a result, the output voltage decreases. This will cause the transformer to heat up excessively, which can damage the transformer.

The only way to solve this problem is to replace a transformer with an output power greater than the power of the electrical appliance.

It may be that the voltage is unstable, or the wire is aging, check it.

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The main reasons for the low output voltage of the transformer are as follows:

Whether the secondary load is too heavy and the current exceeds the rated current.

The transformer is faulty, and the secondary has an inter-turn short circuit.

If it is a self-made transformer, it may be caused by the wrong transformation ratio (the ratio of turns in the primary and secondary stages), or the wire diameter is too thin.

The primary voltage is low.

Transformer Introduction:

A transformer is a device that uses the principle of electromagnetic induction to change the alternating voltage, and the main components are the primary coil, the secondary coil and the iron core (magnetic core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage regulation (magnetic saturation transformer), etc.

The no-load output voltage of the transformer is normal, and then phase A and phase C are normal after loading, but the voltage of phase B is always low

The low output voltage of the transformer may be due to:

the "number of turns" error of the secondary coil;

Switching "frequency" deviation of high-frequency ** device;

Variation in the "width" of the rectangular wave of the high-frequency ** device;

fluctuations in the "voltage" of the primary power supply;

changes in the "temperature" of the environment, and so on.

Solution: 1. Add a stabilized power supply.

2. There is a switch at the output part of the transformer, which can adjust the voltage, but it must have a high-voltage operation certificate to operate.

Hello:——1,Common 10 kV : kV power transformer, if the output voltage is low, should the primary input voltage be measured is normal?

If the line voltage input is low, the output voltage will be low.

The primary side of the power transformer of your unit is designed with a "tap", and the voltage range of the tap is 5%, that is: 10500 V, 10000 V, 9500 V, a total of 3 gears. If the primary input voltage is normal, but the secondary output voltage is low, should I check whether the tap access is not suitable?

It should be noted that the input voltage is normal, and the higher the tap voltage of the access, the lower the output voltage; There are two kinds of taps: five-load adjustment and on-load adjustment, which should be paid attention to when adjusting.

1. Is the transformer overloaded? will reduce the voltage.

2. The input voltage is low; Turn over the tap, put it in the third gear 9500 voltage will be the highest.

1；Low input voltage; 2；Excessive load, 3;The transformer is faulty.

Either the overload or the wrong number of coil turns or the transformer is broken.

The engraving machine transformer is divided into autotransformer and power transformer. The transformer of the engraving machine needs to work within the rated voltage parameters, and the function of the transformer of the engraving machine is to adjust the voltage instability during the working process of the machine, so that the engraving machine can still work normally under the condition of unstable voltage.

During the use of the transformer of the engraving machine, the transformer heats up in the following situations:

First, the transformer capacity is too small and overloaded, which makes the transformer temperature rise.

Second, the machine works for more than 12 hours, and the transformer of the engraving machine will heat up when working.

Third, the local voltage instability is serious, and such a long-term voltage transformation will also cause this situation.

Are your 4 cameras powered by one power supply? In this case, the power supply is low. You can add a power supply. It has nothing to do with nearby power lines.

I think the quality of the power cord you use is relatively poor, the fastest and best solution is to buy two DC 12V transformers connected to the monitoring front-end, and directly use 220V power supply to the front-end transformer.

Hello, is yours centrally powered? There is no particularly good way to do this, it is best to use independent power supply, and it is no problem to go with the wires, just don't be insufficient.

If the camera is normal, it means that there is a problem with the power supply or power cord, if it is not normal, it is a problem with the camera.

Find out the cause and solve it in the corresponding way.

Solution to low equipment voltage:

1. In addition to thickening the incoming wires, it is also necessary to check whether the power factor of the electrical equipment is relatively low, which is caused by the increase in the voltage drop of the line. If it is a power factor, it is good to compensate for reactive power.

Second, some equipment can also be energy-saving transformation, replace the high efficiency of the motor. Energy-saving equipment consumes less electricity and can solve the problem of low voltage.

3. Install a three-phase automatic compensation power regulator, automatic self-coupling adjustable transformer, and use this device to stabilize the insufficient voltage. Improve higher power compensation.

In general, there are several reasons for low voltage:

1. The power supply capacity of the power supply (transformer) is small;

2. The low-voltage power supply line is too long;

3. The cross-section of the low-voltage power supply line is small.

Solution: If it is the first reason, the only way to do this is to ask the power supply bureau to increase the capacity.

If it is the second reason, the only way to move the transformer is to move it so that the transformer is as close to the electrical equipment as possible.

If it is the third reason, the only way to do this is to replace the line with a larger cross-section.

2.The line from the pretransformer power to your motor is too long or the impedance is too large. If it is the first case, it is useless to add anything on your side, and the only way is to negotiate with the power supply department to solve the problem of replacing the high-power transformer.

If it is the second type, adding a booster transformer or voltage regulator can solve the problem, but it is recommended that you check the line first, whether the line is not connected well and the resistance is too large (oxidation at the wiring, the wire is too thin, too long, etc.), the cost and workload of changing the line is definitely much lower than buying equipment. Of course, changing the connection method of the motor, such as the Y-type connection to the triangle connection, will also help, the premise of this change is that your voltage can not be too high for the triangle connection and is stable, otherwise it will still burn the motor because the motor winding voltage is too high.

Capacitor compensation, so that the power factor is compensated to the left and right, your current power factor must be very low, not only the voltage is low and the waste of reactive electricity is very large, you must mention the power factor.

Adjust the tap-changer of the transformer to turn up the voltage.

When connecting and transferring data, it can be solved by connecting another power supply on the hard disk.

It must be a good control transformer, it is best to choose a control toroidal transformer, and Hengniu transformer can be customized according to individual needs.