How to adjust the dry type transformer? How to adjust the transformer voltage when the voltage is lo

There are two ways to regulate the voltage of dry-type transformer: one is on-load voltage regulation, which is relatively simple, and directly adjusts its control switch. The second is non-excitation voltage regulation, dry-type transformer non-excitation voltage regulation is through the adjustment of the transformer itself, and there are two kinds of arrangement of the connecting piece, there are two rows up and down, three contacts above, three contacts below, and the other is arranged left and right, three on the left and right.

Each of its contacts is drawn from the high-voltage winding. The function is to adjust the high voltage input voltage, normally placed in the third gear (as you see in kind), if you find that the voltage on the low voltage side is high, adjust the connecting piece to the high, that is, to the first or second gear, the voltage on the low voltage side is low, the connecting piece to the low adjustment, that is, to the fourth or fifth gear, each contact has Greek letters on the side (, indicating the fifth gear.

1) power outages; (2) Untie the right end of the connecting piece, loosen the left end, move the right end up to the 1st position, and then tighten the two screws. (3) Pay attention to safety and connection effect. (4) The power transformer adjusts the primary coil, contrary to the idea of adjusting the secondary coil, people have summarized eight words:

High to high and low to low], that is, the output voltage is high, and the connecting piece is adjusted to a high position; If the output is low, the connecting tab is placed on the low end.

To look at the nameplate, there should be each voltage on the nameplate, and your high-voltage tap should also be marked, according to the gear on the nameplate. Look at you, the gear shown in the picture may be the rated gear, and it is possible to adjust the tap tab to a vertical one (the two bosses on the left or the two bosses on the right) are not sure which is the highest gear and which is the smallest gear. In addition, you should have no excitation voltage regulation, so the power must be turned off before voltage regulation.

After the power is cut off first, after disconnecting the load on the low-voltage side of the distribution transformer, use an insulating rod to pull the high-voltage side drop-out fuse, and then take the necessary safety measures. Then unscrew the tap-changer cover on the transformer and place the dowel pins in neutral position.

When adjusting the gear, the tap changer should be adjusted to the corresponding position according to the output voltage, and the basic principles of adjusting the tap changer are:

When the output voltage of the transformer is lower than the allowable value, adjust the tap-changer position from gear to gear, or gear to gear.

Ordinary transformer can only change the tap in the case of power failure, and can not change the tap position with load, and a tap must be selected in advance for this kind of transformer, so that the voltage offset does not exceed the allowable range when the maximum load and the minimum load.

The transformer's gear picker stipulates the value of the primary and secondary voltage, and to change the voltage is to pick the gear, you need to change the secondary voltage value, so we can adjust the voltage side of the operable voltage according to the voltage value you need, or change the phase of the secondary voltage.

Answer: There is a red button on the outside of the transformer, press this red button down, and it will be adjusted to a different gear. Generally, it is divided into 3 gears, the voltage is low-key and one gear is low, and the gear adjustment is to adjust the number of turns of the coil to change the output voltage. There are two ways to adjust the tap-changer, such as the oil-immersed type, and there is a small box like an electric bell on the top, unscrew the cover, and adjust the tap-changer inside to another gear (high to high, low to low).

In the case of a dry-type transformer, there are three tap-changers on the high side of the transformer, which are also adjusted up to another gear (high to high, low to low).

Open the lid of one gear on the transformer, if you start in 1st gear, you can adjust to 2nd gear to try, if it is in 2nd gear, then adjust to 3rd gear to try, because the transformer is designed to start 10000 220, if it is low, it will become 9500 220, so you have to adjust the high gear, I hope it can help you.

Summary. 10kV line boost regulator gear adjustment 1First of all, for personal safety, the power is cut off first.

After disconnecting the power distribution, the load will occur on the low-voltage side of the transformer, and the high-voltage side drop-out fuse can be pulled away with an insulating rod, and safety measures must be taken. 2.Secondly, there is a tap-changer protective cover on the transformer, find a way to unscrew it and put the dowel pin in neutral position.

3.Finally, adjust the gear according to the output voltage, remember to adjust the tap-changer to the specified suitable position, the basic principle of adjusting the tap-changer is: When the output voltage of the transformer is lower than the allowable value, turn the tap-changer on.

10kV line boost regulator gear adjustment 1First of all, for personal safety, the power is cut off first. After disconnecting the power distribution, the load will occur on the low-voltage side of the transformer, and the high-voltage side drop-out fuse can be pulled apart with an insulating rod.

2.Secondly, there is a tap-changer protective cover on the transformer, find a way to unscrew it and put the dowel pin in neutral position. 3.

After the most sensitive, adjust the gear according to the output voltage, remember to adjust the tap changer to the specified suitable position, the basic principle of adjusting the tap changer is: When the output voltage of the transformer is lower than the allowable value, turn the tap on.

The voltage regulation gear of the 10kV transformer refers to the device that adjusts the rated voltage of the power grid in the case of load changes. The voltage regulation gear can change the voltage level at the outlet of the transformer to ensure the stability of the load supply and the accuracy of the bridge with high system voltage control.

First of all, correct one of the inappropriate places you said, 2 is generally the tap range of non-excitation voltage regulation, and in on-load voltage regulation, 8 may be more common.

I don't understand what your question is, is it missing a type, not expressing it clearly. Let me briefly explain the principle of pressure regulation.

The voltage regulation of the transformer is actually the voltage of the secondary side, because the primary side is the terminal of the line, there is no need for voltage regulation. Take the 35 transformer you said as an example, if it is a step-up transformer, the 35kV side is the secondary side, and the voltage regulation position is set on the high-voltage side, which is naturally no problem. The purpose of voltage regulation is to adjust the voltage on the side, because the side voltage is low and the number of coil turns is small, it is not easy to achieve accurate voltage regulation, which may cause the voltage ratio to be unqualified, and the current is large, and the current carrying capacity of the switch is high, so it is still on the high voltage side.

The essence of voltage regulation is to change the number of turns of the coil in the series circuit, because in this case, the number of turns on the side is constant, so to increase the voltage on the side, you can only increase the turn potential of each turn of the coil, and the output voltage of the side is equal to the product of the turns potential and the number of turns. This turn potential at 35kV is equal to the actual voltage ratio to the number of turns in the series circuit. Therefore, when the side voltage is low, it is necessary to adjust the tap on the 35kV side to increase the turn potential, and when the side voltage is high, it should be adjusted to the highest gear.

No matter how it is adjusted, it is actually guaranteed that the output voltage of the secondary side is.

It is best not to adjust the gear continuously, after adjusting the gear once, you should first observe and check the three-phase voltage after the shift, and the three-phase voltage balance meets the conditions of the shift before adjusting the next gear.

Yes, but you have to come in one gear at a time, that is, after the previous gear is adjusted, you can start the second gear.