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The reason for the transformer coil current zha machine, I think it is nothing more than that the voltage is too large, or the current is too large, these reasons are caused.
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It may be that their current is unstable, so this situation will occur, and it is generally recommended to find some relevant maintenance service personnel, so that they can directly help you check it.
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I think that the reason for the current explosion of small transformer coils should be overloaded, and overloaded for long-term use. For long periods of time. It is a small transformer coil current fryer.
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The main reason is still excessive, some may be his quality problems, its coil is not to a certain number, it is easy to be damaged by excessive current, so you must choose a good brand, and then the voltage and current must be normal.
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The small voltage current blew up the transformer, and the reason must have been that the woman's electricity power was too much higher than the output power of the transformer.
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The reason for the line-current turnstile of a small transformer must be that the power is too high and the pressure is too high.
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The reason for the transformer coil current battle is because the oil catcher is running too fast, and then uh the power is too fast, well, it made him produce this.
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The small transformer coil current gate indicates that the internal transformer is stable, and the line is unstable, resulting in unstable current output.
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I think the best way to open the operating principle of the transformer coil of Xiaoxing is to open its manual and look through it carefully, because every instrument has its manual, and its principle will be very clear.
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: The original coil is connected to alternating current, and the current change causes the magnetic change of the original coil, and the magnetic change of the original coil causes the magnetic change of the secondary coil, which causes the secondary coil to produce induced current Supplement: The original coil is connected to the AC power supply.
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The reason for the small transformer, the coil current fry, hello friends, the reason for the small transformer, the coil current fryer is that the current is too large and the coil can't bear it, so it will be a turnstile.
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In the case of a transformer coil like this bear, the cause of the current explosion is likely to be a slight short circuit, or the voltage is too high.
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The reason is that the ratio of your coil diesel to the main line is not the same as that of the negative coil, which causes the current to overheat.
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Small transformer, if the coil current is due to its voltage regulation is not high, so some of his series can be measured in detail.
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If the current and voltage do not match, it will be fried, so the current and voltage are batched or not is the most important.
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Small transformers cannot support high currents.
So the fryer. It is recommended to replace the larger one.
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If this kind of problem occurs, it is recommended that your after-sales personnel help you install and repair it in time.
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The principle of small transformer coil current frying machine is generally that there must be a fault in the motor, you can find information about the elevator, inquire about what causes it, or consult the manufacturer.
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It could be that the current is too large for a moment to exceed its load. That's why the chicken is fried.
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Small transformer coil frying machine, mainly due to short circuits.
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The secondary coil is equivalent to the output side, and the power output of the ideal transformer is equal to the input power, so the secondary coil determines the original coil current.
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Just like a dam, the subcoil is likened to a dam, and the size of the dam determines the size of the water flow. The original coil is the reservoir, and the capacity of the reservoir is unchanged.
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In fact, when the secondary coil is broken, the original coil has a current, which is used to maintain the transformer's own loss and excitation. Even if the "ideal transformer" has no self-loss, the excitation current still exists, but its phase angle lags by 90 degrees compared to the voltage, which is a reactive current, and the power factor is equal to 0, and does not consume active power. However, in the idealized case, the permeability of the original coil core is infinite, there will be no magnetic flux leakage, no eddy current will be generated, the resistance is zero, and the inductive reactance is infinite, so the excitation current tends to be close to 0. Adopt it.
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For small power transformers, the number of primary turns determines the primary withstand voltage of the transformer, the number of secondary turns determines the voltage on the secondary line of the transformer (the ratio to the primary), and the size of the wire diameter determines the current of the transformer.
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.
According to the use, it can be divided into: power transformer and special transformer (electric furnace transformer, rectifier transformer, power frequency test transformer, voltage regulator, mining transformer, audio transformer, intermediate frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer, reactor, transformer, etc.). Circuit symbols often start with t.
Example: T01, T201, etc.
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If the number of primary turns is less, and the number of secondary turns is the original, then the voltage ratio (transformation ratio) of the primary and secondary stages will be changed, if the original primary power supply voltage is maintained, then the secondary voltage will not be the original value. If the wire diameter is smaller, the current density of the wire will be larger, and the transformer will be more likely to heat up
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If the number of turns of the coil is small, the magnetic flux of the core will increase, the iron loss will increase, and the heating will be serious.
The wire warp is thin, the current carrying capacity is small, and the internal resistance is large. The transformer voltage regulation is large.
You can tell me the specific data of your transformer, the primary 2300-turn transformer, if the core cross-sectional area is 4 square centimeters, it is okay.
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The number of primary turns is insufficient, the pressure resistance drops, it is easy to heat up, and it burns out severely. The primary wire diameter is reduced, the current is reduced, and the transformer capacity is reduced. You can calculate the reduction in proportion to the original data.
In addition, the voltage of the secondary output is higher than the original.
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The transformer is the transmission electrical power, ignoring the transmission loss:
u1 * i1 = u2 * i2
u1 / u2 = i2 / i1
The primary current of the step-down transformer is less than the secondary current;
The primary current of the step-up transformer is greater than the secondary current.
The current of the primary coil changes with the secondary coil" does not contradict the above properties:
Same transformer u1 u2 = n1 n2 = constant value. i2 changes i1 follows the change.
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The law of conservation of energy, the conversion of power, the primary power is equal to the secondary power plus the loss.
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The primary coil is connected with alternating current, and the current change causes the magnetic change of the primary coil, and the magnetic change of the primary coil causes the magnetic change of the secondary coil, which causes the secondary coil to produce induced current.
Supplement: The original coil is connected to the AC power supply, and there is naturally a current.
Supplement: The combination mode of metal particles in the metal wire is metal, which has a large number of negative electrons that can move freely, and the electrons move directionally when there is voltage at both ends of the conductor to form a current.
First of all, the transformer is used for alternating current, the so-called alternating current is that the current size and direction change periodically with time, and the same is true for alternating voltage.
The formula for household alternating current is: e=esin t i=isin t (where e represents instantaneous electromotive force (i.e., voltage), i represents instantaneous current, e represents the maximum voltage, i represents the maximum current, is the angular velocity of the generator coil rotation (radian unit)), from the formula we can know that the alternating current voltage and current change from moment to moment, the reason why we say that the voltage is certain, for example, the household alternating current is 220 volts, which means that the effective value of the household alternating current voltage is 220 volts, and the effective value = the maximum value (Root number 2).
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By the generator, the generator is equivalent to a power source.
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The power of the primary and secondary coils of the transformer: p1 p2
i1u1 i2u2 (or i1n1 i2n2 or i1 i2 n2 n1).
The current in the primary and secondary coils of the transformer is the same as the same.
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First of all, the energy is conserved in the primary and secondary coils of the transformer, i.e., u1i1=u2i2 because, u1:u2=n1:n2
So, i1:i2=n2:n1
n1 and n2 are the turns of the primary secondary coil.
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This is very simple, the ratio of voltage is equal to the ratio of the number of turns of the primary and secondary coils, and the current is equal to the ratio of the reciprocal number of turns of the primary and secondary coils.
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The input power of the transformer is approximately equal to the output power, and if it is an ideal transformer, the input power is equal to the output power. Because it is a step-down transformer, the voltage of the primary coil is greater than the voltage of the secondary coil, and the power is equal, so the current of the primary coil is less than the current of the secondary coil. The current of the primary coil is small, so the wire is thinner than the secondary coil.
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First winding primary, after the primary winding, use capacitor paper or kraft paper to wrap three layers, as the primary insulation, and then winding the secondary, the secondary two 54 turns (the input of this transformer is 220 volts, the output is double 27V) according to this can be concluded that each circle is, that is, the primary is 440 circles. After the secondary winding, the second layer of capacitor paper or kraft paper is wound to insulate the iron core. Then insert the iron core, which can be crossed with three iron cores together. >>>More
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