English
Pусский
Deutsch
Français
Portugues
العربية
lingua italiana
日本語
한국어
Türk dili
Noticias de la compañía | estranguladores de modo común | Noticias de la Industria | transformador|RJ45 connectors
1. La relación de voltaje
Establecer el número de dos grupos de low-frequency transformador bobinas como N1 y N2, N1 es el devanado primario, N2 es el devanado secundario.
Se aplica un voltaje de CA al devanado primario y se genera una fuerza electromotriz inducida en ambos extremos de la bobina secundaria.
When N2>N1, its induced electromotive force is higher than the primary voltage added, this low-frequency transformador is called boost low-frequency transformador.
La eficiencia de 2.
At rated power, the ratio of the output power to the input power of the low-frequency transformador is called the efficiency of the low-frequency transformador, that is, η=P2/P1×100%.
Where η is the efficiency of the low-frequency transformador, P1 is the input power and P2 is the output power.
When the output power P2 of the low-frequency transformador is equal to the input power P1, the efficiency η is equal to 100%, at this time the low-frequency transformador will not produce any loss, but in fact this low-frequency transformador does not exist, low-frequency transformador transmission power always produce loss, this loss mainly copper loss and iron loss.
The efficiency of the low-frequency transformador is closely related to the power level of the low-frequency transformador. Usually, the greater the power, the smaller the loss and the higher the efficiency.
Por el contrario, cuanto menor sea la potencia, menor será la eficiencia.
3. Frecuencia de trabajo
Because the low frequency transformador core loss and frequency is very important, it should be designed and used according to the frequency of use, this frequency is called the working frequency.
4. Tensión nominal
This parameter refers to the voltage allowed to be applied on the primary winding of the low-frequency transformador. The voltage applied on the primary winding of the low-frequency transformador shall not be greater than the specified value in normal operation.
5. Potencia nominal
Rated power refers to the low frequency transformador in the specified frequency and voltage, can work for a long time, and does not exceed the specified temperature rise of the secondary output power.
The unit of rated power of low-frequency transformador is VA(volt ampere), instead of W(watt). This is because there will be part of reactive power in the rated power, so it is more accurate to express VA.
6. Sin corriente de carga
When the low-frequency transformador secondary winding open, there is still a certain current in the primary coil, this current is called no-load current.
La corriente sin carga se compone de corriente de magnetización (que genera flujo magnético) y corriente de pérdida de hierro (causada por la pérdida del núcleo).
Para el low-frequency transformador with 50Hz power supply, la corriente sin carga es básicamente igual a la corriente de magnetización.
7. Sin pérdida de carga
When the low-frequency transformador is open in the secondary, the power loss measured in the primary is the no-load loss.
8. Resistencia de aislamiento
This parameter represents the insulation performance between each coil of the low-frequency transformador and between each coil and the iron core.
La resistencia de aislamiento está relacionada con el rendimiento, la temperatura y la humedad del material aislante utilizado.
Insulation resistance is a parameter that represents the insulation performance of low-frequency transformador. It is the ratio of voltage and leakage current applied on the insulation layer, including the insulation resistance value between windings, windings and core and shell.
Debido a que la resistencia de aislamiento es muy grande, generalmente solo se puede usar un medidor de megaohmios (o un bloque de multímetro R × 10kΩ) para medir su resistencia.
If the insulation resistance of the low-frequency transformador is too low, the case may be charged in use and even the low-frequency transformador winding may be broken down and burned.
9. El aumento de temperatura de
When the low-frequency transformador is put into operation, the part where the coil temperature is higher than the ambient temperature is called the coil temperature rise.
La parte del núcleo en la que la temperatura de funcionamiento supera la temperatura ambiente se denomina aumento de la temperatura del núcleo.
Hay dos tipos de aumento de temperatura: el aumento de temperatura más caliente y el aumento de temperatura promedio.
Generally, the average temperature rise of the coil is taken as the temperature rise index of the low-frequency transformador.
Temperature rise is an important factor affecting the life of low-frequency transformador.
The allowable temperature rise of a low-frequency transformador is determined by its insulation and heat resistance class.
1. La relación de voltaje
Establecer el número de dos grupos de low-frequency transformador bobinas como N1 y N2, N1 es el devanado primario, N2 es el devanado secundario.
Se aplica un voltaje de CA al devanado primario y se genera una fuerza electromotriz inducida en ambos extremos de la bobina secundaria.
When N2>N1, its induced electromotive force is higher than the primary voltage added, this low-frequency transformador is called boost low-frequency transformador.
La eficiencia de 2.
At rated power, the ratio of the output power to the input power of the low-frequency transformador is called the efficiency of the low-frequency transformador, that is, η=P2/P1×100%.
Where η is the efficiency of the low-frequency transformador, P1 is the input power and P2 is the output power.
When the output power P2 of the low-frequency transformador is equal to the input power P1, the efficiency η is equal to 100%, at this time the low-frequency transformador will not produce any loss, but in fact this low-frequency transformador does not exist, low-frequency transformador transmission power always produce loss, this loss mainly copper loss and iron loss.
The efficiency of the low-frequency transformador is closely related to the power level of the low-frequency transformador. Usually, the greater the power, the smaller the loss and the higher the efficiency.
Por el contrario, cuanto menor sea la potencia, menor será la eficiencia.
3. Frecuencia de trabajo
Because the low frequency transformador core loss and frequency is very important, it should be designed and used according to the frequency of use, this frequency is called the working frequency.
4. Tensión nominal
This parameter refers to the voltage allowed to be applied on the primary winding of the low-frequency transformador. The voltage applied on the primary winding of the low-frequency transformador shall not be greater than the specified value in normal operation.
5. Potencia nominal
Rated power refers to the low frequency transformador in the specified frequency and voltage, can work for a long time, and does not exceed the specified temperature rise of the secondary output power.
The unit of rated power of low-frequency transformador is VA(volt ampere), instead of W(watt). This is because there will be part of reactive power in the rated power, so it is more accurate to express VA.
6. Sin corriente de carga
When the low-frequency transformador secondary winding open, there is still a certain current in the primary coil, this current is called no-load current.
La corriente sin carga se compone de corriente de magnetización (que genera flujo magnético) y corriente de pérdida de hierro (causada por la pérdida del núcleo).
Para el low-frequency transformador with 50Hz power supply, la corriente sin carga es básicamente igual a la corriente de magnetización.
7. Sin pérdida de carga
When the low-frequency transformador is open in the secondary, the power loss measured in the primary is the no-load loss.
8. Resistencia de aislamiento
This parameter represents the insulation performance between each coil of the low-frequency transformador and between each coil and the iron core.
La resistencia de aislamiento está relacionada con el rendimiento, la temperatura y la humedad del material aislante utilizado.
Insulation resistance is a parameter that represents the insulation performance of low-frequency transformador. It is the ratio of voltage and leakage current applied on the insulation layer, including the insulation resistance value between windings, windings and core and shell.
Debido a que la resistencia de aislamiento es muy grande, generalmente solo se puede usar un medidor de megaohmios (o un bloque de multímetro R × 10kΩ) para medir su resistencia.
If the insulation resistance of the low-frequency transformador is too low, the case may be charged in use and even the low-frequency transformador winding may be broken down and burned.
9. El aumento de temperatura de
When the low-frequency transformador is put into operation, the part where the coil temperature is higher than the ambient temperature is called the coil temperature rise.
La parte del núcleo en la que la temperatura de funcionamiento supera la temperatura ambiente se denomina aumento de la temperatura del núcleo.
Hay dos tipos de aumento de temperatura: el aumento de temperatura más caliente y el aumento de temperatura promedio.
Generally, the average temperature rise of the coil is taken as the temperature rise index of the low-frequency transformador.
Temperature rise is an important factor affecting the life of low-frequency transformador.
The allowable temperature rise of a low-frequency transformador is determined by its insulation and heat resistance class.
