What are the benefits of using generators with lower voltage regulation values?

Encyclopedia
10/09/2024

Improve energy efficiency

Principle

When the voltage regulation value of the generator is low, the fluctuation of the output voltage of the generator is relatively small in the case of load change. This means that in the process of transferring power to the load, there is no need to perform frequent voltage changes and adjustments, thus reducing the energy loss caused by voltage changes. For example, for some electronic devices with stable voltage requirements (such as computers, precision instruments, etc.), the lower voltage regulation value can make the generator directly supply power to these devices, without the need for complex voltage regulation circuits to adjust the voltage, avoiding the waste of energy due to the loss of power components (such as transistors, transformers, etc.) in the voltage regulation process.

Actual effect

In industrial production, many motor loads (such as asynchronous motors) are more sensitive to voltage. When the generator with lower voltage regulation value is used to supply power to the motor, the motor can obtain more stable voltage under different load conditions, thus improving the operation efficiency of the motor. For example, when the motor runs near the rated voltage, its power factor is higher, and the efficiency of converting electrical energy into mechanical energy is also higher, reducing the additional energy loss caused by voltage fluctuations in the motor (such as the torque drop caused by too low voltage, current increase, etc.).

Protective electrical equipment

Reduce the risk of overvoltage

When the load is suddenly reduced or cut off, the output voltage of the generator with low voltage regulation value will rise less. This can effectively avoid the occurrence of overvoltage phenomenon and protect the electrical equipment connected to the output of the generator. For example, in the power supply system of medical equipment (such as heart monitors, ventilators, etc.) in some hospitals, if the voltage regulation value of the generator is high, when the sudden shutdown of some large equipment (such as X-ray machines, etc.), the output voltage of the generator may increase instantly, which may damage the medical equipment that is sensitive to voltage fluctuations. The generator with low voltage regulation value can control this voltage fluctuation within a small range to ensure the safe operation of medical equipment.

Reduce equipment thermal stress

The stable voltage output means that the electrical equipment will not frequently withstand the impact of too high or too low voltage due to voltage fluctuations during operation. This helps to reduce the extra heat generated by the device's internal components (such as capacitors, resistors, transistors, etc.) due to excessive voltage, thereby reducing the thermal stress of the device and extending the service life of the device. For example, for some equipment containing electronic circuit boards, too high voltage will make the components on the circuit board withstand more than the rated voltage stress, resulting in increased heating of the components, which will accelerate the aging and damage of the components in the long run, and low voltage regulation value of the generator can provide a relatively stable voltage to reduce this thermal stress.

Simplify power system design and maintenance

Simplified voltage regulation device

In a power system, if the voltage regulation value of the generator is low, the dependence of the whole system on voltage regulation devices (such as automatic voltage regulators, transformers, etc.) will be reduced. For small independent power systems (such as small power stations in remote areas to supply power to local residents), there is no need for complex voltage regulation equipment to meet the basic electricity needs of users. This not only reduces the construction cost of the power system, but also reduces the power supply problems caused by the failure of the voltage regulation device.

Easy maintenance and troubleshooting

Because the output voltage of a generator with a low voltage regulation value is relatively stable, it is easier to determine whether the fault is from the generator itself or an external load when the power system fails. For example, when a load device is abnormal, because the generator output voltage fluctuation is small, the technical staff can more clearly judge the load device itself (such as short circuit, overload, etc.), rather than because of the chain reaction caused by the generator voltage fluctuation. At the same time, in daily maintenance, stable voltage output also makes the maintenance of electrical equipment more regular and simple, there is no need to frequently calibrate and maintain voltage regulation equipment.


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