What harm can shaking electricity cause to enterprises? How should we deal with power outages?
Definition of shaking electricity:
Power grid shaking refers to the phenomenon of significant voltage fluctuations or short-term power outages that occur during the operation of the power system due to lightning strikes, short circuits to ground, fault reclosing, backup automatic switching, external and internal power grid failures of the enterprise, and the start-up of large equipment.
What harm can shaking electricity cause to enterprises? Why is it imperative to control power outages?
1. Due to voltage drop caused by shaking, the current of the running motor increases while ensuring the same output, which can easily cause overheating of the motor winding, heating of the air switch and contactor contacts, and equipment failure.
In the application of frequency converters, due to the protection functions of overvoltage, loss of voltage, and instantaneous power outage of general frequency converters, when power oscillation occurs, the frequency converter will shut down due to the action of low voltage protection.
When electric shock occurs, due to the decrease in voltage, the suction force of the contactor coil on the iron core will be smaller than the elastic force of the release spring, which will cause the contactor to release, resulting in a large number of motor shutdowns and seriously threatening the safety production of the device.
Due to the increasing scale of modern enterprise production facilities, although the duration of power outages is relatively short, the impact on production is enormous. Instantaneous voltage fluctuations will cause a large number of motor trips and equipment shutdowns. After the voltage of the power grid is restored, the motor cannot resume operation on its own, which leads to disorder in the continuous production process and may cause production and equipment accidents. For large devices, manual recovery takes a longer time, while for some unmanned devices, the recovery time is even longer. For continuous production and conveying equipment, a series of losses such as safety, reduced output, and low efficiency are very significant.
Therefore, in order to avoid losses caused by electric shock, it is necessary to control the electric shock.
How should we solve the problem of power outage? Hao'an provides you with the most ideal solution for shaking electricity!
|
Governance plan |
characteristic |
|
Dynamic Voltage Regulator AVC |
Dynamic management of power grid voltage amplitude ranging from 60% to 120%, with output voltage maintained at 100%, small footprint, and moderate cost. |
|
Implementing Control Type Dynamic Voltage Regulator AVC-RTS |
Adopting supercapacitor energy storage, the voltage amplitude of the power grid is fully controlled from 0-130%, and the output voltage is maintained at 100%, with high reliability and efficiency. |
Recommended Posts
-
Harmonics refer to the amount of electricity contained in a current with a frequency that is an integer multiple of the fundamental frequency. Generally, it refers to the Fourier series decomposition of periodic non sinusoidal electricity. In addition to the electricity at the fundamental frequency, the electricity at currents with frequencies greater than the fundamental frequency is called harmonics.The harmonic frequency is the ratio of the harmonic frequency to the fundamental frequency.... -
With the rapid development of modern power industry and significant changes in the power load structure of the system, the dependence of factories and office automation on electronic equipment is growing rapidly. For power users, voltage sag is becoming a major issue. During the whole process of power generation and use, it must span a wide geographical area, where the entire transmission system generally encounters lightning, rainstorm, gale, construction, personnel misoperation and other accidents, which cause voltage sag caused by short circuit fault, some of which are enough to affect the normal operation of sensitive equipment....
-
Voltage fluctuation refers to the periodic changes in voltage amplitude or power frequency voltage envelope within a certain range, or a series of random changes in voltage amplitude not exceeding 0.9-1.1 (p.u.); The voltage fluctuation value is the percentage of the difference between the maximum and minimum root mean square values of the voltage relative to the rated voltage. Voltage fluctuations cause fluctuations in the illuminance of lighting fixtures....
comment