Power fluctuations are frequent in the petrochemical industry. I would like to ask fellow professionals how to effectively counteract such fluctuations? Those with experience as well as those without it, please share your insights

I am a manufacturer specializing in the production of products for protecting against voltage fluctuations. For contactors operating at 220V AC, I recommend the JYFS01 voltage fluctuation protection device. It is connected in front of the coil, and usually DC12V is used to keep the contactor engaged. Once a surge occurs, the CPU is immediately used to switch to electric melting discharge in order to prevent the contactor from tripping. It switches back immediately after the recovery voltage is reached; it is stable and reliable, features simple wiring, and is energy-efficient and compact. You can send a message if needed

It is hoped that it can be widely promoted. The issue lies in the space required for installation and fixation later on. Additionally, it only supports contactors with 220V coils, which is a limitation when dealing with 380V coils

First of all, I would like to thank the moderator for taking the time to leave a comment. Two of the three issues mentioned by the moderator hit the mark. The first one is the issue of installation space, that is, the product dimensions; this has indeed posed a problem for our engineers for some time, especially with small contactors of 100A or less, which are installed very closely together. If our modules are too large, it becomes impossible to install them. Fortunately, this problem has now been resolved; by reducing the size without compromising the original performance, the installation space has been significantly minimized. Secondly: the lightning surge protector developed for 380V coils is still in the trial stage, with final testing being carried out on a production line at one of our local steel mills. This cycle is at least 2–3 years. The 220V coil was tested in this way for three years before it was launched on the market. As for installation and fixation, our module, like the contactor, is secured to the guide rail, so there’s no need to worry. The moderator said that vigorous promotion is necessary; we plan to feature it on Baidu’s home page to increase its visibility. The company already has several demonstration units, and sales representatives and engineers carry these units around to conduct business activities and technical exchanges. I hope this can be of help to companies in need, achieving a win-win outcome through cooperation!

In our northwest region, power outages due to weather conditions are not very frequent, but they do occur from time to time, and each such outage results in significant losses. Moreover, some factories purchase \"insurance\"; if thunderstorms cause fluctuations in the power supply provided by the power company, the company is required to compensate the factory. Relatively speaking, the losses caused by equipment short circuits are also quite significant. Therefore, it is recommended that manufacturers of surge protection products not overlook the market in the northwest.

The insurance companies over there are really good. One of the clauses in the insurance policy our company has signed states that losses caused by fluctuations in the power supply system, voltage spikes, or power outages by the electricity provider are not covered under compensation. Hehe

Is there any for high pressure? What’s the maximum?

I like your insurance company, haha

I’m sorry, we are unable to handle voltages higher than 380V at the moment. High pressure is just too difficult to deal with

If conditions permit, the control power supply and the power supply for driving can be powered separately, with the control power supply being supplied by a UPS.

Leaving the price aside for now, UPS does not have an automatic function to prevent voltage fluctuations; in the event of a power outage, it continues to supply power to the control circuit. If power is restored suddenly at that time, it can damage the motor