Regarding the substation integrated protection system
Thread Content
I would like to ask everyone: what are the requirements for the comprehensive protection systems in the substations of chemical enterprises? Which one is better? Have you used Luneng Intelligence, Nanjing NARI, or Zhuhai Wanlida? How is the performance?
Nanjing NARI and Nanzi are fairly good in the domestic market
I’ll recommend some options with a good cost-performance ratio for you. . Shenzhen CEC-SEL351A
There are many domestic and international brands of substation integrated protection systems, such as Guodian NARI, NARI, Sifang, etc., as well as foreign brands like Schneider, ABB, and Siemens. Nanjing NARI products work fine; I’ve used Vanward products before – they were average. I’m not sure if there have been any technical improvements in their products now. It’s recommended to use reputable relay protection manufacturers, as they can ensure better technical support, quality, and after-sales service.
Based on my nearly 10 years of experience in the insurance industry, I feel that competition in this field is extremely fierce, with the principle of survival of the fittest taking effect very quickly – almost half of the brands will be gone in 3 to 5 years. As for those so-called major brands and companies, they suffer from severe talent loss, which leads to a sharp decline in profits; their product quality and after-sales service are also far inferior to what they used to be! So my advice is that, if budget permits, it’s better to choose well-known imported brands!
I have used both NARI and Zhuhai Walden; the former seems to be more reliable.
We are using Nanjing NARI’s substation integrated automation system and the RCS-9700 series of protection devices, and they perform well; the quality is excellent.