sathornlover

Construction deal for section of high-speed railway signed TUESDAY, JULY 25, 2023 The joint venture, which comprises Italian-Thai Development and China Railway No. 10 Engineering Group, won the contract for construction project no. 3-1, covering the Kaeng Khoi - Klang Dong and Pang Asoke - Bandai Ma sections. https://www.nationthailand.com/thailand/economy/40029665 A secret Contract for the Renewal of the Rails in Sarajevo with a Chinese Company which has a problematic Past In June 2021, the Government of CS awarded a contract worth 20.4 million euros to a consortium of Chinese companies – “China Shandong International Economic and Technical Cooperation Group” (Shandong) and “China Railway No.10 Engineering Group Co.” (CREC 10). Namely, the last company is a member of the “China Railway Engineering Corporation (CREC)” family. BIRN BiH can now confirm that this Chinese corporation is linked to a series of accidents that resulted in injuries or deaths to workers. https://sarajevotimes.com/a-secret-contract-for-the-renewal-of-the-rails-in-sarajevo-with-a-chinese-company-which-has-a-problematic-past/ Peru Freezes Contracts with Chinese Companies: All the Chinese companies eventually end up being sister [companies] or subsidiaries and have different corporate names. For this project a first bidder was CTCEG, but its parent company Railway No. 10 Construction also participated as a bidder. It did not win, it came in fourth place,” Pérez de Cuéllar told news site Perú 21. “There would be a kind of agreement or in some way a cartel, because they submit bids with different corporate names, but in the end they all end up responding to a parent company, which is the same thing.” https://dialogo-americas.com/articles/peru-freezes-contracts-with-chinese-companies/ Chinese company probes bridge collapse in Kenya 2017-06-29 13:00 GMT+8 A bridge under construction on River Nzioa in western Kenya collapsed on Monday, injuring at least 27 workers, Kenyan media reported. China Railway No.10 Engineering Group Co., Ltd., a company carrying out the construction of the 25-meter-long Sigiri Bridge, has confirmed its collapse and promised to release investigation results as soon as possible. https://news.cgtn.com/news/3d4d6a4e7855444e/share.html

PROTESTS ERUPT AS RAYONG CONSTRUCTION CRANE COLLAPSES By Khaosod English - March 30, 2024... https://www.khaosodenglish.com/news/2024/03/30/protests-erupt-as-rayong-construction-crane-collapses/ RAYONG, Dec 18 (TNA) – A gas tank explosion occurred at a steel factory in Ban Khai district, Rayong province on Wednesday, injuring dozens of workers and trapping several others inside the plant. https://tna.mcot.net/english-news-1462606 The Federation of Thai Industries raises concerns over the potential domination of Thailand’s steel industry by Chinese companies, calls for regulatory action https://www.nationthailand.com/business/economy/40040512 All these incidents go back to the same Chinese steel company and the Thai regulators seem to have a surprising amount of patience with it …

Substandard Steel Worth 50 Million Baht Seized in Rayong https://thainews.prd.go.th/nbtworld/news/view/824146/?bid=1 Investigation into steel standards from Chinese companies in Thailand after finding substandard steel from "Xin Ke Yuan" Company https://www.bbc.com/thai/articles/cj45dyr0jnzo

Very good report, but it would also be interesting to learn more about the Thai construction company involved, Italian-Thai Development Pcl, which was also involved in the Rama II incident just two weeks earlier in which six people were killed! The incident, in which a concrete beam structure collapsed onto the construction site of the Dao Khanong Expressway Bridge and has almost been forgotten in public reporting and perception...

Could this be the usual procedure, except that at some point, emergency services were notified because this case involved a high-pro-file case? All types of deaths in Thai prisons aren't that rare, but they don't receive the same level of attention as in this case...

Friendship with Putin & Kim instead …

Thank you very much, I had checked the page a few times before and always overlooked it, without your help it would never have worked, funnily enough on the Thai language page there is no information on Type 2 only on CCS 2 ...

Thank you again for your hint , which I had completely ignored, although I was aware of the Seal's meager 7kW limitation. I can now add a little anecdote to this: when I informed my PV installer that I would be postponing the planned charger upgrade indefinitely due to the castrated EYD onboard charger, he again came up with the claim that the BYD Seal could supposedly charge 22 KW AC. This time he referred to the statements of the staff at our local BYD showroom. Which unfortunately confirms my already extremely negative impression of these staff, because they are usually constantly conspicuous for their lack of information and extremely nonsensical claims. I have the impression that my PV installer is more inclined to trust the statements of these people. There is no reference to this point on BYD's Thai websites, only the 150 KW DC charging power is advertised. The 2023 catalog also provides no reference to this. really reputable sources for the Thai model 2023. As far as the onboard charger is concerned, I haven't been able to find any so far. In contrast to the Australian model, for example, which was also sold with this 7 KW limitation.

Yes, I am aware of the option and I have already hinted at it slightly in my comments, but it is very interesting to see what else you have written about it. My PV installer suggested that I implement a corresponding Huawei charger as a solution, certainly at a certain price. I then referred to my similarly well-equipped charger. But unfortunately, this great feature doesn't get me out of the annoying BYD single phase limitation either

yes, it works with this charger, and that has tended to be my charging strategy, but so far I have orientated myself according to what the Huawei app has led me to believe...

Also the Seal 2023, thanks for the tip, I had almost feared that too, everything points to that. BYD itself has not commented further, specifically about the onboard charger, at least as far as AC charging is concerned. As far as I remember, all the Thai versions of the car are 7.5 kW and thus significantly devalued, and the fact that BYD gave away the actually really great charger with only a one phase breaker speaks for itself...

I will most likely ask my PV system installer to do this job. If I have understood you correctly, which you have taken so much trouble to explain to me, I think we can now expect the following from this three-phase upgrade of the charger: Firstly, the car will actually be charged predominantly with solar energy, secondly, logically, the previously necessary export imports should then at least be significantly reduced, thirdly, the charging costs should then logically be lower in the most favourable case, at least with this charger, if I adjust it manually or with the help of software with corresponding compatible electricity meters, actually charging almost 100% with solar energy! Fourthly, the discrepancy between the electricity meter from the power grid and the Huawei. electricity meter will decrease considerably. However, I assume that this discrepancy will remain in the one to lower double-digit range if the assumption is correct that the Huawei software at the top level does not correctly represent the actual exports/imports in the event that one phase requires more electricity than the solar system can supply, while at the same time the other two phases or even just one phase exports excess electricity at the same time. However, I think I could live with this outcome. Such an upgrade should: reduce the charging costs where the electricity can be sold to the electricity supplier by at least 50 % and otherwise by at least 66 %, This could mean that the upgrade would pay for itself in between one and a half and seven years ... Unfortunately, I first bought an electric car for which I was given a single-phase device including installation as a free extra. It was only six months later that I decided to have the PV system installed and then another six months later that I received the three-phase ABB as a free extra with my second electric car. From what the Huawei app and also the website on the top level showed me, I stupidly assumed that we would charge both our cars mainly with solar energy. Another six months later, almost a year and a half after the PV system was installed, the electricity provider finally installed the digital electricity meter and the rest is history...

Sorry for that!

Heureka, wow, that's it, now I've finally understood it, thank you very much for the patient, small-scale curve discussion, please forgive me for my clumsiness, lack of solid basic knowledge of electrics, last night when I read this I found it very difficult to accept what you were asking me to do, but after a good night's sleep everything is fine. and I also agree with your assumption that the Huawei software unfortunately omits this necessary import and export,-(

About 21kWh „Est. solar energy 0 kWh (0 %)“ ????? The device does not seem to actually detect the source of the energy although it claims to, cause is not configured with the grid meter, probably not compatible too …

I think you're right. It's definitely worth trying to connect the charger in three-phase mode and checking all the wiring, at least as far as the fuse box. I don't need the 11 KW charging speed. But maybe I'll be lucky and the problem will be solved or at least I can rule out this source of error, However, I am not yet sure who I will be hiring to do this ….

But now I'm very surprised. The third diagram below shows that only at 3:00 in the afternoon until 4:00 in the afternoon electricity was consumed again partly from the power grid, between 8:00 in the morning and 3:00 in the afternoon the electricity was generated exclusively by the sun. dark green indicates that the electricity generated by the sun was consumed and yellow by the power grid. Light green is the electricity that is exported. It was a normal sunny day for this month and the system produced 47kWh on this day, which is normal for this time of year. However, it is often over 50kWh. When the sun goes down, I can use the app to manually set the battery to charge less, so that I usually use 90-100% of the electricity generated by the PV system. the 7 kWh from the grid is the average load that I have even when I am not using the charger

That is correct. The ABB charger is actually operated in single-phase mode, although it can also be operated in 3-phase mode. Does this show the green phase A curve in the diagram?

As I've already emphasised, I'm not in a position to interpret the diagram from a professional point of view, but the conspicuousness of phase A correlates with the charger when it's in operation. Not only that, it even seems to support my suspicion that one phase is only drawing current from the grid and is being looped past the load, in this case the car battery, and inverter and passed straight back into the grid instead! This would also explain the strange coincidence that the sum of the discrepancy between imported and exported current units is relatively equal. As I am unfortunately not a real expert in this field, I am not yet sure whether this extended thesis would even be tenable from an electrophysical point of view....

Unfortunately, I have not made any progress on this matter to date. Visits from PEA and the installation company have not produced any useful findings either. The first electrician who checked the system was convinced that the whole problem had nothing to do with the EV charger. The second electrician, who was actually the main person responsible for installing the whole system and only had time in December, was much more open to my assumption that it must have something to do with the charger, but couldn't find anything else either and was of the opinion that I should be happy with the current situation and the abundant power generation ... The visit from PEA unfortunately took place in my absence with the same negative result and the attempt not to use the charger during my almost 2 month absence failed because my wife was not willing to charge her Ev outside. Today I received a message from the head of the installation company in which he apologized profusely for being so late and told me that they had thought about it again and had now come to the conclusion that it might actually have something to do with the charger. He sent me two screen shots showing the entire course of the day from February 1, 25 of phases a, b and c. It is noticeable that phase a is in the negative range during the time when the charger is in operation. From this it is assumed, and I quote “I think EV charger may mis-install. From the plot, it's power of phase a, b, c character. It seem like one of them used heavily compare with other phase.” To be honest, I myself am not in a position to draw any further conclusions from this. In the hope that I can get some helpful suggestions here, I am uploading the 2 screenshots here again.

or like a certain Austrian who asked the Germans back then to "give me four years"... it's boring as hell. History is full of guys like that, who the mob calls and then can't get rid of so easily!

As was to be expected, there is also an equally large discrepancy in August, this time of ~139 units between the two meter systems: import 424 units vs. 284.6 units and export 1025 units vs 886 units. The charger for the EVs shows ~261 units for this period, which this time does not quite match the export/import discrepancy values when these are added together. 278/261 In the month of July: 188/187 I won't be in Thailand for the next whole month, so only my wife will be charging her car, which she only uses for the commute to work - that's an average of ~100kWh, so the discrepancy between the export/import values should be smaller, if the assumption that this problem is related to the charger is correct. An electrician from the installation company is coming by on Saturday ...

here's a quick update on the payment of the surplus amount, I didn't address the strange meter discrepancy that is now being discussed in this thread: “Apparent discrepancy between metering systems” during our current visit. After our first unsuccessful appearance at PEA, we tried for the second time this week. This time at least we were lucky. Instead of dealing with a clueless representative, this time we were lucky enough to actually get in touch with the employee responsible, who was able to give us more reliable information. But some of this information was even more unpleasant. For example, we were told that in the event of a longer stay abroad, we would have to send an authorized representative who would have to appear every month. When my wife intervened, they at least agreed that this could be discussed in the team, whether this would be possible only every two or three months, although we came with all the necessary documents, the payment process for the first and second electricity bill could now take place, but we would not have received the money until the 16th at the earliest, i.e. ten days later. Which would then require another visit. So of course we asked for the money to be transferred to an account. Of course, we had a copy of the bank book with us, but it turned out that there was only one bank that could be used for this, namely the PEA's house bank Krungthai. So we had no choice but to march off again and reopen a bank account with Krung Thai, of all banks, just for this purpose, which from my memory is one of the worst and I therefore closed it after a short time. We then gave the PEA authority a copy of the requested new bank book for each payment in the afternoon. This had to be handwritten on each one, stating "that the account holder agrees that the amount will be transferred to this account" + signature of course ;-). The transfer itself will then take another week ...

The ABB charger TAC-W22-G5-R-C-0 was a "free" gift from BYD and to my astonishment is one of the better wallboxes, but the v2g/v2h capability is missing from this device, neither in the descriptions nor on the net can I find any reference to it.

I have to add to my three-phase ABB charger that I am not at all sure how it was actually wired, because two years ago the first charger installed was a no-name single-phase charger and this was then integrated into the solar system installation as already described. The single-phase charger was then simply replaced six months ago by the three-phase ABB charger. I have now asked the installation company to send a technician to me next month after the August electricity bill, as this is when the annual inspection should have been carried out anyway. For this helpful and comprehensible answer alone, which even my installation company still owes me, I pity again that I can only give it a single thumbs up. Full agreement but at least a clear symptom to work on now 🙂