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Hi We have Firetrace system installed in our electrical panels since 2017. Some piping are starting to crack. All our electrical rooms are clean, air conditioned. Have any one encounter this issue? Any idea what is the lifetime of the Firetrace tubing? Thanks

Hi We have 2 turbo alternator exporting to utility grid. One turbo alternator tripped by reverse power and generator breaker opened. From fault recorder, we do not see a big fault or disturbance on the network. Feedback from Utility: they were switching flow of power to another substation. Any...

Hi We are a power plant. Since construction, lightning rod were installed on the boiler, substation 66 kV, lightning arresters on 66 kV lines and earth cables over 66 kV transmission lines. Over time 2 additional small power plants were constructed. They are not sufficiently protected against...

Hi Does someone has a table showing the acceptable levels of ultrasound when doing this test? Are there any standards for these test e.g. IEC? Thanks

Hi We have a Siemens Scada system, 2 servers, 1 process historian. We intend to renew this part as we are having some issues with 1 server. It was renewed in 2015 and previous system installed in 2007. We have 2 power plants exporting to national grid. We belong to an international group which...

Hi There are Basler 250 on 3 hydro plants. We have 1 spare Basler 200 in our store for another turbo-alternator. Can the hydro plant replace their Basler 250 with Basler 200 in case of breakdown?

Hi We have corrosion on our 2 x 55 MVA outdoor transformers. We are located a few km from the sea. We can only maintain the transfo. during 1-2 week during annual shutdown. Has someone used sacrificial metal to protect power transformers?

Hi Our VSD is faulty. Our spare soft starter is being used on a second plant. We do not have another spare VSD or soft starter The motor is supplied from the following double winding transformer transformer 3.63 MVA 11kV/400V 630 kVA 690V/3MVA Dynyn11 50 Hz Primary 1 11500 2. 11275 3. 11000...

Hi Is there other make of equipment to monitor vibration of turbo-alternator? We have MARK VIe on our 2 turbo alternators and there is already an electronic card in the panel to connect the ADRE. If a person is already familiar with Adre will he be able to interpret the measurements done by the...

Hi We will install a borehole pump 350 m3/h 220 kW supplying water to irrigation ( equipment rated 7 bar) and during drought season or other special cases to a factory ( 13 bar is required because distance is around 2 km and height difference). The pump will be used mainly for irrigation...

Hi We have 2 turbo-alternator- boiler fed by coal and bagasse. For the 2nd time we had a fire in the bagasse tower and this time the damaged caused is more important. The rubber belts on 3 different conveyor belts are located at different level. On the conveyor belts there are sprinklers. The...

Hi Due to a lightning strike near our power plant, our 2 turbines tripped. We had several miniature breakers which tripped in a UPS supplying equipment in our 66 kV station which is in open air. In a panel for controlling breakers in the 66 kV station, 2 miniature breakers also tripped. In an...

Hi We noticed from time to time rapid fluctuations of MW on both our turbo-alternators (45 MW each) which are exporting power on the utility grid. Any idea what may be the cause? Please see attached printscreen on scada. Thanks...

Hi We have 2 power generation plants with 2 import/export Transformers 55MVA 11kV/66kV with on load tap changer. We do not have any spare parts for the time being. We have some corrosion issue as we are near the sea. Do you advise to buy some spare parts or a new transformer? Replace the more...

Hi Suppose an electrical engineer migrates to Canada and he wants to register with the council of engineer in Canada. Is there any consideration given if he is already a registered engineer in his country? If his country forms part of the Commonwealth? Or he should restart the process from zero...

Hi Has someone used the sick LMS111 to measure flow of coal or bagasse on a conveyor belt? Does the sensor work well? Can we input the speed of the belt to the LMS111? We have purchased and installed a Sick LMS511 to measure flow. Up to now it is working satisfactorily. But the price is very...

Hi Has anyone used the following product? Any feedback if the product is effective?https://files.engineering.com/getfile.aspx?folder=67da4afd-828c-4328-96bf-994c81bb4c36&file=Eco_contact_(1).jpg

Hi We have tested the Soft starter 690Vac Siemens 3RW4453-6BC46 to install it on the submersible pump 110 kW. We tested with a motor 5.5 kW . We had attached message. We increased motor size to 15kW, 30 kW but still same message. But we noticed that with bigger motor , the motor runs a bit...

Hi We have individual relays Microener on our 2 alternators 45 MW 11 kV installed 2006. We have 3 such relays which have failed. These relays are obsolete now. We are planning to do a revamping with a new relay. Can you suggest some make, model which are reliable, can be communicated with...

Hi We are installing a new bulkscan Sick LMS511 and BAM100. The bulkscan is correctly reading the flow of coal. However we are not getting the 4-20 mA transmitted to our PLC. Has anyone encountered this issue. Supplier says BAM100 is already factory set. The BAM100 is the analogue signal module...