Good Morning,
I am working of a 50 MW PV Plant earthing design. PV Plant is connected through 30kV MV Cables to the substation, with in total of 3 circuits. The substation voltage level is 30/220kV and this substation is located 7 km away from PV Plant, this is , that MV evacuation is around...
Hi all,
I am trying to import a Load Curve in Excel format to Cymcap in order to perform a cable ampacity simulation. The user guide provides me an example of how the data shall be written, but when creating such excel file with the data, and imoporting to Cymcap, it retrievs me an error ( OLE...
Dear colleagues,
I am reviewing a project *.OTI which was saved with ETAP 19 Version. In my office, I have ETAP 18 Version. I get an error when opening the file. Anyone could help me to find out what is wrong? Attached is a screenshot of the error. How could I solve it?
Thank you very much in...
Hello All,
I have to calculate the Short circuit rating of a LV Switchgear. ( See pdf attached). The LV Switchgear is fed from two 800kVA transformers running in paralell and each transformer is working at 50% Load. I have made a quick calculation of SC current but I need to know what case...
Good Morning Colleages,
I have been looking through the forum but I have not found anything related.
I am wondering if anyone of you could tell me which is the approximated self power consumption of a MV Switchgear panel (Feeder for static load) of the features: 33kV , 2000 A and 31,5kA...
Good Morning all,
I am working now in a Grid Connected PV Project located in Spain. In the MV Switchgear Arrrangement, it is requested to provide space anti condensation heaters to avoid condensation. Such heaters shall be fed from an auxiliary power supply of 230 Vac or 125 V ac
During...
Dear all,
I have to make a mto for the following cable:
Cu 3Rx4Cx300sq.mm,
Does it applies for 3x(4x300) mm2 Cu Cable?I mean 3 multicore cables of 4 cores each of 300mm2 Cu each core.
Thank you very much in advance.
Dear All,
I know that this question is a beginner's question, but it never came to me, that's why I turn to you.
I would like to know if it is possible to connect two feeders to a secondary of a transformer. Both provide different current, but at the same voltage. I give you a part of the...
Good Morning colleagues,
I write to you because it is a new topic for me and in my work they have asked me about it. I am braimstorming in the idea of which System adds less reactive power. At the Moment, I do not have to muuch data. Only main inbdicators. PV Power plant of study is 300 MW (...
Dear all,
I am electrical Engineer, but I am dealing with a Project in which we Need to use an Electrolyzer unit for H2 Production in Chemical Industry.
The Electrolyzer is 395 V DC and 8500 Amps DC rated.So I came up with the conclusion I Need a rectifier for converting AC to DC because my...
Hi guys, I am working on a project of a PV Power Plant. We have made two designs.
Design A: Power transformer 150/185 MVA, 132/33 kV, YNd1 Price: 1412000 USD
Design B: Power transformer 180/90-90 MVA, 132/33-33 kV, YNd1d1 1220000 USD
Replacing two winding in three winding power transformer...
