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54494060 you read me right. I wonder is it right to HiPot all conducters of a multi conducter cable at the same time? If it's right I can save time because I am working in a water project that contain many medium voltage multi conducter cables, medium voltage motors and transformers.

mpparent, The cable is new not energized yet. Does the cable age make diffrence. Rizgar

Hello, we have two medium voltage (3.3Kv)cables of size (3/C-185sq mm + 3/C-70 sq mm) feeding same load from a generator that we want to Hipot test them. Is it right to short the three cores (phases A, B and C) and connect it to ground in both ends of first cable and the 3 cores (phases A, B and...

Thanks amps21 and waross for replying. Waross do you mean that leaving the load end float is better. Really there is 9 cables of that size which connecting the switchgear to 10MVA transformer.The switchgear connected to 4 feeders that feeding Medium voltage motor control by Cables of same rated...

Hello, Is there needs to ground medium voltage (3.3Kv) cables of size (3/C-185 sqmm + 3/C-70 sq mm) which connecting switch gear to 10 MVA transformer. The switch gear is feeding 3.3Kv motors through 3.3Kv motor control(circuit breakers and soft starter RVSS). Is it important to ground such...

You are right petamm but the problem such courses are not available in my country and also bank facility is not exit so ican't buy on line books because of that I am tring to get free information from web sites and expert persons if it is possible.

Davidbeach I used google search but I didn't get any thing useful.

Hello, I need information about how jointing and termination of high, medium and low voltage cables. Is there internet sites or free ebooks explaining the procedure of joining and termination such cables? if there is, please give me the internet addresses. Thanks

CDH: I don't have problem with the selecting objects, the grips are shown and after changing any property I hit the Enter key. the problem is with in the properties window, it shows No selection in the object list on the top of the window, however the properties of the selected object appeares...

Hi, When I select an object to change one of its property (e.g. line type or layer) through the Properties Window I see on the top of the window No Selection, however I selected the object before opening the properties window and I enter new values but there is no changes after closing the...

thank you,I browsed the above sites and I got good information but if we assume that we have a building with 4 flates or a factory what type of calculation we must do and which formulas must be used.

Hi, Is there any website or any one can providing a free ebook about lighting design (indoor, outdoor, industrial...etc), I need information and examples about lighting design. Thanks in advance.

Hello, What is the relation between the voltage and frequency. What will happen to a system if the frequency increased or decreased from it's rate frequency 50/60Hz due to any reason. Thanks,

Thank you Cuky 2000 & SidiropulosM for your help.

Hello, Looking for websites that provide information about designing 132Kv Transmission Lines and the towers & conducters (size & type) standards. Thanks in advance.

Can any body suggest me a web site about Designing of Electric Power Transmission Lines. thanks