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anyone has idea how much modelling and simulation with ETAP usually cost? complete 'worst case' PQ simulation USING software?

when they say Certificate of UL listing is it equivalent to Type Test Certificate in IEC?

hello what is the difference between the two standard? is it same?

Hello, what is the difference between Detuned Reactor (capacitor banks?) vs Line/Load AC Reactor (drives) thanks

hello Dave it's for a panel enclosure

hello can someone please advise what device is in the red box symbol?https://files.engineering.com/getfile.aspx?folder=bddd9a3f-b0c0-451c-8541-298b62f31bff&file=question1.png

hello, can I ask I am conducting a voltage drop analysis with two medium voltage motors. now my MTR1 is 94.53% voltage drop and the other one is 98.83% can someone please explain that being said why there's such difference

Is there anyone who experience using wye-wye in UPS connection? aparently we have a problem with the ATS function (4P) upon installing a wye-wye configuration isolation transformer

Hello, davidbeach do you have brands which use the two-stack type? Was it ANSI or IEC?

hello, what does two-stack type switchgear means?

Yes apparently they use single core and not multicore for the motor cables

hello, i would like to ask about wiring methodology. i have a motor terminal box, with 2 holes, 2xM63 aparently i am using a single core cable. and by using trefoil cable arrangement, it won't fit in one of the M63 existing hole entry. so our customer inform that use the 2 holes x M63 by doing...

Hello there. Thank you so much for responding to my question. Here's some information. The operation is a Mining Plant. I have Two Motor Feeders rated 250kW with belt to feed the material to the next operation which is the Crushers This Two Motor Feeders 250kW coupled together with a hollow...

Dear All, Can I ask, are there any serious effect or what happens when you frequently ON / OFF a variable speed drive? will something happen to this equipment? Thanks

Hello.oh yeah my apologies. If you are using etap as well. This I show on my photo You can see that some red already in critical and in magenta color are in marginal. I'd like to ask about what we can do to make then braking, making and thermal energy reports that its in critical and...

hello Mike, Can you explain further what you mean

can anyone please help analyze this problem? Thank you

thread237-450461 In reference to the previous closed thread Should the Icu of the Switchgear be equal to the Icu of the Circuit Breaker? or Vice-versa? Thank you

Hello, Can you please help elaborate what it mean for "Diameter over core insulation" I have the following cable information. So which one on the cable information is my diameter over core insulation? Thank you. I just cannot understand what it mean thank you in advance

Hello, I have question regarding protection relay 1. How to select pick-up time IEC for 51 protection relay? Inverse Time Overcurrent Relay. Where they get t=0.06? 2. How to select pick-up time IEC for 50 protection relay? Definite Time Overcurrent Relay. Where they get Operating time for...