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Thanks jbartos, gsimson and UKpete for your responses. UKpete, I have looked up 60034-1 before I put this question down, but I needed a nod in the right direction. Thanks for your invaluable post, and after another hard look at IEC 34-1, I have demanded for a re-test at its alternative S2...

Hello all, I've come up against a lifeboat manufacturer who doesn't appear to have in-house expertise enough to tell me more about the motor they have installed. It started out simply enough: original motor offered was 37kW S1 (continuous duty according to IEC60034). Our increased lifting load...

Hello E_Power, I think in the first part of your question, both transient reactances should be written like so - xd'- and not xd". Probably a typo. Answering the second part of the question, for SC contribution from the generator, you need to use the saturated direct-axis subtransient...

Hi.. Here's a question that's arisen from jwerthman's reply to this post: What sort of problems do you anticipate on a system using current limiters? I am working on a project looking to install at least 3 current-limiters (possibly ABB Is-limiters) separating 6 off 40MW generators (11kV...

bigamp, I looked at subsea cables ages ago while doing a feasibility study for an interconnector and looked into an existing project with a 105km long cable carrying 40MW of power. The cost of installing the cables alone (rule of thumb - GBP 1 mil per 10km) is enough to put most ppl off! Of...

Hello.. The definitions below gives 1 Gauss as 6.45 lines/in^2, just as JW says, and I've verified by calculation. Hope it helps. Calculation: From Definitions, 1 Max = 1 Line since 1 Gauss = 1 Max/cm^2, Simple conversion(1/cm^2 to 1/in^2) gives: 1 Gauss = 6.45lines/in^2 Definitions...

Hello, I'm going off on a tangent here, but this is w.r.t. what nitro brought up in his reply. Regarding the third harmonic voltage and circulating currents arising from that, what are the typical solutions to alleviate this problem in parallel transformers and generators? Can anyone point me...