Hi.
Where can i find the aprox prices for Surge Arrester to install in MV Switchgear 6-7kV (IEC fo Europe)?, similar to this model:
ABB MDW
ABB product Page:
http://www.abb.com/product/db0003db004279/c125739900636470c125708c0043613c.aspx
ABB product Catalog...
Hi.
There any recommendations or guidelines for knowing when to install the differential protection 87 (87M "motor" or 87S "stator" according to the manufacter) in MV motors, with 1 or 2 set of CT´s for this function, i mean from xxxx KW?
For example from 1500kW? motor up to 1200kW/2000kW?
I...
Hi.
In IEC 62271-200, Indicates that should be make the "internal arc test as a mandatory type test where applicable"... to next have a IAC clasification, normally IAC AFLR.
the question is:
where applicable? or where is not applicable?
The type tests comprise an internal arc test on a...
Hi.
I'm designing a MV switchgear (6kV, 50Hz, 1000Amp) Metal-Clad, the temperature of design that I use are 50 degrees C. (very hot place)
I require transport 1,000 Amp (nominal and real) through incoming. I mean at desing temp 50ºC 1000Amp, maybe my busbar at 40ºC (temp at the IEC standard)...
Hi everyone.
I am investigating to use a system based in Protection for transmission line or or other aplication (Ex. ANSI 21: Distance Protection) based in "Travelling Waves" instead of the usual calculation impedance.
1.- They know some relay, model, manufacturer of such equipment?
2.-...
Hi Forum friends.
Taking advantage of us that many countries and areas on the forum, I ask:
I want to know about future projects to build or assessment related to a generation (some references, web sites, companies, goberment industies in this, etc.).
I know that Panama will be some...
About three-phase induction motors,
1 .- Someone knows exactly mean an "3 phase motor tropicalized"?
2 .- Normal Isolation is the same as tropicalized?
3 .- Is there any standard (IEC, ANSI, IEEE, UNE, etc.) or document that tropicalization this detail?
4 .- What kinds of isolation...
