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Thanks for the info. Discop,

Morning All, Just would like to thank all for the help in the past. This maybe a silly question, I have mag.curve results for a multiple ratio CT (200/400/600/5)5P20 10VA. The Mag. curve was done on the 600/5 ratio - full tap, knee point voltage =98V On the same class (5P20 10VA), but a...

Good day Gents, Durring the pre-commissioning testing of a 11KV mobile modular (11KV switcgear & associated equipment). Found the Voltage Transformer connected to the 11KV Trf. Circuit Breaker has the middle phase(White phase) earthed reference and the primary side star point floating (no...

Thanks for the info. We have now matched all CT's.

I work for a utility group and had contractors perform Mag. curves on our 110KV post CT's with the following results: CT ratio & Class - 1600/1200/1000/400/1A 1.0M - 10VA ''A''Phase Tap (8.23Ω) ''B'' Phase Tap (8.25Ω) ''C''Phase Tap 3.45Ω X1-X2=240.37V X1-X2=239.57V...

Thanks for the help

Hi hope you can help. I can not find in the AS/NZS 3000 wiring rules, if Two-core and earth flat cable is required to be mechanically protected. The contractors have used this cable between the 415V AC board and 240VAC socket outlets & Sump. I would of thought that this cable would require...