Guys
picture the scene!
Two sockets side by side, one on a essential circuit one on non essential.
under normal conditions loss of mains the generator picks up the essential load only. Ahhhh , but what if we load test the building with both the set and mains, do we have to syncronise the...
Guys
i have had a search on this subject and found some useful stuff, however i need to provide the pros and cons for the following:
4 No. (2MV) LV sets stepped up to 11kv - site load 6MV (LV)N=1
X number of HV sets fed directly onto the MV ring.
and LV embedded generation.
all sets to run in...
i have been asked to carry out a THD calculation upon a 450 kVA 3 phase input rectifier load.i would be grateful if any one can point me in the direction of obtaining the relevant info. to carry out the necessary calculations.
i am aware that i would need to carry out a background harmonic...
Guys!!!!
i need to undertake a apprasil or suggest options for LV distribution within a hospital.
i need to provide the Trust with a list of advantages and dis advantages basically for different types of options.
My intentions or options will be catorigised as follows..
Types of Trannies...
i wonder whether someone can provide information regarding IEE BS 7671 wiring regs,a colleage has told me that when they undertook a trunking layout, they use 3 compartment to alleviate high grouping factors, furthermore that each compartment will contain only one phase, i do have an opinion on...
To all
i have a situiation within a REC switchroom ,housing HV/LV equipment.The REC has requested2 No. earth pockets (normal)However,the main contractor has tried to install 2 No.Sealed earth electrode unsuccessfully.They have asked whether or not they could use the rebars as the earth path and...
Good afternoon chaps
i have been asked to look into the 2 different methods of drive control for escalators, that being tradiontal methods and a VVSD( voltage Variable Speed Drive) which i believe consists of a frequency regulator. I have been tasked with assessing whether or not it justiifes...
Ok this would be my first time ,so be gently with me.
i am trying to obtain the low down on generator sets and the synchronising of such plant with the mains.i am currently about to underake a desgin on a hospital that currently has an 1 year old 1000 kVa set.We are to extend this and provide...
