600VAC Switchboard at 9636kw

3 comments

Rate

jhunsg Participant Join Date: Jul 2010 Posts: 2	600VAC Switchboard at 9636kw 09/28/2010 4:43 AM
	Hello Guys, Just want to ask if there's somebody here has an experience in designing/building a 600VAC switchboard at around 9700kw. We are in conceptual stage in selecting power generation for a barge. The proposal, -The switchboard will be power by 6 sets of diesel generator at 1606kw, 600v, 60Hz, 3ph, 0.8pf each -big loads are SCR drives for DC motors(1600hp x 4 set, 2000hp x 1), input voltage is 600VAC.. other loads are barge auxilliary The rated current on the bus bar will be 11590A, is it feasible the busbars will be very big? our other options is to increase the generating voltage but we need to provide additional sets of step-down transformer to get 600V. Any suggestion guys..
	Register to Reply

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

These comments received enough positive votes to make them "good answers".

mountk2 Power-User Join Date: Jun 2010 Posts: 348 Good Answers: 10	#1 Re: 600VAC Switchboard at 9636kw 09/28/2010 6:50 AM
	Frame size restriction for LV circuit breaker is 6000 Amps. Current Sizing of bus bars is not a big issue but you have to deal with high magnitude short circuit current. My suggestion is to break up the load in two sections to be powered by individual set of generators __________________ Knowledge sharing is a WIN-WIN situation
	Register to Reply Good Answer (Score 2)

TonyS Guru Join Date: Aug 2010 Location: Resting under the Major Oak Posts: 4347 Good Answers: 181	#2 Re: 600VAC Switchboard at 9636kw 09/28/2010 10:54 AM
	I know it's old technology but I think you should be looking at putting current limiting reactors in the main bus. Spilt it in to 3 sections with 2 reactors between them. 2 generators for each section, 2 1600HP motors fed off the 2 outer sections and the 2000HP off the centre. The fault currents would be horrendous without. __________________ The reports of my death are greatly exaggerated.
	Register to Reply Good Answer (Score 2)

jhunsg Participant Join Date: Jul 2010 Posts: 2	#3 In reply to #2 Re: 600VAC Switchboard at 9636kw 09/29/2010 12:39 AM
	thanks guys for the reply, appreciate it. plan to split the switchboard into two and connect it through bus tie(breakers & cables) with fault current limiter.
	Register to Reply

These comments received enough positive votes to make them "good answers".

Copy to Clipboard

jhunsg (1); mountk2 (1); TonyS (1)

You might be interested in: Die Sets, Electronic Loads and Load Banks, Conveyor Rollers

	Got Something to Say?
	Ask a Question Start a Discussion

	Aerospace
	BioMech & BioMed
	Chemical & Material Science
	Civil Engineering
	Communications & Electronics
	Education and Engineering Careers
	Electrical Engineering
	General Discussion
	Instrumentation
	Manufacturing
	Mechanical Engineering
	New Technologies & Research
	Software & Programming
	Sustainable Engineering
	Transportation

	Site Directories
	Forum Directory Blog Directory User Group Directory RSS Feeds CR4 Rules of Conduct CR4 FAQ Site Glossary Who's Online (62 right now) Show Members