IEEE Color Book series
IEEE Color Book series
(OP)
This is a two part question. The first although is not related to the second.
1. Where can I get the IEEE color Book Series ?
and in which of the series is grounding(Residential/Commercial) covered?
2. In my area of Ohio anyway, the utility is doing away with the line fuses(aka, Line-cut outs) for the primary side of the distributiton transformers. I have heard many explanation as to why, such as they can rely on "burn-off" and some (as I think inane economical) such as it is cheaper. I supppose in light of the recent de-regulation, where they now charge for everything from changing a meter seal to reconnection, which used to be a 'gimme', now of course is a service charge.
But back to the line cut-outs, I an wondering is this the direction to go, to me it seems to be all too typical Politics.
WmColt
1. Where can I get the IEEE color Book Series ?
and in which of the series is grounding(Residential/Commercial) covered?
2. In my area of Ohio anyway, the utility is doing away with the line fuses(aka, Line-cut outs) for the primary side of the distributiton transformers. I have heard many explanation as to why, such as they can rely on "burn-off" and some (as I think inane economical) such as it is cheaper. I supppose in light of the recent de-regulation, where they now charge for everything from changing a meter seal to reconnection, which used to be a 'gimme', now of course is a service charge.
But back to the line cut-outs, I an wondering is this the direction to go, to me it seems to be all too typical Politics.
WmColt






RE: IEEE Color Book series
First question…
See http://standards.ieee.org/colorbooks/
and http://shop.ieee.org/ enter ‘color books’ search string
RE: IEEE Color Book series
Are these perhaps Completely Self Protected (CSP) transformers, with integral breakers for transformer protection? Otherwise, sounds like the principle of the TV picture tube self-destructing while protecting the 10 cent fuse.
RE: IEEE Color Book series
To answer the first part of your question the Color Book series can be purchased through the IEEE as Busbar has pointed out and provided the links for. The IEEE Color books series is intended to cover Commericial/Industrial applications. It is well worth owning the entire set if you work in those areas of electrical design. I have the entire set and I think it sells for around $850 which is money well spent since the entire set has 10-11 books I think. The books are very practical and provide a lot of good information at a level that is accessible.
To answer the second part of your question about the elimination of the fuse cuts offs and allowing of "burn off" although maybe not be the most desireable design it does work. I actually was in the field and saw a case where that occured and it worked fine. As you pointed out though economics is also a driving factor sometimes in engineering design. The thing that should be considered is that this isn't one single application, but many throughout the entire system so costs can add up quickly when you consider how many diffrent locations there are.
Your question reminds me of another practice I came across once while doing protective relaying studies for a utility company. They used high speed ground switches on the primary side of substation distribution transformers in order to get operation of upstream protective devices. It worked and was economical, but I also don't know if it was the best design or think there were a lot of utility companies employing the practice. Engineering sometimes is just the best solution of design and economics that still meets the neeeds.
RE: IEEE Color Book series
RE: IEEE Color Book series
Second question…
It seems like various utilities go rounds on adoption of CSP pole-hung distribution transformers with varying success rates and option combinations. A couple of paragraphs on CSP features are: http://www.cooperpower.com/Library/pdf/20110.pdf
RE: IEEE Color Book series
RE: IEEE Color Book series
RE: IEEE Color Book series
http://standards.ieee.org/colorbooks/sampler/sample.html
for samples of color books
http://standards.ieee.org/colorbooks/sampler/Greenbook.pdf
for Green Book
RE: IEEE Color Book series
1. IEEE Std 242-2001 Buff Book
for 5.8.5 Transformer Protection
Also, transformers may be protected on the secondary side only.
The pole transformers are protected internally, e.g.
https://www.kuhlman.com/clientdata/Distribution_Transformers_Web_Catalog.pdf
for: a pole mounted primary protected distribution transformer
or
http://www.abb.com/GLOBAL/ABBZH/ABBZH289.NSF/viewunid/F79E7B2C4A046BFD85256BBC0056B713/$file/SDTDescripBroch.pdf
for: Invisitran mounted in manholes, etc. (ABB Brain Power)
RE: IEEE Color Book series
Since I am a new member I will always strive to live up to this high standard.
Thanks again, everyone
William O. Colt III
RE: IEEE Color Book series
RE: IEEE Color Book series
RE: IEEE Color Book series
1. The c/o is in place at the distribution transformer, high side, and when a new transformer is installed it is a CSP (completely self protected).
2. If these c/o's are on lateral's, perhaps the utility is installed new/more reclosers (1 ph & 3 ph)and they are performing the fuse protection function. The reclosers can be set in various ways with the new microprocessor control/relays to give time for a temporary fault to burn clear. The rule of thumb is that ~80% of distribution faults are temporary - tree limb, squirrel, etc.
wbd