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After signing up I would suggest typing the words: "westing house transmission distribution reference book" If you type Westinghouse in one word it may take you longer to get the book.

Hven't herd anything bout PA-9 from Megger.

Try this one: Electrical Machines (Hardcover) by M. Kostenko (Author), L. Piotrovsky (Author) --------------------------------------------------------------------------------

If that problem happening to all the cable customers associatted with the same transformer?

I agree with davidbeach and want to ask: You think you may need 240V better than 277V for future single phase loads?

Do you need to do this in order to improve the resistivity of the soil? To add more ground rods?

ok you can try this: Transformers: One Padmount transformer - 50KVA every 4 lot lines feeding 8 houses. Single phase 7620/120-240Volts. For every transformer you need a pad, it could be concrete, fiberglass, etc. Underground wiring: To feed transformers use 1/0 Aluminum Underground 15KV on one...

Dandel: The name bayonet means dual and it comes from the rifle with a knife over the muzzle used in the mid 17th century for close combat.

Well my question is in general: What type of fuse do you use when coordinating with Bay-O-Net type fuse. I understand some people use smu type, others use nx type and so on. The same way for overhead some people like to coordinate with only type "T" and other with type "K", etc,. I just want to...

For medium voltage [13,2KV] underground distribution which type of fuse coordinate better with the Bay-O-Net type? SMU-20 50Amps or NX-50? Let's say I'm 2 to 3 miles away from the sub. Thanks!

There is no capbank around. This plant is 4000ft away from the sub. Tried to install a pa9 power analyzer but something is wrong with it. Have to wait til next week, Thanks!

Hi: I got a call from one of our customers complaining about voltage spikes that are burning electronics and machines. It's a Block plant [CEMEX], we have a 500KVA transformer to feed them at 480/277V. They say voltage goes up to 530V even 580V. They have their own dry type xfmr to feed drives...

Thank you all for your help! Apowereng: I went to check it out this morning and I think our crews have been instructed properly and the primary neutral is floated. Hold6448: I'd like to see that paper but with my limited IEEE membership I don't have access to it. Waross: I did check the RUS...

Hi: I was told that closed Wye-Delta banks are prone to burn-outs on primary faults. Can you explain me why and how to avoid this?. [I'm closing an open wye - open delta bank, 25 and 50 kva, adding a 25 kva to avoid complaints for unbalanced voltages] Thanks!

Jorgy: The reason I asked about “Commercial” losses is because I remember a utility company dealing with the same problem in South America. They came out with a very well planned campaign to stop power thief and have people paying for electricity. There were a lot of people stealing power: 1)...

I'd like to know how much percentage of the 25% are the "commercial" losses. Also what do you mean by commercial? Thanks

Dear Doug: I believe that if you need to pick the right conductor to handle up to 800 Amps, according to table 310.16 there is no single conductor to handle it. Then you got to use at least two single conductors per phase. In your case you want to use either 500MCM [380Amps] or 600MCM...

Hi Luis: I did use what Chris suggested and I think I came closer: Losses=3x[Ip^2Rgivenprimx(3/2) + Is^2Rgivensec(1/2)]*K Losses=3x[25^21.164*(3/2) + 2327^2*0.0005497(1/2)]*1.2 NOTE: I'M ASSUMING 1.2 FOR TEMPERATURE FACTOR Losses=9286W Thanks

Scotty: Thanks for answer this thread. Yes it’s a star topology with two miles long feeders. We have two main loops on 69KV, nine subs. Most of our system is in the city and part of it in the county. We do have enough caps in our 13.2Kv system to keep a decent power factor, but anyway we do...

We are a small/medium size utility company (60000 customers) with some customer with bad power factor(i.e.: 0.6, 0.8). What can we do to fix this other than charge them for KVAR? Thanks in advance for your ideas!