PSEG X-frmrs

[mainline]

Okay on my way to vacation I was engaging in the time honored hobby of looking at the way things are built upstairs. I was in Mt. Laurel NJ. The utility there put all high side connections on with ampacts. They had banks that appeared to use conventional cans hard tapped onto the primary. No cutouts, no LAs. Same with single pots. 2 bushing conventionals no cutout hard tapped. They had a 3 phase electronic recloser hard tapped, no disconnects, no bypasses. Will someone from PSEG tell me if I missed something here is or is this actually standard practice. I may be missing something, but I am asking simply out of curiousity.

[LEAFMAN]

I've heard of that in a couple places, never seen it. Must just like their equipment to burn up??:confused:

[T-Man]

Found this

TYPE: Single-Phase, 50 or 60 Hz

LIQUID TYPE: Mineral Oil or Envirotemp FR3 Fluid

kVA: 5-167

PRIMARY VOLTAGE: 2400-19,920 V

SECONDARY VOLTAGE: 120-600 V



Protected transformers are available with a variety of protection options including a MagneX® Interrupter, a secondary breaker with weak link for secondary fault and overload protection, a primary weak link fuse, current-limiting fusing for high interrupting ratings and limiting fault currents, and internal or external lightning arresters.

Never seen anything like it on our system yet. . .

[loodvig]

I too have seen that in N.J. It must be fun when a can ****s the bed and the whole feeder goes out! What do ya do then? Cut all the cans clear and try em one at a time? AND just how do ya try em?

[markwho]

We recently took over adjacent territory with this setup. Nowadays we put up cutouts with all our cans. We had a radial feed out one day with about 18 cans on it, we used urd fault indicators at several location to help narrow the problem down. We threw it in and it blew, but none of the indicators showed. Between the cutout and the first indicator we had a large urd arrestor that had blown when energized, It never indicated bad until then. They can be a pain for sure. We still have a lot in the system and if we reuse them we install them with a cutout.

[mainline]

We use CSPs at mycompany though we are now phasing into solely conventionals with c/o. These cans i don't think were CSPs. I couldn't see a secondary switch on the can anywhere. The recloser was just as bizzare feed in feed out, no way to by pass it, isolate it, or have a visual opening when grounding. What I didn't mention was that the conductor was tree wire and all of the bare spots were completely covered so you had no way to easily ground. Really strange setup. I wouldn't like to tap up x-frmrs and reclosers by hand, but hey that is just me. It is neat to look at other peoples systems.

[Fiberglass Cowboy]

We are a Lineman unit in the Army Reserves. The Army will be paying for me to fly out to the New England Coast for my drill weekend(Cape Cod), from Kansas City,MO.- not this weekend but the next weekend (beginning of May). This Lineman I speak of works out of the Hoboken,N.J. shop of PSE&G. I will see him then, where I will harass him about the no-fusing & everything-tapped-solid-crap, as I like to harass many of the Linemen I serve with on our reserve weekends together.We also have 1 guy that travels down from Maine as well. I usually only see most of these guys 3-4 times a year, but they are all good ****. Terrific group of guys to serve with. We usually work hard during the day and PARTY hard at night. But I'll try & find out their "theory" behind what they do and why they do it. I too like to check out other systems to get different viewpoints or to learn something new. Anyways....

Later Maine(iac) ;
Eric "Ed" Elder :cool:

[shaun]

We use CSPs at mycompany though we are now phasing into solely conventionals with c/o. These cans i don't think were CSPs. I couldn't see a secondary switch on the can anywhere. The recloser was just as bizzare feed in feed out, no way to by pass it, isolate it, or have a visual opening when grounding. What I didn't mention was that the conductor was tree wire and all of the bare spots were completely covered so you had no way to easily ground. Really strange setup. I wouldn't like to tap up x-frmrs and reclosers by hand, but hey that is just me. It is neat to look at other peoples systems.


Main, I think they sectionalize their circuits there. They have feeder reclosures and tie reclosures. I don't think they ground primary at all in their system.

[mainline]

Feeder and tie reclosers? A recloser is a recloser, it should have some way to isolate it other than cutting primary taps. It was such an odd sight I thought I would throw it out there.

[mx-5]

there's some weird **** out there...:eek:

[shaun]

Feeder and tie reclosers? A recloser is a recloser, it should have some way to isolate it other than cutting primary taps. It was such an odd sight I thought I would throw it out there.
You're right Main, but I guess it works for them. Why do ya need to isolate it?

[tramp67]

You're right Main, but I guess it works for them. Why do ya need to isolate it?

Visual opens for grounding, also a way to isolate it from the system for testing/replacement/maintenance.

[Fiberglass Cowboy]

alot of their transformers are csp. Also he says they use the wedge connectors that will come off if needed. I asked him about troubleshooting lines with the poletop eqiupment wedge-tapped to the line & no fused cutouts, he acted like it wasn't a big deal. Seems like it might take forever to find a bad transformer that knocked out 1 phase of your entire line. :confused: