View Full Version : Remote switches.
Hebrew
11-18-2007, 08:48 PM
Does anyone have any of those AB Chance remote switches on their system?I need some feedback on how they are performing and what,if any problems you are having.We are having some problems with ours.
billfoster67
11-19-2007, 06:52 AM
If you need to open go manual. and open with a buttom or the top of the box should have a handle. And if you want to keep it open remove that damn fuse inside and tag it.
Don't let some joker in a control room close it on you while the fat ass is eating a sandwich and can't remember you got a hold on it.
I have messed with a lot of switches. Chance or Hubbell or Ohio Brass have the best products out there.
If you need a good pro on it, a Chance distributor and he'll give you all the info. Chance products are little more lineman friendly... hit their site... and if you have Adobe reader you can get all the directions from Centralia.
Stay safe
about the ones used in sectionalizing schemes that are supposed to talk to each other ? We have em and have had problems with em not workin like they were supposed to. The problems are in the programming for each setup. Also have em on 3 phase reclosures. Not much problems with those when they are set up right for the circuit they are on. Ours have the manual switch but they also have a local/remote switch. Which we move to the local position so the guys in the ops room cant accidently close it back. But they can all be a pain if they aren't programmed right and backup battery aint up. Hell they're computer controlled ! What kind of problems ya having with em ?
Koga
Hebrew
11-19-2007, 01:10 PM
hey, thanks for the replies.For some reason they don't seem to work.they get the command to open and the blades seem to be stuck.when you try to open them locally,electrically(switch in the control box),same thing.If you try to open them manually they open just fine.We video taped the operation and sent it to Chance and they were not much help.My theory is that the configuration of the pole and switch is wrong.We have the switch mounted under the cross arms where the conductor is dead ended,then 4/0 jumpers connect the switch to the line.The people at Chance thought the jumpers were too heavy as we had 250MCM at first.I was thinking,dead end the line a span in either direction and mount the switch at the top of the pole.Make sone jumpers with the uninsulated 250MCM the substation is grounded with and dead end the line below the switch.If you need to do anything to the switch you can always feed around from both sides,isolate the two spans either side of the switch and work.I think to spend so much money on a switch and it is not working properly is shameful.Plus I do not like the idea of tinkering with something like that.How do you have your switch configured?What ,if any,suggestions did the manufacturers give for installation?I was involved in the installation of two and no specifics were given to the crews involved so we did whjat we would have done with any other switch.
BigClive
11-19-2007, 01:28 PM
When they get the signal to open are they actively trying to do so? Is there any clue of mechanical activity at all?
Hebrew
11-20-2007, 01:17 AM
Yes.Clive.they are trying to open.But it seems that the blades are stuck.As I said before,a tech from Chance suggested that the jumpers may be too heavy and was causing a malfunction.Which is why I was saying to change the configuration of the switch ,how it is mounted on the pole.Some work ok,some don't.
otpig2
11-20-2007, 01:32 AM
Hebrew
We had the same problem with a switch mounted under the arm
we changed it so the conductors deadend on the switch and it removed trouble.
we install all our switches with the conductor deadend on the switch now
Had something to do with the moter operation,the arm twisting a little cause it to jam(what engineer came up with) Helped in our case
Hebrew
11-20-2007, 03:29 PM
Thanks,Otpig.That was my suggestion a long time ago with the manual gang operated switches but I am only a lineman.I am not an engineer and our suggestions are the last to be implemented!
Swollen Tongue
11-22-2007, 10:24 PM
Thats about right hebrew. May as well get used to that. Some manager prodigy will make that suggestion later on and get some kind of bonus check for it.
rat1369
12-09-2007, 06:15 AM
have the line on an arm with inline 900A switches. Then they bring 568 jumpers down to the switch. Hung them for about 6 months. Haven't heard of any problems with that configuration.
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