Any input on Cutler-Hammer Starter?

td456

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Two  cutler –hammer advantage  starters are  doing the same thing:
: z3 |, s! T" L  S( e0 d After start 2-3 times, they will quit working, if you toggle the  start and stop buttons on DCS screen  , you will get another 2-3 running before they quit working again.
It is a cycle.

We isolate the network control and use the local start and stop only, the problem remains.
! L- Q% @4 X; T; l6 RSwap one of the defective buckets with a good one, the new bucket works fine.
9 R8 P! q# \! ~. UThe problem should be inside the bucket.
" [' {& D* X) g) h7 ?% E; u
; t- h$ H: S' o- V0 q9 |1 mWhen the problem happened, we observed that  the contactor has a pulling action but will not seal.
Use a terminating screw divers to push in the contactor, it will not seal either.
Confirm with TECH support this should be a problem with the control circuit board inside the advantage starter, we  bought two new control circuit boards and replaced the old ones, the problem is still the same.

. s+ ?) P& o9 g- j7 E- h' PThe next thing we can think of  is the coil, we took the coil out to have a close look.
2 w; |0 n; y+ M- TThey  have a fork to pinch inside the two leads to make connection, it is not a good design at all. We soldered  the connection and tried again.
It is getting better  this time, we have 7-8 times of running before it quit working.

The coil should be the problem, we ordered two of them. But it will take 5-6 weeks for us to get them.

Do you guys have any input on this issue?

侠客行

有时候主接触点太脏，也会造成启动器无法正常工作

贾电工

# Y* H! G# m" Z2 U# l1 [  Q中国人在这里最好说中国话！说英语或想学英语请人到洋人论坛！

homestay

Don't know cutler –hammer advantage  starters very well, but had been worked on AB switch gears for a little while, which has two different coils, one to pull the vacum bottles up which employs larger current, another one uses less current to hold the connection---if the second coil fails, it won't be able to seal the connection.
+ g2 d' z7 K' X5 nSince your cutler -hammer works couple times,  I guess 侠客行 is right, or the sealing connection is just worn out.

td456

2# 侠客行
  j) s1 h0 U: \也想到这一点，不过这是新装的设备。
" V* Q- L9 c. z" }6 p# j检查过触点没问题。