Any input on Cutler-Hammer Starter?

td456

Two  cutler –hammer advantage  starters are  doing the same thing:
9 b  v+ P1 G  y' S1 e3 _& ? 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.

4 t$ w1 j/ N1 Z( MWe isolate the network control and use the local start and stop only, the problem remains.
Swap one of the defective buckets with a good one, the new bucket works fine.
; Q7 Q0 i: v+ I2 y# {$ v- T, s3 oThe problem should be inside the bucket.

( u# Y/ L4 a+ C, \) I, M9 X( KWhen 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.
" C! D2 l: O- A
The next thing we can think of  is the coil, we took the coil out to have a close look.
7 V1 d- H( J$ d% s. ]They  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.
6 |8 L. _# c" |; ?/ w, }7 c 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.
2 a8 j3 E( V5 ?  O/ O8 C+ e
5 f1 R4 l) j/ a! Q- fDo 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

  S3 ]$ [5 y5 [/ j1 Y- k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.
Since 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
  u% w, |8 b" Z- r* f7 J2 O也想到这一点，不过这是新装的设备。
+ K- _( F; L6 i检查过触点没问题。