Any input on Cutler-Hammer Starter?

td456

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Two  cutler –hammer advantage  starters are  doing the same thing:
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.
Swap one of the defective buckets with a good one, the new bucket works fine.
/ I+ c+ l/ w0 u0 GThe problem should be inside the bucket.
5 a8 ?2 u& }1 L0 _: y6 l
When the problem happened, we observed that  the contactor has a pulling action but will not seal.
: b0 H$ f( l  B- \/ j6 b. rUse 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.

* L% R4 }2 X" W4 s  j$ eThe next thing we can think of  is the coil, we took the coil out to have a close look.
, Q; @1 T* k: HThey  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.
+ q4 U8 \9 I3 w9 {; }4 c' V It is getting better  this time, we have 7-8 times of running before it quit working.
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! x, x2 S1 R5 w$ B5 P7 VThe coil should be the problem, we ordered two of them. But it will take 5-6 weeks for us to get them.

" \& X2 Z" ]' N: ]# t! BDo 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

, ~( B, r" P( E% N! p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.
7 G6 v2 u* W/ L. T" I. X& pSince 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
也想到这一点，不过这是新装的设备。
9 x2 B3 ~" W) z: S) H检查过触点没问题。