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.
  P# f4 n. ?8 F' O8 B9 s) WIt is a cycle.
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We isolate the network control and use the local start and stop only, the problem remains.
% Y0 U" n& j+ l6 r; vSwap one of the defective buckets with a good one, the new bucket works fine.
2 N  S0 D" H& hThe problem should be inside the bucket.
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When 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.
6 r( e  T, |- g8 p6 f& s% f( SConfirm 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.

7 I, K) \5 }& G" ]$ T7 w, UThe next thing we can think of  is the coil, we took the coil out to have a close look.
. j% N  F  W: w1 D$ PThey  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.
' r& ~0 q. Y$ L: G% l It is getting better  this time, we have 7-8 times of running before it quit working.

) L; ]4 `8 E0 E( h5 e) MThe coil should be the problem, we ordered two of them. But it will take 5-6 weeks for us to get them.

7 f  D& c1 q0 W* ]2 ^4 S6 J( ]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

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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
( }  J' y. s) [  a也想到这一点，不过这是新装的设备。
检查过触点没问题。