Any input on Cutler-Hammer Starter?

td456

Two  cutler –hammer advantage  starters are  doing the same thing:
# G4 A% B1 B7 j0 { 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.
/ M+ S5 r6 ]9 L. n( A" t+ K2 n' yIt 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.
) c" b8 C5 @+ \9 U  oThe problem should be inside the bucket.

When the problem happened, we observed that  the contactor has a pulling action but will not seal.
) h9 j" @. v0 b3 E$ U0 |7 d. L# }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.
1 E$ [9 c6 `; ?* c
; a( y: S- w5 mThe next thing we can think of  is the coil, we took the coil out to have a close look.
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.
It is getting better  this time, we have 7-8 times of running before it quit working.
0 G& m0 m) j8 U3 @. m! X. w, V! I
3 e9 N% K% _* H0 Z0 k8 |The coil should be the problem, we ordered two of them. But it will take 5-6 weeks for us to get them.
, [8 ]- {& Q/ i) ?6 `4 }0 G" {4 y
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

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.
2 u& B, ]0 G6 I2 g2 VSince 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
+ a9 R# K( S( r4 ]7 J0 U也想到这一点，不过这是新装的设备。
检查过触点没问题。