hi
Just after some fresh ideas on this problem, got 3 of these machine running large freshwater pumps for some reason recently they are going through brushes very quickly, a new set was put in last week 144 brushes, and there already showing signs of major wear, also sparking a fair bit not...
Hi all
I just need someone to confirm im doing this right, i have a simple shunt motor off load not coupled up, 230v DC 8 amps 3000 rpm, 2 leads from the field winding f1 and f2 (500 ohms) btw
2 leads from the brush boxes a1 and a2, brushes bedded in fine, commutator look good, IR readings all...
Hi
Recently rewound and induction generator ( stator and rotor)
with slip rings 4 pole machine, have run it as a motor by shorting out the slip rings, ran ok...
Could anyone advise me on the best way to set this machine up, to see if its generating, how do drive it, how to excite it etc, any...
Can anyone tell me if these two are the same, when flash testing a motor i would usually use twice the nameplate voltage plus 1kv and add 20%, do the same rules apply on a baker surge test?
What could be the possible causes of the following slip ring failure, the middle ring (of 3) has been getting extremely hot and fusing the brushes in thier holders, when this first happened new slip rings were made, and the brushgear was completely overhauled, the stator and rotor test ok
The...
Hi all
Ok here is the problem, i have a small dc motor attatched to a gearbox, i have no nameplate so i will describe it in detail for you,
The field is made up of just 2 coils, connected top to bottom resistance is 1500 ohms, with 2 leads out to the terminal block, there are no interpoles...
Hi all
I have a 3 phase 4 pole winding, 3 leads out 400v its a fan motor, at first glance it looked like a 3 tier winding 4 groups per phase 12 singles 24 slots, top to top connection.
the problem is its actually 8 coils 2 tiers 16 slots 1-4 pitch, it actually looks like a single phase...
