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发表于 2009-2-12 13:38
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5 L7 Q7 O0 f8 {* W0 z, T1 L/ C4 X! Z3,shorted or open coils in motor repair/replace , x% }( \# f! D6 J. w5 }
all defective motor coils- O% E4 ?8 M/ U0 Y
4,high line voltage check and adjust supply voltage
0 b C% c3 v/ s. X/ X2 {& H2 s# K5,stator grounded clear ground;replace stator; d, x+ [2 d6 n( p2 W. S/ q, Y
6,incorrect field current adjust current to proper level3 c' w5 O, g. Y3 m
7,rotor off-center check bearing wear;, ]5 H7 e; S7 F4 [; \( c2 m
check concentricity of rotor
, Q8 \/ R+ y& Y, O8,rotor in contact with stator check bearing wear;
3 G9 i" z7 ^$ c! ]' N check concentricity of rotor
3 k+ t# h* O) N' G
" e7 ]) j- F; |8 M- p8 L5 dC: incorrect speed 8 N6 N" n. W. S0 i
1,improper frequency check to ensure correct
7 c9 z9 a5 n+ u" w* V frequency;low=slow speed;high=fast speed1 X; t/ a- W! b5 v0 f
6 M3 {7 A/ P4 R0 q) O* Q! G0 g* m7 ^
待续1 X% r' {( v/ T9 W4 ]- F n+ P
6 B* A" o p6 o$ m6 c5 L
[ 本帖最后由 侠客行 于 2009-2-12 13:43 编辑 ] |
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