Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: fiaz1404
  • Content: Threads
  • Order by date
  1. fiaz1404

    fault 7583 on Abb drive ACS-880

    There is a fault 7583 on Abb drive ACS-880. Aux code of fault is 0000 2E0B.DC fuses have been checked according to recommendation of manual, Fuses are OK. What are other possible causes of this fault. Fault description is attached
  2. fiaz1404

    variation in speed and amperes of Siemens perfect harmony drive

    We have ID fan equipped with 2000kw, 207 amp motor which is controlled by Siemens perfect harmony drive. Normal operational current is 110 amps and speed is 810rpm. We are facing a problem that drive amperes and speed suddenly start to vary from 75 amps to 160amps while speed varies between 800...
  3. fiaz1404

    Over current tripping on ABB ACS850 frequency drives

    Three ABB ACS850 drives installed in our facility for different applications started to trip with over current(different occasions). After ruling out the possibilities of over current due to load issues, defective motor and cables, we found that value of measuring parameter 01.07(DC-voltage) is...
  4. fiaz1404

    Oscillating current in 6300KW wound rotor motor for ball mill

    We have 6300KW, 13800V, 1194 rpm Slip ring SIEMENS MOTOR used for cement grinding ball mill. Recently while mill was in operation we noticed that current started to oscillate from 280 Amp to 320 Amp. We also observed the voltage oscillation ranging from 13.6 KV & 14 KV. Current is absolutely...
  5. fiaz1404

    bearing damage of 3500kw motor

    Hello, We have 3500kw motor, NDE bearing#NU1048. Today motor NDE bearing was lubricated with approximately 40 grams grease. Type of grease was as per motor manufacturer recommendation. After twenty minutes of greasing, smoke was observed from bearing and motor was stopped immediately. We...
  6. fiaz1404

    increasing the V/F ratio

    Dear experts, We have ID fan for cement plant operation, designed for 1070 rpm and required power is 1593 kw(data is taken from fan name plate).Calculated torque requirement for this fan is approximately 14280 NM . This fan is driven by 6.6kv, 60 Hz, 1600kw, 164amp and 1196 rpm motor...
  7. fiaz1404

    broken edges of carbon brushes

    we have four 3300kw, 13.8kv siemens slipring motors in a cement plant, in previous maintenance shutt down one motor was dismantled due to low stator resistance. we take out rotor from stator for stator cleaning, after cleaning motor was assembled and put the motor in service. after 15 days we...

Part and Inventory Search