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  • Users: sunilji
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  1. sunilji

    Hermetically Sealed Distribution Transformers

    I am planning to install a corrugated tank, oil filled, hermetically sealed distribution transformer of 11kv/433V, 160 KVA rating. The HV side protection is oil fuse switch and the mounting is outdoor, pad mounted, open to air. HV and LV are to connected by cables. I would like to learn from...
  2. sunilji

    Single core LV cable installation

    Dear All, My problem relates to the method of laying and fixing single core armoured LV cables of 630 sq.mm. cross section in a trench over a distance of 20 meters. The cables are laid from the secondary of the distribution transformer to the LV breaker. All guidelines from cable manufacturers...
  3. sunilji

    I have an application for a diesel

    I have an application for a diesel generator which calls for electric heating as a means of heat treatment on welded joints. The job in question is a large pressure vessel which requires about 75 kW in local heating. The heater elements are ni-chrome wires wound in-situ with suitable glass wool...
  4. sunilji

    Aerial Bunched Conductors

    Dear All, I am planning to run a 22 kV, 3 phase overhead line over a distance of 2 km using aerial bunched conductors ( XLPE insulated ) along with a bare messenger wire. Does anybody have any similar experience to share ? And are there any relevant construction standards on the web I could...
  5. sunilji

    MICC Cable Termination

    Dear All, I need to find out about MICC Cable Termination methods. Has anybody got any practical experience or theoretical reference ? The system is to be used fire alarm wiring of an oil rig. Thanks in advance
  6. sunilji

    Electric Motor Efficiency

    Hi All, I am searching for a modern, portable instrument for testing Efficiency of 3 phase Electric Motors in the range of 1 to 30 hp. I welome replies from anyone with experience or information Regards to All
  7. sunilji

    Medium Voltage XLPE Cables

    Could someone please point me to data sheets on 22 KV XLPE insulated cables. I need to find out about possible deterioration when used overhead (on tray) open to sky & sun. Also, the effect of such a cable on nearby data/control/power cables which are about 1 meter away from the HV cable...
  8. sunilji

    High Voltage Capacitors for Power Factor Improvement

    I need to improve the power factor of a steel induction melting furnace plant from 0.95 to 0.99. The total kW load is 1700 kW ( out of which 1500 kW is the furnace load ). The furnace is fed through a 11kv/550V,1750 KVA Trafo and rest of the auxillary load ( pumps, cranes, lights )is fed through...
  9. sunilji

    Parameters for Transformer Oil

    Hi Again ! I need help with the following query : What are the benchmark values for Transformer Grade oil? I have a testing report ( Dissolved Gas Analysis ) that states the values of Hydrogen,sulphides etc. The lab people insist on a second test to find out the differential values before coming...
  10. sunilji

    Parallel Operation of Distribution Transformers

    I would like to know whether there are any advantages of running Distribution Transformers in parallel ( secondary side ). I have heard of the hazards ( circulating currents ) and precautions to be taken ( matching parameters ) but are there any tangible benefits to be had by paralleling ?
  11. sunilji

    Wheel Mouse Problems

    I recently installed a Logitech wheelmouse. While giving the plot command in ACAD, the mouse ( cursor ) freezes ! I tried a number of times and it always freezes only when I click the Plot command in Acad. During this time, if I operate with the keyboard, the plot is active and I am able to plot...
  12. sunilji

    Synchronizing of Unequally Rated DG Sets

    I need to know if it is possible to run a 180KVA DG set in parallel with a 500KVA DG set ( Synchronizing ). If yes what are the precautions to be taken for safe operation

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