hi i am aziz electrical associate engineer. i am faceing problem in acs800 vvvf drive.it is tripping wothout any alarm/fault.i cheaked all parameters and fault function of drive, all are correct as well as communication parameters.but still it is tripping (drive is tripping in running position not in starting)

1 Answers  

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Why are the HV motors are connected in star connection?

5 Answers  

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What’s electric traction?

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A current of 2A flows for 10 hour through a 100 ohm resistor. The energy consumed by the resistor is:(a) 0.5 kWh(b) 4 kWh(c) 2 kWh(d) 0.02 kWh

3 Answers  

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Procedure for conduting vector group test on power transformers.why it is conducted?

6 Answers   Grasim,

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In auto transformer if power transferred inductively and conductively are same, the ratio of output/input voltage is A 1 B 0.7 C 0.5 D none of above

2 Answers   Getco,

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If the maximum demand is 120 KVA in a building, then what is the Current taken according to load given ? Formula for it ?

3 Answers  

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WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?

0 Answers   Schneider,

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We are preparing another project which involves Waste heat recovery from a 1 MW GE Engine. The Engine in particular gives out flue gas at 487Deg C with a flow rate of 5650 kg/hour and this can be cooled to 180 Deg C. This gives a thermal output of ~ 594 KW that is available for input to VAM via heat exchanger / boiler. Additionally 581 KW will be available from engine jacket water (temperature profile 80/ 80 Deg C and a flow rate of 50m3/hr) Our estimation is that 300 TR of cooling is possible with a suitable VAM machine(s). Please advise what is the most suitable arrangement with maximum TR and min Capital expenditure. plz reply me as early as possible

0 Answers  

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When and where resistance earthing is used ? How to calculate the time constant for earth fault

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how can calculate 1kva generator running time in 1 liter keroscene

0 Answers   Kirloskar,

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WHAT IS THE FULL FORM OF ONAN ( TYPE OF COLLING IN TRANSFORMER)

7 Answers  

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