Interested to Buy Any Domain ? << Click Here >> for more details...
an off load but energized 11/0.4 KV, 1250 KVA T/F has a
power factor of 0.65(capacitive)..!! why is it so, though
T/F being an inductive device ??
- 4 Answers
- 6033 Views
- I also Faced
- E-Mail Answers
Answer Posted / doss
if its a new transformer please check the test report done by site acceptence tan delta test .its should be the capacitance high ,and dessipation factor also need to check ...
if the result is high means need to check the winding...if the tan@ reading is less than 0.05 the transformer is good condition..so check external..
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
v/f drive basic princeple
plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in
What is the Surge for 1.1 Phase Induction Motor(For Eg.1Hp) 2.3 Phase Induction Motor(For Eg.1Hp) 3.AirConditioner(For Eg 1Ton) 4.Refrigerator(For Eg 180Ltr or 160kW) 5.Induction Cooker 4. Ceiling Fan
Brushes are placed at magnetically neutral axis,when brushes reach that point,the armature conductor gets shorted,but it can be seen that the dc supply is also shorted,wont that get damage? help me plz
Why lose 1 phase voltage in 33kv to 415v stepdown transformer
What is meant by system?
How it can worked plc based electrical system And which type of software using.
what is the synchronous timer ? and it applications.
Why is the air gap between the pole pieces and the armature kept very small?
what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?
A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram
Why the output of OP-AMP is always less than Vcc?
What must be the distance between the Earth pit which are grounded from two different sources. Example: Distance between the earth pit for LV Panel-1 & 2
3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw
what is the string efficiency
