What is meant by transformer, why it should be used, with
out that equipment what happens if we transformed the
supply?
- 12 Answers
- 22548 Views
- Bhel, I also Faced
- E-Mail Answers
Answer Posted / krishna
A transformer is used to increase or decrease the voltage
level.The types of transformers are
1.step up
2.step down
3.centre tapped
| Is This Answer Correct ? | 42 Yes | 11 No |
Post New Answer View All Answers
how line turns ratio changes in 3 phase with change in connection
What is the high series capacitance winding on high voltage power transformer ?
How can claculate to attain the desired PF in the line ( HOW Much KVAR is required ) Pls Give the formula? Equate Petrochemical 0 1 how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec. 0 1 What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding? Equate Petrochemical 0 1 What is required of exietation to the alternater. 0 1 why star point of HT motor not earthed? Equate Petrochemical 0 1 Why we are getting low voltage in star connection? Equate Petrochemical 0 2 What's ND relay & it's functions? Equate Petrochemical 0 2 How instantanious short circuit current is calculated? its formula? Equate Petrochemical 0 2 What is servo Motor? What's the advantages of this motor over Induction motor? Equate Petrochemical 0 2 What is core CT & it's function? Equate Petrochemical 0 3 what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY L & T 0 4 What is required of exietation to the alternater. KNB 1 23 what is the design voltage for 6.6KV 2000 KVAR HT capacitor? Consultancy 0 3 Pls explain about vfd control?Where it is used, Give some example? siemens 1 22 Please explain me abt PQ diagaram in the power sector. 0 9
What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning
we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
what is the excess air in furnace
orifice sizing how done, checking & selection
diameter of cable and core is doubled then the value of capacitance is
what is the chiller and working principal
when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil
what is the difference between megger and earth resister ??
Define the term factor of inertia.
WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.
How the capacitance og capacitor volatage transformer is decided?
