# Is there a 220v three phase?

91 views
Is there a 220v three phase?

No,its single phase

## Related questions

387 views

Description : If 1-phase voltage is 220V, why is 3-phase 440V and not 660V ?

Last Answer : Phase voltage =220v /( phase to neutral) Line voltage = 380 v ( phase to phase) Phase angle difference 120° So when two phases reach vmax +ve I.e. (+220v) + (+220v) = 440v that time due ... these event happen very fast. Hence we have 440 v only in three phase motor. √3.phase voltage= 380 v.

83 views

Description : A 220/440 V, 50 Hz, 5 KVA, single phase transformer operates on 220V, 40Hz supply with secondary winding open circuited. Then (A) Both eddy current and hysteresis losses decreases. (B) Both ... same but hysteresis loss increases. (D) Eddy current loss increases but hysteresis loss remains the same.

Last Answer : (A) Both eddy current and hysteresis losses decreases.

641 views

Description : If a 220/440 V, 50 Hz, 5 KVA, single-phase transformer operates on 220V, 40Hz supply with secondary winding open circuited: (A) both the eddy current and the hysteresis losses will decrease ... losses will increase (D) eddy current losses will increase but the hysteresis losses will remain the same

Last Answer : If a 220/440 V, 50 Hz, 5 KVA, single-phase transformer operates on 220V, 40Hz supply with secondary winding open circuited: both the eddy current and the hysteresis losses will decrease

434 views

Description : If the no load voltage of a certain generator is 220V and the rated load voltage is 200V, then the voltage regulation is: a. 1% b. 10% c. 20V d. 9%

Last Answer : If the no load voltage of a certain generator is 220V and the rated load voltage is 200V, then the voltage regulation is: a. 1% b. 10% c. 20V d. 9%

177 views

Description : A dc shunt generator has a speed of 800 rpm when delivering 20 A to the load at the terminal voltage of 220V. If the same machine is run as a motor it takes a line current of 20A from 220V supply. The speed of the ... rpm) will be:  (A) 800 (B) more than 800 (C) less than 800 (D) none of the above

5 views

Description : In three pin plug 6 Amp. 220v AC rating. why earth pin diameter is higher than ohter two pin? what its purpose ?

Last Answer : Because Current flow in the conductor is inversely proportional to the conductor diameter. So if any short circuits occur in the system first high currents bypassed in the Earthling terminal.( R=Pl/a area of the conductor increases resistance value decreases)

43 views

Description : Three bulbs are rating 40W 60W and 100W designed to work on 220V mains. Which bulb will burn most brightly if they are connected in series across 220 V mains? a. 40 W bulb b. 60 W blub c. 100 W blub d. all will burn equally brightly

Last Answer : a. 40 W bulb

0 views

Description : A series LR circuit draws a power of 550W from a 220V- 50Hz source. The power factor of the circuit in 0.8. The current in the circuit lags behind the voltage. Show that a capacitor, of value about $$(\ ... 10^{-2})F,$$ will have to be connected in the circuit to bring its power factor to unity.

0 views

Description : A power station, located at a distance of (3π) km from a town, has to deliver 8.8 of MW of power to the town. The transmission wires are made from a metal of resistivity 2 x 10-8 SI units and have a diameter of 1 cm. ... the power transmitted, equal (nearly) (1) 13 % (2) 8.7 % (3) 6.5 % (4) 4.4 %

0 views

Description : A step down transformer (having windings of negligible resistance) is used to step down the mains voltage of 220V, to22V to operate a device of impedance 220V. Assuming an efficienty of 80%, the current flowing in the primary coil of two transformer is (1) 8 nA (2) 10.25 mA (3) 12.5 mA (4) 14.75 mA

0 views

Description : Can I use this electrical AC cord in Europe where its 220V?

Last Answer : The plugs are a different shape in Europe. If you go to Radio Shack, they will sell you a plug adaptor kit and and a voltage converter.

1 view

Description : What happens if I plug a surge protector into a 220V outlet?

1 view

Description : Will a 220v air conditioner raise my electric bill more than a 110v?

Last Answer : Yes. The 220 volt AC unit pulls more energy then a 110 volt. It basically draws double the power. It needs more elctricity to power it's internal componants.

4 views

Description : What FCN was implemented to avoid reactor trip on 220V-DC failure of PHT and PPP breakers?

Last Answer : The breaker close position supervision relay VAA 21 is changed by VAJC type, contacts position do not change if 220V-DC is lost now.

29 views

Description : When 220V dc shunt alternator generating the voltage at rated value. If direction of rotation is reversed, then alternator will a) Build up its voltage with same polarity b) Build up its voltage with opposite polarity c) No build up of voltage d) None

Last Answer : Ans: No build up of voltage

87 views

Description : A transformer steps down 220V to 40 volts. If the secondary turns are 40 then primary turns will be: a. 20 b. 40 c. 120 d. 220

82 views

Description : Turn ratio of a transformer is 5. If 220 V AC is applied to its primary coil, voltage in the secondary coil will be: a. 44V b. 4.4 V c. 220V d. 1100V