Question

A balanced three Phase Y-connected load has one phase voltage
VB = 277 _45° V. The phase sequence is RYB. The line to line
voltage VRYis​

Answer 1

${\huge \{\boxed{\mathcal{\purple{ok \: friend}}}}$

PLEASE FOLLOW AND MARK ME AS BRIAINLIEST!!

PLEASE FOLLOW MY TOP FOLLOWING!

I WILL TOO FOLLOW AND GIVE THANKS!

PLEASE THANK THIS TOO!

"Thank you friend!"

(❁´◡`❁)

Answer 2

01․ A 3 – φ delta connected symmetrical load consumes P Watts of power from a balanced supply. If the same load is connected in star to the same supply then what is the power consumption?

P/3.

P.

√3P.

3P.

02․ Condition for a balanced 3 - phase load is that, each phase has the same value of __________________.

impedance.

resistance.

power factor.

all of these.

03․ A 3 wire, 3 - φ supply feeds a load consisting of three equal resistors. By how much is the load reduced if one of the resistors be removed when the load is in star?

25 % of the original load.

50 % of the original load.

33.33 % of the original load.

66.66 % of the original load.

04․ Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system?

RYB.

RBY.

YBR.

BYR.

05․ A balanced three Phase Y-connected load has one phase voltage VB = 277∠45o V. The phase sequence is RYB. The line to line voltage VRY is

480∠45o V.

480∠ - 45o V.

339∠45o V.

339∠- 45o V.

06․ In delta connected circuit when one resistor is open, then power will be

0.

increased by factor of 3.

reduced by the factor of 3.

remain unchanged.

07․ For balanced star load, if unbalanced line current are IR, IY, IB equal to - j10, - j10 and - j20 respectively, the neutral current will be equal to

(8.66 + j5) A.

(8.66 - j5) A.

(-8.66 - j5) A.

(-9.66 + j5) A.

08․ VRN, VYN and VBN are three phase voltage of a balanced three phase system. If VRN = 200∠30o V and VBN = 200∠- 90o V, then phase sequence of the system is

RYB.

RBY.

YRB.

BRY.

09․ Three identical inductors are connected in delta with a 220 V, 50 Hz, 3 - φ, supply. If the phase current is 24 A, then what is the value of each of the inductance?width=300

0.058 H.

0.049 H.

0.029.

None of these.

10․ A balanced 3 - φ star connected load is fed from a 208 V, 3 - φ supply. Each load has resistance of 35 Ω. The total power is

411.3 W.

618 W.

1236 W.

none of these.