LVDT windings are wound on

Multilayer helical windings are commonly used in the transformers as high voltage windings

A

upto 20 kV

B

upto 50 kV

C

upto 80 kV

D

for 110 kV and above

The insulation between windings and grounded core and the insulation between the windings of the same phase is

A

minor insulation

B

major insulation

C

either of the above

D

none of the above

Which of the following can be measured by LVDT?

A

Displacement

B

Velocity

C

Acceleration

D

All of the mentioned

The principle of operation of LVDT is based on the variation of

A

Self inductance

B

Mutual inductance

C

Reluctance

D

Permanence

LVDT is an/a ___________ transducer.

A

Magneto-strict ion

B

Inductive

C

Resistive

D

Eddy current

In a LVDT, the two secondary voltages

A

Are independent of the core position

B

Vary unequally depending on the core position

C

Vary equally depending on the core position

D

Are always in phase quadrature

The application of LVDT is

A

Joint motion

B

Finger movement

C

Limb movement

D

Heart wall motion

Working of linear variable differential transducer (LVDT) is based on the principle of variable

A

Capacitance

B

Resistance

C

Mutual inductance

D

None of these

LVDT used for displacement measurement is a/an __________ transducer.

A

Passive

B

Active

C

Capacitive

D

None of these

When the stator windings are connected in such a fashion that the number of poles are made half, the speed of the rotor of a synchronous motor

A

remains same as the original value

B

decreases to half the original value

C

tends to becomes zero

D

increases to two times the original value

LVDT windings are wound on

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