A synchronous motor runs at 600rpm, which of the following case is true?

SSC JE Electrical 2019 with solution SET-1
A synchronous motor runs at 600rpm, which of the following case is true?

P = 10, f = 60 Hz

P = 12, f = 60 Hz

P = 8, f = 50 Hz

P= 12, f = 50 Hz

P = 10, f = 60 Hz

P = 12, f = 60 Hz

P = 8, f = 50 Hz

P= 12, f = 50 Hz

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SSC JE Electrical 2019 with solution SET-1
The below symbol which is used in single line diagrams represents

Power transformer

Potential transformer

Circuit breaker

Current transformer

Power transformer

Potential transformer

Circuit breaker

Current transformer

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SSC JE Electrical 2019 with solution SET-1
In the circuit shown, the pressure coils of two wattmeters are connected to

B

R

Neutral Wire

Y

B

R

Neutral Wire

Y

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SSC JE Electrical 2019 with solution SET-1
Identify the INCORRECT statement with regards to synchronous motors

The armature winding is placed on the stator

It is a self-starting machine

It is a constant speed motor

The field winding is placed on the rotor

The armature winding is placed on the stator

It is a self-starting machine

It is a constant speed motor

The field winding is placed on the rotor

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SSC JE Electrical 2019 with solution SET-1
The average value of a sinusoidal wave is:

0.637 × maximum value

√2 × maximum value

2 × maximum value

0.5 × maximum value

0.637 × maximum value

√2 × maximum value

2 × maximum value

0.5 × maximum value

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SSC JE Electrical 2019 with solution SET-1
In electric traction, the coefficient of adhesion is represented by

γ

λ

μ

Φ

γ

λ

μ

Φ

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 A synchronous motor runs at 600rpm, which of the following case is true?

SSC JE Electrical 2019 with solution SET-1 The below symbol which is used in single line diagrams represents

SSC JE Electrical 2019 with solution SET-1 In the circuit shown, the pressure coils of two wattmeters are connected to

SSC JE Electrical 2019 with solution SET-1 Identify the INCORRECT statement with regards to synchronous motors

SSC JE Electrical 2019 with solution SET-1 The average value of a sinusoidal wave is:

SSC JE Electrical 2019 with solution SET-1 In electric traction, the coefficient of adhesion is represented by

SSC JE Electrical 2019 with solution SET-1
A synchronous motor runs at 600rpm, which of the following case is true?

SSC JE Electrical 2019 with solution SET-1
The below symbol which is used in single line diagrams represents

SSC JE Electrical 2019 with solution SET-1
In the circuit shown, the pressure coils of two wattmeters are connected to

SSC JE Electrical 2019 with solution SET-1
Identify the INCORRECT statement with regards to synchronous motors

SSC JE Electrical 2019 with solution SET-1
The average value of a sinusoidal wave is:

SSC JE Electrical 2019 with solution SET-1
In electric traction, the coefficient of adhesion is represented by