Substations Quiz

Group of electrical equipment used to change characteristic of electric power is known as

• Generating station

• Substation

• Transmission system

• All of above

A good designing or layout a substation should

• Be located at proper site

• Involved minimum initial cost

• Provide safe and reliable arrangement

• All of above

Substations cab be classified according to

• Service requirement

• Constructional features

• Both (a) and (b)

• Neither (a) or (b)

A substations used for voltage level change is known as

• Transformer substation

• Power factor correction substation

• Frequency changer substation

• None of above

Usually distribution substation are

• Underground type

• Indoor type

• Outdoor type

• Any of above

At secondary transmission substation, electrical power is transmitted by

• 3 phase, 3 wire system

• 3 phase, 4 wire system

• 2 phase, 3 wire system

• 2 phase with midpoint earthed system

Power factor correction substations

• Improves the power factor of the system

• Improves the voltage profile of the system

• Reduces the losses in the transmission system

• All of above

A substation which performs the switching operations of power transmission lines is called

• Transformer substation

• Switching substation

• Industrial substation

• Intermediate substation

Capacity of a pole mounted substations is generally up to

• 500 kVA

• 200 kVA

• 400 kVA

• 1000 kVA

The structure of pole mounted substation is

• H - type

• I - type

• A - type

• T - type