If you think you have a good understanding of Electrical Substation, challenge yourself and take our quiz.
Best of Luck.!!
Question 1 of 16
The following statement is true about the electrical substation?
Converts AC voltage from one level to another
Change nature of voltage ( AC to DC or DC to AC)
Both (a) and (b)
None of the above
Question 2 of 16
Switches are required in substation for the following purpose?
For avoiding shutdown of complete substation
Isolate equipment
Transfer load
Control electricity
All of the above
Question 3 of 16
High voltage substation consist of voltage level?
0.24kV - 0.6 kV
2.4kV – 69 kV
115kV - 765 kV
800kV - 1,100 kV
Question 4 of 16
Power coming from different sources are collected at one place and synchronized with grid, is the property of?
Switching substation
Collecting substation
Transformer substation
Converting substation
Question 5 of 16
Substations used to step up or step down the voltage level of an AC power system for power distribution are commonly termed as?
Question 6 of 16
Substations used in DC transmission is?
Question 7 of 16
Substations that uses capacitor bank and synchronous condenser to compensate transmission line losses and power factor correction are called?
Power factor correction substations
Question 8 of 16
In a substation, relay is connected?
Directly to the system
At the primary side of current transformer
At the secondary side of current transformer
Question 9 of 16
The size of liquid filled transformer is in the range of?
50 to 250 kVA
250 to 750 kVA
750 to 3750 kVA
750 to 2500 kVA
Question 10 of 16
While sizing transformer (in kVA), the selection should be made on the consideration?
Capable of holding sudden overload
Future expansion
Both (a) & (b)
Question 11 of 16
Air blast circuit breaker are now replaced with?
Vacuum circuit breaker
Oil circuit breaker
SF6 gas circuit breaker
Question 12 of 16
Which circuit breaker is preferable for 22 kV system?
Question 13 of 16
Standard current rating of secondary side of CT is?
1 Ampere
5 Ampere
Question 14 of 16
Arcing horns are used to?
Isolate fault
Interrupt charging or magnetizing current
Detect fault
Question 15 of 16
A relay is a protection device used in substation to?
Sense fault
Isolate the faulty section from the system
Issues a trip signal to breaker in case of fault
Both (a) & (c)
Question 16 of 16
To protect substation from high voltage surges, ______ is used ?
Relays
Circuit breaker
Disconnector
Surge arrester