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Worksheetssubstation
Total questions: 20
Worksheet time: 10mins
What is the primary function of a power substation?
Voltage level transformation and distribution
Consumer billing and collection
Only energy storage and protection
Only metering and data logging
EHV, HV, MV, LV are terms that represent the classification of substations based on what criteria?
Management software based
Voltage level based classification
Geographical region based
Type of ownership based
What does the group of 'Reliability, Safety, Scalability, Maintainability' suggest among the main infrastructure facilities?
Special certificate for research laboratories
Key characteristics that ensure performance and scalability
Document useful only for billing
Unnecessary valor and decoration standards
Why is safety interlocking necessary between the isolator and the earthing switch?
For IoT logging of auto-reclosers
To check the corrosion of busbars
To keep a record of temperature rise
To prevent unexpected energization
What does the primary check in busbar maintenance include?
Joint inspection and corrosion check
Transformer oil dielectric test
Auto-recloser reclosing mechanism inspection
Isolator voltage class measurement
In which applications is the 'hollow bushing type' of insulator used?
In high voltage equipment bushings
In capacitor bank shunting
In overhead line tie points
In battery room ventilation
In earthing systems, what is the ‘solidly grounded’ arrangement known for?
Reducing wave trap loss
Battery discharge control
Capacitor bank harmonic increase
Rapid dissipation of fault current
According to the curriculum shown in the picture, which of the following is included among the main components of a Gas Insulated Substation (GIS)?
Disconnect switch and CT, PT
AC generator and turbine
Solar panel array and inverter
Mechanical gearbox and shaft
What is the general rating shown for the HVDC Substation in the image?
DC voltage up to ±500 kV
Reactive power up to 50 MVAr
AC voltage up to 33 kV
Frequency up to 60 Hz
What is the function of a sectionalizer?
To change the OLT tap
To automate the bus tie switch
To isolate the appropriate section after a fault
To continuously measure fault current
What condition is necessary when transferring feeder load from one feeder to another?
Battery recharge must be complete
Oil temperature must be the same
Voltage level and phase must be synchronized
Two busbars with different frequencies
What does the transformer oil breakdown test measure?
Percentage of dissolved water
Thermal conductivity
Dielectric strength level
Volumetric flow rate
Which mandatory PPE will you choose for the site visit?
Leather jacket, casual shoes
Night vision goggles, cap
High-visibility vest, helmet, shoes
Woolen cap, rain sandals
Which instrument can be used to measure the resistance of a grounding mesh (for a conductor less than 1 Ω)?
Digital capacitance meter 0.1pF–20mF
Low-voltage transformer model 1kVA
Earth resistance tester 0–10Ω 1000V
Digital multimeter 600V 10A 20MΩ
What is the main objective of the group of tasks for drawing the SLD for a 66 kV substation?
Simulate HVDC converter module
Select busbar aluminum grade
Obtain transformer oil testing
Show switchyard and control room layout
Which model is created to check pad-locking and interlocking?
Busbar_joint inspection setup
Capacitor bank for power factor
Bushing and cooling check kit
Isolator locking and testing model
What are the specifications of the low-voltage transformer demo model?
500VA single-phase 110V
3kVA three-phase 415V
2kVA three-phase 400V
1kVA single-phase 220V
અર્થિંગ મેષ બિલ્ડ અને ટેસ્ટ કાર્યમાં ‘માનક’ સામે શું સરખાવવું છે?
<1 Ω રેઝિસ્ટન્સ માપદંડ
>10 Ω ઇમ્પીડન્સ મર્યાદા
<5 mA લીકેજ કરંટ
>95% પાવર ફેક્ટર
What tool is used in HVDC operation in dams?
Magnetic Field for PhET
Efficiency for MATLAB Online
Theory for Khan Academy
Scheduling for ETAP Student
What is the standard maximum voltage displayed by a digital multimeter?
220V single-phase
415V three-phase
1000V DC only
600V AC/DC measurement
