Podcast
Questions and Answers
What is the primary function of a power transformer in a substation?
What is the primary function of a power transformer in a substation?
To convert high-voltage power to low-voltage power and vice versa.
What is the purpose of a current transformer (CT) in a substation?
What is the purpose of a current transformer (CT) in a substation?
To scale down the high magnitude of current flowing in high-voltage conductors to a level safer to work with.
What is the purpose of a voltage transformer (PT) in a substation?
What is the purpose of a voltage transformer (PT) in a substation?
To scale down very high voltages to levels safer to work with.
What is the primary function of a circuit breaker in a substation?
What is the primary function of a circuit breaker in a substation?
Signup and view all the answers
What is the primary purpose of a disconnect switch in a substation?
What is the primary purpose of a disconnect switch in a substation?
Signup and view all the answers
How do capacitors improve the operating efficiency of electric power systems?
How do capacitors improve the operating efficiency of electric power systems?
Signup and view all the answers
What is the effect of capacitors on system losses in electric power systems?
What is the effect of capacitors on system losses in electric power systems?
Signup and view all the answers
What is the role of capacitors in transmission system voltage stability?
What is the role of capacitors in transmission system voltage stability?
Signup and view all the answers
Why are instrument transformers used in substations?
Why are instrument transformers used in substations?
Signup and view all the answers
Which substation equipment can be used to transfer load from one source to another?
Which substation equipment can be used to transfer load from one source to another?
Signup and view all the answers
Which device is used to scale down high magnitude of current flowing in high-voltage conductors?
Which device is used to scale down high magnitude of current flowing in high-voltage conductors?
Signup and view all the answers
What is the primary purpose of using capacitors in electric power systems?
What is the primary purpose of using capacitors in electric power systems?
Signup and view all the answers
Which device is used to interrupt current flowing in the line, transformer, bus, or other equipment when a problem occurs?
Which device is used to interrupt current flowing in the line, transformer, bus, or other equipment when a problem occurs?
Signup and view all the answers
What is the primary purpose of using disconnect switches in substations?
What is the primary purpose of using disconnect switches in substations?
Signup and view all the answers
Which substation equipment is used to protect the power system from lightning strikes?
Which substation equipment is used to protect the power system from lightning strikes?
Signup and view all the answers
Which device is used to convert high-voltage power to low-voltage power and vice versa?
Which device is used to convert high-voltage power to low-voltage power and vice versa?
Signup and view all the answers
What is the effect of using capacitors on the operating efficiency of electric power systems?
What is the effect of using capacitors on the operating efficiency of electric power systems?
Signup and view all the answers
Which device is used to scale down very high voltages to levels that are safer to work with?
Which device is used to scale down very high voltages to levels that are safer to work with?
Signup and view all the answers
What is the primary purpose of using instrument transformers in substations?
What is the primary purpose of using instrument transformers in substations?
Signup and view all the answers
Study Notes
Substation Equipments
- Power transformers convert high-voltage power to low-voltage power and vice versa, allowing power to flow in both directions.
Instrument Transformers
- Instrument transformers scale down actual power system quantities for metering, protective relaying, and/or system monitoring equipment.
- Current transformers (CTs) scale down high-magnitude currents in high-voltage conductors to a safer level for working.
- Voltage transformers (PTs) scale down very high voltages to safer levels for working.
Circuit Breakers
- Circuit breakers interrupt current flow in lines, transformers, buses, or other equipment when a problem occurs and power needs to be turned off.
Disconnector Switches
- Disconnector switches isolate or de-energize equipment for maintenance purposes.
- Disconnector switches transfer load from one source to another.
Lightning Arresters
- Lightning arresters have the same purposes as disconnect switches.
Capacitor Bank
- Capacitors improve the operating efficiency of electric power systems.
- Capacitors help transmission system voltage stability during disturbances.
- Capacitors cancel out lagging current effects from motors and transformers.
- Capacitors reduce system losses and provide voltage support.
Substation Equipments
- Power transformers convert high-voltage power to low-voltage power and vice versa, allowing power to flow in both directions.
Instrument Transformers
- Instrument transformers scale down actual power system quantities for metering, protective relaying, and/or system monitoring equipment.
- Current transformers (CTs) scale down high-magnitude currents in high-voltage conductors to a safer level for working.
- Voltage transformers (PTs) scale down very high voltages to safer levels for working.
Circuit Breakers
- Circuit breakers interrupt current flow in lines, transformers, buses, or other equipment when a problem occurs and power needs to be turned off.
Disconnector Switches
- Disconnector switches isolate or de-energize equipment for maintenance purposes.
- Disconnector switches transfer load from one source to another.
Lightning Arresters
- Lightning arresters have the same purposes as disconnect switches.
Capacitor Bank
- Capacitors improve the operating efficiency of electric power systems.
- Capacitors help transmission system voltage stability during disturbances.
- Capacitors cancel out lagging current effects from motors and transformers.
- Capacitors reduce system losses and provide voltage support.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Learn about the different types of substation equipments including power transformers, instrument transformers, and switchyard accessories. Understand their functions and applications in substation design.
