Smart Grid Test 1 NLC Practice Test

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• What is the smart grid?
• Line workers should know the rated load capacity of any switch before
• Troubleshooters identify the root cause by which method?
• ________ have always been known for their simple function to open and close
• Which statement best describes how the smart grid communicates?
• SAIFI measures what?
• Non-load break cutout is designed to interrupt current when there is no load on the circuit.
• Is a regulator used as a clearance point?
• Gang-operated switches are designed to interrupt fault current.
• Which set of features best characterizes a protected substation environment?
• In a smart grid, edge computing processes data where it is generated to reduce latency. Which option best describes this concept?
• What practice best supports grid situational awareness by combining data from multiple sources to create a unified view?
• SF6 gas is used in which device type?
• Recloser coordination involves which of the following practices?
• What is FLISR and its main benefit?
• Which device coordinates with an upstream recloser to isolate faults?
• Which term completes the sentence: Uses Internet, fiber, optic, and wireless technology for _________ communication to automatically control the power system?
• Which CIP category includes patch management within its scope?
• Which type of switch allows line workers to open and close all three phases at the same time?
• Which gas is used to fill interrupter chambers to improve insulation and arc-quenching properties?
• Which statement best describes a temporary fault?
• Which device is commonly considered universal across brands for flexibility in connections?
• The Tripsaver electronically interrupts fault current while communicating with other smart equipment and system control. It can also reconnect power when needed.
• The term 'legacy grid' refers to infrastructure that relies primarily on which type of devices to provide quality energy and protection?
• Which term describes a fault that causes lasting damage requiring manual repairs?
• What are the main components of Advanced Metering Infrastructure (AMI)?
• Smart switches can be automated and coordinated with re-closures and other line equipment through ______ system
• A DR aggregator's primary function is to
• What is the main objective of a demand response program?
• Which term describes a switch that interrupts current under load by extinguishing the arc?
• Current limiting fuses may also be installed in series with expulsion fuses.
• In smart grid distribution automation, which of the following best describes the role of GIS?
• When is islanding considered intentional for a microgrid?
• Which device helps keep service on portions of a feeder by isolating faults without interrupting the entire feeder?
• What does THD quantify in power systems?
• Which of the following is a grid service commonly provided by energy storage systems?
• Name three cybersecurity principles essential for smart grids.
• Which device is a reliable, single-face switching device that can carry high voltage and uses a hinge to move the blade into a contact point?
• Which two fuse types are typically recognized?
• What is the way to bypass a regulator?
• Describe the role of IEC 61850 in substation automation.
• How do renewable energy curtailment strategies affect grid operation?
• Fuse disconnects are typically coordinated with upstream equipment such as a reclosure.
• Which term refers to devices specifically designed to indicate faults in the electrical network?
• What is the primary goal of protection coordination in power systems?
• How is a tap changing motor disabled on a regulator?
• Which statement about a dead-break elbow is correct?
• Name three common distribution communication protocols used in smart grids.
• What is the primary function of a reclosure?
• What is Demand Response Measurement and Verification (M&V) and why is it important?
• What is protection coordination and why is it important with DER integration?
• What does dead-break mean in switchgear terminology?
• What is the name for device parts operated by oil moving in a confined space under pressure?
• Which term describes a switch type that interrupts current with minimal arc energy and is used for high-energy switching?
• Fuse disconnects are typically coordinated with upstream reclosure.
• Which option is not a typical element of an incident response plan?
• What is the role of data analytics in grid reliability and efficiency?
• Which description best contrasts frequency-based islanding detection with anti-islanding protection?
• Which statement best describes the communication approach used by the smart grid for automatic control?
• Each step up or down on a regulator changes voltage by how much?
• Which statement about clearance points is true?
• The smart grid can isolate and sectionalize areas of the power grid for what purposes?
• What is a key function of isolating and sectionalizing areas?
• Elbows which are made to open enclose a circuit underload current
• What does a Loadbuster do?
• Which option lists the three key elements of an incident response plan for smart grids?
• Which statement distinguishes a Transmission System Operator (TSO) from a Distribution System Operator (DSO) in smart grids?
• Workers will set the Recloser to ______ operation, so it trips once and stays open
• Which part of the reclosure provides the electrical energy needed to open the reclosure during faults?
• Which CIP category focuses on asset identification and classification of critical cyber assets?
• What is SCADA?
• Abruptly disconnecting normal load current from an energized system
• Underground faults are always _______ faults
• Which statement about hot line tags is true?
• Which fuse uses gas as a medium to extinguish the arc when blown?
• Oil switches are primarily used to switch capacitor banks.
• Which device interrupts load current when the circuit is energized?
• Which device is intended to protect equipment such as transformers and capacitors from faults or overloads?
• SCADA is described as ...
• Which device is designed to connect and disconnect lines and equipment for isolation?
• Smart switches coordinate with reclosures through which system?
• Which term refers to older equipment and infrastructure installed during the last century?
• Recloser coordination involves coordinating which components to isolate faults with minimal outages?
• Which term refers to a load-break device designed to interrupt current using an elbow-shaped insulator?
• Fuses contain an element of copper or silver. Which type of fuse is designed to rapidly limit fault current?
• Not considered an interrupting medium?
• What is Dynamic Line Rating (DLR) and how does it benefit grid operations?
• Which device is used to interrupt current during a fault and may automatically reclose afterward?
• Which system optimizes distribution grid operations including DER coordination and fault management?
• Which elbow is designed to be connected and disconnected only when the line is de-energized?
• Which type of recloser is filled with oil and has an internal current transformer to sense fault current?
• What type of cutout can interrupt load currents?
• Which elbow type is designed to open and enclose a circuit under load current?
• The interrupter chamber is filled with a vacuum or ______ gas.
• Re-closers are used on circuits when locking out all phases at once is required.
• Which of the following best defines a phasor measurement unit (PMU) and its primary purpose in grid monitoring?
• Cutouts, reclosers, and gang operated switches _______ and __________ areas of the system for protection in self healing.
• In smart grid operations, which statement accurately distinguishes probabilistic load forecasting from deterministic load forecasting?
• Which statement best describes grid-edge computing?
• Which handle do you set on a reclosure to set it to no test?
• Dynamic tariff signals influence consumer behavior by?
• Why is accurate time synchronization essential for protection and monitoring?
• Which strategy helps balance feeder loading and address grid constraints?
• How does EV charging management impact grid operations and which strategies mitigate issues?
• Which device uses SF6 gas?
• What is the role of energy management systems (EMS) in generation optimization?
• Anti-islanding protection includes which types?
• Besides latency reduction, which is a key benefit of edge computing in smart grids?
• A line crew visits the reclosure before performing hot work. What is the purpose?
• Cutouts not designed to interrupt load currents, but used to provide reliable overcurrent protection are called?
• What term describes equipment and infrastructure that uses automation and information technology, enabling a two-way flow of electricity and information?
• Differentiate between SCADA, EMS, and DMS in utility operations.
• Between 60 and 90% of faults on most distribution systems are which type?
• What is the primary goal of interoperability testing in smart grid equipment?
• The smart grid can immediately report damage to technicians using control systems like?
• The legacy grid refers to infrastructure that relies primarily on which type of devices to supply energy and protection?
• What is the role of a microgrid controller?
• Which fault indicator type requires a manual reset after a fault?
• What types of fault indicators are there?
• Which term is the correct label for devices that indicate faults in the grid?
• What do fault indicators do?
• Which device is a disconnect used to provide isolation with a solid blade contact?
• Which term refers to a switch assembly that uses an elbow-shaped insulator to provide a break in the circuit while interrupting load current?
• The smart grid is described as which property?
• Which items are universal, meaning they can be used in different brands or cutouts?
• Which statement best describes IEEE 1547's role in DER interconnection and a key requirement?
• What is not a function that you can set on a regulator control?
• Identify a plausible mitigation for barriers to smart grid adoption.
• The primary purpose of a _________ is to connect and disconnect lines and equipment
• Installed on conductors at strategic points in the system, providing a visual and digital queue for troubleshooting and to locate the fault
• True or False: Reclosures are effective on sections of line where temporary faults occur often.
• Reclosers are typically set to trip how many times before locking out?
• Ground wires, connecting electrical device casings to the pole ground or neutral are called what?
• Which device interrupts current when its fuse element melts and is not designed to break under load?
• Oil switches are mainly used for switching
• When operating a gang-operated switch, what must be done immediately after starting operation?
• It is a reliable, single face switching device that can carry high voltage and uses a hinge that allows a line worker to easily open or close the blade into a contact point
• What does a recloser do?
• Which data types require time synchronization to support protection coordination?
• Explain harmonic distortion and its typical sources in a smart grid.
• A synchrophasor is time-synchronized and enables what in grid operation?
• Which statement best describes one of the core objectives of the smart grid?
• In protection terminology, what does it mean when a recloser trips?
• Where are fuses used to protect the main feeder from going offline due to a permanent fault?
• DER hosting capacity planning determines how much DER can be accommodated on a distribution feeder without violating voltage and thermal limits.
• Which of the following is NOT listed as a fault indicator type?
• What is the primary purpose of an outage management system (OMS)?
• Which statement best defines a smart grid and identifies its three core objectives?
• The primary purpose of _______ is to provide protection for faults or overloads and equipment, such as transformers and capacitors
• Which device opens and keeps the line downstream energized while the recloser performs its final close and re-energizes the line for customers upstream?
• Which set of actions is used to improve power factor in a distribution network?
• Which device interrupts fault current and can reconnect power?
• Which control system can the smart grid use to report damage to technicians?
• Which device is used to indicate faults along a distribution line?
• Which entity is primarily responsible for high-voltage transmission networks and bulk power flow across regions?
• The fuse on a pad mount transformer is easily replaceable in the field, but replacing the current limiting fuse, requires the transformer to be brought in for service
• Which statement best describes the goal of interoperability in smart grid equipment?
• SAIDI measures what?
• DER hosting capacity planning aims to determine how much DER can be accommodated without violating voltage and thermal limits.
• Which term denotes a switch that is used to interrupt current under load with arc control, commonly called a load-break switch?
• Elbows can only be connected and disconnected when the line is de-energized.
• True or false: Gang-operated switches are NOT designed to interrupt fault current.
• What is Volt-VAR control in smart inverters and why is it important?
• Which arrangement combines current-limiting features with another fuse type in series?
• What is a voltage sag and what factors cause it in a distribution network?
• Is a regulator a device that is used as a clearance point?
• What distinguishes a protected substation environment from a non-protected one?
• If a recloser is set to one-shot operation and a fault is detected downstream, what happens?
• Which statement best describes NERC CIP standards?
• Where is the typical operating location for most overhead air brake switches?
• During the containment and recovery phase of an incident response plan, what is a key objective?
• How do troubleshooters identify the root cause of problems in the grid?
• Recloser also contain a current transformer to fault current. Which type is described?
• What is IEC 62056 and its relation to metering in the smart grid?
• An abnormal condition on a power line that causes a rapid increase in current is called what?
• In fault containment, what is the main outcome of isolating and sectionalizing areas?
• Can a dead-break elbow interrupt continuous line current?
• Which term describes a non-load-break device equipped with a fuse that interrupts current when the fuse element melts?
• Cutouts are typically coordinated with an upstream________ or breaker so that any temporary fault do not cause the fuse to blow
• To disable the regulator's tap-changing motor, which action should be taken?
• What is the primary role of a padmount switch?
• What is IEEE 2030.5 (SEP2) and how does it support DER communication?
• Which device does not offer a visual opening?
• Which device installed on conductors provides a visual and digital queue for troubleshooting and locating faults?
• Which statement best defines a temporary fault?
• Which term refers to a protection device intended to prevent nuisance trips and coordinate protective actions?
• Which device provides Volt-VAR control and other grid-support functions to aid voltage regulation?
• What is the expected outcome of implementing dynamic line rating in transmission planning?
• Which component is used to sense fault current on lines by the recloser?
• Which device is used for protection and control in a three-phase distribution network, typically featuring hydraulic operation?
• The main function of a _______ switch is to isolate line sections from faults and the energize equipment for maintenance or repair
• Which fault indicator type uses a magnet to return the FI to normal setting?
• What does the N-1 reliability criterion require in smart grid design?
• The color red usually indicates a ________ switch or energized system
• Which of the following is a core component of grid situational awareness?
• What does V2G stand for in the context of EV charging management?
• Which statement best differentiates price-based demand response from incentive-based demand response?
• Why is it important to open and close all three phases at the same time?
• Which statement best reflects N-1 reliability in the context of DER integration?
• DLMS/COSEM is associated with what aspect of smart grids?
• Which device does not provide a visual opening indicator?
• Which expression represents the regulator's step size in volts?
• The color green usually indicates an __________ switch or de energized system
• Reclosures are used to protect what kind of tap lines coming off a three-phase feeder?
• Cutouts are typically coordinated with an upstream device such as a Recloser or breaker so that faults do not blow the fuse.
• Which color indicates an energized state on a switch?
• What device prevents temporary faults from becoming permanent faults in distribution systems?
• What is a sectionalizer?
• Which device is a disconnect switch that uses a solid blade contact?
• Which statement correctly describes IEEE 2030.5 (SEP2) in DER communication?
• What helps control arcs when switching a parallel load or during download brake operation?
• Gang-operated switches are best described as what?
• Which device is used to isolate a section of a feeder while the recloser completes its final closing?
• The smart grid is described as which property?
• Which fuse type is designed to interrupt current by expelling arc products from the fuse?
• Air brake switches must be opened ______ and ______ to avoid unnecessary arcing.
• How is soft-switching different from hard-switching in power electronics for DER integration?
• Is a hot line tag a function of a capacitor?
• Which term best describes older equipment and infrastructure?
• What is a recloser and its function in a distribution system?
• In the protection scheme described, what is the primary purpose of reclosers?
• Which term describes a device used to introduce a time delay in fault-clearing operations?
• Which of the following is NOT a main component of AMI?
• Which switch is designed to be operated by multiple switches in unison to control a bank of poles?
• Which statement best describes a typical benefit of grid-edge computing?