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Worksheetspre finals
Total questions: 111
Worksheet time: 2hrs 36mins
The privilege of someone to pass over land belonging to someone else; A narrow length of land used for the route of a railroad, electric power line, or public road
(a)
A mechanical switching device used for changing the connections in a circuit, or for isolating a circuit or equipment from the source of power
(a)
A device that protects the transformer from internal fault
(a)
The distance between two adjacent poles that support conductors used in the electric system, usually in meters
(a)
A device that closes and interrupts (opens) an electric circuit between separable contacts under both load and fault conditions
(a)
What is the change-out loading of a distribution transformer?
(a)
What is the size of underground cable for main lines?
(a)
What is the lowest kVA rating of Meralco’s Distribution Transformer?
(a)
Highest rating (capacity) for overhead distribution transformer?
(a)
List at least 5 hardware, equipment and devices shown in the figure above
(a)
Name at least 3 offices under Network Planning & Design
(a)
Standard primary conductor for main/feeder line
(a)
In transformers, prefix “W” stands for what primary voltage
(a)
In transformers, suffix “B” stands for what secondary voltage
(a)
What does OSA stand for?
(a)
What does PCA stand for?
(a)
Name at least two PCA types
(a)
Provide 3 Reasons for Adopting UG Distribution/advantage
(a)
Provide 3 Disadvantages of UG system
(a)
Provide 4 UG Equipment’s/Materials used
(a)
(a)
(a)
(a)
(a)
(a)
Mechanical switching device used to change the connection of a circuit or isolate a circuit or equipment from the power source.
Circuit Breaker
Power Transformer
Capacitor Banks
Potential Transformer
Disconnect Switch
A device that transfers electrical energy from one circuit to another through inductively coupled conductors. It is used to covert between high and low voltages
Circuit Breaker
Power Transformer
Capacitor Banks
Potential Transformer
Device installed in substations in order to improve the power factor and voltage regulation. It also supplies kilovars to transmission and distribution system.
Switchgear
Potential Transformer
Surge Arresters
Capacitor Banks
This is combination of electrical devices, fuses and/or circuit breakers used to protect the different distribution facilities.
Switchgear
Potential Transformer
Surge Arresters
Protection Relays
Protective device against transient overvoltage that may cause flashover and serious damage to equipment.
Switchgear
Potential Trasformer
Surge Arresters
Capacitor Banks
This is a kind of tripping where the primary and secondary breaker of a power transformer tripped.
Transformer Differential Tripping
Feeder or Circuit Tripping
Bus Differential Tripping
Capacitor Bank Tripping
The personnel/office that gives clearance before any personnel can work on substation, subtransmission and distribution facility
Substation Office
System Operation/Delta
Power System Protecion
SCADA Office
Enumerate the list of equipment
(a)
List the 4 types of power circuit breakers used in power substations
(a)
List at least five (5) parts of a power transformer
(a)
A microprocessor controlled electronic device which interfaces objects in the physical world to a distributed control system or SCADA system by transmitting telemetry data to the system and/or altering the state of connected objects based on control messages received from the system.
(a)
Temporarily disables control from the Master Station
(a)
T/F: While energized, Meter IED current inputs should not be open while voltage inputs should not be shorted.
(a)
The DNP 3.0 architecture used for Substation RTUs.
(a)
The two main components of integrity poll are (a) .
The two types of communication network currently used in SAS.
(a)
This device enables non-PRP or non-HSR equipment to connect to the SAS communication network.
(a)
It interconnects all bays of the Substation Automation System with the station supervisory level and carries control in sequence such as measurement, interlocking and operations.
(a)
Facilitates conversion of standard or proprietary protocol of one device to the protocol
suitable for the other device or tools to achieve the desired interoperability.
(a)
It is a communication standard developed recently in cooperation with manufacturers and users to create a uniform, future-proof basis for protection, control and automation of substations.
(a)
Meralco absorbs Meralco absorbs around __% of generated power in the entire country.
50
55
52
53
54
The Meralco distribution system is mostly
underground line
looped line
radial line
sectorized line
none of the above
The voltage level of Meralco’s sub-transmission network is mostly
(a)
Paco Delivery point substation belongs to
(a)
Red Alert notice is being given by the System Operator when:
Sector 1
Sector 2
Sector 3
Laguna Sector
Manila Sector
Red Alert notice is being given by the System Operator when:
Contingency reserve is zero
Generation deficiency exist
There is critical loading
Imminent overloading of transmission lines or equipment
all of the above
In Meralco, ILP means
Information Leak Prevention
Inner Line Permit
Independent Labor Party
Interruptible Load Program
Individual Learning Plan
SIPS means
(a)
The allowable deviation in system frequency is
(a)
A power transformer loading is considered normal if less than (a) % of its rating
The Automatic Load Dropping (ALD) instantaneous setting will kick in at (a) Hz
T/F: All Delivery Point substations serving Meralco franchise is owned by National Grid Corporation of the Philippines (NGCP)
(a)
T/F: Meralco absorbs around 70% of the total generated power in Luzon
(a)
T/F: All Meralco’s Sub-Transmission Lines are looped system
(a)
T/F: The system is in Yellow Alert if the contingency reserve is less than the capacity of the largest synchronized generating unit
(a)
T/F: The Tetra Communication System is one of the tools used in system monitoring and control.
(a)
T/F: PSS/E stands for Power System Simulators for Engineers
(a)
T/F: The Operations Planning of SCC handles the real time monitoring and control of Meralco’s electric facilities.
(a)
T/F: MLD stands for Manual Load Device.
(a)
T/F: The ILP is a brainchild of Energy Regulatory Commission (ERC).
(a)
Which among the following pain points can be attributed to data gap?
Ownership of equipment data is unclear
Low asset data quality [both physical asset register (PAR) and fixed asset register (FAR)]
Highly customized & disparate information systems operating on aging mainframe platform
All of the above
Which open standard adapted by ADMS shows how managed elements shall be represented as a set of objects and its relationship?
Common Information Model
PAS 55 Standard
Global ID – CIM Mapping
IEC 61850
What are the major hurdles in unlocking Meralco’s Smart Grid?
(a)
Which of the following data tuning efforts are necessary before we could use advance ADMS applications?
Equipment Parameter Modelling (Conductor, Transformer, Substation, DG, etc.)
Address Load Related Anomalies (Connectivity, Phasing, Load Group Assignment, etc.)
Telemetry Quality Checks (Signal Attributes, Signal Availability, Signal Accuracy, etc.)
All of the above
The spatial system that will enhance design, construction, service application, O&M processes to keep up with the evolving electric distribution process and technology landscape?
EAM
Enterprise GIS
Enterprise Data Warehouse
ADMS
Where do ADMS users generate report like the Daily Interruption Report, ERC Report, Crew Report, etc.?
(a)
Where does GIS data come from?
As-Built Report
As-Found Report
Data Engineering
All of the above
What coordinate system defines the Earth as a two-dimensional coordinate system with angular unit?
(a)
Which among the following is an EAM Asset?
Distribution Transformer
Metering Center
Substation Switchgear
None of the above
Which ADMS record is automatically created whenever a telemetered device from SCADA trips out?
(a)
How is a map data represented in GIS?
(a)
The asset lifecycle meets the work order lifecycle during?
(a)
What is MERALCO’s Corporate Mission?
. To be a world class customer-centric energy services provider managing a resilient and intelligent network
A world-class, customer centric energy service provider managing a resilient, sustainable, and intelligent network by 2025
To provide safe, reliable, and digitally-enabled energy services through strong partnerships, and highly-motivated and competent workforce
To be an agile, innovative and technology-driven organization committed in providing safe, reliable, adequate, and cost-efficient energy services to customers through a digitally-enabled network.
Meralco absorbs Meralco absorbs around __% of generated power in the entire country.
50
55
52
53
54
The Meralco distribution system is mostly
underground line
looped line
radial line
sectorized line
none of the above
The voltage level of Meralco’s sub-transmission network is mostly
(a)
Paco Delivery point substation belongs to
(a)
Red Alert notice is being given by the System Operator when:
Sector 1
Sector 2
Sector 3
Laguna Sector
Manila Sector
Red Alert notice is being given by the System Operator when:
Contingency reserve is zero
Generation deficiency exist
There is critical loading
Imminent overloading of transmission lines or equipment
all of the above
In Meralco, ILP means
Information Leak Prevention
Inner Line Permit
Independent Labor Party
Interruptible Load Program
Individual Learning Plan
SIPS means
(a)
The allowable deviation in system frequency is
(a)
A power transformer loading is considered normal if less than (a) % of its rating
The Automatic Load Dropping (ALD) instantaneous setting will kick in at (a) Hz
T/F: All Delivery Point substations serving Meralco franchise is owned by National Grid Corporation of the Philippines (NGCP)
(a)
T/F: Meralco absorbs around 70% of the total generated power in Luzon
(a)
T/F: All Meralco’s Sub-Transmission Lines are looped system
(a)
T/F: The system is in Yellow Alert if the contingency reserve is less than the capacity of the largest synchronized generating unit
(a)
T/F: The Tetra Communication System is one of the tools used in system monitoring and control.
(a)
T/F: PSS/E stands for Power System Simulators for Engineers
(a)
T/F: The Operations Planning of SCC handles the real time monitoring and control of Meralco’s electric facilities.
(a)
T/F: MLD stands for Manual Load Device.
(a)
T/F: The ILP is a brainchild of Energy Regulatory Commission (ERC).
(a)
Which among the following pain points can be attributed to data gap?
Ownership of equipment data is unclear
Low asset data quality [both physical asset register (PAR) and fixed asset register (FAR)]
Highly customized & disparate information systems operating on aging mainframe platform
All of the above
Which open standard adapted by ADMS shows how managed elements shall be represented as a set of objects and its relationship?
Common Information Model
PAS 55 Standard
Global ID – CIM Mapping
IEC 61850
What are the major hurdles in unlocking Meralco’s Smart Grid?
(a)
Which of the following data tuning efforts are necessary before we could use advance ADMS applications?
Equipment Parameter Modelling (Conductor, Transformer, Substation, DG, etc.)
Address Load Related Anomalies (Connectivity, Phasing, Load Group Assignment, etc.)
Telemetry Quality Checks (Signal Attributes, Signal Availability, Signal Accuracy, etc.)
All of the above
The spatial system that will enhance design, construction, service application, O&M processes to keep up with the evolving electric distribution process and technology landscape?
EAM
Enterprise GIS
Enterprise Data Warehouse
ADMS
Where do ADMS users generate report like the Daily Interruption Report, ERC Report, Crew Report, etc.?
(a)
Where does GIS data come from?
As-Built Report
As-Found Report
Data Engineering
All of the above
What coordinate system defines the Earth as a two-dimensional coordinate system with angular unit?
(a)
Which among the following is an EAM Asset?
Distribution Transformer
Metering Center
Substation Switchgear
None of the above
Which ADMS record is automatically created whenever a telemetered device from SCADA trips out?
(a)
How is a map data represented in GIS?
(a)
The asset lifecycle meets the work order lifecycle during?
(a)
What is MERALCO’s Corporate Mission?
. To be a world class customer-centric energy services provider managing a resilient and intelligent network
A world-class, customer centric energy service provider managing a resilient, sustainable, and intelligent network by 2025
To provide safe, reliable, and digitally-enabled energy services through strong partnerships, and highly-motivated and competent workforce
To be an agile, innovative and technology-driven organization committed in providing safe, reliable, adequate, and cost-efficient energy services to customers through a digitally-enabled network.
