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THE MINISTRY OF
INDUSTRY AND TRADE OF VIETNAM
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THE SOCIALIST
REPUBLIC OF VIETNAM
Independence - Freedom - Happiness
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No.:
22/2017/TT-BCT
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Hanoi, October
23, 2017
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CIRCULAR
PRESCRIBING BLACK
START AND RESTORATION OF NATIONAL ELECTRICAL SYSTEM
Pursuant to the Government’s Decree No.
98/2017/ND-CP dated August 18, 2017 defining the Functions, Tasks, Powers and
Organizational Structure of the Ministry of Industry and Trade of Vietnam;
Pursuant to the Law on Electricity dated
December 03, 2004 and the Law on amendments to the Law on Electricity dated
November 20, 2012;
Pursuant to the Government’s Decree No.
137/2013/ND-CP dated October 21, 2013 providing guidelines for
implementation of the Law on Electricity and the Law on amendments to the Law
on Electricity;
At the request of the General Director of the Electricity Regulatory Authority of Vietnam;
The Minister of Industry and Trade of Vietnam
promulgates a Circular prescribing black start and restoration of the national
electrical system.
Chapter I
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Article 1. Scope
This Circular provides principles and
responsibilities of individuals and entities involved in
the black start that restores the national electrical system
to normal operation in the event of a blackout.
Article 2. Regulated entities
This Circular applies to:
1. National load dispatch entity.
2. Electrical generation
entities.
3. Electrical transmission
entities.
4. Electrical distribution entities.
5. Electrical distribution and
retailing entities.
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7. Operation executives of the
abovementioned entities.
8. Vietnam Electricity (EVN).
9. Other relevant
organizations and individuals.
Article 3. Definitions
For the purposes of this Circular, these terms are
construed as follows:
1. “dispatch body vested with control authority” means a
dispatch body that has the rights to command and dispatch
the electrical system in accordance
with applicable regulations on hierarchical management of dispatch tasks.
2. “national dispatch body”
means the dispatch body vested with the highest authority to command and
dispatch the national electrical system. The National Load
Dispatch Center shall act as the national dispatch body.
3. “regional dispatch body”
means a dispatch body that takes charge of commanding
and dispatching a regional electrical system
and bears the command management of the national dispatch body. Regional dispatch
bodies include Northern load dispatch center, Southern load dispatch center,
and Central load dispatch center.
4. “provincial distribution dispatch body” means a
dispatch body that takes charge of commanding and dispatching the
electrical distribution system of a province or
central-affiliated city, and bears the command management of the relevant
regional dispatch body. Provincial distribution
dispatch bodies include dispatch bodies affiliated to Hanoi City Power
Corporation and Ho Chi Minh City Power Corporation, and
provincial/city power companies affiliated to Power Corporations.
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6. “normal operation” means
the mode of operation of which operation parameters are
maintained within the permissible limits set out in regulations on
electrical transmission systems and regulations on
electrical distribution systems adopted by the Ministry of
Industry and Trade of Vietnam.
7. “dispatching” means
the act of commanding and controlling the generation, transmission and
distribution of electricity in the national electrical system
according to defined procedures, technical regulations and methods of
operation.
8. “dispatcher” means a person who directly takes charge of
commanding and dispatching the electrical system under his/her control
authority, including:
a) National dispatchers;
b) Regional dispatchers;
c) Distribution dispatchers of provinces or
central-affiliated cities (hereinafter referred to as “provincial distribution
dispatchers”);
d) District distribution dispatchers.
9. “national dispatcher” means
a person who directly takes charge of commanding and
dispatching the national electrical system in accordance
with applicable regulations on hierarchical management of dispatch tasks set
out in Procedures for dispatching of national electrical system promulgated by
the Ministry of Industry and Trade of Vietnam.
10. “regional dispatcher” means
a person who directly takes charge of commanding and
dispatching the regional electrical system in accordance with applicable
regulations on hierarchical management of dispatch tasks set out in Procedures
for dispatching of national electrical system promulgated by the Ministry of
Industry and Trade of Vietnam.
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12. “provincial
distribution dispatcher” means a person who directly
takes charge of commanding and dispatching the electrical distribution system
in accordance with applicable regulations on hierarchical management of
dispatch tasks set out in Procedures for dispatching of national electrical
system promulgated by the Ministry of Industry and Trade of Vietnam.
13. “electrical
telecommunication service provider” means an entity that is licensed to
provide telecommunication services and provides communication channel services for
electricity entities to serve their dispatching and operation of electrical
systems.
14. “national load dispatch
entity” means an entity that takes charge of commanding and controlling the
process of generation, transmission and distribution of electricity within the
national electrical system, including:
a) National dispatch body;
b) Regional dispatch bodies.
15. “electrical generation entity” means an electricity entity
that owns one or several power plants connected to the
national electrical system and is licensed to operate in the electrical
generation sector.
16. “electrical
distribution entity” means an electricity entity that is licensed to
distribute and sell electricity, including:
a) Power Corporations;
b) Provincial/city power companies affiliated to
power corporations (hereinafter referred as “provincial power companies”).
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18. “electrical
transmission entity” means an electricity entity that is licensed to
operate in the electrical transmission sector, and is responsible for
management and operation of the national transmission system.
19. “electrical system” means
a system consisting of interconnected generation facilities, electrical grids
and other auxiliary facilities.
20. “regional electrical
system” means an electrical system with a voltage of up to 220 kV and
boundaries determined according to those of Northern, Central and Southern
regions.
21. “eletcrical
distribution system” means an electrical system consisting of the
electrical distribution grid and power plants connected
thereto for supply of electricity for electricity customers.
22. “national electrical
system” means an electrical system that is synchronously controlled on a
nationwide scale.
23. “electrical
transmission system” means an electrical system consisting of an electrical
transmission grid and power plants connected thereto.
24. “black start
capability” means the ability of a power plant to start up at least one of
its generating sets from a whole shutdown and be synchronized to the electrical
grid without receiving the supply from a regional electrical grid.
25. “electrical system
restoration” means a sequence of operations performed to restart equipment
of an electrical system after a blackout.
26. “black start” means
the process of restoring the entire (or parts) of the electrical system from a
total (or partial) shutdown by using black start capable generating sets.
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28. “ off-grid self-consumption power plant” means a power plant that is
designed in a manner that allows some of its generating sets to be
automatically disconnected from the electrical system to supply power to its self-consumption system or support local loading.
29. “off-grid
independent-generation power plant” means a power plant that is
disconnected form the national electrical system but still generates
electricity to meet load demand of a region through the power lines connecting the power plant to the electrical substation of that region.
30. “operation executive” means
a person who directly participates in the control of generation,
transmission and distribution of electricity, and works in shifts, including:
a) Dispatchers of dispatching bodies at all levels;
b) Shift leaders, team leaders, chief watch
officers and deputy chief watch officers of power plants or operation control
centers for clusters of power plants;
c) Shift leaders, chief watch officers and deputy
chief watch officers of electrical substations or operation control centers for
groups of electrical substations;
d) Grid operators.
31. “blackout” means
the disconnection between power plants and/or electrical substations resulting
in the total or partial loss of power to a regional or national electrical
system.
32. “important electrical
equipment” means electricity-consumed equipment which may adversely affect
the national security, cause serious environmental pollution, pose threat to
human life, or cause significant economic loss when the power is lost.
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Chapter II
PRINCIPLES FOR BLACK START AND RESTORATION OF NATIONAL
ELECTRICAL SYSTEM
Article 4. Selection of black start power plants
A power plant that is selected as a black start
power plant of the national electrical system shall be required to meet all of
the following criteria:
1. The power plant is directly
connected to an electrical system of a voltage of at least 220 kV, if it is a
major black start power plant, or of at least 110 kV if it is a standby black
start power plant.
2. It is equipped with an
automatic frequency control system and is capable of maintaining the frequency
within the permissible limits according to regulations on electrical
transmission systems promulgated by the Ministry of Industry and Trade of
Vietnam.
3. It is equipped with an
automatic voltage control system and is capable of maintaining the voltage
within the permissible limits according to regulations on electrical
transmission systems and regulations on electrical distribution systems
promulgated by the Ministry of Industry and Trade of Vietnam.
4. The period for black start
of generating sets does not exceed 10 minutes, in case of a major black start
power plant, or does not exceed 20 minutes, in case of a standby black start
power plant.
Article 5. Location of black start power plant
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2. National load dispatch
entities shall:
a) determine important locations of the national
electrical system at which power plants capable of black start are established;
b) based on the approved national power development
plan, propose the list of power plants to be equipped to have black start
capability in each period;
c) cooperate with electrical transmission
entities, electrical distribution entities, and electrical generation entities in the course of reaching connection agreements in
determining specific black start requirements for each power plant.
3. The Ministry of Industry
and Trade of Vietnam shall make the list of black start power plants available
to the public.
Article 6. Principles for response to blackouts
and restoration of electrical systems
Response to blackout and restoration of an
electrical system must adhere to the following principles:
1. Appropriate measures must
be employed to restore the electrical system in the shortest amount of time.
2. Frequency and voltage must
be maintained within the permissible limits during the process of restoration
of the electrical system, provided that synchronization or loop automation
requirements must be met according to operations procedures for national
electrical system promulgated by the Ministry of Industry and Trade of Vietnam
so as to prevent the recurrence of blackout or damage to electrical equipment
in the course of restoration of the electrical system.
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4. During the process of
response to blackout and restoration of the electrical system, operation
executives shall comply with the provisions of this Circular, technical
regulations and standards of Vietnam, specialized regulations and procedures,
other provisions of relevant laws, and safety standards of electrical equipment
announced by their manufacturers.
Article 7. Principles for black start and
restoration of electrical system
1. Restart generating sets of
the black start power plant of the electricity system to supply power for
self-consumption by the power plant.
2. Restore electrical
substations of the major black or standby start power plant. In case the
electrical system has no black start power plant or off-grid independent-generation
power plant, substations will be restored through power lines connected from
other electrical systems.
3. Shut down electrical lines
connecting the restored substation to surrounding power plants and/or
substations in turn. Restore electrical substations, synchronize generating
sets of the power plant, and synchronize off-grid self-consumption power plants
and off-grid independent-generation power plants. During the restoration of an
electrical substation, the load of the electrical substation will be restored
in a manner that meets frequency and voltage control requirements.
4. Shut down connection lines
and synchronize with other electrical systems, and restore the national
electrical system to normal operation
5. Restore load according to the
capability of the national electrical system and in a manner that the
electricity customers included in the list of critical electricity customers
approved by the provincial People’s Committee will be prioritized over other
electricity customers.
Article 8. Costs of investment and maintenance
of black start system
1. Costs of maintenance of the
availability of the black start system are considered legitimate and valid
expenses of the power plant, and will be determined according to the following
rules:
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b) With regard to power plants providing
quick-start reserve or must-run operation reserve services for ensuring
security of the electrical system: Such costs will be included in the annual
auxiliary service prices of power plants;
c) With regard to power plants that have entered
into power purchase agreements of which prices have been determined: Electrical
generation entities shall calculate annual costs of maintaining the
availability of their black start systems, and carry out negotiation and
conclusion of black start service contracts with EVN.
2. With regard to power plants
that wish to build black start systems after this Circular becomes effective,
in addition to the conclusion of power purchase agreements as prescribed,
electrical generation entities shall carry out negotiation and conclusion of
black start service contracts with EVN, and ensure costs of depreciation and
maintenance of their black start systems.
Chapter III
RESPONSIBILITIES OF ENTITIES PARTICIPATING IN BLACK
START AND RESTORATION OF NATIONAL ELECTRICAL SYSTEM
Article 9. Responsibilities of Vietnam
Electricity
1. Consider giving approval
for the plan for black start and restoration of the national electrical system
which is formulated, updated or revised by the national dispatch body.
2. Submit reports to the
Electricity Regulatory Authority of Vietnam on the annually updated plan for
black start and restoration of the national electrical system when approving
the plan for operation of the national electrical system for the following year
or when it is updated or revised.
3. Submit the list of black
start power plants to the Ministry of Industry and Trade of Vietnam for making
it available to the public.
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5. Calculate and include costs
of maintenance of the black start system in the annual electricity pricing plan
for making payments to black start power plants.
Article 10. Responsibilities of national
dispatch body
1. Command the process of
black start and restoration of the electrical system with a voltage of 500 kV.
2. Formulate the annual plan
for black start and restoration of the national electrical system with a
voltage of at least 220 kV and update or revise the plan in case where there
are major changes in the power source and electrical grid which significantly
affect the plan, and submit them to EVN for approval.
3. Make the list of black
start power plants and add qualified power plants to the list in conformity
with the plan for black start and restoration of the national electrical
system; remove the power plants that have lost the black start capability and
are considered unnecessary from the plan for black start and restoration of the
national electrical system, and submit report on such removal to EVN.
4. Make reports and notify the
blackout of the national electrical system according to procedures for response
to incidents involving the national electrical system and regulations on
electrical transmission systems promulgated by the Ministry of Industry and
Trade of Vietnam.
5. Organize professional
training and refresher courses in black start and restoration of the national
electrical system, and organize drills in black start and restoration of the
national electrical system for national dispatchers at least once a year.
6. Participate in inspection of drills in black start and restoration of regional
electrical systems which are organized for:
a) Regional dispatchers;
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c) Shift leaders or chief watch officers of 500 kV
electrical substations or operation control centers for groups of electrical
substations.
7. Play the leading role in
convening relevant entities to analyze and find out causes of blackouts of the
national electrical system and regional electrical systems and propose
preventive measures.
8. Calculate settings of
protective relays that automatically respond to blackouts of the national
electrical system and regional electrical systems. Calculate settings of
protective relays that serve the automatically black start, self-consumption
off-grid or independent-generation off-grid of power plants under its control
authority.
Article 11. Responsibilities of regional
dispatch bodies
1. Command the control of
frequency and voltage of the whole (or part) of the regional electrical system
which is off-grid the national electrical system.
2. Command the black start and
restoration of the regional electrical system under their control authority.
3. Participate in the
formulation of the plan for black start and restoration of the national
electrical system with a voltage of 220 kV under their control authority.
4. Formulate the plan for
black start and restoration of the regional electrical system with a voltage of
110 kV and submit it to the national dispatch body for approval.
5. Make reports and notify the
blackout of the regional electrical system according to procedures for response
to incidents involving the national electrical system and regulations on
electrical transmission systems promulgated by the Ministry of Industry and
Trade of Vietnam.
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7. Participate in inspection
of drills in black start and restoration of electrical systems for:
a) Provincial distribution dispatchers affiliated
to regional dispatch body;
b) Shift leaders of power plants or clusters of
power plants under their control authority;
c) Shift leaders or chief watch officers of
electrical substations under their watch control authority at electrical
substations or operation control centers of electrical substations.
8. Play the leading role in
convening relevant entities to analyze and find out causes of regional
blackouts of the regional electrical system and propose preventive measures.
9. Calculate settings of protective
relays that are automatically respond to blackouts of the regional electrical
system. Calculate settings of protective relays that serve the automatically
black start, self-consumption off-grid or independent-generation off-grid of
power plants under their control authority.
Article 12. Responsibilities of provincial
distribution dispatch bodies
1. Comply with command and
dispatch orders of regional dispatch bodies to restore the load power of the
electrical distribution systems.
2. Command the restoration of
the electrical distribution system under their control authority.
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4. Formulate the plan for restoration
of the electrical distribution system under their control authority on the
basis of restoration of load according to the capability of the national
electrical system and in a manner that the electricity customers included in
the list of critical electricity customers approved by the provincial People’s
Committee will be prioritized over other electricity customers.
5. Make reports and notify the
blackout of the electrical distribution system according to procedures for
response to incidents involving the national electrical system and regulations
on electrical distribution systems promulgated by the Ministry of Industry and
Trade of Vietnam.
6. Organize professional
training courses in restoration of the electrical systems under their control
authority, and organize drills in restoration of electrical distribution
systems under their control authority for provincial distribution dispatchers
at least once a year.
7. Participate in inspection
of drills in restoration of electrical distribution systems for:
a) District distribution dispatchers in the
province;
b) Shift leaders of power plants or clusters of
power plants under their control authority;
c) Shift leaders or chief watch officers of
electrical substations under their watch control authority at electrical
substations or operation control centers of electrical substations.
8. Play the leading role in
convening relevant entities to analyze and find out causes of blackouts of the
electrical distribution systems and propose preventive measures.
9. Calculate settings of
protective relays that are automatically respond to blackouts of the electrical
distribution systems.
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1. Comply with command and
dispatch orders of provincial dispatch bodies to restore the load power of the
electrical distribution systems.
2. Command the restoration of
the electrical distribution systems under their control authority.
3. Participate in the
formulation of the plan for restoration of relevant electrical distribution
systems with a voltage of 110 kV and of medium voltage.
4. Formulate the plan for
restoration of the electrical distribution systems under their control
authority.
5. Make reports and notify the
blackouts of the electrical distribution systems under their control authority
according to procedures for response to incidents involving the national
electrical system and regulations on electrical distribution systems
promulgated by the Ministry of Industry and Trade of Vietnam.
6. Organize professional
training courses in restoration of the electrical systems under their control
authority, and organize drills in restoration of electrical distribution
systems under their control authority for district distribution dispatchers at
least once a year.
Article 14. Responsibilities of electrical
generation entities owning black start power plants
1. Ensure the availability of
methods and equipment for successful black start.
2. Promptly take actions
against failures of equipment of power plants, and transfer equipment for
putting into operation in the shortest amount of time after the failure.
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4. Implement the procedures
for black start of power plants when a blackout event occurs, and ensure the
availability of shutdown of power lines connecting the power plant with the
national electrical system according to the command and dispatch orders of the
national dispatch body vested with control authority.
5. Participate in the
formulation of the plan for black start and restoration of the national
electrical system or a regional electrical system.
6. Carry out periodical
inspection and maintenance of direct current (DC) systems according to their
own procedures, and ensure that the DC system will not fail in case of power
loss in alternating current (AC) systems.
7. Carry out periodical
inspection, maintenance and trial run of standby diesel power system according
to their own procedures, and ensure that the standby diesel power system is in
good operation to supply power for the AC system in case the generating sets
are incapable of serving black start.
8. Carry out at least a trial
operation of generating sets and major electrical equipment, and relevant
auxiliary systems and equipment to check the black start capability of the
power plant every 03 months.
9. Organize training courses
for operation executives who are required to meet their relevant job position
requirements when participating in the black start process.
10. Organize at least a black
start drill on the scale of the entire power plant every year with the
participation by dispatch bodies vested with control authority, including the
following tasks: arrange operation executives, materials and equipment, and
carry out the drill according to the predetermined scenario from the commanding
stage to the performance of operations to black start the entire power plant.
Article 15. Responsibilities of electrical generation
entities owning off-grid self-consumption power plants
1. Ensure the availability of
methods and equipment for successful self-consumption off-grid.
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3. Promulgate self-consumption
off-grid procedures of the power plant after obtaining approval from the
dispatch body vested with the highest control authority.
4. Implement the procedures
for self-consumption off-grid of the power plant when a blackout event occurs,
and ensure the availability of shutdown of power lines connecting the power
plant with the national electrical system according to the command and dispatch
orders of the national dispatch body vested with control authority.
5. Participate in the
formulation of the plan for black start and restoration of the national
electrical system or a regional electrical system.
6. Carry out periodical
inspection and maintenance of DC systems according to their own procedures, and
ensure that the DC system will not fail in case of power loss in AC systems.
7. Carry out periodical
inspection, maintenance and trial run of standby diesel power system (if
available) according to their own procedures, and ensure that the standby
diesel power system is in good operation to supply power for the AC system in
case of unsuccessful self-consumption off-grid.
8. Carry out at least a trial
operation of generating sets and major electrical equipment, and relevant
auxiliary systems and equipment to check the self-consumption off-grid
capability of the power plant every 03 months.
9. Organize training courses
for operation executives who are required to meet their relevant job position
requirements when participating in the operation of self-consumption off-grid
equipment. Organize at least a self-consumption off-grid drill on the scale of
the entire power plant every year, including the following tasks: arrange
operation executives, materials and equipment, and carry out the drill
according to the predetermined scenario from the commanding stage to the
performance of self-consumption off-grid operations for the entire power plant.
Article 16. Responsibilities of other electrical
generation entities
Electrical generation entities whose power plants
are not selected to perform black start tasks or are not equipped with
self-consumption off-grid system shall perform the following tasks:
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2. Promptly take actions
against failures of equipment of power plants, and transfer equipment for
putting into operation in the shortest amount of time after the failure.
3. Promulgate procedures for
response to loss of power of the entire power plant.
4. Participate in the
formulation of the plan for black start and restoration of the national
electrical system or a regional electrical system.
5. Carry out periodical
inspection and maintenance of DC systems according to their own procedures, and
ensure that the DC system will not fail in case of power loss in AC systems.
6. Carry out periodical
inspection, maintenance and trial run of standby diesel power system (if
available) according to their own procedures, and ensure that the standby
diesel power system is in good operation to supply power for the important
electrical equipment in case of blackouts.
7. Organize training courses
for operation executives who must be qualified to participate in the process of
response to loss of power of the entire power plant. Organize at least a drill
in response to loss of power of the entire power plant every year.
Article 17. Responsibilities of electrical
transmission entities
1. Ensure quality of
electrical transmission services.
2. Promptly take actions
against failures of power lines and electrical substations, and transfer
equipment for putting into operation in the shortest amount of time after the
failure.
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4. Carry out periodical
inspection, maintenance and trial run of standby diesel power system (if
available) according to their own procedures, and ensure that the standby
diesel power system is in good operation to supply power for the important
electrical equipment in case of blackouts.
5. Organize training courses
for operation executives who are required to meet their relevant job position
requirements when participating in the process of response to loss of power of
the entire electrical substation. Organize at least a drill in response to loss
of power of the entire electrical substation every year.
Article 18. Responsibilities of electrical
distribution entities, electrical distribution and retailing entities
1. Promptly take actions
against failures of power lines and electrical substations, and transfer
equipment for putting into operation in the shortest amount of time after the
failure.
2. Carry out periodical
inspection and maintenance of DC systems of electrical stations with a voltage
of 110 kV according to their own procedures, and ensure that the DC system will
not fail in case of power loss in AC systems.
3. Provide lists of critical
electricity consumers approved by provincial People’s Committees for provincial
distribution dispatch bodies.
4. Notify suspension or
reduction in supply of electricity for electricity customers according to
regulations on conditions and procedures for suspension and reduction in power
supply promulgated by the Ministry of Industry and Trade of Vietnam.
5. Participate in inspection
of the transfer switch system that redistributes power from the national
electrical grid to a customer’s backup source of power at the request of
competent authorities.
6. Operate the electrical
distribution system when responding to the blackout and restoring the electrical
distribution system according to procedures for response to incidents involving
the national electrical system and regulations on electrical distribution
systems promulgated by the Ministry of Industry and Trade of Vietnam.
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Article 19. Responsibilities of electrical
telecommunications service providers
1. Ensure uninterrupted,
stable, safe and reliable operation of communication channels serving the
dispatch and operation of electrical systems.
2. Promptly take actions
against problems or anomalies in communication channels serving the dispatch
and operation of electrical systems under their management. Promptly notify
relevant entities of problems that affect or interrupt the flow of communication
in the course of dispatch and operation of electrical systems.
3. Carry out periodical
inspection, maintenance and trial run of standby diesel power system and UPS
according to their own procedures, and ensure that these systems are always in
good operation.
4. Organize training courses
for their operation executives who must be qualified to take actions against
against problems or anomalies in communication channels serving the dispatch
and operation of electrical systems in case of power loss in the national
electrical grid.
Article 20. Responsibilities of entities owning
important electrical equipment
1. Equip transfer switch
systems to redistribute power from the national electrical grid to a backup
source of power in accordance with regulations of law, and ensure that
important electrical equipment will be maintained in normal operation or will
not fail in case of power loss in the national electrical grid.
2. Carry out periodical
inspection, maintenance and trial run of standby diesel power system (if
available) or UPS according to their own procedures, and ensure that these
systems are always in good operation.
3. Organize training courses
for their operation executives who must be qualified to respond to the power
loss in the national electrical grid.
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TASKS OF OPERATION EXECUTIVES
Article 21. Tasks of shift leaders of black
start power plants or operation control centers of power plant clusters
consisting of black start power plants
1. Command the start-up
process of generating sets to supply power for the power plant’s
self-consumption system.
2. Respond to the power loss
of the entire power plant according to the power plant's black start procedures
and procedures for response to incidents involving the national electrical system
promulgated by the Ministry of Industry and Trade of Vietnam.
3. Make necessary preparations
for shutdown of power lines connecting the power plant to the electrical system
according to orders given by a dispatch body vested with control authority.
Article 22. Tasks of shift leaders of off-grid
self-consumption power plants or operation control centers of power plant
clusters consisting of off-grid self-consumption power plants
1. Command the control of
power and voltage of generating sets that supply power for the self-consumption
system of the power plant and support local load (if any).
2. Respond to incidents
according to their internal self-consumption off-grid procedures and procedures
for response to incidents involving the national electrical system promulgated
by the Ministry of Industry and Trade of Vietnam.
3. Make necessary preparations
for synchronization of the power plant to the electrical system according to
orders given by a dispatch body vested with control authority.
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1. Respond to incidents
according to procedures for response to incidents involving the national
electrical system promulgated by the Ministry of Industry and Trade of Vietnam
and independent-generation off-grid procedures (if any); proactively make
adjustments to maintain the frequency and voltage within the permissible limits
set out in regulations on electrical transmission systems and regulations on
electrical distribution systems adopted by the Ministry of Industry and Trade
of Vietnam.
2. Notify superior dispatch
bodies of frequency oscillation and voltage for cooperation. Make necessary
preparations for synchronization of the power plant to the electrical system
according to orders given by a dispatch body vested with control authority.
Article 24. Tasks of operation executives of
power plants, operation control centers of power plant clusters, electrical
substations, and operation control centers of electrical substation groups
Operation executives of power plants (except black
start power plants, off-grid self-consumption power plants, and off-grid
independent-generation power plants), operation control centers of power plant
clusters, electrical substations, or operation control centers of electrical
substation groups shall perform the following tasks:
1. Respond to the power loss
of the entire power plant or electrical substation according to procedures for
response to incidents involving the national electrical system promulgated by
the Ministry of Industry and Trade of Vietnam and the power plant or electrical
substation’s internal incident response procedures.
2. Start up the standby diesel
power system (if available), and enable the self-consumption system to receive
power from the standby diesel power system and deliver power for important
electrical equipment according to their internal procedures.
3. Make necessary preparations
for putting equipment of the power plant or electrical substation into
operation according to orders of their superior operation executives.
Article 25. Tasks of national dispatchers
1. Command the control of
frequency and voltage of the off-grid independent-generation power plant
connected to 500 kV voltage system; command the black start and restoration of
electrical systems with a voltage of 500 kV.
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3. Command the black start and
restoration of the electrical systems under their control authority according
to the approved plans.
4. Cooperate with regional
dispatchers in restoring regional electrical systems or electrical systems
under their control authority from regional electrical systems.
5. Cooperate with relevant
regional dispatchers in restoring connections between regional electrical
systems through 220 kV power lines.
6. Make reports and notify
incidents according to procedures for response to incidents involving the
national electrical system and regulations on electrical transmission systems
promulgated by the Ministry of Industry and Trade of Vietnam.
Article 26. Tasks of regional dispatchers
1. Command the control of
frequency and voltage of the off-grid independent-generation power plant
connected to 220 kV or 110 kV voltage system; command the black start and
restoration of regional electrical systems with a voltage of 220 kV or 110 kV
under their control authority.
2. Command the process of response
to the power loss of the entire power plant or electrical substation under
their control authority according to procedures for response to incidents
involving the national electrical system promulgated by the Ministry of
Industry and Trade of Vietnam.
3. Command the black start and
restoration of regional electrical systems under their control authority
according to the approved plans.
4. Cooperate with national
dispatchers in restoring the national electrical system or regional electrical
systems from the national electrical system. Restore the load power of regional
electrical systems at the request of national dispatchers.
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6. Make reports and notify
incidents according to procedures for response to incidents involving the
national electrical system and regulations on electrical transmission systems
promulgated by the Ministry of Industry and Trade of Vietnam.
Article 27. Tasks of provincial distribution
dispatchers
1. Command the control of
frequency and voltage of off-grid independent-generation power plants connected
to a voltage of up to 35 kV; command the restoration of electrical distribution
systems under their control authority according to the approved plans.
2. Command the process of
response to the power loss of the entire power plant or electrical substation
under their control authority according to procedures for response to incidents
involving the national electrical system promulgated by the Ministry of
Industry and Trade of Vietnam.
3. Restore the load power of
electrical distribution systems at the request of regional dispatchers and in
the approved order of priority.
4. Cooperate with regional
dispatchers and other provincial distribution dispatchers in restoring
connections between electrical distribution systems through power lines of a
voltage of 35 kV or lower.
5. Make reports and notify
incidents according to procedures for response to incidents involving the
national electrical system and regulations on electrical distribution systems
promulgated by the Ministry of Industry and Trade of Vietnam.
Article 28. Tasks of district distribution
dispatchers
1. Command the restoration of
the electrical distribution systems under their control authority according to
the approved plans.
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3. Restore the load power of
electrical distribution systems at the request of provincial distribution
dispatchers and in the approved order of priority.
4. Cooperate with provincial
distribution dispatchers and other district distribution dispatchers in
restoring connections between electrical distribution systems through power
lines of a voltage of 35 kV or lower.
5. Make reports and notify
incidents according to procedures for response to incidents involving the
national electrical system and regulations on electrical distribution systems
promulgated by the Ministry of Industry and Trade of Vietnam.
Chapter V
IMPLEMENTATION
Article 29. Implementation organization
1. The Electricity Regulatory
Authority of Vietnam shall disseminate, instruct and inspect the implementation
of this Circular; submit reports to the Ministry of Industry and Trade of
Vietnam for publishing of the list of black start power plants.
2. EVN shall direct its member
units to implement this Circular.
Article 30. Effect
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2. Difficulties that arise
during the implementation of this Circular should be reported to the
Electricity Regulatory Authority of Vietnam for consideration and resolution
within its competence or reporting the Ministry of Industry and Trade of
Vietnam for consideration./.
MINISTER
Tran Tuan Anh