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DL/T 2016-2019: General specification for power system overfrequency generator tripping and separation equipment
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Basic data | Standard ID | DL/T 2016-2019 (DL/T2016-2019) | | Description (Translated English) | General specification for power system overfrequency generator tripping and separation equipment | | Sector / Industry | Electricity & Power Industry Standard (Recommended) | | Classification of Chinese Standard | K45 | | Classification of International Standard | 29.240 | | Word Count Estimation | 14,191 | | Date of Issue | 2019-06-04 | | Date of Implementation | 2019-10-01 | | Quoted Standard | GB/T 191; GB/T 2423.1; GB/T 2423.2; GB/T 2423.4; GB/T 2423.3; GB/T 2423.10; GB/T 2423.22; GB/T 2900.1; GB/T 2900.17; GB/T 2900.49; GB/T 4208; GB/T 4798.2; GB/T 7261-2016; GB/T 9361-2011; GB/T 11287; GB/T 13384-2008; GB/T 14285-2006; GB/T 14537; GB/T 14598 | | Regulation (derived from) | Natural Resources Department Announcement No. 7 of 2019 | | Issuing agency(ies) | National Energy Administration | | Summary | This standard specifies the technical requirements, test methods, inspection rules and requirements for marking, packaging, transportation, storage, etc. of the over-frequency cutting machine and over-frequency splitting device of the power system. This standard applies to over-frequency cutting machines and over-frequency splitting devices (devices for short) of power systems as the basis for scientific research, design, manufacturing, testing, inspection and application of such devices. The corresponding technical requirements of the safety automatic device with the power system over-frequency cutting machine and over-frequency de-sequencing function should also follow this standard. The over-frequency cutting machine and over-frequency splitting device of the new energy collection station shall be implemented by reference. | DL/T 2016-2019: General specification for power system overfrequency generator tripping and separation equipment
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General specification for power system Overfrequency generator tripping and separation equipment
ICS 29.240
K 45
Record number. 63143-2018
People's Republic of China Electric Power Industry Standard
Power system over-frequency cutting machine and over-frequency splitting device
General technical conditions
2019-06-04 released
2019-10-01 implementation
Issued by National Energy Administration
Table of contents
Foreword...II
1 Scope...1
2 Normative references...1
3 Terms and definitions...2
4 Technical requirements...2
5 Functions and technical requirements...4
6 Safety requirements...5
7 Inspection and test...5
8 Marking, packaging, transportation, storage...9
9 Other...9
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the China Electricity Council.
This standard is under the jurisdiction of the Power Industry Relay Protection Standardization Technical Committee.
The main drafters of this standard. Nanjing Nanrui Relay Electric Co., Ltd., State Grid Co., Ltd. Power Dispatching Control Center, China
China Southern Power Grid Co., Ltd. Power Dispatching Control Center, Yunnan Power Dispatching Control Center, State Grid Co., Ltd. Northwest Branch, China
Central China Branch of Home Grid Co., Ltd., Southwest Electric Power Design Institute Co., Ltd., China Southern Power Grid Research Institute Co., Ltd., State Grid Hunan
Provincial Electric Power Co., Ltd. Power Dispatching Control Center, Guodian NARI Technology Co., Ltd. Grid Security and Stability Control Technology Branch, Guodian
Nanjing Automation Co., Ltd., Beijing Sifang Relay Automation Co., Ltd., etc., Shanghai Electric Power Design Institute Co., Ltd.
The main drafters of this standard. Ren Zuyi, Yu Zhao, Zhou Jian, Bai Yang, Niu Shuanbao, Wu Chen, Xu Youping, Xi Hanjiang, He Qiang, Wu
Chong, Liu Hanwei, Liu Yongjun, Xu Yuxin, Dong Xijian, Xu Ke, Xia Shangxue, Li Zhe, Li Yong, Tu Liang, Shi Bonian, Li Chaoqun.
The opinions or suggestions during the implementation of this standard are fed back to the Standardization Management Center of China Electricity Council (Baiguang, Xicheng District, Beijing)
Lu Er Tiao No. 1, 100761).
This standard is issued for the first time.
General technical conditions for power system over-frequency cutting machine and over-frequency splitting device
1 Scope
This standard specifies the technical requirements, test methods, inspection rules and the
Requirements for transportation, storage, etc.
This standard is applicable to the over-frequency cutting machine and over-frequency splitting device (hereinafter referred to as the device) of the power system as the scientific research, design, and
Basis for manufacturing, testing, inspection and application. Corresponding technical requirements for safety automatic devices with power system over-frequency cut-off and over-frequency splitting functions
Requirements should also follow this standard. The over-frequency cutting machine and over-frequency splitting device of the new energy collection station shall be implemented by reference.
2 Normative references
The references in the following documents are essential. For dated reference documents, only the dated version applies to this document. all
For undated references, the latest version (including all amendments) applies to this document.
GB/T 191 Packaging, storage and transportation pictorial signs
GB/T 2423.1 Environmental testing of electric and electronic products Part 2.Test method Test A. Low temperature
GB/T 2423.2 Environmental testing of electrical and electronic products Part 2.Test method Test B. High temperature
GB/T 2423.3 Environmental Test Part 2.Test Method Test Cab. Constant Damp Heat Test
GB/T 2423.4 Environmental testing of electrical and electronic products Part 2.Test method Test Db. Alternating damp heat (12h 12h cycle)
GB/T 2423.10 Environmental testing of electrical and electronic products Part 2.Test method Test Fc. Vibration (sinusoidal)
GB/T 2423.22 Environmental Test Part 2.Test Method Test N. Temperature Change
GB/T 2900.1 Basic terminology for electrical engineering
GB/T 2900.17 Electrical terminology measuring relay
GB/T 2900.49 Electrician Terminology Power System Protection
GB/T 4208 Enclosure protection grade (IP code)
GB/T 4798.2 Environmental conditions for application of electrical and electronic products Part 2.Transportation
GB/T 7261-2016 Basic test methods for relay protection and safety automatic devices
GB/T 9361-2011 Computer site safety requirements
GB/T 11287 Electrical Relay Part 21.Vibration, Shock, Impact and Seismic Test of Measuring Relay and Protection Device Part 1
Article. Vibration Test (Sine)
GB/T 13384-2008 General technical requirements for packaging of mechanical and electrical products
GB/T 14285-2006 Technical Regulations for Relay Protection and Safety Automatic Equipment
GB/T 14537 Impact and collision test for measuring relays and protection devices
GB/T 14598.3 Electrical Relay Part 5.Insulation coordination requirements and tests for measuring relays and protection devices
GB/T 14598.24-2017 Measuring relays and protection devices-Part 24.Power system transient data exchange (COMTRADE) general format
GB/T 14598.26-2015 Measuring Relays and Protection Devices Part 26.Electromagnetic Compatibility Requirements
GB/T 17626.8 Electromagnetic compatibility test and measurement technology Power frequency magnetic field immunity test
GB/T 17626.17 Electromagnetic compatibility test and measurement technology DC power input port ripple immunity test
GB/T 17626.29 Electromagnetic compatibility test and measurement technology DC power input port voltage sag, short-term interruption and voltage change resistance
Disturbance test
GB/T 19520.12-2009 Mechanical Structure of Electronic Equipment 482.6mm (19in) Series Mechanical Structure Dimensions Part 3-101.Sub-box and
Its plugin
GB/T 26399-2011 Power System Security and Stability Control Technology Guide
GB/T 26864-2011 Power System Relay Protection Product Dynamic Model Test
GB/T 32901-2016 General technical requirements for intelligent substation relay protection
DL/T 478-2013 General technical requirements for relay protection and safety automatic devices
DL/T 667-1999 Telecontrol Equipment and System Part 5.Transmission Protocol Part 103.Supporting Standards for Information Interface of Relay Protection Equipment
DL/T 860 (all parts) Substation communication network and system
3 Terms and definitions
GB/T 2900.1, GB/T 2900.17, GB/T 2900.49, GB/T 26399-2011, DL/T 478-2013 and the following
The listed terms and definitions apply to this document.
3.1
Overfrequency
The power system has excessive active power due to various reasons, and the system frequency has increased abnormally and exceeded the allowable range.
3.2
Overfrequency generator tripping and separation equipment
After the power system has excessive active power due to various reasons, resulting in an abnormal increase in frequency, the local generator set is automatically removed or the solution is resolved.
A safety automatic device that sends out the power line to restore the system frequency to the operating allowable range.
4 Technical requirements
4.1 Environmental conditions
4.1.1 Normal working atmospheric conditions
The normal working atmospheric conditions are.
a) Ambient temperature.
b) Relative humidity.
c) Atmospheric pressure.
4.1.2 Reference test atmospheric conditions
The atmospheric conditions of the test basis are.
a) Ambient temperature.
b) Relative humidity.
c) Atmospheric pressure.
4.1.3 Ambient temperature for storage and transportation
The ambient temperature for storage and transportation is.
a) The storage environment temperature is, the relative humidity is not more than 85%;
b) The transportation environment temperature is, the relative humidity is not more than 85%;
When the storage and transportation environmental conditions exceed the above range, it is determined by the user and the manufacturer.
4.1.4 Surrounding environment
The environmental conditions for installation and operation of the device are as follows.
a) It should be shaded, protected from rain and snow, protected from lightning, sand and dust, and ventilated;
b) No electromagnetic interference exceeding 4.11 is allowed;
c) The site should meet the requirements of Class B safety requirements in GB/T 9361-2011;
d) The place of use should not have vibrations that exceed the severity level specified by GB/T 11287 as Class I;
e) Non-explosive medium, the surrounding medium should not contain any medium that can corrode metal, destroy insulation, surface plating and coating.
Conductive medium, no obvious water vapor, no serious molds;
f) All reliable grounding points at the installation site shall comply with relevant standards.
4.1.5 Special conditions of use
When the normal working conditions specified in 4.1.1, 4.1.3, 4.1.4 are exceeded, it is determined by the user and the manufacturer.
When the ambient temperature of the installation site obviously exceeds 4.1.1 normal working environment conditions, the preferred ambient temperature range is specified as.
a) Especially cold areas.
b) Especially hot areas.
4.2 Rated electrical parameters
4.2.1 DC power supply
The requirements for the DC working power supply of the device are as follows.
a) DC rated voltage. 110V, 220V;
b) Allowable deviation.
c) Ripple coefficient. not more than 5%.
4.2.2 AC circuit
The requirements for the AC circuit of the device are as follows.
a) Secondary rated value of AC voltage. 3/100 V; 100V;
b) Rated frequency. 50Hz.
4.3 Power consumption
The power consumption of the device is specified as follows.
a) AC voltage circuit. when it is rated voltage, each phase is not more than 1VA;
b) DC power circuit. when working normally, not more than 50W;
When the device is operating, it is not more than 80W.
4.4 Overload capacity
The overload capacity of the device is specified as follows.
AC voltage circuit. 1.4 times rated voltage. continuous work;
2 times the rated voltage. allow 10s.
4.5 Accuracy of measuring element
The accuracy of the measuring elements of the device is specified as follows.
a) Voltage measurement allowable error. the voltage is within the range of 0.2Un～1.4 and the frequency is within the range, the relative error is not more than 1% or the absolute error is not more than 0.01 Un;
b) Frequency measurement allowable error. the frequency is within the range of 45Hz～55Hz, the error is not more than 0.01Hz; the frequency exceeds 45Hz～55Hz
The range, measurement range and its allowable error are stipulated by the company's product standards or the manufacturer's product documents.
4.6 Structure and appearance
The size of the chassis and plug-in should meet the requirements of GB/T 19520.12-2009.
4.7 Shell protection
The enclosure protection of the device used indoors shall meet the requirements of enclosure protection level specified in 4.10.2 of DL/T 478-2013.
4.8 Requirements for connecting wires, output relays and signal relays
The requirements for the connecting wires, output relays and signal relays in the device shall comply with DL/T 478-2013 in 4.4, 4.5.3, 4.5.4
Provisions.
4.9 Insulation requirements
The insulation requirements of the device shall meet the requirements of 4.9 in DL/T 478-2013.
4.10 Moisture and heat resistance performance requirements
The damp and heat resistance of the device should meet the requirements in 7.3 of DL/T 478-2013.
4.11 EMC requirements
The anti-interference and electromagnetic emission performance of the device shall comply with the regulations in 4.8 of DL/T 478-2013.
4.12 Mechanical properties
The mechanical properties of the device should meet the requirements of 4.10 in DL/T 478-2013.
4.13 Continuous power-on
After the device has been debugged, it shall be subjected to a continuous power-on test in accordance with 4.11 of DL/T 478-2013.
4.14 Requirements for related equipment of smart substation
The requirements of the device for electronic transformers, merging units, smart terminals, time synchronization, and switches shall comply with GB/T 32901-2016
The provisions of 4.13.
5 Functions and technical requirements
5.1 General functions and technical requirements
5.1.1 The device should meet the requirements in 5.1 of GB/T 14285-2006.
5.1.2 Devices that use digital sampling or digital tripping shall meet the requirements of 4.11.4～4.11.6, 4.11.17, GB/T 32901-2016
4.11.18 requirements.
5.1.3 The device should support operation functions such as on-site and remote throwing and retreating of the soft pressure plate, resetting the signal, and modifying the fixed value.
5.1.4 The device should record normal operation information in a chronological manner, such as binary input displacement, pressure plate switching, and setting
Value modification, etc.
5.1.5 Important record information such as device setting value, action information, alarm information, including action
It should be lost. After the power supply returns to normal, it should be able to display and output correctly again.
5.1.6 The device should support the uploading function of software version, fixed value, log, report and other information and recording files.
5.1.7 The device should be equipped with hardware and software lockout functions. Only when the power system is disturbed and the device meets the starting conditions, the unlocking is allowed.
In addition to lock-up.
5.1.8 The device should have hardware and software monitoring functions, and automatically monitor the hardware and software working status. After the device itself is abnormal or malfunctions
Measures such as alarming, self-resetting, and blocking important control loops shall be taken automatically, and abnormal fault information shall be recorded.
5.1.9 The switch input of the device shall meet the following conditions.
a) All DC power sources that enter the loop in the device should be isolated from the internal power supply of the device;
b) The starting voltage value of the heavy current switch-in circuit should not be greater than 0.7 times the DC rated voltage value and not less than 0.55 times the DC rated voltage value.
5.1.10 The fault recording function of the device shall meet the following conditions.
a) The device should be able to record important information during the entire operation, and retain more than 16 operation reports and wave recording information;
b) All recorded data should be converted, output or uploaded in accordance with the requirements of GB/T 14598.24-2017;
c) The recorded information should be able to be displayed, read or printed;
d) The record content should include input analog quantity and switch quantity, output switch quantity, action element, action time, fixed value, pressure plate and fault
Recording waves and so on.
5.1.11 The device should be equipped with a communication interface to meet the communication requirements of the automation system, and the communication transmission protocol should comply with DL/T 667 or DL/T
The relevant provisions of the 860 series of standards.
5.1.12 The device clock and time synchronization function shall meet the following conditions.
a) The device should be equipped with a hardware clock circuit. When the device loses DC power, the hardware clock should work normally.
b) The device should have a time synchronization interface with an external standard timing source.
c) The logic function of the device itself does not rely on an external clock.
5.1.13 Necessary auxiliary software shall be provided, such as communication and maintenance software, fixed value setting auxiliary software, fault record analysis software, debugging auxiliary software
Help software.
5.2 Device functions and technical requirements
5.2.1 Frequency setting range and error
The regulation of frequency setting range and error are as follows.
a) Frequency setting range. 50Hz～55Hz;
b) Frequency setting error. ≤0.01Hz.
5.2.2 Time setting range and error
The regulations on the setting range and error of time setting are as follows.
a) Over-frequency cutting machine. 0.10s～100.00s;
b) Over-frequency unloading. 0.10s～100.00s;
c) Time setting error. ≤1% setting value or 60ms.
5.2.3 Return characteristics of the device
The difference between the return value and the action value (the action value minus the return value). 0.05 Hz to 0.1 Hz.
5.2.4 It shall have monitoring functions for parameters such as voltage and frequency, and the frequency of the device shall be measured by voltage.
5.2.5 There should be an over-frequency start loop, and the export is allowed only after the over-frequency start loop is activated.
5.2.6 When the device is used for over-frequency cutting, it has the function of cutting off the generator set in rounds, and each round should be judged independently.
5.2.7 When the device is used for over-frequency splitting, it has the function of splitting the line in rounds, and each round should be judged independently.
5.2.8 When the device is used for over-frequency cut-off in a power plant, it is advisable to install a generator set allowable cut pressure plate to realize the cut-off function of each generator set.
5.2.9 When the device is used for over-frequency cutting, it should have the function of flexibly selecting and cutting generator sets.
5.2.10 In the event of abnormal voltage such as PT disconnection or poor contact of the voltage circuit, the device shall have measures to prevent misoperation and give an alarm in time.
5.2.11 When the over-frequency cut-off function and over-frequency de-sequence function are integrated into one device, the two functions should be completely independent and cannot affect each other.
5.2.12 A single device monitors the frequency of a system. For substations or power plants that operate separately, each system should be equipped with a separate device.
6 Safety requirements
The safety performance of the device should meet the requirements of Chapter 6 of DL/T 478-2013.
7 Inspection and testing
7.1 Overview
7.1.1 Unless otherwise specified, all tests shall be carried out under the atmospheric conditions of the reference test specified in 4.1.2.
7.1.2 The device under test and the test instrument must be well grounded.
7.1.3 The surrounding environment should meet the requirements of 4.1.4.
7.1.4 The inspection of the device can generally be divided into two types. factory inspection and type test.
7.2 Factory inspection and type test
7.2.1 Factory inspection
Each device should be inspected by the manufacturer's quality inspection department before leaving the factory. Qualified products
There should be a product qualification certificate certifying that the device is qualified. The factory inspection items are listed in Table 1.
7.2.2 Type test
a) Type test should be carried out in any of the following situations.
1) Before new product development or finalization;
2) After the product is officially put into production, if there are major changes in the design (including software), process materials, components, etc., the evaluation will affect the device
Performance or safety.
b) When conducting a type test on a product in a series of products, full consideration should be given to covering the entire product series, and risk assessment documents should be provided,
Determine which type tests are effective for the entire series of products, and which type tests are needed for the remaining products in the series.
c) If the device has passed the type test and there is no change in the design, components, process materials or software, the type test should not be repeated. Such as
If there are changes, a risk assessment should be conducted, and a document to determine which type test items are still valid and which type test items must be redone
Pieces. Type test items are listed in Table 1.
7.2.3 Inspection and test procedures
a) It should be ensured that the device complies with its specifications, and its function can function correctly at the beginning of the test and the initial test stage.
The stage maintains the specified characteristics of the device. During the inspection, the initial and final inspections shall be carried out through intuitive performance tests.
b) In the inspection and test procedure, if the final measurement of the previous inspection item corresponds to the initial measurement of the next inspection item, there is no
It is necessary to make two measurements.
7.2.4 Qualified judgment
a) During the test, if no samples with major defects are found, the batch of products or test products shall be deemed qualified.
b) The main defect of the device refers to the performance or function that does not comply with GB/T 14285-2006, DL/T 478-2013, GB/T 26399-2011
In accordance with the requirements of this standard, it can only be eliminated after replacing important components, or there are generally irreparable defects (vulnerable components
Except), the remaining defects are regarded as general defects.
c) During various tests and inspections, the number of general defects should not exceed 20% of the number of inspections, otherwise the statistics are based on the existence of major defects.
d) For safety type testing, the acceptable criterion is. zero defects are qualified, and general defects are unqualified.
7.3 Climate environment test
The climatic environment test shall be carried out in accordance with the provisions of 7.3 of DL/T 478-2013, and the device shall be able to withstand the climatic environment specified in 4.1 and 4.10 regulations.
The performance and function should meet the requirements of Chapter 5.
7.4 Electromagnetic compatibility test
7.4.1 Device port
The specific interface between the device and the external electromagnetic environment is called a port. It contains power ports, input ports, output ports, communication ports,
Shell ports and functional ground ports, see Figure 1.
Figure 1 Schematic diagram of the ports of the tested device
All devices shall undergo various electromagnetic compatibility tests according to the ports (ports specified by the manufacturer).
7.4.2 Electromagnetic emission test
According to the regulations and methods in 7.4 of DL/T 478-2013, the electromagnetic emission test of the device shall meet the requirements of 4.11.
7.4.3 Immunity test
According to the provisions and methods in 7.4 of DL/T 478-2013, the electromagnetic immunity test of the device shall meet the requirements of 4.11.
7.5 DC power port voltage drop, short-term interruption, transient and ripple test
In accordance with DL/T 478-2013, 7.5 requirements, test the auxiliary power port voltage drop, short-term interruption, transient and ripple
And qualified judgment.
7.6 Mechanical test
7.6.1 Vibration response and durability (sinusoidal)
According to the requirements of 4.12, in accordance with the test methods and qualification criteria specified in Table 22 of DL/T 478-2013, the vibration response and resistance
Long-term testing and qualification determination.
7.6.2 Impact response, impact resistance and collision
According to the requirements of 4.12, in accordance with the test methods and qualification criteria specified in Table 23 of DL/T 478-2013, the impact response and impact
Tolerance, collision test and qualification determination.
7.7 Insulation test
According to the requirements of 4.9, the insulation test of the device shall be carried out in accordance with the provisions and methods in 7.7 of DL/T 478-2013, which shall meet the requirements of 4.9
Claim.
7.8 Accuracy and variation test
According to the requirements of 4.5, according to the provisions and methods of 6.5 of GB/T 7261-2016, carry out the accuracy and variation measurement test, and
DL/T 478-2013 definition in 4.3 is calculated.
7.9 Device function test
7.9.1 Use relay protection test equipment to test the function of the device. If necessary, conduct a dynamic simulation test of the power system. The function of the device should be
It meets the requirements of Chapter 5, and the test results should meet the requirements of 7.9.3 in DL/T 478-2013.
7.9.2 Basic function test.
a) The fixed value of the action frequency of the over-frequency cutting machine and over-frequency unloading;
b) The action delay setting value of the over-frequency cut-off and over-frequency splitting;
c) The operating characteristics of over-frequency cutting and over-frequency de-staging;
d) Check the correctness of the logic circuit and its combined actions.
7.9.3 Other functional tests.
a) Hardware system self-check;
b) Hardware sy...
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