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DL/T 1073-2019: General specifications for high speed transfer equipment for the power supplies for auxiliary equipment in power plant
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General specifications for high speed transfer equipment for the power supplies for auxiliary equipment in power plant
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General specifications for high speed transfer equipment for the power supplies for auxiliary equipment in power plant
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Basic data | Standard ID | DL/T 1073-2019 (DL/T1073-2019) | | Description (Translated English) | General specifications for high speed transfer equipment for the power supplies for auxiliary equipment in power plant | | Sector / Industry | Electricity & Power Industry Standard (Recommended) | | Classification of Chinese Standard | K45 | | Classification of International Standard | 29.240 | | Word Count Estimation | 17,184 | | Date of Issue | 2019-06-04 | | Date of Implementation | 2019-10-01 | | Older Standard (superseded by this standard) | DL/T 1073-2007 | | Quoted Standard | GB/T 2423.3-2016; GB/T 2887-2011; GB/T 2900.1; GB/T 2900.17; GB/T 2900.49; GB/T 7261-2016; GB/T 11287-2000; GB/T 14537; GB/T 14598.3-2006; GB/T 14598.24-2017; GB/T 14598.26-2015; GB/T 14598.27-2017; GB/T 17626.8-2006; GB/T 17626.9-2011; GB/T 17626.10-2017 | | Issuing agency(ies) | National Energy Administration | | Summary | This standard specifies the technical requirements, test methods, inspection rules, and requirements for marking, packaging, transportation, and storage of power fast switching devices for power plants (hereinafter referred to as "devices"). This standard is applicable to the fast switching device of power supply for power plant, as the basis for the design, production, test and operation of the device. | DL/T 1073-2019: General specifications for high speed transfer equipment for the power supplies for auxiliary equipment in power plant
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General specifications for high speed transfer equipment for the power supplies for auxiliary equipment in power plant
ICS 29.240
K 45
People's Republic of China Electric Power Industry Standard
Replace DL/T 1073-2007
Fast switching device for auxiliary power supply in power plant
General technical conditions
Refractory materials for boilers in thermal power plants
2019-06-04 released
2019-10-01 implementation
Issued by National Energy Administration
Table of contents
Foreword...
1 Scope...1
2 Normative references...1
3 Terms and definitions...2
4 Technical requirements...3
5 Test method...9
6 Inspection Rules...12
7 Marking, packaging, transportation, storage...14
8 Other...14
Foreword
This standard is compiled in accordance with the rules given in GB/T 1.1-2009.
This standard replaces DL/T 1073-2007 "General Technical Requirements for Fast Switching Devices of Auxiliary Power Supply in Power Plants", and DL/T 1073-2007
In comparison, with the exception of editorial changes, the main technical changes are as follows.
--The name of the standard was revised to "General Technical Requirements for Fast Switching Devices for Stationary Power in Power Plants";
--Update the reference standards and update the corresponding technical parameters;
--Standard 3 terms and definitions, adding the terms "target power" and "long delay switching";
--According to DL/T 478-2013 "General Technical Requirements for Relay Protection and Safety Automatic Devices", the outline and content of the original standard have been greatly expanded
Range modification and supplement;
--Standard 4.7 The main functions of the device, adding the requirements of post-acceleration protection, decoupling function and phase angle compensation function;
--Standard 4.7 The main functions of the device, modify and supplement the requirements for fault recording, communication and time synchronization functions;
--Standard 4.8 The main technical requirements of various functions, the content of fixed value setting is deleted;
--Standard 4.8 The main technical requirements for various functions, adding the requirements for low-voltage bus start switching and clock accuracy;
--Standard 4.8 The main technical requirements of various functions, and the condition requirements for the same phase switching are modified;
--Standard 6 inspection rules, adding factory inspection requirements;
- Standard 8 "Others", merge the original standard "8 Others" and the original standard "9 Product accompanying documents".
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., Guodian Nanjing Automation Co., Ltd., China Datang Collection
Group Science and Technology Research Institute Co., Ltd. East China Electric Power Test and Research Institute, Datang Dongying Power Generation Co., Ltd., Xi'an Thermal Power Research Institute Co., Ltd.,
Shenhua Guoshen Group Technology Research Institute, State Grid Hunan Electric Power Research Institute, China Huaneng Group Corporation, Jiangsu Jinzhi Technology Stock
Power Research Co., Ltd., Siemens Power Automation Co., Ltd., Zheneng Yueqing Power Generation Co., Ltd., State Grid Henan Electric Power Company
Institute, Guodian Shuangliao Power Generation Co., Ltd., Jiangsu Fangtian Power Technology Co., Ltd., Beijing Sifang Relay Automation Co., Ltd., Xu Jiji
Mission Co., Ltd.
The main drafters of this standard. Chen Jun, Niu Honghai, Le Lingzhi, Chen Yanyun, Li Wei, Wu Pengyue, Ju Zhenghao, Ni Qunhui, Xu Liqiang,
Ma Jinhui, Li Jie, Gao Dijun, Lin Tong, Han Wei, Xu Gang, Liu Lei, Zhang Zhiqiang, Zhang Zhenhua, Wu Shijie, Cao Zhen, Ling Gang, He Qiang
The previous published versions of the standard replaced by this standard are.
--DL/T 1073-2007
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).
General technical requirements for fast switching devices for auxiliary power supply in power plants
1 Scope
This standard specifies the technical requirements, inspection methods, and inspection rules for fast switching devices for auxiliary power supplies in power plants (hereinafter referred to as "devices")
And the requirements for marking, packaging, transportation and storage.
This standard applies to fast switching devices for auxiliary power supplies in power plants as the basis for the design, production, testing and operation of the devices.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB/T 2423.3-2016 Environmental Test Part 2.Test Method Test Cab. Constant Damp Heat Test
GB/T 2887-2011 General Specification for Computer Site
GB/T 2900.1-2008 Basic terminology for electrical engineering
GB/T 2900.17-2009 Electrotechnical terminology measuring relay
GB/T 2900.49 Electrician Terminology Power System Protection
GB/T 7261-2016 Basic test methods for relay protection and safety automatic devices
GB/T 11287-2000 Electrical Relay Part 21.Measuring the vibration, shock, collision and earthquake of relays and protection devices
Test Part 1.Vibration Test (Sine)
GB/T 14537 Impact and collision test for measuring relays and protection devices
GB/T 14598.3-2006 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)
Common format
GB/T 14598.26-2015 Measuring Relays and Protection Devices Part 26.Electromagnetic Compatibility Requirements
GB/T 14598.27-2017 Measuring Relays and Protection Devices Part 27.Product Safety Requirements
GB/T 17626.8-2006 Electromagnetic compatibility test and measurement technology Power frequency magnetic field immunity test
GB/T 17626.9-2011 electromagnetic compatibility test and measurement technology pulse magnetic field immunity test
GB/T 17626.10-2017 Electromagnetic compatibility test and measurement technology Damped oscillation magnetic field immunity test
GB/T 17742-2008 China Earthquake Intensity Table
GB/T 19520.12 Mechanical Structure of Electronic Equipment 482.6mm (19in) Series Mechanical Structure Dimensions Part 3-101.Sub-box and
Plug-in
GB/T 19582.1-2008 Industrial Automation Network Specification Based on Modbus Protocol Part 1.Modbus Application Protocol
DL/T 478-2013 General technical requirements for relay protection and safety automatic devices
DL/T 667 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
DL/T 995-2016 Inspection Regulations for Relay Protection and Power Grid Security Automatic Devices
3 Terms and definitions
The following terms and definitions defined in GB/T 2900.1, GB/T 2900.17, and GB/T 2900.49 apply to this document.
3.1
Target power supply
The power supply that supplies power to the bus after the device performs switching.
3.2
Parallel transfer
Turn on the standby power circuit breaker first, and then open the working power circuit breaker, or close the working power circuit breaker first, and then open the standby power circuit breaker.
Switching method of router.
3.3
Series switching
Open the working power circuit breaker first, and then close the standby power circuit breaker, or first open the standby power circuit breaker, and then close the working power circuit breaker.
Switching method of router.
3.4
Switch simultaneously
Simultaneously issue the switching mode of trip command and closing command.
3.5
Fast transfer
Before the bus residual voltage and the target power voltage are reversed for the first time, closing the target power circuit breaker is a kind of shortest delay and closing shock
The switching method with the least current.
3.6
In-phase transfer
After the bus residual voltage and the target power supply voltage are reversed for the first time, when the two are in the same phase, the target power circuit breaker is closed, which is a time delay.
Long switching mode.
3.7
Residual voltage transfer
When the bus voltage decays below the residual voltage switching setting value, the target power circuit breaker is closed, which is a switching method with a long delay.
3.8
Long-time transfer
Fast, same-phase and residual voltage switching modes did not send out the target power circuit breaker closing pulse, and closed after a long delay.
3.9
Two-way switching
Including switching from the working power source to the standby power source and from the standby power source to the working power source.
4 Technical requirements
4.1 Environmental conditions
4.1.1 Normal working atmospheric conditions
The normal working atmospheric conditions of the device are as follows.
a) Ambient temperature. -10℃～＋55℃;
b) Relative humidity. 5%～95% (there is neither condensation nor freezing inside the device);
c) Atmospheric pressure. 80kPa～106 kPa.
4.1.2 Normal test atmospheric conditions
The normal test atmospheric conditions of the device are as follows.
a) Ambient temperature. 15℃~35℃;
b) Relative humidity. 45%～75%;
c) Atmospheric pressure. 86 kPa～106 kPa.
4.1.3 Standard atmospheric conditions for benchmark tests
The standard atmospheric conditions for the device benchmark test are as follows.
a) Ambient temperature. 20℃±2℃;
b) Relative humidity. 45%～75%;
c) Atmospheric pressure. 86kPa～106kPa.
4.1.4 Environmental conditions for storage and transportation
a) The allowable ambient temperature for storage of the device is -25℃～55℃; the relative humidity is not more than 85%;
b) The allowable ambient temperature for transportation of the device is -25℃～70℃, and the relative humidity is not more than 85%.
When the storage and transportation environmental conditions exceed the above range, the user and the manufacturer shall negotiate.
4.1.5 Surrounding environment
The working environment requirements of the device should meet.
a) It should be shaded, protected from rain and snow, protected from lightning, sand and dust, and ventilated;
b) The electromagnetic environment should meet the requirements of 4.12;
c) No vibration exceeding the severity level of GB/T 11287-2000 specified in GB/T 11287-2000, and no vibration exceeding GB/T
An earthquake with an intensity of Ⅶ specified in 17742-2008; during transportation and storage, no severeness exceeding GB/T 14537 has occurred
Class 1 vibration;
d) Non-explosive medium, the surrounding medium should not contain any medium that can corrode metal, damage insulation, surface plating and coating.
Conductive medium, no obvious water vapor, no serious mold, no strong light source;
e) All reliable grounding points at the installation site shall comply with the provisions of 5.8 in GB/T 2887-2011.
4.2 Rated electrical parameters
4.2.1 DC power supply
The DC power requirements of the device are as follows.
a) Rated voltage. 220V, 110V;
b) Allowable deviation. -20%～＋15%;
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) AC voltage rating UN. 100V, 100/3 V;
b) AC current rating IN. 1A; 5A;
c) Rated frequency fN. 50Hz.
4.3 Power consumption
The power consumption requirements of the device are as follows.
a) AC current loop. when the rated current is 5 A, each phase is not more than 0.75 VA;
When the rated current is 1 A, each phase is not more than 0.5 VA;
b) AC voltage circuit. when rated voltage, each phase is not more than 0.5 VA;
c) DC power circuit. when working normally, not more than 30W;
When the device is operating, it is not more than 50W.
4.4 Overload capacity
4.4.1 Requirements for overload capacity
The overload capacity requirements of the device shall meet the requirements of 4.6 in DL/T 478-2013.
4.4.2 Evaluation criteria for overload capacity
After the device is subjected to overcurrent or overvoltage, there should be no insulation damage, liquefaction, carbonization or scorching, etc. The relevant electrical performance should meet 4.5
Requirements.
4.5 Accuracy and variation
The accuracy and variation requirements of the device are as follows.
a) Phase measurement error. the absolute error does not exceed ±1°;
b) Frequency measurement error. the absolute error does not exceed ±0.03Hz.
The accuracy and variation requirements of other measuring components in the device should meet the requirements of DL/T 478-2013 in 4.3.
4.6 Requirements for wiring terminals, output relays and signal relays
The wiring terminals, output relays and signal relays of the device shall meet the requirements of 4.4, 4.5.3, and 4.5.4 in DL/T 478-2013.
4.7 Main functions of the device
4.7.1 The device should have the following starting methods.
a) Manual start mode, including local start and remote start;
b) The accident start mode is started by an external protection device;
c) Abnormal starting methods, including bus low-voltage starting and operating circuit breaker start.
4.7.2 In the manual start mode, the device shall have a two-way switching function.
4.7.3 In the accident start or abnormal start mode, the device should only have a single direction switch from the working power source to the standby power source.
4.7.4 The device should be able to automatically lock the switching function after performing a switching action. After the device is manually reset, the next switching can be performed.
4.7.5 In manual starting mode, the device shall have three switching modes. parallel switching, simultaneous switching and series switching.
4.7.6 In the accident start and bus low-voltage start mode, the device shall have two switching modes. simultaneous switching and series switching.
4.7.7 The device shall provide five switching judgment conditions. parallel switching criterion, fast switching, in-phase switching, residual voltage switching and long delay switching.
4.7.8 The device should have a decoupling function to prevent the two power sources from being paralleled for a long time to form a circulating current when they are connected in parallel or switched simultaneously.
4.7.9 The device should have a post-acceleration protection function, which can accelerate the tripping of the target power circuit breaker when the target power source is switched to the faulty bus.
4.7.10 The device should have a phase angle compensation function to compensate for the working power or backup power caused by the difference in the voltage collected by the device
The initial angular difference between the voltage and the bus voltage.
4.7.11 The device shall be equipped with an alarm for abnormal position of the circuit breaker, an alarm for the loss of DC power, an alarm for bus TV disconnection, and an alarm for low-voltage target power supply
police.
4.7.12 When the circuit breaker position is abnormal and the busbar TV is disconnected, the device should be locked and switched; when the target power supply voltage is low, the device should be locked and switched.
4.7.13 The device should be equipped with an opening contact for lock switching and an outlet contact for acceleration protection after starting, for cooperation with protection or automatic devices.
4.7.14 The starting voltage value of the circuit breaker position input, accident switching input and manual start switching input should not be greater than 0.7 times the rated voltage
Value, not less than 0.55 times the rated voltage.
4.7.15 The device should provide Chinese display interface and Chinese menu.
4.7.16 The device should be equipped with hardware and software monitoring functions to automatically monitor the hardware and software working status. When the device is abnormal or faulty, the device should be able to
Automatically take measures such as alarm, self-reset, and lock switch functions and record the abnormal fault information found.
4.7.17 All kinds of important record information of the device, including fixed value, action event information and accident record, will not be recorded in the case of loss of DC power.
Should be lost.
4.7.18 The device shall have a fault recording function and shall meet the following requirements.
a) The device should be able to reliably record the relevant information of the action, such as the input analog quantity and switch quantity, output switch quantity, action element,
Action time, etc., and has the function of storing no less than 8 fault record data; each action report should include the action of each action element
Make the data of the first 2 cycles and the 6 cycles after the action;
b) The fault recorder data recorded by the device should be output in the format specified in GB/T 14598.24-2017;
c) The device should have the function of displaying and printing record information, providing protection action information for understanding the situation and handling accidents; providing analysis
The basis for accidents and protective actions.
4.7.19 The device should be equipped with a debugging interface and auxiliary software, with functions such as communication and maintenance, fixed value setting, fault recording and analysis, and debugging.
4.7.20 The device should be equipped with an interface capable of communicating with the automation system. The communication data format of the communication interface should follow a unified protocol, adopt
GB/T 19582.1-2008, DL/T 667 or DL/T 860 series standard communication protocol. The manufacturer shall declare the communication protocol, communication
Type of communication medium and equipment used for communication.
4.7.21 Device clock and time synchronization function.
a) The device should be equipped with a hardware clock circuit. When the device loses power or loses an external clock source, the clock circuit should be able to work normally and have a guard
Time function
b) The device should be equipped with a time synchronization interface with an external standard time service source. It is recommended to use IRIG-B in accordance with IEEE std 1344-1995
(DC) Time code; network time can also be used.
4.8 Main technical requirements for various functions
4.8.1 Accuracy of setting
The accuracy of the setting should meet the following conditions.
a) Frequency setting. allowable error is not more than 0.03Hz;
b) Phase setting. allowable error is not more than 1°;
c) Voltage setting. allowable error is not more than 2.5% or not more than 1% UN;
d) Current fixed value. allowable error is not more than 2.5% or ±0.02IN;
e) Time setting. allowable error is not more than 1% or not more than 40ms.
4.8.2 Bus low voltage start switch
The following conditions should be met.
a) The busbar TV should be prevented from being disconnected, causing the busbar to start by low voltage;
b) The return coefficient is not greater than 1.05.
4.8.3 Device action time during fast switching
The time from the opening of the working circuit breaker to the closing of the relay contact of the standby circuit breaker of the device is not more than 15ms.
4.8.4 Conditions for same phase switching
When the target power circuit breaker is closed, the phase difference between the bus residual voltage and the target power voltage is less than 30°.
4.8.5 Resolution of sequence of events
Not more than 2ms.
4.8.6 Clock accuracy
The timing error should not be greater than 1ms. When the time synchronization signal disappears, the device's own clock is used, and the 24h error is not more than 5s.
4.9 Safety requirements
The safety performance of the device should meet the requirements of GB/T 14598.27-2017.
4.10 Insulation performance
4.10.1 Insulation resistance
Under the atmospheric conditions of the reference test, the external live circuit part of the device (except the communication interface circuit) and the exposed non-charged metal part and
Between the shells, and between the circuits that are not electrically connected, use a 500V DC megger to measure the insulation resistance value, which should not be less than
100MΩ.
4.10.2 Dielectric strength
The dielectric strength should meet.
a) Under the atmospheric conditions of the reference test, the device should be able to withstand a power frequency withstand voltage test with a frequency of 50 Hz and a duration of 1 min without breakdown or flash.
Damage to the network and components;
b) The power frequency test voltage value is selected according to Table 1, or DC test voltage can be used, and its value should be the specified power frequency test voltage value
1.4 times;
c) During the test, when a voltage is applied to any circuit under test, the remaining circuits are connected to the ground with equal potential.
4.10.3 Impulse voltage
Refer to the test standard of GB/T 14598.3-2006, under the standard atmospheric conditions of the test, the DC power input circuit and AC
The current input circuit, signal output contact and other circuits to the ground, and between the circuits, should be able to withstand the short-term impact of the standard lightning wave of 1.2/50μs
Voltage test. When the rated insulation voltage is greater than 63V, the open circuit test voltage is 5kV; when the rated insulation voltage is not greater than 63V, the open circuit
The test voltage is 1kV. The performance of the device after the test should meet the requirements of 4.7 and 4.8.
4.11 Humidity and heat resistance
4.11.1 General requirements
According to the test conditions and use environment, choose one of the following two methods.
4.11.2 Constant heat and humidity
The device should be able to withstand the constant damp heat test specified in GB/T 2423.3-2016.The test temperature is +40ºC±2ºC, and the relative humidity is
93%±3%, the test duration is 48h. Within 2h before the end of the test, use a 500V DC megohmmeter to measure the
The insulation resistance between the exposed non-charged metal parts and the shell, and between the circuits that are not electrically connected should not be less than 1.5MΩ;
The quality strength is not less than 75% of the dielectric strength test voltage amplitude specified in 4.10.2.
4.11.3 Alternating heat and humidity
The device should be able to withstand the alternating damp heat test specified in 10.5 of GB/T 7261-2016.The test temperature is high temperature. +40ºC±2ºC (use
Outdoor products are 55°C±2°C), low temperature. +25°C±3°C, relative humidity is 95%, the test time is 2 cycles, each cycle
At 24h. Within 2 hours before the end of the test, use a 500V DC megger to measure the exposed non-charged metal parts and
The insulation resistance between the enclosures and between the circuits that are not electrically connected should not be less than 1.5MΩ, and the dielectric strength should not be less than 3.8.2
75% of the dielectric strength test voltage amplitude.
4.12 EMC performance
4.12.1 Radiated electromagnetic field immunity
The device should be able to withstand the severe radiated electromagnetic field immunity test specified in Chapter 6 of GB/T 14598.26-2015.During the test
And after the test, the device performance indicators should meet the requirements of 4.7 and 4.8.
4.12.2 Electrical fast transient/burst immunity
The device should be able to withstand the electrical fast transient/pulse group immunity specified in Chapter 6 of GB/T 14598.26-2015 with a severity level of Class A
During and after the test, the performance indicators of the device should meet the requirements of 4.7 and 4.8.
4.12.3 Slowly damped shock wave immunity
The device should be able to withstand the 1MHz and 100kHz slow damping shock wave immunity test specified in Chapter 6 of GB/T 14598.26-2015,
During and after the test, the performance indicators of the device should meet the requirements of 4.7 and 4.8.
4.12.4 Electrostatic discharge immunity
The device should be able to withstand the electrostatic discharge immunity test with severity level 3 specified in Chapter 6 of GB/T 14598.26-2015.The test period
During and after the test, the device performance indicators should meet the requirements of 4.7 and 4.8.
4.12.5 Surge (impact) immunity
The device should be able to withstand the surge of the test severity level specified in Chapter 6 of GB/T 14598.26-2015 as common mo...
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