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GB/T 51420-2020: (Smart substation engineering commissioning and acceptance standards)
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(Smart substation engineering commissioning and acceptance standards)
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GB/T 51420-2020
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Basic data | Standard ID | GB/T 51420-2020 (GB/T51420-2020) | | Description (Translated English) | (Smart substation engineering commissioning and acceptance standards) | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | P62 | | Classification of International Standard | 29.240.01 | | Word Count Estimation | 70,721 | | Date of Issue | 2020 | | Date of Implementation | 2020-10-01 | | Issuing agency(ies) | Ministry of Housing and Urban-Rural Development of the People's Republic of China; State Administration for Market Regulation | GB/T 51420-2020: (Smart substation engineering commissioning and acceptance standards)---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
1 General
1.0.1 This standard is formulated in order to standardize the commissioning and acceptance of smart substation projects, improve the quality of commissioning and the level of handover.
1.0.2 This standard is applicable to new construction, renovation and expansion projects of intelligent substations with voltage levels of 110kV (66kV) and above.
1.0.3 The commissioning and acceptance of smart substations shall not only comply with this standard, but also comply with the current relevant national standards.
2 Terms and Abbreviations
2.1 Terminology
2.1.1 configuration configuration
A step of engineering debugging, including selection of functional units, positioning of functional units and establishment of connections between them, etc.
2.1.2 single commissioning single commissioning
The test carried out to ensure the correctness of the function and configuration of individual equipment and devices.
2.1.3 sub-system commissioning
To ensure the correctness of subsystem functions and configurations, the test is carried out on multiple devices associated with the subsystem.
2.1.4 start-up and trial operation
In order to ensure the normal commissioning of new equipment in substations, the start-up power receiving and load tests of the entire system are carried out.
2.1.5 system dynamic test
A dynamic simulation test to verify the performance and reliability of the overall system such as relay protection.
2.1.6 Factory acceptance factory acceptance
After the intelligent equipment completes the factory test, it is accepted before leaving the factory.
2.1.7 site acceptance
During the on-site commissioning of the equipment, the acceptance before the trial operation starts, including intermediate acceptance and completion pre-acceptance.
2.1.8 start acceptance
After the on-site acceptance is completed and the relevant problems have been dealt with, the inspection and acceptance of the new equipment is carried out before the start-up.
2.2 Abbreviations
APPID (Application Identifier) application identifier
CAL (China Accredited Laboratory) China Accredited Inspection Laboratory
CID (Configured IED Description) IED instance configuration file
CMA (China Metrology Accreditation) China Metrology Accreditation
CNAS (China National Accreditation Service for Conformity Assessment) China National Accreditation Service for Conformity Assessment
CPU (Central Processing Unit) central processing unit
GOOSE (Generic Object Oriented Substation Events) Generic Object Oriented Substation Events
GPS (Global Positioning System) Global Positioning System
ICD (IED Capability Description) IED capability description file
IED (Intelligent Electronic Device) intelligent electronic device
INV (Inverter for Power System) inverter power supply for electric power
IP (Internet Protocol) protocol for interconnection between networks
MAC (Media Access Control) media access control
MMS (Manufacturing Message Specification) manufacturing message specification
PMU (Phasor Measurement Unit) Phasor Measurement Unit
PPS (Pulse Per Second) second pulse
SCD (Substation Configuration Description) total station system configuration file
SCL (Substation Configuration Description Language) substation configuration description language
SOE (Sequence Of Event) event sequence record
SV (Sampled Value) sampled value
UPS (Uninterruptible Power System) uninterruptible power supply
VLAN (Virtual Local Area Network) virtual local area network
VQC (Voltage Quality Control) voltage reactive power control
3 basic rules
3.0.1 The scope of commissioning and acceptance specified in this standard is the electrical equipment and systems of smart substations.
3.0.2 The basic process of commissioning and acceptance of smart substations should meet the following requirements.
1 The commissioning sequence of the smart substation should be carried out according to the configuration configuration, single unit commissioning, sub-system commissioning, and start-up trial operation. When the system structure is the first application or is significantly different from previous projects, the system dynamic model test should be carried out. The system dynamic model test should be carried out according to the two Normal and abnormal conditions of secondary equipment;
2 The acceptance sequence of smart substation commissioning should be carried out according to factory acceptance, on-site acceptance, and start-up acceptance.
3.0.3 The equipment (device) to be debugged and accepted shall pass the type test of the unit with testing qualification.
3.0.4 The test instruments and meters for commissioning and acceptance should pass the inspection and be within the validity period.
3.0.5 The routine test of the main body of electrical primary equipment shall comply with the current national standards "Electrical Installation Engineering Electrical Equipment Handover Test Standard" GB 50150, "Electrical Installation Engineering Power Transformer, Oil Immersed Reactor, Transformer Construction and Acceptance Specification" GB 50148, "Code for Construction and Acceptance of High-Voltage Electrical Apparatus for Electrical Installation Engineering" GB 50147 and relevant provisions of related standards.
3.0.6 The routine test of electrical secondary equipment shall comply with the current national standard "Electrical Measurement Transmitter for Converting AC Power into Analog or Digital Signal" GB/T 13850, the current industry standard "Inspection Regulations for Relay Protection and Power Grid Safety Automatic Devices" "DL/T 995 and the relevant provisions of related standards.
3.0.7 The routine acceptance of electrical equipment shall comply with the relevant provisions of the current industry standard "Quality Inspection and Evaluation Regulations for Electrical Equipment in Electrical Installation Engineering" DL/T 5161.1~17 and related standards.
3.0.8 The commissioning and acceptance of smart substations should comply with the current national standard "Electricity Safety Work Regulations" (electrical parts of power plants and substations) GB 26860, as well as the provisions of safety production laws and regulations, and do a good job in hazard analysis and prevention, commissioning and acceptance Plan and safety disclosure work.
4.0.1 The configuration and configuration of the smart substation should include the generation of the SCD file of the whole station, the configuration of the station control layer equipment, IED configuration, network and switch configuration.
4.0.2 The following conditions should be met before the entire site SCD file configuration.
1 The equipment (device) should pass the communication consistency test of a testing agency with CNAS accreditation, CMA certification, CAL accreditation and other qualifications, and the test results should comply with the current industry standard "Substation Communication Network and System Part 10.Consistency Test" DL/ Relevant provisions of T 860.10;
2 The supplier provides the ICD file consistent with the device version;
3 The design drawings meet the engineering requirements, including virtual terminal wiring diagrams, network configuration diagrams, optical port allocation diagrams, etc.
4.0.3 After generating the SCD file of the whole site, the following checks should be carried out.
1 Document SCL syntax legality;
2 File model instance and data set correctness;
3 Data type template and extended modeling consistency;
4 IED naming standardization;
5 Uniqueness of IP address, multicast MAC address, GOID, SMVID, APPID;
6 The correctness of communication parameters such as VLAN and priority;
7 The correctness and completeness of virtual terminal connection and description.
4.0.4 When importing the SCD file into the station control layer equipment, check the correctness of the downloaded configuration of the station control layer equipment.
4.0.5 Export the information related to a single IED from the SCD file to form the CID file and process layer configuration file required by the device and download it to the device. Check the correctness of the configuration of each IED.
4.0.6 Complete the network and switch configuration according to the design and user requirements, and check the correctness of the corresponding configuration and connection.
4.0.7 During the commissioning process, the configuration files of each device should be consistent with the SCD file of the whole station.
5 monomer debugging
5.1 General requirements
5.1.1 The equipment (device) to be debugged should be inspected for data, including the factory test report of the equipment, technical instructions, drawings, etc., and the data should be complete.
5.1.2 The equipment (device) to be debugged should be inspected for appearance, interface and power supply, including appearance inspection, power-on inspection, power supply inspection, insulation test and optical interface power test, which should meet the requirements of the technical agreement.
5.1.3 The equipment (device) to be debugged should be inspected for software and hardware, including hardware configuration inspection, parameter inspection, program version inspection, configuration file version and check code inspection, and should meet the requirements of the technical agreement.
1 Check that the information communication between the status monitoring smart component and the background should be normal, disconnect the communication network connection between the devices, and the communication interruption alarm should be correct;
2 Check that the self-inspection function, record storage function, and system parameter setting modification function of IED monitoring data should meet the requirements of the technical agreement.
5.5.2 Transformer condition monitoring units should carry out oil chromatography gas composition test, oil fine water test, iron core current test, partial discharge test, oil temperature sensor test, oil level sensor test, and the test results should meet the requirements of technical specifications.
5.5.3 The circuit breaker and GIS state monitoring unit shall carry out SF6 pressure monitoring function inspection, circuit breaker opening and closing time test, opening and closing speed test, opening and closing current waveform inspection, energy storage motor current test, knife switch motor current Test, the test results should meet the requirements of technical specifications.
5.5.4 The primary equipment status monitoring units such as capacitors, reactors, lightning arresters, bushings, and current transformers should be inspected for insulation monitoring, and the insulation monitoring function should be correct.
5.6 Relay protection and safety automatic device
5.6.1 The commissioning of relay protection and safety automatic devices shall include setting value inspection, protection logic inspection, longitudinal protection channel inspection and whole group test, etc., and shall comply with the current industry standard "Inspection Regulations for Relay Protection and Power Grid Safety Automatic Devices" Relevant provisions of DL/T 995.
5.6.2 GOOSE input test shall be carried out for relay protection and automatic safety devices, and the GOOSE input shall be simulated. The tested device shall meet the following requirements.
1 GOOSE input information should be consistent with SCD, and input is correct;
2 The GOOSE input volume setting has the associated receiving soft platen function should be correct;
3 The maintenance mechanism input by GOOSE should be correct;
4 The analog GOOSE input transmission link is abnormal, and the relevant protection functions should be handled correctly.
5.6.3 Relay protection and safety automatic devices shall be tested for GOOSE output to simulate GOOSE output, and the tested device shall meet the following requirements.
1 GOOSE output information should be consistent with SCD;
2 The GOOSE output setting has the associated sending soft platen function should be correct, and the name of the GOOSE export soft platen should be consistent with the actual site;
5.6.4 Relay protection and safety automatic devices should be tested for SV input, simulating SV input, and the tested device should meet the following requirements.
1 The amplitude, phase angle and frequency of the SV input of each channel should be correct;
2 The SV input volume setting should be correct with the associated receiving soft platen function;
3 SV maintenance mechanism should be correct;
4 To change the SV input quality bit, the relevant protection functions should be handled correctly;
5 Change the SV input synchronization flag, and the relevant protection functions should be handled correctly;
6 The sampling values of the dual A/D channels in the analog SV input are inconsistent, and the device under test should handle it correctly;
7.The analog SV input transmission link is abnormal, and the relevant protection functions should be handled correctly, and the display and upload information should be correct;
8 For devices with multiple SV inputs, simulate multiple SV inputs, and the SV sampling should be synchronized.
5.6.5 MMS communication inspection shall be carried out for relay protection and safety automatic devices, and the communication between the tested device and the monitoring background, protection fault information sub-station and other station control layer equipment shall be established. The tested device shall meet the following requirements.
1 The analog information such as voltage and current related to the device should be sent correctly;
2.Related information such as the status of the pressing plate of the device, device alarms, protection action events, and communication status should be sent correctly.
5.6.6 The relay protection and safety automatic devices should check that the time synchronization function is correct.
5.7 Measurement and control device
5.7.1 The measurement and control device shall be tested for SV input to simulate SV input, and the device under test shall meet the following requirements.
1 The SV input of each channel should be correct;
2 At the rated frequency, the reference error of voltage and current measurement values should not be greater than 0.2%;
3 At the rated frequency, the quoted error of the measured values of active power, reactive power and power factor shall not be greater than 0.5%;
4 In the range of 45Hz~55Hz, the absolute error of frequency measurement value should not be greater than 0.005Hz;
5 The zero value dead zone value and the changing dead zone value of the sampling value should be correct;
6 SV maintenance mechanism should be correct;
7.Change the quality bit of SV input, the quality bit of telemetry uploaded should be correct, and the synchronous function should be processed correctly;
8 After the SV communication is interrupted, the synchronous function should be reliably blocked, and the displayed and uploaded information should be correct.
5.7.2 The GOOSE input test shall be carried out on the measurement and control device, and the GOOSE input shall be simulated. The device under test shall meet the following requirements.
1 GOOSE input information should be consistent with SCD, and input is correct;
2 To simulate the change of GOOSE input volume, the SOE resolution should not be greater than 1ms;
3 Check that the conversion status of the remote local handle and the maintenance pressure plate should be correct;
4 GOOSE maintenance mechanism should be correct.
5.7.3 The measurement and control device should be tested for control output, and the device under test should meet the following requirements.
1 Release the logic blocking function, issue control commands, and check that the GOOSE output should be correct;
2 Change the state of the inspection platen, and check that the inspection quality output by GOOSE should be correct;
3 Turn on the synchronous function, change the synchronous conditions, and check that the synchronous function should be correct;
4 Put people into the logic blocking function, change the logic blocking condition, and check that the logic blocking output should be correct.
5.8 Digital energy meter
5.8.1 The digital watt-hour meter should be tested for SV input and simulated SV input. The watt-hour meter should correctly display each electric parameter and have corresponding electric energy pulse output.
5.8.2 The digital energy meter shall be checked for basic functions, and shall have network communication functions, event recording functions related to sampling value input, abnormal event recording functions, freezing functions and current calculation functions.
5.9 PMU device
5.9.1 The PMU device test should include accuracy test, real-time recording function check and trigger start sampling data record test, and should comply with the relevant provisions of the current national standard "Testing Specifications for Synchrophasor Measuring Devices in Power Systems" GB/T 26862.
5.9.2 The PMU device shall carry out the SV abnormality alarm test to simulate the abnormality of the SV input, and the device under test shall meet the following requirements.
1 The configuration of the simulated SV message is abnormal, and the alarm should be correct;
2 Analog SV input communication interruption or frame loss timeout, the alarm should be correct;
3 If the analog SV quality bit is invalid or the inspection mark is inconsistent, the alarm should be correct.
5.10 Fault recorder
5.10.1 The test of the fault recording device shall include functional tests such as recording startup, fixed value inspection and device alarm, and shall comply with the relevant provisions of the current industry standard "Inspection Regulations for Relay Protection and Power Grid Safety Automatic Devices" DL/T 995.
5.10.2 GOOSE input test should be carried out on the fault recorder to simulate GOOSE input, and the device under test should display correctly.
5.13.3 The DC insulation monitoring function test shall be carried out for the integrated power supply system, including the following test items.
1 DC grounding line selection detection, simulating the grounding fault of the DC system, when the grounding resistance is lower than the set threshold value, the inspection system should correctly indicate the grounding branch, grounding polarity and issue an alarm...
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