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GB/T 40096.5-2021: Technical specification for on-site protection equipment - Part 5: Line protection
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Technical specification for on-site protection equipment - Part 5: Line protection
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GB/T 40096.5-2021
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Basic data | Standard ID | GB/T 40096.5-2021 (GB/T40096.5-2021) | | Description (Translated English) | Technical specification for on-site protection equipment - Part 5: Line protection | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K45 | | Word Count Estimation | 42,412 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 40096.5-2021: Technical specification for on-site protection equipment - Part 5: Line protection
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(Technical specifications for in-situ protection relay devices Part 5.Line protection)
ICS 29.240
K45
National Standards of People's Republic of China
Technical specifications for in-situ protection relays
Part 5.Line protection
Released on 2021-05-21
2021-12-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Technical requirements 2
4.1 Environmental conditions 2
4.2 Rated electrical parameters 2
4.3 Accuracy and variation 3
4.4 General requirements 3
4.5 Technical Principle 4
4.6 Technical performance 5
4.7 Requirements for related equipment 6
4.8 Power consumption 7
4.9 Overload capacity 7
4.10 Insulation requirements 7
4.11 Humidity and heat resistance 7
4.12 Protective connection impedance 7
4.13 Mechanical requirements 7
4.14 Electromagnetic compatibility performance 8
4.15 Continuous power-on 9
4.16 Structure and appearance requirements 9
4.17 Enclosure protection 9
4.18 Safety requirements 9
4.19 Dynamic simulation 10
5 Test method 10
5.1 Test conditions 10
5.2 Structure and visual inspection 10
5.3 Climatic environment test 10
5.4 DC power influence test 11
5.5 Checking accuracy and variation 11
5.6 Device function and performance test 11
5.7 Dynamic simulation test 11
5.8 Power consumption test 12
5.9 Overload capacity test 12
5.10 Insulation performance test 12
5.11 Humidity and heat resistance test 13
5.12 Protective connection impedance test 13
5.13 Mechanical performance test 13
5.14 Electromagnetic compatibility performance test 13
5.15 Continuous energization test 13
5.16 Shell protection test 14
5.17 Safety requirements test 14
5.18 Communication interface test 14
6 Inspection rules 14
6.1 Inspection classification 14
6.2 Factory inspection 14
6.3 Type inspection 15
7 Marking, packaging, transportation and storage 15
7.1 Sign 15
7.2 Packaging 16
7.3 Transportation 16
7.4 Storage 16
8 other 16
8.1 Product accompanying documents 16
8.2 Device design life index 16
8.3 Quality assurance period 16
Appendix A (informative appendix) 110(66)kV line protection device information 17
Appendix B (informative appendix) 110(66)kV line protection device intermediate node logic diagram 37
Appendix C (informative appendix) 110(66)kV line protection device size and special connector layout diagram 38
Technical specifications for in-situ protection relays
Part 5.Line protection
1 Scope
This part of GB/T 40096 specifies the technical requirements for in-situ line protection devices and related equipment sampled by conventional transformers.
Requirements, test methods, inspection rules and requirements for marking, packaging, transportation, and storage.
This Part is applicable to the development, design, manufacturing, testing, and testing of 110 (66) kV in-situ line protection devices (hereinafter referred to as devices)
Inspection and application.
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 article
Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 191 Packaging, storage and transportation pictorial signs
GB/T 2423.17 Environmental testing of electrical and electronic products Part 2.Test method Test Ka. Salt spray
GB/T 2423.22 Environmental Test Part 2.Test Method Test N. Temperature Change
GB/T 2423.24 Environmental test Part 2.Test method Test Sa. Simulate solar radiation on the ground and its test guide
GB/T 2887-2011 General Specification for Computer Site
GB/T 4208-2017 Enclosure protection grade (IP code)
GB/T 4798.2 Environmental conditions for the 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 9771 (all parts) Single-mode optical fiber for communication
GB/T 11287 Electrical Relay Part 21.Vibration, Shock, Impact and Seismic Test of Measuring Relays and Protection Devices
Test Part 1.Vibration Test (Sine)
GB/T 12357 (all parts) Multimode optical fiber for communication
GB/T 13384 General technical conditions 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 14598.2-2011 Measuring Relays and Protection Devices Part 1.General Requirements
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 17626.9-2011 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 17626.18-2016 Electromagnetic compatibility test and measurement technology Damped oscillation wave immunity test
GB/T 26864 Power System Relay Protection Product Dynamic Model Test
GB/T 32890-2016 Relay Protection IEC 61850 Engineering Application Model
GB/T 32901-2016 General technical requirements for intelligent substation relay protection
GB/T 40096.1 Technical specification for in-situ protection relay devices Part 1.General technical conditions
DL/T 478-2013 General technical requirements for relay protection and safety automatic devices
DL/T 860 (all parts) Power automation communication network and system
DL/T 1782 Information Specification for Substation Relay Protection
3 Terms and definitions
The terms and definitions defined in GB/T 40096.1 apply to this document.
4 Technical requirements
4.1 Environmental conditions
4.1.1 Normal environmental conditions
4.1.1.1 Normal working atmospheric conditions
The atmospheric conditions of the place where the device is used should meet the following requirements.
a) Ambient temperature. -40℃~ 70℃;
b) Relative humidity. 0%~100%;
c) Atmospheric pressure. 61.6kPa~106kPa.
4.1.1.2 Storage and transportation environment
The storage and transportation environment of the device should meet the following requirements.
a) The ambient temperature is -40℃~70℃, and the relative humidity is not more than 85%;
b) During storage and transportation, there should be no impact and collision exceeding the severity level 2 specified in GB/T 14537.
4.1.1.3 Surrounding environment
The surrounding environment of the device use location should meet the following requirements.
a) The electromagnetic environment should be lower than the device immunity level requirements specified in Table 3 (except for radiated emission and conducted emission) in 4.14;
b) There is no vibration that exceeds the severity level 2 specified in GB/T 11287 at the place of use;
c) The place of use should be free of explosive dangerous substances and no serious molds;
d) Grounding should meet the requirements of 5.8 in GB/T 2887-2011.
4.1.2 Special environmental conditions
The special environmental conditions of the place where the device is used should meet the following requirements.
a) The device should have the ability to resist salt spray corrosion and meet the salt spray corrosion test requirements specified in 5.3.2;
b) The device should have the ability to withstand solar radiation and meet the solar radiation test requirements specified in 5.3.4;
c) Other environmental conditions beyond 4.1.1 shall be determined by the user and the manufacturer.
4.2 Rated electrical parameters
4.2.1 DC working power supply
The DC working power supply of the device shall meet the following requirements.
a) Rated voltage. 220V, 110V (device should be adaptive);
b) Allowable deviation. -20%~ 15%;
c) Ripple coefficient. not more than 5%.
4.2.2 Incentive
The excitation amount of the device shall comply with the regulations in 4.2.2 of DL/T 478-2013.
4.2.3 Switch input and output
The switch input and output of the device meet the following requirements.
a) The input power of the device should be compatible with DC 220V and 110V in hardware;
b) Other requirements for the switch input and output of the device shall comply with the provisions of DL/T 478-2013 in 4.5.
4.3 Accuracy and variation
The accuracy and variation of the device should comply with the provisions of 4.3 in DL/T 478-2013.
4.4 General requirements
4.4.1 The device shall meet the requirements of "reliability, selectivity, sensitivity, and quick action" of relay protection.
4.4.2 The device should have a complete self-checking function and an alarm function that can reflect the fault and abnormal status of the protected equipment.
4.4.3 The device shall not rely on an external time synchronization system to realize its protection function.
4.4.4 Except for the export relay, any damage to any component of the device shall not cause the protection to malfunction and trip.
4.4.5 The device shall adopt the method of direct cable sampling and direct cable trip, and the input information of the interval such as the position of the circuit breaker received by the device shall be adopted.
Use the cable connection method to jump the bus coupler (segment) across the interval and the start, lock, joint trip, trip and close signals with other devices through the facing
The GOOSE signal of the general object is transmitted in the protection private network.
4.4.6 The device has a communication interface connected with the intelligent management unit, etc., and the communication protocol should comply with DL/T 860 (all parts); communication network
The configuration, model and service of the system and system shall comply with GB/T 32890-2016.When the device is connected to different networks, independent data should be used
Interface controller.
4.4.7 When the intelligent management unit is abnormal, the realization of the device protection function should not be affected.
4.4.8 The device shall be powered by an independent DC. When the DC voltage disappears, the device should not malfunction. The working voltage of DC power supply is 80%~
When changing within 115% of the rated value, the device should work correctly. When the DC power supply is restored (including slowly restored) to 80% of the rated value, the direct current
The current inverter power supply should be able to start automatically. When the ripple factor of the DC power supply is ≤5%, the device should work correctly. Pull the DC power supply and plug the fuse
When repeated breakdown sparks occur, the device should not malfunction. Various abnormal conditions (such as short circuit, disconnection, grounding, etc.) in the DC power circuit
The device should not malfunction.
4.4.9 When the device is powered on and restarted, information should not be sent by mistake. After the device's DC power supply disappears, all recorded information should not be lost.
4.4.10 The device shall support one-click backup and download of the intelligent management unit, upload of status data, fixed value management, report and log query, wave recording and adjustment
Remote management such as reading.
4.4.11 The basic principles of device information output are as follows.
a) The device information output should comply with DL/T 1782 Substation Relay Protection Information Specification;
b) The device printing information and device display information description should be consistent, and the application semantics of the background and telecontrol information should be consistent;
c) The device should provide information reflecting its own health status, including the internal working environment of the device, hardware working status, software operating status,
Communication status (including internal communication status and communication status between devices), etc.;
d) Refer to Appendix A and Appendix B for device information output content and information description.
4.4.12 The device should support remote operation. When operating remotely, there should be two or more indications corresponding to changes.
4.4.13 The device shall have a unique equipment identification code, which shall not be changed during the life cycle of the device.
4.4.14 The device interface shall meet the following requirements.
a) The device interface adopts a dedicated electrical connector and a dedicated optical fiber connector, and the external connection is realized through the prefabricated cable and the prefabricated optical cable;
b) Electrical connectors and optical fiber connectors should have unique marks, and the marks should be clear, durable and easy to observe;
c) Each connector of the device should have physical anti-misplugging measures;
d) The cross-sectional area of the core of the electrical connector. Except for the AC current of 2.5mm2, the rest are not less than 1.5mm2; the core diameter of the optical connector. single
Mode 9/125μm, multimode 62.5/125μm.
4.4.15 The optical fiber interface of the device shall meet the following requirements.
a) Fiber type. multimode fiber;
b) Fiber core diameter. 62.5/125μm;
c) Light wavelength. 1310nm or 850nm;
d) Optical fiber transmission power and receiving sensitivity.
1) Optical fiber with optical wavelength of 1310nm (100M).
Optical fiber transmission power. -20dBm~-14dBm; optical receiving sensitivity. -31dBm~-14dBm;
2) Optical fiber with wavelength of 850nm (time alignment).
Optical fiber transmission power. -19dBm~-10dBm; optical receiving sensitivity. -24dBm~-10dBm.
4.4.16 The optical fiber interface of longitudinal communication of the device shall meet the following requirements.
a) Fiber type. single-mode fiber;
b) Fiber core diameter. 9/125μm;
c) Light wavelength. 1310nm or 1550nm;
d) Optical fiber transmission power and receiving sensitivity.
1) Optical fiber with light wavelength of 1310nm.
Optical fiber transmission power. >-15dBm; optical receiving sensitivity. ≤-34dBm;
2) 1550nm optical fiber.
Optical fiber transmission power. >-10dBm; optical receiving sensitivity. ≤-34dBm.
4.4.17 The dedicated connector for the device shall meet the requirements of Table 1.Refer to Appendix A for the definition of dedicated connector terminals, and refer to the layout diagram
Appendix C, see Table 1 for the definition of the fiber core.
Table 1 110(66)kV conventional transformer access line protection special connector table
4.5 Technical principles
4.5.1 The device should have 3 indicator lights for operation, abnormality and action. Refer to Table 2 for indicator lights. The indicator light should meet the requirements of high brightness, no cross light,
Large viewing angle is required; the "running" indicator light should be standard green, and the "abnormal" and "action" indicator light should be standard red; within 5s of initial power-on,
The "abnormal" and "action" indicators began to flash synchronously to normal operation. No indication should appear except for power failure of the device or error in the indicator drive circuit
When the lights are all off.
4.5.2 The device shall support the operation functions of remotely throwing and retracting the soft pressure plate, modifying the setting value, switching the setting value area, and signal resetting. Remote cast and retreat soft pressure plate should
Adopt the option control before operation with enhanced safety, and the remote reset device should adopt the direct control of conventional safety, remotely modify the fixed value and switch the fixed value
The district should adopt fixed-value services.
4.5.3 The device should support device information (device hardware information, device software version information), fixed value area code and fixed value (operating fixed value area and non-operating fixed value area).
Set value area), log and report (send analog quantity, self-check information, abnormal alarm information, protection action event, switch value, pressure plate status, device
Log information) and record wave file upload function.
4.5.4 All functional pressure plates of the device adopt soft pressure plates, and the device should save the soft pressure plate on and off state.
4.5.5 Except for the maintenance quality level of the soft plate itself, which is fixed at 0, the maintenance quality level of other information is consistent with the maintenance status of the device.
4.5.6 When the device itself is commissioned to overhaul the soft platen, and the received data does not have an overhaul position, the device should not light up the warning light and should not send it to "GOOSE overhaul"
Inconsistent" displacement information. The device itself has not been inspected and repaired, and when the received data has an inspection position, put it in the corresponding receiving soft plate.
The configuration should send the "GOOSE overhaul inconsistency" displacement information.
4.5.7 The device should record information such as remote operation and switch displacement.
4.5.8 The configuration file of the device can only be downloaded when the repair soft plate is put in. During the downloading process of the device configuration, configuration verification should be provided
Features.
4.5.9 The time scale carried by the station control layer data sent to the device should be in the standard zero time zone, and should not be in the local time zone.
4.5.10 The device should be equipped with a hardware clock circuit. After the DC power supply disappears, the hardware clock should work normally.
4.5.11 The device shall have the sampling value (SV), GOOSE and manufacturing message specification (MMS) output to the local protection private network.
Features.
4.5.12 The device should support the optical fiber IRIG-B code time synchronization function, and should support 1588 time synchronization. The time synchronization accuracy error should not be greater than 1ms.
4.5.13 The SV sampling value output by the device shall meet the following requirements.
a) It has the ability to output SV data at a sampling rate of 4kHz, and the output protocol adopts DL/T 860.92;
b) Realize the sampling synchronization function, after the external synchronization signal disappears, continue to meet the 4μs synchronization accuracy requirements for at least 10 minutes;
c) The device should ensure the synchronization of the output SV data, and the synchronization accuracy error should not exceed ±1μs.
4.5.14 The device receiving and sending GOOSE shall meet the following requirements.
a) The action time of the device from receiving the protective tripping and closing GOOSE command to the device tripping and closing relay contact outlet should not be
Greater than 10ms;
b) The time delay from the hard switch-in displacement to the corresponding GOOSE signal (excluding anti-shake time) should not be greater than 5ms.
4.6 Technical performance
4.6.1 Longitudinal differential protection
The technical performance requirements of the longitudinal differential protection are as follows.
a) The error of the current setting value of the longitudinal differential protection is not more than ±5% or ±0.02IN;
b) Action time (including export relay, excluding channel transmission time). 110(66)kV line (2 times the setting value) should not be greater than 40ms.
4.6.2 Distance protection
The technical performance requirements of distance protection are as follows.
a) The accuracy error of the fixed value action of the distance Ⅰ, Ⅱ and Ⅲ section is not more than ±5% or ±0.05Ω;
b) Action time (including export relay).
---Phase distance I section (0.7 times the setting value). not more than 30ms;
--- Grounding distance section I (0.7 times the setting value). not more than 30ms;
---Phase distance Ⅱ and Ⅲ (0.7 times the setting value). the error is not more than ±1% or 40ms;
---Grounding distance Ⅱ, Ⅲ section (0.7 times the setting value). the error is not more than ±1% or 40ms;
c) Temporary overrun of distance section I. no more than ±5%.
4.6.3 Zero sequence protection
The technical performance requirements of zero sequence protection are as follows.
a) The error of the zero sequence protection current setting value is not more than ±5% or ±0.02IN;
b) The inverse time characteristic of zero sequence current protection adopts the IEC standard inverse time characteristic curve;
c) Action time (including export relay).
---Zero sequence overcurrent section I (1.2 times the setting value). not more than 30ms;
---Zero sequence overcurrent Ⅱ, Ⅲ, Ⅳ section (1.2 times the setting value). the error is not more than ±1% or 40ms;
d) The action area of the zero-sequence power directional element should meet the design regulations, and the directional element should have sensitivity when the zero-sequence voltage is higher than 1V.
4.6.4 Overcurrent protection
The technical performance requirements of overcurrent protection are as follows.
a) The error of the overcurrent protection current setting value is not more than ±5% or ±0.02IN;
b) Action time (including export relay).
---Overcurrent section I (1.2 times the setting value). not more than 30ms;
---Overcurrent section II and III (1.2 times the setting value). the error is not more than ±1% or 40ms.
4.6.5 Reclosing function
The technical performance requirements of the reclosing function are as follows.
a) The reclosing time error is not more than ±1% or 40ms;
b) The error of the closing angle at the same time is not more than ±3°.
4.6.6 Fault location accuracy
The technical performance requirements of the fault point ranging accuracy are as follows.
a) Allowable deviation. should meet the requirements of 4.1.12.3 in GB/T 14285-2006;
b) Test conditions. single-sided power supply, metallic three-phase short circuit.
4.7 Requirements for related equipment
4.7.1 Requirements for channel transmission equipment
The channel equipment for transmitting information should meet the requirements of transmission time and reliability, and its transmission time should meet the requirements of GB/T 14285-2006
Requirements.
4.7.2 Requirements for prefabricated cables
The prefabricated cable meets the following requirements.
a) The cable connector adopts a pin-type threaded multi-core circular connector;
b) The termination method of the current loop of the cable connector should be connected by cold crimping;
c) The cross-section of each loop core of the cable connector should meet the requirements of 4.4.14d);
d) The protection level of the prefabricated cable should meet the requirements of IP66, and its operating environment should meet the requirements of 4.1.1.
e) The cable socket should be equipped with matching dust cover.
4.7.3 Requirements for prefabricated optical cables
The prefabricated optical cable meets the following requirements.
a) The optical cable connector adopts a pin-type threaded multi-core circular connector;
b) The appearance of the prefabricated optical cable should be uniform in color and free of defects such as blisters, dents, cracks, etc.;
c) The prefabricated optical cable shall meet the requirements of GB/T 12357 (all parts) and GB/T 9771 (all parts), and shall meet the requirements of multi-mode
A1b (62.5/125μm) and single-mode B1 (9/125μm) signal transmission;
d) The insertion loss of the multi-core optical fiber connector should be less than 0.8dB;
e) The protection level of the prefabricated optical cable should meet the requirements of IP66, and its operating environment should meet the requirements of 4.1.1.
f) The optical cable socket should be equipped with a matching dust cover.
4.8 Power consumption
The power consumption of the device meets the following regulations.
a) The power consumption of the AC loop of the device should comply with the regulations in 4.7 of DL/T 478-2013;
b) The DC circuit power consumption of the device should not exceed 30W, and the power consumption after the protection action should not exceed 40W.
4.9 Overload capacity
The overload capacity of the device shall comply with the provisions of 4.6 in DL/T 478-2013.
4.10 Insulation requirements
The device should be able to withstand the impulse voltage test, dielectric strength test and insulation resistance measurement requirements specified in 5.10.The solid insulation of the device should
Meet the requirements for electrical clearance and creepage distance specified in Table C.6 of GB/T 14598.27-2017.
4.11 Humidity and heat resistance
The device should be able to withstand the constant damp heat test or alternating damp heat test specified in 6.12.3 of GB/T 14598.2-2011.
4.12 Protective connection impedance
The protection connection impedance of the device shall comply with the provisions of 6.12.2.4 in GB/T 14598.2-2011.
4.13 Mechanical requirements
The device should be able to withstand the mechanical vibrations, shocks and collisions that often occur during actual transportation and operation, and be suitable for normal transportation and operation. for
Therefore, it should be able to withstand vibrations that are not greater than the severity level specified in GB/T 11287, and the severity level specified in GB/T 14537 is
Level 2 shock and collision.
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