This specification specifies the general technical requirements, quality assurance regulations and delivery preparation for ground warning guidance radar antenna drive controllers. This specification applies to antenna AC drive controllers with a control power of no more than 55KW used in ground warning guidance radars. SJ 20796-2001 General Specification for Ground Warning Guidance Radar Antenna Drive Controllers SJ20796-2001 Standard download decompression password: www.bzxz.net

Military Standard of the Electronic Industry of the People's Republic of China FL5840
SJ 20796—2001
General specification for driving controller for antenna of ground warning and director rader2001-12-27issuedwww.bzxz.net
2002-01-01implemented
Approved by the Ministry of Information Industry of the People's Republic of China1Scope
Subject content
Scope of application
Reference documents
Quality identification
Structure,
Appearance quality
Marking,
Maintainability.
Safety
Interchangeability
Performance characteristics
Environmental requirements
Continuous working time
Electromagnetic compatibility.
Reliability
Quality assurance regulations,
Inspection responsibility,
Inspection classification
Inspection conditions,
Identification inspection
Quality consistency inspection
Packaging inspection,
Inspection method.
Delivery preparation.
Sealing and packaging
Transportation and storage
5.4 Marking
6 Notes
6.1 Intended use
6.2 Contents of order documents
6.3 Symbols
Appendix A Defect classification (supplement)
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1 Scope
People's Republic of China Electronic Industry Military Standard General Specification for Driving Controller for Antenna of Ground Warning and Director Radar
General specification for driving controller for antenna of ground warning and director radar1.1 Subject content
SJ20796—2001
This specification specifies the general technical requirements, quality assurance provisions and delivery preparation for antenna driving controller for ground warning and director radar. 1.2 Scope of application
This specification applies to antenna AC driving controller (hereinafter referred to as controller) with a control power not exceeding 55kW used in ground warning and director radar.
1.3 Classification
1.3.1 Classification by control mode
a. Local control controller: a controller that can only be operated manually locally: b. Remote control/local control controller: a controller with a remote control interface that can be operated manually locally or switched to a controller that can be operated remotely.
1.3.2 Classification by application location
a Class A controller: mainly used indoors or in shelters; b Class B controller: mainly used outdoors or outside shelters. 1.3.3 Classification by control power
According to the control power of the controller, it is divided into 11 levels: 2.2, 4, 7.5, 11, 15, 18.5, 22, 30, 37, 45, 55kW. 2 References
GB/T998-82 Basic test methods for low-voltage electrical appliances GB14048.4-93 Low-voltage switchgear and control equipment Low-voltage electromechanical contactors and motor starters GJB74A-98 General specification for military ground radar GJB145A-93 Specification for protective packaging
5 General principles for environmental test methods for military equipment
GJB150.1-86
GJB150.3-86
GJB150.4-86
GJ B150.9-86
GJB150.10-86
GJB150.16-86
Environmental test methods for military equipmentHigh temperature testEnvironmental test methods for military equipmentLow temperature testEnvironmental test methods for military equipment
Wet heat test
Environmental test methods for military equipment
Mold test
Environmental test methods for military equipment
Published by the Ministry of Information Industry of the People's Republic of China on December 27, 2001Vibration test
2 002-01-01 Implementation
SJ20796—2001
GJB150.18-86 Environmental test methods for military equipment Impact test GJB151A-97 Requirements for electromagnetic emission and sensitivity of military equipment and subsystems GJB152A-97 Measurement of electromagnetic emission and sensitivity of military equipment and subsystems GJB179A-96 Counting sampling inspection procedures and tables GJB450-88 General outline for reliability of equipment development and production GJB899-90 Reliability identification and acceptance test GJ B1182-91 Protective packaging and packing level GJB1320.1-91 AC motor starter for ships GJB1765-93 Military material packaging mark
GJB2072-94 Maintainability test and evaluation
GJB271-96 Military transport packaging test method GJB2825-97 Military radar cabinet, plug-in box, plug-in modular requirements 3 Requirements
3.1 Qualification appraisal
Products submitted according to this specification should be products that have been qualified or approved. 3.2 Design
3.2.1 Canability
The reliability design of the controller shall comply with the provisions of GJB450. 3.2.2 Maintainability
The maintainability design of the controller shall comply with the provisions of Article 3.2.3 of GJB74A. 3.2.3 Materials
In addition to complying with the provisions of Article 3.2.11 of GJB74A, the selection of materials shall also comply with the following provisions. 3.2.3.1 Insulating materials
The insulating materials used in the controller shall be durable, flame-retardant, moisture-resistant and resistant. 3.2.3.2 Wires
The minimum cross-sectional area of ​​the main circuit wires of the controller shall comply with the provisions of Table 1. 3.2.3.3 Current-carrying connecting elements
The current-carrying bolts, screws and other current-carrying elements and connectors of the controller shall be made of copper materials and shall have sufficient strength and corrosion resistance. 3.2.3.4 Protective grounding terminal
The protective grounding terminal shall be made of copper materials and shall have appropriate anti-corrosion measures. 3.2.4 Protective grounding
The controller shall have reliable protective grounding measures. The effectiveness of grounding must be ensured in both normal and fault conditions, that is, the exposed non-conductive metal parts and metal casing are at zero potential. 2
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Power level
Grounding conductor cross section
SJ20796—2001
Rated current
The minimum cross-sectional area of ​​the protective grounding conductor shall comply with the provisions of Table 2. Table 2
Main circuit conductor (copper) cross-sectional area
3.2.4.2 Grounding screw
Main circuit conductor (copper) cross-sectional area
Grounding conductor (copper) cross-sectional area
The controller shall be equipped with a special protective grounding screw in a place that is convenient for wiring. Unless otherwise specified, the minimum size of the grounding screw shall comply with the provisions of Table 3.
Rated current
202hl)
tp<2h9
tp<2min')
2st≤10s
p<2h3)
Note: 1) The operating time when the ambient temperature is 20℃ and the three-phase circuit is loaded in a balanced manner: 2) The hot state refers to heating to a stable state with the current in Project 1: 3) The operating time when the ambient temperature is 20℃ and the three-phase circuit is disconnected (with phase disconnection protection) 3.12.5
Making and breaking capacity (see Article 4.7.15) The rated making and breaking capacity of the controller shall comply with the provisions of Table 7. Table 7
Rated current
171100
1,>100
Note: 1) The connection condition is expressed by effective value; 2) COS charging tolerance +0.05:
3) [Minimum value is 1000A;
4) 1. Minimum value is 800A.
3.12.6 Temperature rise (see 4.7.16)
Connection)
The temperature rise of each part of the controller shall not exceed the provisions of Table 8. 3.13 Environmental requirements
Unless otherwise specified in the contract, the controller shall be able to withstand the following environmental conditions. 3.13.1 Low temperature
3.13.1.1 Class A controller
The minimum working environment temperature is -10°C and the minimum storage temperature is -50°C. 3.13.1.2 Class B controllers
The minimum operating temperature is -35°C and the minimum storage temperature is -50C.
Test conditions
"Hot"
Preheat with 1 times the set
current for 2h
3.13.2 High temperature
Type of components and materials
SJ20796—2001
Class A insulating materials
Class B insulating materials
Insulated coils
Contacts in the air
Class F insulating materials
Class H insulating materials
Silver or silver-plated
Other metals
Metal parts in contact with insulating materials
Terminals connected to external insulated conductorsManually operated parts
Metal materials
Insulating materials
Limited to not damaging adjacent parts
Limited to not harming adjacent components
Limited to not harming adjacent components
The maximum working environment temperature is 50°C, and the maximum storage temperature is 70°C. 3.13.3 Shock
Measurement method
Resistance method
Thermocouple method
The controller should be able to withstand the shock test specified in 4.7.19. After the shock test, there should be no mechanical damage, malfunction and other electrical faults. Its operating performance should comply with the provisions of Article 3.12.3. 3.13.4 Vibration
The controller should be able to withstand the vibration test of Category 1 or Category 8 specified in Chapter 2 of GJB150.16. After the vibration test, there should be no mechanical damage, malfunction and other electrical faults. Its operating performance should comply with the provisions of Article 3.12.3. 3.13.5 Damp heat
Control The controller should be able to withstand the alternating damp heat test of 95% relative humidity, 60°C high temperature and high humidity: 95% relative humidity, 30°C low temperature and high humidity, five cycles totaling 120 hours. 3.13.6 Mold
The components, parts and materials of the controller should be anti-mold. The test conditions shall be in accordance with the provisions of Chapter 2 of GJB150.10, and the degree of extension shall be specified by the product specifications.
3.14 Continuous working time
Unless otherwise specified in the contract, the continuous working time of the controller shall not be less than 200 hours. 3.15 Electromagnetic compatibility
The electromagnetic compatibility requirements of the controller shall be specified by the product specifications in accordance with the relevant provisions of GJB151A. 3.16 Reliability
3.16.1 Mean time between failures (MTBF)) The average The average failure interval is specified by the product specification. 3.16.2 Mechanical life
The mechanical life of the controller is the number of no-load operations before any mechanical parts are repaired or replaced. The mechanical life should not be less than 1×10° times.
3.16.3 Electrical life
The electrical life of the controller is the number of loaded operations that can be withstood without repair or replacement of parts under the conditions specified in Table 9. 8
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4 Quality Assurance Provisions
4.1 Inspection responsibilities
SJ20796—2001
COS (swimming)
COSt (submerged)
Number of operations
Unless otherwise specified in the contract, the contractor shall be responsible for completing all inspections specified in this specification. If necessary, the ordering party or the superior appraisal agency has the right to inspect any inspection item described in the specification. 4.1.1 Qualified Products
All products must meet all requirements of Chapter 3 and Chapter 5 of the Specification. The inspections specified in this Specification shall become an integral part of the Contractor's overall inspection system or quality program. If the contract includes inspection requirements not specified in this Specification, the Contractor shall also ensure that the products submitted for acceptance meet the contract requirements. Quality consistency sampling does not allow the submission of products that are known to be defective, nor can the ordering party be required to accept defective products.
4.2 Inspection Classification
The inspections specified in this Specification are divided into
Identification inspections:
b. Quality consistency inspections.
4.3 Inspection conditions
Unless otherwise specified, the inspection shall be carried out under the "standard atmospheric conditions for testing" specified in GJB150.1. The requirements for instruments and meters shall comply with the provisions of Article 3.3 of GJB150.1. 4.4 Qualification inspection
It is generally carried out when the product design and production are finalized. However, when there are major changes in the main design, process, components and materials of the product, which affect the important performance of the product and make the original identification conclusion no longer valid, the identification inspection should also be carried out. The identification inspection should be carried out in a laboratory or test site (institute) approved by the ordering party or the superior identification agency. 4.4.1 Number of samples
The number of samples for identification inspection shall not be less than 1. 4.4.2 Inspection items
The identification inspection items are shown in Table 10, and the product specifications are allowed to tailor the inspection items. The inspection order is specified by the product specifications. 4.4.3 Qualification criteria
When all inspection items meet the requirements of Chapter 3 and Chapter 5, the identification inspection is judged to be qualified. If any inspection item does not meet the specified requirements, the inspection should be suspended. The contractor should analyze the unqualified items, find out the causes of the defects and take corrective measures, and then continue to inspect the unqualified items and related items. If all the inspection items meet the specified requirements, the identification inspection is still judged to be qualified; if there is still an item that does not meet the specified requirements after continued inspection, it is judged to be unqualified.
4.4.4 Maintenance of qualified identification
In order to maintain qualified identification, the contractor shall submit test data according to the requirements of the superior identification agency or the ordering party. 4.5 Quality consistency inspection
Inspection grouping
SJ20796—2001
Quality consistency inspection is divided into groups A, B, C, and D. Batch composition and submission
Batch composition and submission shall comply with the provisions of Article 5.4.6 of GJB179A. 4.5.3 Defect classification
Defect classification is specified by product specifications.
4.5.4 Group A inspection
Sampling plan
One hundred percent of the products submitted by the contractor for inspection shall be inspected. 4.5.4.2 Inspection items
Product specifications are allowed to tailor the inspection items. Inspection shall be carried out according to the items specified in Table 10,
Appearance quality
Maintainability
Safety
Interchangeability
Insulation resistance
Dielectric properties
Operation performance
Overload protection
Switching and breaking capacity
Continuous working time
Electromagnetic compatibility
Visibility
Quality consistency inspection
Note: The symbol "○" in the table indicates a required item: 10
" indicates an optional item:
TKA
Required
Chapter number
5.1,5.2.1
-" indicates that the item is not to be done.
Testing Party
Legal Article No.
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