JB/T 6939.1-1993 Technical specifications for controllers for small wind turbines JB/T6939.1-1993 Standard download and decompression password: www.bzxz.net

F11
JB
Mechanical Industry Standard of the People's Republic of China
JB/T 6939.193
Controller for small wind turbines
Technical conditions||tt| |Released on 1993-07-29
Ministry of Machinery Industry of the People's Republic of China
Released
Implemented on 1994-01-01
Machinery Industry Standards of the People's Republic of China||tt| |Controller for small wind turbines
Technical conditions
1 Subject content and scope of application
JB/T 6939.193
This standard specifies rechargeable small wind turbines Classification, technical requirements, inspection rules, marking, packaging, transportation and storage of controllers.
This standard applies to controllers for rechargeable small wind turbines (hereinafter referred to as controllers). 2 Reference standards
JB/T5673
General technical conditions for painting of agricultural and forestry tractors and machinery JB/T6939.2 Test methods for controllers for small wind turbines 3 Classification of controllers
3.1 Controllers are divided into:
a according to their functional characteristics. Simple type: A product that has the function of indicating overvoltage, undervoltage and normal operation of the battery pack, and can transmit the electric energy of the distribution unit to the electrical appliances:
b. Automatic protection type: it can indicate overvoltage, undervoltage and normal operation of the battery pack. It has an automatic protection function in case of under-voltage and can transmit the power of the supporting unit to the electrical products.
3.2 The controller is divided into DC input type according to the installation position of the rectifier device: a product matching the small wind turbine generator with the rectifier device installed directly on the generator: a.
b. AC input type: The rectifier is installed inside the controller. 4 Technical requirements
4.1 The controller should comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.2 The controller should be able to work continuously and reliably under the following conditions; a. Ambient temperature: -20~+40℃,
b. Air relative humidity: no more than 85% (at 25℃). 4.3 The simple controller should have an indicator device for overvoltage and undervoltage of the battery pack, and its overvoltage and undervoltage indication values ??should comply with the provisions of the operating voltage in Table 1.
4.4 Automatic protection control The overvoltage and undervoltage protection performance of the device should comply with the requirements in Table 1. Approved by the Ministry of Machinery Industry on 1993-07-29
Implemented on 1994-01-01
1
4.5
4.6
4.7
battery Group
voltage series
12
24
36
110
action voltage
15. 6||tt ||31.2
46.8
143.0
JB/T6939.1-93
Table 1
item
Overvoltage value|| tt||Recovery voltage
14.6±0.2
29.3±0.5
43.9±0. 7
134.2±2.2
mesh
Operating voltage
10.5
21.0
31.5
96.3
under voltage value
recovery voltage
11.5±0.2| |tt||22.9±0.5
34. 4± 0. 7
105.0±2.2
V
The voltage series is not included in the battery pack in Table 1, The overvoltage and undervoltage values ??of each single battery should be calculated according to the provisions of Table 2. Table 2
over
operating voltage
2. 60
voltage
value
recovery voltage
2. 44 ± 0. 04
The automatic protection controller should have the battery pack voltage indication function, the operating voltage
1.75
under
value
voltage|| tt | Table 3
Voltage adjustment book
%
≤0.1
Note: The ripple current refers to the peak-to-peak value.
Current Regulation%
≤0.5
Ripple Voltage
mv.
Sso
4.8 pairs with regulated output short circuit The short-circuit protection action time of the controller with protection function should not be greater than 0.5s, and the V
4.9 controller should run for 5 minutes under the following two overload conditions, and its main electrical performance should still comply with Article 4.3 of this standard or The provisions of Article 4.4:
input power is 2 times the rated output power of the supporting unit: a.
h.
The output power is 1.5 times the rated output power of the supporting unit. 4.10 After the controller is subjected to the vibration test in accordance with Article 4.9 of JB/T6939.2, its main electrical performance should still comply with the provisions of Article 4.3 or Article 4.4 of this standard.
4.11
The average working time before the first failure of the controller should be not less than 1500h4.12
5
6
The painting of the controller should Comply with the regulations of JB/T5673. Test method
The test of the controller shall be carried out in accordance with the provisions of JB/T6939.2. Inspection rules bzxz.net
The inspection of the controller is divided into factory inspection and type inspection, 6.1 Factory inspection
6.1.1 The controller should be remotely inspected for factory inspection, and passed the inspection by the quality inspection department, and the product certificate should be attached. Before leaving the factory 6.1.2 The items of factory inspection shall be carried out in accordance with the requirements of Articles 4.3 to 4.6 and Article 4.12 of this standard. 6.1.3 During the factory inspection, if all performance indicators meet the regulations, it will be judged as qualified. If there are any unqualified items, they will be re-inspected after repair. Those that pass the repair will be judged as qualified. Those that fail will be judged as unqualified. 2
6. 2
Type inspection
JB/T6939.193
When the product encounters the following conditions, type inspection should be carried out, whether it is a new product or an old product Trial molding appraisal for factory transfer: b.
c.
d.
e.
6.2.1
6. 2. 2
For finalized products, when the design, process or material changes are enough to cause changes in certain properties and parameters of the product: when products that have been out of production for more than three years resume production; the results of the factory inspection are different from the last type inspection When there is a big difference; when the national quality supervision agency proposes type inspection requirements. The collars for type inspection shall be carried out item by item according to the items stipulated in Articles 4.2 to 4.12 of this standard. The prototypes for type inspection shall be randomly selected from the batch of qualified products. When the batch N = 9 to 15, one-time sampling shall be adopted for positive tape inspection. Plan, its quality failure classification and sampling plan are shown in Table 4. Table 4
Unqualified classification
Unqualified items
Number of meshes
Items
Project
Plan
Judgment
Defined
Rules
Judgment rules
6.2.3
a.
b.
c.|| tt||Check Level
Sample Code
Sample Size
AQL
Ac
Re
A
Passed Medical test
Long term pressure test
Overload test
3
4.0
0
1
B||tt ||Voltage indication function test
Voltage regulation rate test
Current regulation rate test
Ripple voltage test
Regulated output short-circuit protection test||tt| |High temperature test
Low temperature test
Alarm test
Average working time before first failure
Coating quality
10
General inspection Level 1
B
40
3
4
When the accumulated unqualified number of the inspected category is less than or equal to the qualified judgment number Ac, the whole The batch of products was judged to be qualified in this category. When the cumulative number of unqualified products in the inspected category is greater than or equal to the unqualified number Re, the entire batch of products will be judged to be unqualified in that category. When the product is judged to be qualified in both categories A and B.The whole batch of products is judged as qualified, otherwise it is judged as unqualified. Marking, packaging, transportation, storage
7. 1
The markings on the product packaging boxes should be complete and clear. 7. 1. 1
a.
b.
e.
d.
The product markings should include the following:
Manufacturer name:
Product name,
Product model or mark:
Factory number or factory date
3
7. 1.2
b.
c.
d.
e.
f.
g
7. 2
The packaging box label should include the following contents:
Product name, specification:
Product quantity;
Gross weight of packaging box, kg:
Delivery location:
Name of receiving station, receiving unit:
JB/T6939.193
Precautions mark: "Handle with care", "Upward", "Moisture-proof" and other words or symbols; manufacturer's name.
The product can be packaged in a basin or box. The product packaging should ensure that the product is not damaged during circulation. 7. 2. 1
7. 2. 2
a.
b.
c.
Product packaging should comply with the relevant regulations of the transportation department. The packaging box (box) should carry the following documents: Packing list:
Instruction manual:
Inspection certificate.
The product should be suitable for general road and rail transportation. 7.3
7.4
8
Packaged products should be stored in clean, dry and well-ventilated warehouses. Quality Assurance Period
If the user complies with the installation and use rules of the controller, within 12 months from the date of purchase, if the product cannot work normally due to poor manufacturing quality, the manufacturer should repair or replace it for the user free of charge. Additional Notes:
This standard was proposed and coordinated by the Hohhot High-speed Animal Husbandry Machinery Research Institute of the Ministry of Machinery Industry, and this standard was drafted by the Hohhot Animal Husbandry Machinery Research Institute. The main drafter of this standard is Hada.
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