JB/T 6939.2-2004 Controllers for off-grid wind turbines Part 2: Test methods
Some standard content:
ICS27.180
F11
JB
Mechanical Industry Standard of the People's Republic of China
JB/T6939.2—2004
replaces JB/T6939.2- -1993
Controller for off-grid wind turbine generator system
Part 2: Test method
Controller of off -grid wind turbine generator systemPart2:Testmethod
2004- Released on 02-10
Implemented on 2004-06-01
Foreword released by the National Development and Reform Commission of the People's Republic of China
Scope
3
3|| tt||4
5
5.1
Normative reference documents
Abbreviations,
Test conditions
Test content and tests Method
Overvoltage test
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
5.13
5.14
5.15
Under voltage Test
Overload test.
Battery pack voltage indication function test
Voltage regulation test
Current regulation test.
Ripple voltage test|| tt||Protection test
Programmed controller constant current and constant voltage charging test no-load loss test
Voltage drop test of charge and discharge circuit
Controller temperature compensation test| |tt||Low temperature test
High temperature test..
Noise measurement,
Vibration and free drop test
5.16
5.17 Before the first teaching Determination of working time 6 test report
item
Appendix A (normative appendix) Test instruments, meters and accuracy levels Table 1 Controller test record sheet
Table 2 Controller test Summary record table
Table A.1 Instruments and instruments used in controller testing and their accuracy levels, times
JB/T6939.2—2004
JB/T6939.2—2004
Foreword
JB/T6939 "Controller for Off-grid Wind Turbine Sets" is divided into two parts: Part 1: Technical conditions:
Part 2: Test method.
This part is Part 2 of JB/T6939
This part is a revision of JB/T6939.21993 "Test Methods for Controllers for Small Wind Turbine Sets": GB17646-1998 was referenced when revising Compared with JB/T6939.2-1993, the main changes in this part of standards such as "Small Wind Turbine Sets and Safety Requirements" and German Lloyd Wind Turbine Set Certification Specifications are as follows: Standardized test procedures:
-re Prepared schematic diagram for testing:
Added relevant content about AC input controller test methods: - Added 5.8, 5.9, 5.10, 5.11, 5.15 test content and methods: - Appendix A was modified to be normative appendix.
Appendix A of this section is a normative appendix.
This part is proposed by China Machinery Industry Federation. This part is under the jurisdiction of the National Wind Machinery Standardization Technical Committee. This part is drafted by the Hohhot Branch of the Chinese Academy of Agricultural Mechanization Sciences. The main drafters of this section: Li Qingshao, Guo Liheng. The previous versions of the standard replaced by this part are: JB/T 6939.2--1993.
11
1 Scope
JB/T6939.2—2004
Controllers for off-grid wind turbines Part 2: Test methods This part specifies the Test conditions, test content and test methods for charging controllers for grid-type wind turbines. This section is applicable to charging controllers for off-grid wind turbines whose swept area is less than 40m. 2 Normative reference documents
The provisions in the following documents become the provisions of this part through the reference of this part of JB/T6939. For dated reference documents, all subsequent amendments (excluding corrigenda) or revisions do not apply to this section. However, parties to an agreement based on this section are encouraged to study whether the latest versions of these documents can be used. For undated referenced documents, the latest version applies to this section. GB/T2423.12001 Environmental testing of electrical and electronic products Part 2: Test methods Test A: Low temperature (idtIEC60068-2-1:1990)
GB/T 2423.2—2001
60068-2-2 :1990)
GB/T 2423.8—1995
60068-2-32:1990)
GB/T2423.10—1995
(idt IEC 60068-2 -6:t982)
Environmental test for electrical and electronic products Part 2: Test method Test B: High temperature (idtIEC Environmental test for electrical and electronic products Part 2: Test method test Ed: Free fall (idtIEC Environmental test for electrical and electronic products Part 2: Test Methods Test Fc and Guidelines: Perturbation (sinusoidal) 5 Acoustic Sound Pressure Method Determination of Sound Power Level of Noise Source Using Envelope Measurement Surface Above Reflective Surface Simple Method GB/T 3768—1996
(eqv ISO 3746:1995)
JB/T6939.1—2004
Controllers for off-grid wind turbines Part 1: Technical conditions 3 Abbreviations
Controller off-grid Charging controller for grid-type wind turbines 4 test conditions
4.13
The test conditions of the controller should comply with the provisions of 6.1.2 in JB/T6939.1-2004 used in the test. The instruments and meters shall be within the validity period after passing the inspection by the measurement department. 4.3 The prototype used for testing shall comply with the provisions of Chapter 8 of JB/T6939.1-2004, 5. Test content and test methods.
5.1 Overvoltage test
5.1.1 Overvoltage test of DC input controller 5.1.1.1 The test is carried out with reference to the schematic diagram shown in Figure 1. 5.1.1.2 The test is carried out according to the following steps: | |tt||a) Adjust the DC stabilized power supply to adjust the DC output voltage (indicated value of V,) of the controller to the rated voltage value b) Slowly adjust the DC stabilized power supply so that the DC terminal of the controller gradually rises until the control Until the overvoltage protection device of the controller automatically activates, the voltage value indicated by the DC voltmeter Vz at this time is the overvoltage action voltage of the controller: c) Continue to slowly adjust the DC regulated power supply so that the voltage at the DC output terminal of the controller (the indicated value of V ) gradually decreases until the control overvoltage protection device automatically recovers. At this time, the voltage value indicated by the DC voltmeter V is the controller overvoltage recovery voltage: 1
JB/T6939.22004
Stream
Stabilized power supply
V
A
V,
Direct current voltmeter: A,| |tt||DC ammeter: S
Controller
Direct out
DC ammeter: Vs
Switch 1: Z
Wai 1||tt ||True current voltmeter:
Charging circuit adjustable electrical diagram.
d) Repeat the test three times, calculate the arithmetic mean value, and record the measured overvoltage action voltage and overvoltage recovery voltage of the controller in the record table 1. Record the test results in Record Table 2. 5.1.2 Overvoltage test of AC input type controller 5.1.2.1 Refer to the schematic diagram shown in Figure 2 for wiring. The instruments at the input end of the controller should be connected to the corresponding contacts in the controller. Controller
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Sanmian Exchange
Press phone
Performer
V
A
Complete liquid Unit
True flow shooting person
Shadow control unit
The demonstration is from the heart
DC voltmeter: A—-DC ammeter: V-DC voltmeter switch 1 :Z
-DC ammeter: S
5.1.2.2 The test procedure shall be carried out in accordance with the provisions of 5.1.1.2. 5.2 Undervoltage test
5.2.1 Undervoltage test for DC input controller 5.2.1.1 The wiring is carried out according to the schematic diagram shown in Figure 1. 5.2.1.2 The test shall be carried out in the following steps:
Figure 2
The charging circuit can be charged,
a) Adjust the DC regulated power supply to adjust the DC output voltage of the controller (the indicated value of V2) to the rated voltage value: b) Slowly adjust the DC regulated power supply to make the DC output voltage of the controller (the indicated value of V1) gradually decrease until the undervoltage protection device of the controller automatically operates. At this time, the voltage value indicated by the DC voltmeter V is the undervoltage operation voltage of the controller: c) Continue to slowly adjust the DC regulated power supply to make the DC output voltage of the controller (the indicated value of V2) gradually increase until the undervoltage protection device of the controller automatically recovers. At this time, the voltage value indicated by the DC voltmeter V is the undervoltage recovery voltage of the controller:
d) Repeat the test three times, calculate the arithmetic mean, and record the measured undervoltage operation voltage and undervoltage recovery voltage of the controller in Record Table 1: Record the test results in Record Table 2, 5.2.2 AC input controller undervoltage test 5.2.2.1 The test is connected according to the schematic diagram shown in Figure 2. 5.2.2.2 The test steps shall be carried out in accordance with the provisions of 5.2.1.2. 5.3 Overload test
5.3.1 Controller input overload test
5.3.1.1 The DC input controller test shall be wired according to the schematic diagram shown in Figure 1, and the AC input controller test shall be wired according to the schematic diagram shown in Figure 2.
2
5.3.1.2 The test is carried out in the following steps:
JB/T6939.2—2004
a) Adjust the regulated power supply and adjust the DC input voltage (V, indicated value) of the controller to the rated voltage value: b) Adjust the charging circuit load resistance Z so that the charging circuit load current is the rated value: c) Keep the charging circuit load resistance Z unchanged, continue to adjust the regulated power supply, so that the product reading of the DC input voltage (V, indicated value) and current (A, indicated value) of the controller (i.e. the input power of the controller) is not less than 2 times the rated output power of the controller, and observe whether the controller works normally for 5 minutes:
d) Record the test results in Record Table 2.
5.3.2 Controller output overload test
5.3.2.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 1, and the AC input type controller test should be wired according to the schematic diagram shown in Figure 2.
5.3.2.2 The test is carried out in the following steps:
a) Adjust the regulated power supply and adjust the DC input voltage (V, indicated value) of the controller to the rated voltage value; b) Adjust the charging circuit load resistance Z so that the charging load current is 1.5 times the rated output current for 5 minutes and observe whether the controller works normally;
c) Record the test results in Record Sheet 2.
5.4 Battery pack voltage indication function test
5.4.1 For the DC input type controller test, the wiring is carried out according to the schematic diagram shown in Figure 1. For the AC input type controller test, the wiring is carried out according to the schematic diagram shown in Figure 2. ,
5.4.2 The test is carried out according to the following steps
a) Adjust the regulated power supply so that the voltage at the DC output terminal of the controller (the indicated value of V2) varies within the normal operating voltage range: b) Check whether the voltage indication function of the controller battery pack can correctly indicate the normal operating status voltage: c) Record the test data in Record Sheet 1. Record the test results in Record Sheet 2. 5.5 Voltage Regulation Test
5.5.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 3, and the AC input type controller test should be wired according to the schematic diagram shown in Figure 4. The instrument at the input end of the controller should be connected to the corresponding contacts in the controller. Electronic circuit
?
DC
voltage power supply
?
DC current
controller
voltage regulator output
?
?
S27
R
voltage regulator output
A
Sy
VDC voltmeter: A—DC ammeter: V.DC voltmeter: ADC ammeter: S—switch 1Z—charging circuit adjustable resistance: V——DC voltmeter: A,——DC ammeter: S—switch 2: R—discharging circuit adjustable resistance. Figure 3
5.5.2 The test is carried out in the following steps:
a) Adjust the regulated power supply and adjust the voltage of the controller DC output terminal (the indicated value of V) to the rated voltage value: b) Adjust the discharge circuit load resistance R so that the discharge load current (the indicated value of A) is the rated value. At this time, measure the voltage value of the controller regulated output terminal (the indicated value of V) and record it in Record Table 1: 3
JB/T6939.2—2004
Three-pass alternating current
Construction voltage appliance
AC source shaft
Rectifier unit
Controller
DC tester
Electronic super-gravure
Control unit
Wei pressure output
DC output (V
S
VDC voltmeter: ADC ammeter: V||t t||-DC voltmeter: A
—DC ammeter: S, switch 1:
—DC voltmeter: A,
Z—Adjustable resistor of charging circuit: V,—
DC ammeter: S.-
Figure 4
Switch 2: R—Adjustable resistor of discharge circuit, c) The load R of the discharge circuit remains unchanged, and the regulated power supply is continued to be adjusted so that the output voltage of the controller (the indicated value of V) is +110% and -90% of the rated voltage respectively. The voltage of the regulated output terminal of the controller (V, the indicated value) is measured, and the data is recorded in Record Table 1:
α) The test is carried out three times, and the data of the group of data with the larger absolute value compared with the regulated output terminal voltage of the rated state controller is calculated as the arithmetic mean, and the data is recorded in Record Table 1, and the test results are recorded in Record Table 2. The voltage regulation rate is calculated according to formula (1):
S
Where:
bw-u
Ue
x100%
. —Voltage regulation rate, %:
U—The voltage at the regulated output terminal when the discharge circuit of the controller is rated current, in V: U—The voltage at the regulated output terminal when the DC output voltage of the controller fluctuates, in V. 5.6 Current regulation rate test
(1)
5.6.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 3, and the AC input type controller test should be wired according to the schematic diagram shown in Figure 4.
5.6.2 The test is carried out according to the following steps:
a) Adjust the voltage-stabilized power supply and adjust the voltage at the DC output terminal of the controller (V, indicated value) to the rated voltage value: b) Adjust the discharge circuit load resistance R so that the discharge load current (A, indicated value) is the rated value, and then measure the voltage value at the controller's voltage-stabilized output terminal (V, indicated value) and record it in Record Table 1: c) Then disconnect the discharge circuit load R so that the discharge load current (A, indicated value) is zero, measure the voltage at the controller's voltage-stabilized output terminal (V indicated value) at this time, and record the data in Record Table 1: d) Test three times, calculate the arithmetic mean, and record the test data in Record Table 1. Record the test results in Record Table 2. The current regulation rate is calculated according to formula (2):
8
Where:
4
Use-UswwW.bzxz.Net
U
X100
(2)
6,——Current regulation rate, %:
U—Voltage at the regulated output terminal when the discharge circuit of the controller is rated current, in units of VU——Voltage at the regulated output terminal when the discharge circuit current of the controller is zero, in units of V. 5.7 Ripple voltage test
JB/T6939.2—2004
5.7.1 The DC input type controller test shall be wired according to the schematic diagram shown in Figure 3, and the AC input type controller test shall be wired according to the schematic diagram shown in Figure 4. The voltmeter V in Figures 3 and 4 shall be replaced with an AC millivoltmeter or an electronic oscilloscope, and the other equipment shall remain unchanged. 5.7.2 The test is carried out according to the following steps
a) Adjust the regulated power supply and adjust the voltage of the DC output terminal of the controller (the indicated value of V) to the rated voltage value. b) Adjust the discharge circuit load resistor R so that the discharge circuit load current (the indicated value of As) is the rated value, and keep the DC output terminal voltage (the indicated value of V) at the rated voltage value. At this time, the ripple voltage measured by the AC millivoltmeter or electronic oscilloscope is the ripple voltage of the controller:
c) Conduct the test three times in a row, calculate the arithmetic mean, record the test data in Record Table 1, and record the test results in Record Table 2. 5.8 Protection test
5.8.1 Short-circuit protection test of regulated output terminal
5.8.1.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 3, and the AC input type controller test should be wired according to the schematic diagram shown in Figure 4.
5.8.1.2 The test is carried out according to the following steps
a) Adjust the regulated power supply and adjust the controller DC output voltage (indicated value of V) to the rated voltage value b) Adjust the discharge circuit load Resistor R makes the discharge circuit load current (the indicated value of A) reach the rated value: c) Short-circuit the controller's voltage-stabilizing output terminal and detect the short-circuit protection action time: d) Test five times in a row, calculate the arithmetic mean, and test Record the data in Record Table 1, and record the test results in Record Table 2. 5.8.2 Current limiting protection test
5.8.2.1 DC input controller test Wiring according to the schematic diagram shown in Figure 1, AC input The type controller test should be wired according to the schematic diagram shown in Figure 2.
5.8.2.2 The test should be carried out according to the following steps:
a) Adjust the regulated power supply and change the DC output voltage of the controller ( The indicated value of V2) is adjusted to the rated voltage value: b) Adjust the charging circuit load resistance Zp so that the controller input current (the indicated value of A,) reaches the allowed exposed overcurrent value of the equipment. Detect the controller current limiting protection action time: c) Test three times in a row, calculate the arithmetic average, record the test data in Record Table 1, and record the test results in Record Table 2. 5.8.3 Automatic protection type, program control type controller input and output terminal reverse connection protection test 5.8.3.1 Automatic protection type and program control type controller input end reverse connection protection test 5.8.3.1.1 Controller test refer to the schematic diagram shown in Figure 1 and Figure 2 for wiring. 5.8.3.1.2 The test is carried out according to the following steps
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (indicated value of Vz) to the rated voltage value b) Adjust the charging circuit load resistance Z so that The charging load current (indicated value of A2) is the rated value: c) Reversely connect the input terminal of the controller to the positive and negative poles of the power supply, and observe whether the protective measures for reverse connection of the positive and negative poles of the input terminal of the controller work: d) Check the test results Personnel Record Form 2.
5.8.3.2 Automatic protection type and program-controlled controller output end reverse connection protection test 5.8.3.2.1 Controller test refer to the schematic diagram shown in Figure 1 and Figure 2 for wiring. 5.8.3.2.2 The test is carried out according to the following steps
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (indicated value of Vz) to the rated voltage value b) Adjust the charging circuit load resistance Zr, Make the charging load current (the indicated value of Az) be the rated value: c) Connect the input terminal of the controller to the positive and negative poles of the power supply, and the output terminal to the positive and negative poles of the battery in reverse connection. Observe the protection measures for the reverse connection of the positive and negative poles at the output terminal of the controller. Whether it works: 5
JB/T6939.22004
d) Record the test results in Record Table 2.
5.8.4 Unloading electronic load switching protection test 5.8.4.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 3, and the AC input type controller test should be based on the principle shown in Figure 4 Figure for wiring.
5.8.4.2 The test is carried out as follows:
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (indicated value of Vz) to the overcharge voltage value: b) Detection The unloading electronic load starts to switch protection action time: c) Test five times in a row, calculate the arithmetic average, record the test data in Record Table 1, and record the test results in Record Table 2. 5.8.5 Temperature control protection test || tt||5.8.5.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 1, and the AC input type controller test should be wired according to the schematic diagram shown in Figure 2.
5.8.5.2 The test is carried out according to the following steps
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (indicated value of V) to the rated voltage value: b) Adjust the charging circuit Load resistance Z, so that the charging load current (indicated value of As) is the rated value: c) When the battery electrolyte temperature reaches 40°C, observe whether the operation of the controller temperature control system reduces the charging current: d) When the battery electrolyte When the liquid temperature reaches 45C, observe whether the operation of the controller temperature control system stops the charging current: e) Record the test results in Record Table 2.
5.9 Program-controlled controller constant current and constant voltage charging test 5.9.1 Program-controlled controller current charging test 5.9.1.1 DC input program-controlled controller test Wire according to the schematic diagram shown in Figure 1 , the AC input program-controlled controller test is wired according to the schematic diagram shown in Figure 2.
5.9.1.2 The test is carried out as follows:
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (the indicated value of V) to the voltage value of the constant current charging state b) Change the load resistance 2 of the charging circuit and check whether the controller is still in the constant current charging state: c) Record the test results in the record table 2.
5.9.2 Program-controlled controller constant voltage charging test 5.9.2.1 DC input program-controlled controller test Wire according to the schematic diagram shown in Figure 1: AC input program-controlled controller test according to the diagram Wiring according to the schematic diagram shown in 2,
5.9.2.2 test is carried out according to the following steps:
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (the indicated value of V) to the voltage value of the constant voltage charging state. b) Continue to increase the voltage of the regulated power supply and check whether the controller is still in the constant voltage charging state: c) Record the test results in Record Table 2.
5.10 No-load loss test
5.10.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 1, and the AC input type controller test should be based on the principle shown in Figure 2 Figure for wiring.
5.10.2 The test is carried out as follows:
a) Adjust the regulated power supply and adjust the controller DC output voltage (indicated value of V) to the rated voltage value: b) Adjust The load resistance Z of the charging circuit makes the charging load terminal current (the indicated value of A2) be zero. At this time, the DC input current of the controller (the indicated value of A,) is the no-load loss: c) Record the test results. Table 1, Table 2. 5.11 Voltage drop test of charging and discharging circuits 5.11.1 Voltage drop test of charging circuit
5.11.1.1 DC input controller test The wiring should be carried out according to the schematic diagram shown in Figure 1. The AC input controller test should be as shown in Figure 2 6
2 The test is carried out according to the following steps
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (indicated value of Vz) to the rated voltage value b) Adjust the charging circuit load resistance Zr to make the charging load current (Indicated value of Az) is the rated value: c) Connect the input terminal of the controller to the positive and negative poles of the power supply, and the output terminal to the positive and negative poles of the battery in reverse connection. Observe whether the protection measures for the reverse connection of the positive and negative poles at the output terminal of the controller work: 5
JB/T6939.22004
d) Record the test results in Record Table 2.
5.8.4 Unloading electronic load switching protection test 5.8.4.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 3, and the AC input type controller test should be based on the principle shown in Figure 4 Figure for wiring.
5.8.4.2 The test is carried out as follows:
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (indicated value of Vz) to the overcharge voltage value: b) Detection The unloading electronic load starts to switch protection action time: c) Test five times in a row, calculate the arithmetic average, record the test data in Record Table 1, and record the test results in Record Table 2. 5.8.5 Temperature control protection test || tt||5.8.5.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 1, and the AC input type controller test should be wired according to the schematic diagram shown in Figure 2.
5.8.5.2 The test is carried out according to the following steps
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (indicated value of V) to the rated voltage value: b) Adjust the charging circuit Load resistance Z, so that the charging load current (indicated value of As) is the rated value: c) When the battery electrolyte temperature reaches 40°C, observe whether the operation of the controller temperature control system reduces the charging current: d) When the battery electrolyte When the liquid temperature reaches 45C, observe whether the operation of the controller temperature control system stops the charging current: e) Record the test results in Record Table 2.
5.9 Program-controlled controller constant current and constant voltage charging test 5.9.1 Program-controlled controller current charging test 5.9.1.1 DC input program-controlled controller test Wire according to the schematic diagram shown in Figure 1 , the AC input program-controlled controller test is wired according to the schematic diagram shown in Figure 2.
5.9.1.2 The test is carried out according to the following steps:
a) Adjust the regulated power supply and adjust the controller DC output voltage (indicated value of V) to the voltage value of the constant current charging state b) Change the load resistance 2 of the charging circuit and check whether the controller is still in the constant current charging state: c) Record the test results in the record table 2.
5.9.2 Program-controlled controller constant voltage charging test 5.9.2.1 DC input program-controlled controller test Wire according to the schematic diagram shown in Figure 1: AC input program-controlled controller test according to the diagram Wiring according to the schematic diagram shown in 2,
5.9.2.2 test is carried out according to the following steps:
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (the indicated value of V) to the voltage value of the constant voltage charging state. b) Continue to increase the voltage of the regulated power supply and check whether the controller is still in the constant voltage charging state: c) Record the test results in Record Table 2.
5.10 No-load loss test
5.10.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 1, and the AC input type controller test should be based on the principle shown in Figure 2 Figure for wiring.
5.10.2 The test is carried out as follows:
a) Adjust the regulated power supply and adjust the controller DC output voltage (indicated value of V) to the rated voltage value: b) Adjust The load resistance Z of the charging circuit makes the charging load terminal current (the indicated value of A2) be zero. At this time, the DC input current of the controller (the indicated value of A,) is the no-load loss: c) Record the test results. Table 1, Table 2. 5.11 Voltage drop test of charging and discharging circuits 5.11.1 Voltage drop test of charging circuit
5.11.1.1 DC input controller test The wiring should be carried out according to the schematic diagram shown in Figure 1. The AC input controller test should be as shown in Figure 2 6
2 The test is carried out according to the following steps
a) Adjust the regulated power supply and adjust the voltage of the controller DC output terminal (the indicated value of Vz) to the rated voltage value b) Adjust the charging circuit load resistance Zr so that the charging load current (the indicated value of Az) is the rated value: c) Connect the controller input terminal to the positive and negative poles of the power supply, and the output terminal to the positive and negative poles of the battery, and observe whether the reverse connection protection measures of the controller output terminal are effective: 5
JB/T6939.22004
d) Record the test results in Record Table 2.
5.8.4 Unloading electronic load switching protection test 5.8.4.1 The DC input type controller test should be wired according to the schematic diagram shown in Figure 3, and the AC input type controller test should be wired according to the schematic diagram shown in Figure 4.
5.8.4.2 The test shall be carried out in the following steps:
a) Adjust the regulated power supply and adjust the voltage at the DC output terminal of the controller (the indicated value of Vz) to the overcharging voltage value; b) Detect the time when the unloading electronic load starts switching the protection action; c) Perform the test five times in a row, calculate the arithmetic mean, record the test data in Record Sheet 1, and record the test results in Record Sheet 2. 5.8.5 Temperature control protection test
5.8.5.1 The DC input type controller test shall be wired according to the schematic diagram shown in Figure 1, and the AC input type controller test shall be wired according to the schematic diagram shown in Figure 2.
5.8.5.2 The test is carried out according to the following steps
a) Adjust the voltage-stabilized power supply to adjust the voltage at the DC output terminal of the controller (the indicated value of V) to the rated voltage value: b) Adjust the load resistance Z of the charging circuit to make the charging load current (the indicated value of As) the rated value: c) When the battery electrolyte temperature reaches 40°C, observe whether the operation of the controller temperature control system reduces the charging current: d) When the battery electrolyte temperature reaches 45°C, observe whether the operation of the controller temperature control system stops the charging current: e) Record the test results in Record Table 2.
5.9 Constant current and constant voltage charging test of program-controlled controller 5.9.1 Constant current charging test of program-controlled controller 5.9.1.1 For the DC input program-controlled controller test, the wiring is carried out according to the schematic diagram shown in Figure 1, and for the AC input program-controlled controller test, the wiring is carried out according to the schematic diagram shown in Figure 2.
5.9.1.2 The test is carried out according to the following steps:
a) Adjust the regulated power supply and adjust the voltage (V, indicated value) of the DC output terminal of the controller to the voltage value of the constant current charging state b) Change the charging circuit load resistance 2 and check whether the controller is still in the constant current charging state: c) Record the test results in Record Sheet 2.
5.9.2 Constant voltage charging test of program-controlled controller 5.9.2.1 Test of DC input program-controlled controller Wiring is carried out according to the schematic diagram shown in Figure 1: Test of AC input program-controlled controller Wiring is carried out according to the schematic diagram shown in Figure 2.
5.9.2.2 The test is carried out according to the following steps:
a) Adjust the regulated power supply and adjust the voltage (V, indicated value) of the DC output terminal of the controller to the voltage value of the constant voltage charging state b) Continue to increase the voltage of the regulated power supply and check whether the controller is still in the constant voltage charging state: c) Record the test results in Record Sheet 2.
5.10 No-load loss test
5.10.1 The DC input controller test should be wired according to the schematic diagram shown in Figure 1, and the AC input controller test should be wired according to the schematic diagram shown in Figure 2.
5.10.2 The test is carried out according to the following steps:
a) Adjust the regulated power supply and adjust the DC output voltage of the controller (V, the indicated value) to the rated voltage value: b) Adjust the charging circuit load resistance Z so that the charging load current (the indicated value of A2) is zero. At this time, the DC input current of the controller (A, the indicated value) is the no-load loss: c) Record the test results in Table 1 and Table 2. 5.11 Voltage drop test of charging and discharging circuits 5.11.1 Voltage drop test of charging circuit
5.11.1.1 The DC input controller test should be wired according to the schematic diagram shown in Figure 1, and the AC input controller test should be wired according to the schematic diagram shown in Figure 26
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