JB/T 5845-1991 Test methods for rectifier equipment for high voltage electrostatic precipitators
Some standard content:
K46 | | tt | | JB |
1/4
G20P pEe/
Subject content and scope of application
This standard specifies the requirements for test methods for high-voltage electrostatic precipitator rectifier equipment. This standard applies to the test of ZBK46008, 1 "Isolation Pressure Electrostatic Precipitator Rectifier Equipment". 2 Reference standards
GB3859
Half-body power converter
2BK46008.1 High-voltage electrostatic elimination rectifier GB3797
Electronic control equipment The second part always contains electronic devices Electrical control equipment test items
3
3.1-General inspection
3,2 Integrated strength test
3.3 Measurement and calculation of equipment efficiency and power factor 3.4 No-load test
3.5 load test
3.6
3.7
Temperature rise test
Trigger device performance check
3.8 Flashover test| |tt||Impact, short circuit and protection test
3,9
4
Testing equipment and instrumentation
4.1
4.2||tt| |4.3
High pressure withstand test equipment
Oil pressure withstand test equipment
Withstand voltage test equipment
Frequency multiplier withstand voltage test equipment
4.4|| tt||4.5
Test instruments
AC voltmeter
b.
c.
d.
e.| |tt||f.
g.
h.
AC ammeter
Power meter
DC ammeter
Current transformer| |tt||Level 0.5
Level 0.5
Level 0.5
Level 0.5
0.2
DC voltage measuring plate rod (Runmanwu)|| tt||Level 0.5
Electrostatic voltmeter
Shuanglu bridge
Level 1.5
Megohm
Passed the inspection by the superior accounting unit. 1991-10-24
1
JB/T58451991
1992-10-01
5 General inspection
5.1 Electrical and optical parts inspection|| tt||JB/T58451991
The models and specifications of various semiconductor devices and inductor components used in avoidance equipment must meet the design requirements and have certificates. 5.2 Body inspection
Check the processing quality of the cabinet structure, the shape, welds, painting, metal parts, electrical component installation, no circuit connection, and secondary wiring signs should all comply with GB3797 The forehead design is for infants. 5.3 Inspection of high-voltage magnetic rectifier transformer
The processing quality of high-voltage silicon rectifier transformer such as shape, size, hood, paint, and wheelbase should comply with GB3859 and design requirements. G insulation high voltage test
6.1 Insulation resistance measurement
This test is conducted in conjunction with the withstand voltage test. Use a megohmmeter to measure the insulation current limit of the test part. The micrometer should not be greater than 1MD/ kV, insulation resistance is only used as a parameter for insulation strength test, not for verification. The voltage levels of the megameter are as shown in Table 1. Pack!
Love
Test
Department
Rectifier transformer high voltage national road
bit
Rectifier transformer initial line certificate, reactor winding control Turn the main room road
Control frame and control the same road
6.2 Pressure resistance test of variable pressure condensate
Megohm pressure level
V||tt ||2500
1000
1000
seo
During the test, put the tested transformer oil into the cleaning device to adjust the electrode health Parallel and root distance. 5 m (use a temperature gauge to check the sound between the two electrodes of the plate). Let the variable pressure decomposition oil rest for 10~15mn in the new supply, and then turn on the pre-discharge test equipment to make the voltage rise at a constant speed (stopping in the middle is not allowed) until the oil leaks out, record the voltage value between the main discharge and the tide, and make If the voltage drops, etc., before testing again, use a glass rod to toggle between the electrodes several times, leave 5%, and then conduct a second test. Repeat the test five times in a row, and take the arithmetic mean of the five consecutive measurements. The value is used as the single-average breakdown voltage value of the transformer oil. 3. The high-voltage circuit of the transformer (isolated voltage group, isolated porcelain vertical pipe) is subjected to a voltage test on the low-voltage winding, iron core and box shell. Connected to the test transformer, the power frequency AC two-phase test voltage value (effective value) shown in Cheng Zhishuang 2 lasted for 1 minute without any insulation breakdown or abnormal sound. Qiu 2
Equipment rated output voltage comprehensive level
40
(50)
60
(66)
Power frequency air-train voltage test electromagnetic medicine (valid )
60
75
90
99
Iv
Equipment rated output voltage level
72|| tt||(80)
90
O
130
150
JB/T58451991
Continuation 2||tt| |Gong Ling Shiliu Li Medical Test Electric (valid letter) 108
120
.90
14.0
160
190
ley
6.4 For the resistance test of the low-voltage winding of the rectifier transformer and the reactor winding to the box porcelain, connect the low-voltage line group or the reactor line group of the tested transformer to the test converter, and then gradually increase the separation voltage. The external operating frequency ampere voltage is 2000V (effective value) for 1 minute without insulation breakdown, flashing or abnormality. 6.5 Monitoring test of precision torque
6.5.1 Working voltage in the control cabinet. When testing the voltage of components greater than 90V on the ground terminal of the cabinet, the printed poles in the cabinet should be removed, the ground terminals of the components related to the voltage of the cabinet should be removed, and components with operating voltages lower than 90V should be connected. Connect the ground terminals of the cabinet together in parallel. Please change the input and output terminals. It is best to connect the test components of the front tube, positive terminal and gate pole together, connect them to the withstand voltage test equipment, and then connect the test equipment. The electrocondensation step increases to 20V (effective), lasts for 1m1n, and then drops to zero rapidly and smoothly. There should be no insulation breakdown or flashover noise. 6.5.2 The operating voltage in the control cabinet is less than 90V. During the test of the residual connection of the unit device, the printed board in the cabinet should be removed, and the connectors related to the device should be removed, so that the components under test should be connected together and connected. Test the equipment, and then increase the voltage of the test equipment step by step to 600V (effectively low), and then drop it quickly and smoothly into the chamber. There should be no insulation breakdown, flashover or normal sound. 6.6 Current transformer winding. The frequency multiplier voltage test of the internal insulation should be carried out without voltage compensation. The effective value of the test voltage is 3.5 volts. The input AC voltage lasts for 1m. There should be no insulation breakdown or flashover. Or abnormal sound. In the test tree, connect the initial rectifier transformer of the instrument to be tested, (the lead of the backup winding is not connected), and increase the induced voltage to 1.5 rated input AC voltage, with a history of 1m1: If the test is in progress If the equipment exceeds the rated limit, it will automatically break, and the thermorheological device under test will be broken down, and the test will be deemed unqualified. The equipment will automatically cut off the power supply after 1 minute of testing, and the food grid will be used for this test. 7Complete machine test
7.1 Test wiring diagram
3
Condensation flow
Check in
JB/T58451991
Isolation pressure static electricity Rectification equipment for dust removal
Digging
Compressor
Jialiu
Output device
High voltage silicon rectifier equipment test wiring diagram
Straight - the power supply resists the knife melting,
W. AC voltmeter
is the power meter
A1--AC ammeter
RR load.
Note: A micro-mounted DC voltage micrometer can be used to measure the DC output voltage. K voltage isolation switch
Electrostatic voltmeter
CT. Current transformer
A DC current capsule,
K
Re
7.2. Measurement and calculation of the efficiency and power factor of the equipment. Under the rated operating conditions, the equipment receives AC input power, apparent power and DC output power detected on the DC side and calculates the efficiency and power of the equipment according to the following formula: factor.
(1)
cosq
where: Pa-Ua·Ia
P,-U,·I
where, efficiency||tt ||costh—contribution state factor
P.-turn active power:
P input apparent power
U—running source voltage or AC input voltage||tt| |I AC input current,
Pa flow output power
U flow output power
I. Appropriate flow output current.
Note: It is difficult to simulate computers in China. You can use the running resistance negative device to conduct the test. This 1.3 no-load test
(2)
will assist the high-voltage rectifier. By opening the circuit, use a voltage regulator to send power, or open the mains voltage rectifier equipment, and slowly increase the current voltage. The output voltage of the mains voltage silicon rectifier is 1.5 times the rated output voltage. Run for 1 minute. There should be breakdown, flashover or constant sound. 7.4 Load test
4
JB/T58451991
The factory test is carried out in-house using a simulated electric field (without step gas) to generate electrical hazard data. When using a model electric field test, the equipment should be in the rated heat transfer state as much as possible: When testing with a resistive load: the equipment should be operated at rated output DC current and not less than 80% of rated output true current voltage.
During the type test, in addition to the production test, it can also be carried out on-site using the actual negative pressure of the focus collector. The above-mentioned test equipment runs stably for 15 days and there should be no abnormal phenomena. 7.5 Temperature rise test
7.5.1 Determination of the ambient temperature of the mouse
The ambient temperature of the periodically adjusted environment shall be determined by not less than the average value of the readings of several drift meters. This thermometer should be The hooks are evenly distributed at a distance of 1u from the product under test and half of the height of the product under test. The thermometer should be ensured to avoid the influence of external airflow, thermal radiation and rapid temperature changes, so as to avoid measurement errors.
7.5.2 Temperature rise test of equipment
The purpose of the temperature rise test is to check the equipment's temperature rise test when the equipment reaches the rated output DC range and the output voltage is 100% and 70% of the rated value. The temperature rise shall comply with the provisions of Article 3.7 of ZBK46008.3. a. Use a thermocouple thermometer or other methods to measure the temperature of the transformer shell, oil top layer and various parts of the control plant. When there is a large alternating magnetic field near the measurement point, an alcohol thermometer should be used. 5. Determine the temperature rise by electrophotography: The temperature rise of the wire diagram can be measured by the resistance method, that is, the hot resistance and cold resistance of the wire mass can be determined by calculation. Before measuring the cold resistance left on the wire, the product under test should be placed indoors for at least 3 seconds. The change in room temperature should not be greater than 30°C within 1 hour before the measurement. The hot resistance and the cold resistance should be measured with an instrument using a separate sample method, and the load-guiding connection points should also face each other. The wet rise of the coil can be calculated according to the following formula:
Ra
TeR
-(234.5+0,)-(234.5+6).
武中; Temperature rise of the measuring line, K;
0 Measure the ambient temperature of the surrounding environment when the measured resistance is in the cold state and is turned off, ℃; Measure the ambient temperature of the surrounding environment when the resistance of the measured line is in the hot state, CR Scored cold electrical connection. The resistance value when the ambient temperature of Yuzhougu is 9, 9R. The thermal resistance of the coil under test. The resistance value of the combined Zhou Guo ring is when the degree of intensification is. 7.5.3 Thermal stability value
(3)Www.bzxZ.net
The environment should be under relatively stable conditions during the temperature rise test. If maintained for a long enough time, the temperature of each part will reach thermal stability. If the speed of the temperature controller does not exceed 1K per hour, the headband will be thermally stable. 7.6 Trigger installation performance inspection
Use an oscilloscope to check the change range of the conduction angle, which should meet the product technical conditions. Its waveform should be smooth and symmetrical. 7.7 Junction test
This test is carried out at the load point of the electrostatic precipitator using the method of changing the discharge interval during manufacturing. Other equipment changes the effective electrical gap under conditions close to the rated voltage and rated current, so that the frequency of flashover can be no less than 60 times, especially (during the test, the voltage and current are not evaluated). After the test, the equipment should work normally. 7.8 Punching, short circuit and protection test
7.8.1 Load washout test
Before the test, adjust the negative cutting to the rated value, then operate the control button of the frame and the workpiece, and stop the control button class. Make the rectifier transformer decompress once, and prepare 60 times of separation and closing time (dividing and closing time are counted as one time, and the instrument pointer Shuda is set value each time) 7.8.2 Rectifier transformer - secondary side dividing and closing time For open-circuit impact and over-current tests, the tester isolates the high voltage and puts it in an open-circuit state (remove the over-voltage protection during control): the price adjustment setting is in the zero position and the output state 2 There are two kinds of micro-positioning, but there are two kinds of customer operation control buttons in the middle, the work button and the stop button, the primary side of the rectifier transformer is divided and closed (the dividing and closing process is one time), when the zero cut-off position is given It is 20 times, and the given value is 505
times in the rated output state. The equipment should work normally after the test.
7.8.3 Short-circuit impact test
JB/T58451991
Before the test, put the commercial voltage isolating switch in the short-circuit state, and adjust the given value to the zero position and rated output state respectively. Two positions, then press the work button and stop button in each operation control box in the above two positions to make the rectifier transformer open and close on the primary side (one process between opening and closing is one time, and the instrument pointer needs to reach a stable value each time) , the zero position of the given value is attached for 10 times, and the given value is attached to the rated output state for 50 times. After the test, the equipment should work normally.
7.8.4 Short-circuit impulse test of the flow-side dripping pressure isolating switch. Before the test, adjust the load to the rated value, and then operate the flow-side dripping pressure isolating switch according to the load and short-circuit procedures 20 times (load, short-circuit The equipment should work normally after the test. 7.8.5 Calculate the DC side high voltage section to leave Midea’s open circuit impact and overvoltage test. Before the test, adjust the voltage to the rated value (remove the overvoltage protection device in the control circuit), and then operate the DC side high voltage weak voltage switch to press the negative button. , open circuit 20 times (one process of negative interception and open circuit is one time), the equipment should work normally after the test. 7.8.6 Inspection of overload protection
During the load test, check the overcurrent setting value of each overcurrent protection device, such as the current limit setting of the control system, overcurrent relay and thermal appliance, etc. The components are adjusted to meet the design requirements. 7.8.7 Short-circuit and short-circuit protection test
Before the test, adjust the negative switch to the rated value, and then operate the DC side high-voltage isolating switch to make it short-circuited. The protection device should work properly. After the test, the equipment should work properly. .
Additional notes:
This standard is photographed and standardized by the National Power Electronics Standardization Association. This standard is drafted by Gonghai Electrical Equipment Co., Ltd. and other units. This title is mainly drafted by Hua Wei.
6
Service
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JB/T5
58451991
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4 Load test
4
JB/T58451991
The factory test is carried out in-house using a simulated electric field (without step gas) to generate electrical hazard data. When using a model electric field test, the equipment should be in the rated heat transfer state as much as possible: When testing with a resistive load: the equipment should be operated at rated output DC current and not less than 80% of rated output true current voltage.
During the type test, in addition to the production test, it can also be carried out on-site using the actual negative pressure of the focus collector. The above-mentioned test equipment runs stably for 15 days and there should be no abnormal phenomena. 7.5 Temperature rise test
7.5.1 Determination of the ambient temperature of the mouse
The ambient temperature of the periodically adjusted environment shall be determined by not less than the average value of the readings of several drift meters. This thermometer should be The hooks are evenly distributed at a distance of 1u from the product under test and half of the height of the product under test. The thermometer should be ensured to avoid the influence of external airflow, thermal radiation and rapid temperature changes, so as to avoid measurement errors.
7.5.2 Temperature rise test of equipment
The purpose of the temperature rise test is to check the equipment's temperature rise test when the equipment reaches the rated output DC range and the output voltage is 100% and 70% of the rated value. The temperature rise shall comply with the provisions of Article 3.7 of ZBK46008.3. a. Use a thermocouple thermometer or other methods to measure the temperature of the transformer shell, oil top layer and various parts of the control plant. When there is a large alternating magnetic field near the measurement point, an alcohol thermometer should be used. 5. Determine the temperature rise by electrophotography: The temperature rise of the wire diagram can be measured by the resistance method, that is, the hot resistance and cold resistance of the wire mass can be determined by calculation. Before measuring the cold resistance left on the wire, the product under test should be placed indoors for at least 3 seconds. The change in room temperature should not be greater than 30°C within 1 hour before the measurement. The hot resistance and the cold resistance should be measured with an instrument using a separate sample method, and the load-guiding connection points should also face each other. The wet rise of the coil can be calculated according to the following formula:
Ra
TeR
-(234.5+0,)-(234.5+6).
武中; Temperature rise of the measuring line, K;
0 Measure the ambient temperature of the surrounding environment when the measured resistance is in the cold state and is turned off, ℃; Measure the ambient temperature of the surrounding environment when the resistance of the measured line is in the hot state, CR Scored cold electrical connection. The resistance value when the ambient temperature of Yuzhougu is 9, 9R. The thermal resistance of the coil under test. The resistance value of the combined Zhou Guo ring is when the degree of intensification is. 7.5.3 Thermal stability value
(3)
The environment should be under relatively stable conditions during the temperature rise test. If maintained for a long enough time, the temperature of each part will reach thermal stability. If the speed of the temperature controller does not exceed 1K per hour, the headband will be thermally stable. 7.6 Trigger installation performance inspection
Use an oscilloscope to check the change range of the conduction angle, which should meet the product technical conditions. Its waveform should be smooth and symmetrical. 7.7 Junction test
This test is carried out at the load point of the electrostatic precipitator using the method of changing the discharge interval during manufacturing. Other equipment changes the effective electrical gap under conditions close to the rated voltage and rated current, so that the frequency of flashover can be no less than 60 times, especially (during the test, the voltage and current are not evaluated). After the test, the equipment should work normally. 7.8 Punching, short circuit and protection test
7.8.1 Load washout test
Before the test, adjust the negative cutting to the rated value, then operate the control button of the frame and the workpiece, and stop the control button class. Make the rectifier transformer decompress once, and prepare 60 times of separation and closing time (dividing and closing time are counted as one time, and the instrument pointer Shuda is set value each time) 7.8.2 Rectifier transformer - secondary side dividing and closing time For open-circuit impact and over-current tests, the tester isolates the high voltage and puts it in an open-circuit state (remove the over-voltage protection during control): the price adjustment setting is in the zero position and the output state 2 There are two kinds of micro-positioning, but there are two kinds of customer operation control buttons in the middle, the work button and the stop button, the primary side of the rectifier transformer is divided and closed (the dividing and closing process is one time), when the zero cut-off position is given It is 20 times, and the given value is 505
times in the rated output state. The equipment should work normally after the test.
7.8.3 Short-circuit impact test
JB/T58451991
Before the test, put the commercial voltage isolating switch in the short-circuit state, and adjust the given value to the zero position and rated output state respectively. Two positions, then press the work button and stop button in each operation control box in the above two positions to make the rectifier transformer open and close on the primary side (one process between opening and closing is one time, and the instrument pointer needs to reach a stable value each time) , the zero position of the given value is attached for 10 times, and the given value is attached to the rated output state for 50 times. After the test, the equipment should work normally.
7.8.4 Short-circuit impulse test of the flow-side dripping pressure isolating switch. Before the test, adjust the load to the rated value, and then operate the flow-side dripping pressure isolating switch according to the load and short-circuit procedures 20 times (load, short-circuit The equipment should work normally after the test. 7.8.5 Calculate the DC side high voltage section to leave Midea’s open circuit impact and overvoltage test. Before the test, adjust the voltage to the rated value (remove the overvoltage protection device in the control circuit), and then operate the DC side high voltage weak voltage switch to press the negative button. , open circuit 20 times (one process of negative interception and open circuit is one time), the equipment should work normally after the test. 7.8.6 Inspection of overload protection
During the load test, check the overcurrent setting value of each overcurrent protection device, such as the current limit setting of the control system, overcurrent relay and thermal appliance, etc. The components are adjusted to meet the design requirements. 7.8.7 Short-circuit and short-circuit protection test
Before the test, adjust the negative switch to the rated value, and then operate the DC side high-voltage isolating switch to make it short-circuited. The protection device should work properly. After the test, the equipment should work properly. .
Additional notes:
This standard is photographed and standardized by the National Power Electronics Standardization Association. This standard is drafted by Gonghai Electrical Equipment Co., Ltd. and other units. This title is mainly drafted by Hua Wei.
6
Service
E
A
ED
4
JB/T5
58451991
*
yig
Degree by g
2A
★
880A1230
19XXA XX
1
1/16
X&
XXX
halogen
X/X
100044
|tt||xx should
19XXA1
XXX.XX0
XXXXX
X
http://JB.ac.cn||tt| |1661585
Lar
4 Load test
4
JB/T58451991
The factory test is carried out in-house using a simulated electric field (without step gas) to generate electrical hazard data. When using a model electric field test, the equipment should be in the rated heat transfer state as much as possible: When testing with a resistive load: the equipment should be operated at rated output DC current and not less than 80% of rated output true current voltage.
During the type test, in addition to the production test, it can also be carried out on-site using the actual negative pressure of the focus collector. The above-mentioned test equipment runs stably for 15 days and there should be no abnormal phenomena. 7.5 Temperature rise test
7.5.1 Determination of the ambient temperature of the mouse
The ambient temperature of the periodically adjusted environment shall be determined by not less than the average value of the readings of several drift meters. This thermometer should be The hooks are evenly distributed at a distance of 1u from the product under test and half of the height of the product under test. The thermometer should be ensured to avoid the influence of external airflow, thermal radiation and rapid temperature changes, so as to avoid measurement errors.
7.5.2 Temperature rise test of equipment
The purpose of the temperature rise test is to check the equipment's temperature rise test when the equipment reaches the rated output DC range and the output voltage is 100% and 70% of the rated value. The temperature rise shall comply with the provisions of Article 3.7 of ZBK46008.3. a. Use a thermocouple thermometer or other methods to measure the temperature of the transformer shell, oil top layer and various parts of the control plant. When there is a large alternating magnetic field near the measurement point, an alcohol thermometer should be used. 5. Use the electrophotographic method to measure the temperature rise: The temperature rise of the line diagram can be measured by the resistance method, that is, the hot state resistance and cold state resistance of the wire mass are determined by calculation. Before measuring the cold resistance left on the wire, the product under test should be placed indoors for at least 3 seconds. The change in room temperature should not be greater than 30°C within 1 hour before the measurement. The hot resistance and the cold resistance should be measured with an instrument using a separate sample method, and the load-guiding connection points should also face each other. The wet rise of the coil can be calculated according to the following formula:
Ra
TeR
-(234.5+0,)-(234.5+6).
武中; Temperature rise of the measuring line, K;
0 Measure the ambient temperature of the surrounding environment when the measured resistance is in the cold state and is turned off, ℃; Measure the ambient temperature of the surrounding environment when the resistance of the measured line is in the hot state, CR Scored cold electrical connection. The resistance value when the ambient temperature of Yuzhougu is 9, 9R. The thermal resistance of the coil under test. The resistance value of the combined Zhou Guo ring is when the degree of intensification is . 7.5.3 Thermal stability value
(3)
The environment should be under relatively stable conditions during the temperature rise test. If maintained for a long enough time, the temperature of each part will reach thermal stability. If the speed of the temperature controller does not exceed 1K per hour, the headband will be thermally stable. 7.6 Trigger installation performance inspection
Use an oscilloscope to check the change range of the conduction angle, which should meet the product technical conditions. Its waveform should be smooth and symmetrical. 7.7 Junction test
This test is carried out at the load point of the electrostatic precipitator using the method of changing the discharge interval during manufacturing. Other equipment changes the effective electrical gap under conditions close to the rated voltage and rated current, so that the frequency of flashover is not less than 60 times, especially (during the test process, the voltage and current are not evaluated). After the test, the equipment should work normally. 7.8 Punching, short circuit and protection test
7.8.1 Load washout test
Before the test, adjust the negative cutting to the rated value, then operate the control button of the frame and the workpiece, and stop the control button class. Make the rectifier transformer decompress once, and prepare 60 times of separation and closing time (dividing and closing time are counted as one time, and the instrument pointer Shuda is set value each time) 7.8.2 Rectifier transformer - secondary side dividing and closing time For open-circuit impact and over-current tests, the tester isolates the high voltage and puts it in an open-circuit state (remove the over-voltage protection during control): the price adjustment setting is in the zero position and the output state 2 There are two kinds of micro-positioning, but there are two kinds of customer operation control buttons in the middle, the work button and the stop button, the primary side of the rectifier transformer is divided and closed (the dividing and closing process is one time), when the zero cut-off position is given It is 20 times, and it is 505
times at the given rated output state. The equipment should work normally after the test.
7.8.3 Short-circuit impact test
JB/T58451991
Before the test, put the commercial voltage isolating switch in the short-circuit state, and adjust the given value to zero position and rated output state respectively. Two positions, then press the work button and stop button in each operation control box in the above two positions to make the rectifier transformer open and close on the primary side (one process between opening and closing is one time, and the instrument pointer needs to reach a stable value each time) , the given value zero is attached for 10 times, and the given value is attached to the rated output state for 50 times. After the test, the equipment should work normally.
7.8.4 Short-circuit impulse test of the flow-side dripping pressure isolating switch. Before the test, adjust the load to the rated value, and then operate the flow-side dripping pressure isolating switch according to the load and short-circuit procedures 20 times (load, short-circuit The equipment should work normally after the test. 7.8.5 Calculate the DC side high voltage section and leave Midea's open circuit impact and overvoltage test. Before the test, adjust the voltage to the rated value (remove the overvoltage protection device in the control circuit), and then operate the DC side high voltage weak voltage switch to press the negative button. , open circuit 20 times (one process of negative interception and open circuit is one time), the equipment should work normally after the test. 7.8.6 Inspection of overload protection
During the load test, check the overcurrent setting value of each overcurrent protection device, such as the current limit setting of the control system, overcurrent relay and thermal appliance, etc. The components are adjusted to meet the design requirements. 7.8.7 Short-circuit and short-circuit protection test
Before the test, adjust the negative switch to the rated value, and then operate the DC side high-voltage isolating switch to make it short-circuited. The protection device should work properly. After the test, the equipment should work properly. .
Additional notes:
This standard is photographed and standardized by the National Power Electronics Standardization Association. This standard is drafted by Gonghai Electrical Equipment Co., Ltd. and other units. This title is mainly drafted by Hua Wei.
6
Service
E
A
ED
4
JB/T5
58451991
*
yig
Degree by g
2A
★
880A1230
19XXA XX
1
1/16
X&
XXX
halogen
X/X
100044
|tt||xx should
19XXA1
XXX.XX0
XXXXX
X
http://JB.ac.cn||tt| |1661585
Lar
5.3 Thermal stability value
(3)
The environment should be under relatively stable conditions during the temperature rise test. If maintained for a long enough time, the temperature of each part will reach thermal stability. If the speed of the temperature controller does not exceed 1K per hour, the headband will be thermally stable. 7.6 Trigger installation performance inspection
Use an oscilloscope to check the change range of the conduction angle, which should meet the product technical conditions. Its waveform should be smooth and symmetrical. 7.7 Junction test
This test is carried out at the load point of the electrostatic precipitator using the method of changing the discharge interval during manufacturing. Other equipment changes the effective electrical gap under conditions close to the rated voltage and rated current, so that the frequency of flashover can be no less than 60 times, especially (during the test, the voltage and current are not evaluated). After the test, the equipment should work normally. 7.8 Punching, short circuit and protection test
7.8.1 Load washout test
Before the test, adjust the negative cutting to the rated value, then operate the control button of the frame and the workpiece, and stop the control button class. Make the rectifier transformer decompress once, and prepare 60 times of separation and closing time (dividing and closing time are counted as one time, and the instrument pointer Shuda is set value each time) 7.8.2 Rectifier transformer - secondary side dividing and closing time For open-circuit impact and over-current tests, the tester isolates the high voltage and puts it in an open-circuit state (remove the over-voltage protection during control): the price adjustment setting is in the zero position and the output state 2 There are two kinds of micro-positioning, but there are two kinds of customer operation control buttons in the middle, the work button and the stop button, the primary side of the rectifier transformer is divided and closed (the dividing and closing process is one time), when the zero cut-off position is given It is 20 times, and the given value is 505
times in the rated output state. The equipment should work normally after the test.
7.8.3 Short-circuit impact test
JB/T58451991
Before the test, put the commercial voltage isolating switch in the short-circuit state, and adjust the given value to the zero position and rated output state respectively. Two positions, then press the work button and stop button in each operation control box in the above two positions to make the rectifier transformer open and close on the primary side (one process between opening and closing is one time, and the instrument pointer needs to reach a stable value each time) , the zero position of the given value is attached for 10 times, and the given value is attached to the rated output state for 50 times. After the test, the equipment should work normally.
7.8.4 Short-circuit impulse test of the flow-side dripping pressure isolating switch. Before the test, adjust the load to the rated value, and then operate the flow-side dripping pressure isolating switch according to the load and short-circuit procedures 20 times (load, short-circuit The equipment should work normally after the test. 7.8.5 Calculate the DC side high voltage section to leave Midea’s open circuit impact and overvoltage test. Before the test, adjust the voltage to the rated value (remove the overvoltage protection device in the control circuit), and then operate the DC side high voltage weak voltage switch to press the negative button. , open the circuit 20 times (one process of negative interception and open circuit is one time), the equipment should work normally after the test. 7.8.6 Inspection of overload protection
During the load test, check the overcurrent setting value of each overcurrent protection device, such as the current limit setting of the control system, overcurrent relay and thermal appliance, etc. The components are adjusted to meet the design requirements. 7.8.7 Short-circuit and short-circuit protection test
Before the test, adjust the negative switch to the rated value, and then operate the DC side high-voltage isolating switch to make it short-circuited. The protection device should work properly. After the test, the equipment should work properly. .
Additional notes:
This standard is photographed and standardized by the National Power Electronics Standardization Association. This standard is drafted by Gonghai Electrical Equipment Co., Ltd. and other units. This title is mainly drafted by Hua Wei.
6
Service
E
A
ED
4
JB/T5
58451991
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yig
Degree by g
2A
★
880A1230
19XXA XX
1
1/16
X&
XXX
halogen
X/X
100044
|tt||xx should
19XXA1
XXX.XX0
XXXXX
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http://JB.ac.cn||tt| |1661585
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5.3 Thermal stability value
(3)
The environment should be under relatively stable conditions during the temperature rise test. If maintained for a long enough time, the temperature of each part will reach thermal stability. If the speed of the temperature controller does not exceed 1K per hour, the headband will be thermally stable. 7.6 Trigger installation performance inspection
Use an oscilloscope to check the change range of the conduction angle, which should meet the product technical conditions. Its waveform should be smooth and symmetrical. 7.7 Junction test
This test is carried out at the load point of the electrostatic precipitator using the method of changing the discharge interval during manufacturing. Other equipment changes the effective electrical gap under conditions close to the rated voltage and rated current, so that the frequency of flashover can be no less than 60 times, especially (during the test, the voltage and current are not evaluated). After the test, the equipment should work normally. 7.8 Punching, short circuit and protection test
7.8.1 Load washout test
Before the test, adjust the negative cutting to the rated value, then operate the control button of the frame and the workpiece, and stop the control button class. Make the rectifier transformer decompress once, and prepare 60 times of separation and closing time (dividing and closing time are counted as one time, and the instrument pointer Shuda is set value each time) 7.8.2 Rectifier transformer - secondary side dividing and closing time For open-circuit impact and over-current tests, the tester isolates the high voltage and puts it in an open-circuit state (remove the over-voltage protection during control): the price adjustment setting is in the zero position and the output state 2 There are two kinds of micro-positioning, but there are two kinds of customer operation control buttons in the middle, the work button and the stop button, the primary side of the rectifier transformer is divided and closed (the dividing and closing process is one time), when the zero cut-off position is given It is 20 times, and the given value is 505
times in the rated output state. The equipment should work normally after the test.
7.8.3 Short-circuit impact test
JB/T58451991
Before the test, put the commercial voltage isolating switch in the short-circuit state, and adjust the given value to the zero position and rated output state respectively. Two positions, then press the work button and stop button in each operation control box in the above two positions to make the rectifier transformer open and close on the primary side (one process between opening and closing is one time, and the instrument pointer needs to reach a stable value each time) , the given value zero is attached for 10 times, and the given value is attached to the rated output state for 50 times. The equipment should work normally after the test.
7.8.4 Short-circuit impulse test of the flow-side dripping pressure isolating switch. Before the test, adjust the load to the rated value, and then operate the flow-side dripping pressure isolating switch according to the load and short-circuit procedures 20 times (load, short-circuit The equipment should work normally after the test. 7.8.5 Calculate the DC side high voltage section to leave Midea’s open circuit impact and overvoltage test. Before the test, adjust the voltage to the rated value (remove the overvoltage protection device in the control circuit), and then operate the DC side high voltage weak voltage switch to press the negative button. , open circuit 20 times (one process of negative interception and open circuit is one time), the equipment should work normally after the test. 7.8.6 Inspection of overload protection
During the load test, check the overcurrent setting value of each overcurrent protection device, such as the current limit setting of the control system, overcurrent relay and thermal appliance, etc. The components are adjusted to meet the design requirements. 7.8.7 Short-circuit and short-circuit protection test
Before the test, adjust the negative switch to the rated value, and then operate the DC side high-voltage isolating switch to make it short-circuited. The protection device should work properly. After the test, the equipment should work properly. .
Additional notes:
This standard is photographed and standardized by the National Power Electronics Standardization Association. This standard is drafted by Gonghai Electrical Equipment Co., Ltd. and other units. This title is mainly drafted by Hua Wei.
6
Service
E
A
ED
4
JB/T5
58451991
*
yig
Degree by g
2A
★
880A1230
19XXA XX
1
1/16
X&
XXX
halogen
X/X
100044
|tt||xx should
19XXA1
XXX.XX0
XXXXX
X
http://JB.ac.cn||tt| |1661585
Lar
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