JB/T 5805-1991 Electronic control device for medium frequency generator sets for ships
Some standard content:
Mechanical Industry Standard of the People's Republic of China
Electronic Control Devices for Marine Medium Frequency Generator Sets
1 Subject Content and Scope of Application
JB/T5805—1991
This standard specifies the basic requirements such as technical requirements, test methods and inspection rules for electronic control devices for marine medium frequency generator sets (hereinafter referred to as electronic control devices).
This standard applies to electronic control devices for marine medium frequency generator sets used for medium frequency power supplies such as ship navigation systems. This standard does not apply to static frequency conversion devices. 2 Reference standards
GB1497
GB2423.16
GB2423.17
GB2900.34
GB3783
GB6994
GB7061
GB7094
GJB399
JB27 59
JB3284
ZBU04 001
Terms and Terms
Basic Test Methods for Low Voltage Electrical Appliances
Basic Standards for Low Voltage Electrical Appliances
Basic Environmental Test Procedures for Electrical and Electronic Products Test A: Low Temperature Test Method Basic Environmental Test Procedures for Electrical and Electronic Products Test B: High Temperature Test Method
Basic Environmental Test Procedures for Electrical and Electronic Products Test Db: Alternating Humidity Test Method Basic Environmental Test Procedures for Electrical and Electronic Products Test J: Mildew Test Method||t t||Basic environmental test procedures for electrical and electronic productsBasic terms for electrical terms
Electrical terms for automatic control
Basic standards for marine low-voltage electrical appliances
Protection levels for low-voltage electrical enclosures
General provisions for marine electrical equipment
Test Ka: Salt spray test method
General technical conditions for marine low-voltage switchgear and control equipmentShip electrical specifications
Vibration (sinusoidal) test method for marine electrical equipmentTechnical conditions for marine electric medium-frequency generator setsWet and heat test methods for electrical products
General technical conditions for packaging of electromechanical products
Basic environmental conditions for transportation and storage of motors and electrical products and testsMethod for compiling models of marine low-voltage switchgear and electronic control devicesThis standard quotes terms and definitions related to this standard in GJB399. The definitions of general terms comply with the provisions of GB2900.1 and GB2900.34 electrical terms. 4 Configuration of electronic control device
The configuration of electronic control device is applicable to the category, type, working system and model representation method of marine medium frequency generator sets. 4.1 Configuration of applicable motors
Approved by the Ministry of Machinery and Electronics Industry on October 15, 1991 168
Implementation on October 1, 1992
4.1.1 DC motor
Rated voltage is 24, 110, 220V.
4.1.2 AC motor
Rated voltage is 220, 380V
b. Rated frequency is 50Hz;
Three-phase.
4.2 Configure suitable medium frequency generator
·JB/T5805—1991
4.2.1 Rated voltage is 120 (or 115), 230 (or 208), 400 (or 390) V. 4.2.2 Rated frequency is 400, 1000 Hz. 4.2.3 Rated power is 0.15, 0.35, 0.5, 1.5, 2, 4, 6, 8, 10, 15, 30, 50 kW4.2.4 Rated power factor is 0.8 (lagging). 4.2.5 The number of phases is single-phase or three-phase.
4.3, Configuration type of electronic control device.
The electronic control device should be configured in the following two ways: type A and type B. 4.3.1 Type A configuration
When type A configuration is specified, the following equipment shall be provided and installed in separate boxes. a.
Motor starter (should be equipped with motor overload protection, indicator light and button); voltage regulator (should be equipped with generator output voltmeter or indicator light and control button); frequency regulator (only for medium-frequency generator sets driven by DC motors). 4.3.2 Type B configuration
When type B configuration is specified, the following equipment shall be provided and installed in a common box. a.
Motor starter (should be equipped with motor overload protection, indicator light and button): voltage regulator:
frequency regulator (only for medium-frequency generator sets driven by DC motors); generator output voltmeter;
generator output ammeter:
generator output frequency meter (when equipped with frequency regulator equipment); generator circuit breaker (if required by the user). 4.4 Working system
The electronic control device is in continuous working system (S1) under rated condition. 4.5 Model indication method
The model indication method of the electronic control device shall comply with the provisions of Article 3.2 of ZBU04001. 5
Technical requirements
5.1 The electronic control device shall comply with this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 5.2 Conditions of use
The electronic control device shall work normally under the following conditions of use. 5.2.1 Environmental conditions
The ambient air temperature is -10~+50℃;
The relative humidity of the air is 95%, and there is condensation: there are salt spray, oil mist and mold influences;
Tilt: heel 22.5°, pitch 10°; swing: roll 22.5°, roll period is 10s; r. There are the influences of vibration and impact in ship operation. JB/T5805-1991
5.2.2 Changes in motor parameters of marine medium frequency generator sets equipped with electronic control devices. The range of changes in basic motor parameters is specified in Table 1. Table 1
Motor type
Rated voltage
Voltage change range
Rated power
Basic parameters
5.3 Material requirements
Power change range
5.3.1 The casing and structural components are usually made of steel. 5.3.2 Metal materials should have a reliable protective layer.
5.3.3 Conductive parts should be made of copper or steel alloy, and their contact parts should have good conductivity. Metals that are directly in contact with each other should take into account electrochemical corrosion.
5.3.4 Insulating materials should have flame retardancy, moisture resistance and mildew resistance. 5.3.5 Toxic and flammable materials such as magnesium and magnesium-based alloys are prohibited. 5.4 Structural requirements
5.4.1 The structure of the electronic control device and the placement of the components should be safe, reliable, easy to install, operate and repair. 5.4.2
The enclosure protection level of the electronic control device should meet the requirements of IP22 in GB4942.2. 5.4.3
All connectors and fasteners of the electronic control device should have measures to prevent the loosening of the moving surface. The electronic control device should be accompanied by a circuit diagram or wiring diagram with wiring numbers, and the terminal of the device should have a durable mark or comply with the circuit diagram or wiring diagram. The components inside the device should be marked with the component code corresponding to the circuit or wiring diagram. 5.4.5
The electronic control device should be equipped with a copper grounding bolt and grounding mark of not less than M6. 5.4.6
The electronic control device should be equipped with a flame-retardant durable mark indicating its purpose and operating position. The colors of the indicator lights and buttons used in the electronic control device shall comply with the provisions of Articles 7.2 and 7.3 of GB6994. 5.4.7
The measuring instruments used in the electronic control device shall comply with the relevant provisions of Article 6.11 of GB7061. 5.4.8
5.5 Performance requirements
5.5.1 Steady-state voltage regulation rate
When the input parameters of the electric motor of the electronic control device and the configured medium-frequency generator set are within the variation range specified in Article 5.2.2, and the generator load is the rated power factor, the generator load changes evenly or sharply from no-load to the rated value, and its steady-state voltage regulation rate shall be ±2%. Steady-state voltage regulation 8. Calculate according to formula (1): U-UN
W×100%
Where:
U is the maximum (or minimum) output voltage (the average value of the three-phase line voltage for a three-phase generator), V; U is the rated voltage, V.
Voltage setting range
JB/T5805—1991
When the input parameters of the electric control device and the configured medium-frequency generator set are within the variation range specified in Article 5.2.2 and the generator load is the rated power factor, the generator load is within any load range from no-load to rated value, and its voltage setting mechanism should have a setting range of ±5% of the rated value for the generator output voltage, and the voltage setting accuracy should not exceed 0.2%. 5.5.3 Transient voltage recovery time
The electronic control device and the configured medium frequency generator shall recover and maintain the time within the steady-state voltage regulation rate range under the following load mutation conditions (when the motor input parameters and load power factor are rated). No-load suddenly add 50% rated load;
50% rated load suddenly add to rated load;
Rated load suddenly unloaded to 50% rated load:
d, 75% rated load suddenly unloaded to 25% rated load. 5.5.4 Cold and hot voltage changes
After the electronic control device and the configured medium frequency generator set run for 3h (within 10min, once allowed to be adjusted) under rated input parameters and rated load (rated power factor), the cold and hot voltage changes of the generator shall not exceed 1% of the rated value. 5.5.5 Steady-state frequency regulation rate
When the input parameters of the DC motor of the medium-frequency generator set driven by a DC motor configured by the electronic control device are within the variation range specified in Article 5.2.2 and the generator load is at the rated power factor, the steady-state frequency regulation rate shall be ±2%
Steady-state frequency regulation rate $, calculated according to formula (2): & = f-fn
Maximum (or minimum) value of the generator frequency, Hz; where:
f% - rated power factor of the generator, Hz.
5.5.6 Transient frequency recovery time
When the medium-frequency generator driven by a DC motor configured by the electronic control device is under the following load mutation conditions (when the motor supply voltage and load power factor are rated), the time for the generator transient frequency to recover and remain within the steady-state frequency regulation rate shall not exceed 0.5s. a.
50% rated load suddenly added at no load;
50% rated load suddenly added to rated load;
Rated load suddenly unloaded to 50% rated load:
d.75% rated load suddenly unloaded to 25% rated load. 5.5.7 Frequency variation in cold and hot states
After the electronic control device and the configured medium-frequency generator set driven by a DC motor have been running for 3 hours under rated input parameters and rated load (power factor rating) (adjustment is allowed once within 10 minutes), the frequency variation in cold and hot states of the generator shall not exceed 1% of the rated value. 5.5.8 Waveform dark change rate
The waveform sinusoidal distortion rate of the rated line voltage of the generator at no load of the electronic control device and the configured medium-frequency generator set shall not exceed 5%. 5.5.9 Temperature rise
When the ambient air temperature of the electronic control device is not more than 50℃ and under rated working conditions, the temperature rise of each component of the electronic control device shall not exceed the provisions of Table 2.
Component name
Electrical control device winding
Temperature rise limit
Measurement method
Resistance method
Component name
Iron core of electronic control device component
Connection terminal
5.5.10 Insulation
With silver anti-corrosion layer
With tin anti-corrosion layer
5.5.10.1 Electrical clearance and creepage distance
JB/T5805-1991
Continued Table 2
Limited to not damaging adjacent insulating parts and electrical and electronic components. 60
Measurement method
Thermocouple method
The distance between live parts of different potentials of electric control devices and between live parts and grounded metal, according to the properties of their insulating materials and working conditions, the electrical and electrical distances corresponding to their working voltages shall comply with the relevant provisions of Article 7.1.3 of GB1497. 5.5.10.2 Insulation resistance
The cold insulation resistance of electric control devices shall not be less than 10Ma. 5.5.10.3 Withstand voltage
The main circuit and secondary circuit of the electric control device shall be able to withstand the withstand voltage test of the voltage value specified in Table 3 for 1min without breakdown or flashover. The test voltage is a single-phase sinusoidal AC voltage of 45-62Hz. b.
Main circuit
Secondary circuit
For electric control devices that have undergone withstand voltage test, the test voltage can be reduced to 85% of the value specified in Table 3. Table 3
Rated insulation voltage
300660
Moisture resistance
Withstand voltage test voltage (AC effective value)
2+1000 but not less than 1500
Electrical control devices should have moisture resistance. After 2 cycles of alternating mixed heat test at 55℃, its performance should meet the following requirements. The insulation resistance should not be less than 1Mn;
Electrical performance should meet the requirements of 5.5.1 and 5.5.5: c.
The appearance of metal plating parts, insulating parts and paint should not be lower than the second level requirements of the appendix of JB839. 5.5.12 Mildew resistance
The insulating parts of the electronic control device should have moisture resistance. After 28d mildew test, the mildew area should not be less than the second level specified in GB2423.16.
5.5.13 Salt spray resistance
Metal plated parts of electric control devices shall be resistant to salt spray. After 48h salt spray test, the appearance change shall comply with the provisions of Table 11 of Article 6.8.3 of GB3783.
5.5.14 Tilt and sway resistance
Electrical control devices shall be resistant to tilt and sway. When tested according to the requirements of Article 5.2.1 d and e, they shall be able to work normally without mechanical damage.
5.5.15 Vibration and impact resistance
JB/T5805-1991
Electrical control devices shall be resistant to vibration and impact. When tested according to the vibration parameters of general cabins specified in Table 4 of Article 3.2.7 of GB6994, they shall be able to work normally without mechanical damage.
5.5.16 Broadband electromagnetic interference prevention
When the electronic control device and the medium frequency engine group driven by a DC motor are in operation, the performance of broadband electromagnetic interference prevention shall comply with the provisions of Appendix V of GJB13.
5.5.17 Additional requirements for electronic control devices with electronic components 5.5.17.1 The electronic components of the electronic control device shall be able to operate normally in the ambient air temperature range of -10 to +55°C, and during operation, they can still operate reliably when the maximum ambient temperature of 70°C lasts for 2 hours. 5.5.17.2 The electronic components of the electronic control device shall be able to operate reliably within the range of changes in the motor input voltage and load capacity specified in Table 4. Table 4
Motor input parameters
Voltage change range
Frequency change range
6 Test method
6.1 General inspection
Recovery time
6.1.1 Check that the paint on the surface of the electric control device box should be dry, uniform, without stains, damage and other defects, and check whether the coating of the parts is good. 6.1.2 According to the provisions of the drawings and technical documents, check whether the appearance and installation dimensions of the electric control device, the symbols of the components and wiring, the grounding device, and the electrical and creepage distances are correct. 6.2 Steady-state voltage regulation rate and steady-state frequency (electric control device equipped with a frequency regulator) test. 6.2.1 When the motor supply voltage and rated frequency of the electric control device and the configured generator set are rated, and the generator is rated load and rated power factor, adjust the setting mechanism so that the generator output voltage and rated frequency are rated. 6.2.2 According to the variation range specified in 5.2.2, when the supply voltage and frequency are the upper limit, rated value and lower limit respectively, test and record the output voltage and frequency of the generator when the load is rated value, 50% rated value and no-load. Its steady-state adjustment rate shall meet the requirements of 5.5.1 and 5.5.5.
6.3 Voltage setting range test
6.3.1 The supply voltage and frequency of the motor of the electronic control device and the configured medium-frequency generator set are rated values. Under the rated load of the generator no-load and rated power factor, adjust the voltage setting mechanism, record the maximum to minimum voltage value of the generator output voltage, and make continuous fine adjustments within this range, and record the setting accuracy. 6.3.2 When the upper and lower limits of the variation range specified in 5.2.2 are reached, repeat the contents of 6.3.1. The voltage setting range and accuracy shall meet the requirements of 5.5.2.
6.4 Transient voltage recovery time and transient rate recovery time test (electronic control device equipped with rated rate regulator). When the motor supply voltage, generator power factor and load of the electronic control device and the configured medium-rated generator set are all rated values, use an oscilloscope to shoot the output voltage waveform and frequency change of the generator under the load mutation conditions specified in 8, b, c, d in 5.5.3 and 5.5.6 to measure the recovery time, and record the generator output voltage and frequency before and after the load mutation. The voltage and frequency recovery time should meet the requirements of 5.5.3 and 5.5.6.
6.5. Test of voltage and frequency variation in cold and hot states (electronic control device equipped with frequency regulator). The electronic control device and the configured medium-rated generator set are operated for 10 minutes under the condition that the motor supply voltage, generator power factor and load are all rated values, and then the generator voltage and rated frequency are adjusted to the rated values, and the voltage and frequency setting mechanism is fixed. The output voltage and frequency values of the generator at this time are recorded as the starting values. The ratio of the deviation of the output voltage and rated frequency of the generator after running for 3 hours with the load and power factor at the rated values to the rated voltage and frequency, that is, the voltage and frequency variation values in cold and hot states, shall meet the requirements of 5.5.4 and 5.5.7. The ambient temperature change during the test shall not exceed 10°C. 6.6 Waveform distortion rate test
Use a distortion meter to measure the waveform of the no-load output voltage of the electronic control device and the configured medium-rated generator set. The waveform distortion rate shall meet the requirements of 5.5.8.
6.7 Insulation resistance test
Before the power-on test, the insulation resistance of the electric control device should be tested. The wiring of the electronic components, capacitors and meters should be removed first. The insulation resistance of the power supply terminal to the box shell measured with a 500V megohmmeter should meet the requirements of 5.5.10.2. 6.8 Withstand voltage test
First remove the wiring of the electronic components, capacitors and meters in the electric control device, and use a high-voltage tester with a capacity of not less than 2kVA to perform the withstand voltage test in accordance with the requirements of 5.5.10.3.
6.9 Temperature rise test
Except as specified in this standard, the test shall be carried out in accordance with the requirements of GB998. 6.9.1 The temperature rise test shall be carried out under normal atmospheric conditions, and the ambient temperature change during the test shall not exceed 10℃. 6.9.2 The door (cover) of the electric control device shall be closed, and the surrounding environment of the device under test shall not be intruded by light, heat radiation or airflow that may affect the temperature rise test.
6.9.3 The electronic control device and the configured medium frequency generator set shall be operated continuously under the rated supply voltage and load until the temperature rise reaches a stable value (temperature change does not exceed 1℃/h). The temperature rise of the coil shall be measured by the resistance method, and the temperature rise of the core and the terminal shall be measured by the thermocouple. The requirements of 5.5.9 shall be met. While recording the measured stable temperature rise value, the ambient temperature shall be recorded. 6.10 Broadband electromagnetic interference test
The broadband electromagnetic interference test of the electronic control device shall be carried out in accordance with the provisions of Appendix V of GJB13 and shall meet the requirements of 5.5.16. 6.11 High temperature test
6.11.1 The high temperature test method of GB2423.2 shall be followed. The electronic control device shall be placed in the effective working space of the test room at room temperature, and run at no load with the configured generator set at the rated power supply voltage. Then the test room temperature shall be raised to 50±2℃ at a rate of 0.7~1℃/min and maintained for 16 hours. In the last hour, the performance test shall be carried out according to the requirements of 6.2 and 6.3, and shall meet the requirements of 5.5.1, 5.5, 2 and 5.5.5. 6.11.2 The electronic components of the electronic control device shall be raised to 55±2℃ and maintained for 16 hours. The performance test and requirements are the same as those of 6.11.1. Then the temperature shall be raised to 70℃ at the same rate and maintained for 2 hours to still work reliably. 6.12 Low temperature test
Perform the low temperature test method of GB2423.1. Place the electronic control device in the effective working space of the test room at room temperature. Lower the temperature of the test room by -10±3℃ at a rate of 0.7~1℃/min and keep it for 16h. In the last 0.5h, start the medium frequency generator set with no load at the lower limit of the motor supply voltage. Then perform the performance test according to the requirements of 6.2 and 6.3. It should meet the requirements of 5.5.1, 5.5.2 and 5.5.5.
6.13 Moisture resistance test
Perform the moisture test method of GB2423.4. After the test cycle, take the electronic control device out of the wet heat test box and restore it under normal atmospheric conditions. It is allowed to wipe off the water stains on all accessible surfaces and components of the electronic control device. Measure the insulation resistance within 1h. Complete the performance test within the second hour. It should meet the requirements of 5.5.11. 6.14 Long micro test
The mildew test of the insulating parts of the electric control device shall be carried out according to the mildew test method of GB2423.16. 6.15 Salt spray test
The salt spray test of the metal parts of the electric control device shall be carried out according to the salt spray test method of GB2423.17. 6.16 Tilt test
The electric control device shall be tilted in the four directions of front, back, left and right with the horizontal axis according to the angle specified in 5.2.1 d, and run with the configured medium frequency generator set at no load for 15 minutes at the rated power supply voltage, and it shall be able to work normally. 6.17 Swing test
JB/T5805—1991
The electric control device shall be fixed on the special swing test bench in the normal working position, and run with the configured medium frequency generator set at no load at the rated power supply voltage, and swing in the front, back, left and right directions for 15 minutes according to the provisions of 5.2.1 e, and it shall be able to work normally. 6.18 Vibration test
The vibration test of the electronic control device shall be carried out in accordance with the test method of GB7094. First, the vibration response inspection shall be carried out twice with the alarm parameters specified in Article 5.5.15, and then the vibration resistance test shall be carried out for 2 hours. The electronic control device and the matched medium-frequency generator set shall operate normally at no-load under the rated power supply voltage, without mechanical damage and loose connections, and shall meet the requirements of Article 5.5.15. 6.19 Shell protection test
The shell protection performance test of the electronic control device shall be carried out in accordance with the method specified in GB4942.2 and shall meet the requirements of Article 5.4.2. 7 Inspection rules
7.1 All electronic control devices shall pass the test and inspection items specified in this standard before leaving the factory, and shall be accompanied by a product certificate and instruction manual.
7.2 Inspection classification
Factory test:
Periodic test;
Type test.
7.3 Factory Test
Electrical control equipment shall be tested before leaving the factory. The test items are specified in Table 5. Table 5
General inspection
Insulation resistance test
Withstand voltage test
Steady-state voltage regulation and steady-state frequency regulation test Voltage setting range test
Transient voltage recovery time and transient rated power recovery time test Hot voltage and rated power change test
Waveform distortion rate test
Broadband electromagnetic interference prevention test
Temperature rise test
High temperature test
Low temperature test|| tt||Tide test
Long test
Salt test
Tilt and swing test
According to dynamic test
Enclosure protection test
Periodic test
Factory test
Periodic test
Type testbzxz.net
JB/T5805-1991
For the electric control devices produced in batches continuously, the periodic test shall be carried out every five years, and the periodic test items shall be specified in Table 5. 7.5 Type test
Type test shall be carried out in any of the following situations, and the test items shall be specified in Table 5. After the trial production of new products is completed:
When the changes in design or process are sufficient to cause changes in certain parameters and characteristics, type tests of relevant items must be carried out; b.
When the relevant national quality supervision departments make requirements. c
8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The electronic control device shall have a flame-retardant, durable, clear nameplate, firmly fixed in a conspicuous position on the electronic control device. The nameplate shall indicate the following items and data corresponding to the configured Zhonglai generator set. a.
Manufacturer name;
Electronic control device name;
Electronic control device model:
Rated power, kW;
Rated voltage, V;
Rated current, A;
Rated frequency, Hz;
Standard number;
Production number and factory date;
Quality.
8.2 Packaging
Packaging shall comply with the relevant provisions of JB2759. Before packaging, the parts of the product and the attached spare parts that are not protected by paint or electroplating shall be temporarily sealed and protected. 8.2.1
The packaging should be strong and sturdy, suitable for multiple loading and unloading transportation, and have measures to prevent rain. Packing box markings
Shipping station and receiving station;
Manufacturer name and receiving unit name;
Electronic control device model and factory number;
Net weight of electric control device and gross weight of the whole box: box size;
Marked with words or symbols such as "Do not invert" and "Anti-tracing"; Lifting method and position of the whole box;
In addition to marking the above required items, the accessory box must also mark the random part number and corresponding instructions. 8.3 Random documents
Product certificate;
Instruction manual;
Spare parts list;
Other documents required by the user (should be specified in the contract). d.
8.4 Transportation and storage
The transportation and storage of the electronic control device shall comply with the relevant provisions of JB3284. The packaging box shall not be attacked by rain during transportation and storage. The product shall be placed in a warehouse without rain or snow intrusion, with good air circulation, relative humidity not more than 90%, and temperature between -10 and +50℃. 8.5 Warranty period
JB/T5805-1991
When the user correctly stores and uses the electronic control device in accordance with the manufacturer's instructions, the manufacturer shall ensure that the electronic control device can operate well within one year of use, but no more than two years from the date of shipment from the manufacturer. If the electronic control device is damaged or cannot work normally due to poor manufacturing quality within this specified period, the manufacturer shall repair or replace parts or electronic control devices for the user free of charge. 9
The electronic control device shall provide the following spare parts, the quantity of which shall be specified in the product technical documents. Spare plug-in board for regulator;
Related electronic components:
Fuse core.
Additional remarks:
This standard was proposed and managed by the Shanghai Electric Science Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by Shanghai Huayi Electric Factory. The main drafter of this standard was Wu Jiafa.
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