CB/T 3152-1992 Technical requirements for automatic control devices of ship power stations

This standard specifies the basic performance and indicators of ship power station automatic control devices and the basic requirements for testing and acceptance. This standard applies to the automatic control system of ship power stations composed of diesel generator sets, or diesel generator sets and steam turbine generator sets. CB/T 3152-1992 Technical conditions for ship power station automatic control devices CB/T3152-1992 Standard download decompression password: www.bzxz.net

Shipbuilding Industry Standard of the People's Republic of China
CB/T3152--92
Technical Conditions for Automatic Control Devices of Ship Power Stations Issued on March 7, 1992www.bzxz.net
Issued by China State Shipbuilding Corporation
Implemented on October 1, 1992
Shipbuilding Industry Standard of the People's Republic of China
Technical Conditions for Automatic Control Devices of Ship Power Stations CB/T3152--92
Classification Number: U62
Replaces CB*3152-83
This standard refers to the relevant provisions of the International Electrotechnical Commission Standard IEC92--504 Album - Control and Measuring Instruments" and IEC92--504A "Album - Control and Measuring Instruments Appendix - Special Control and Measuring Instruments". 1 Subject Content and Scope of Application
This standard specifies the basic performance and indicators of automatic control devices of ship power stations (hereinafter referred to as devices) and the basic requirements for testing and acceptance.
This standard applies to the automatic control system of a marine power station composed of a diesel generator set, or a diesel generator set and a steam turbine generator set.
2 Reference standards
GB2423.1 Basic environmental test regulations for electric and electronic products Test A, low temperature test method GB2423.2 Basic environmental test regulations for electric and electronic products Test B: high temperature test method
GB2423.4 Basic environmental test regulations for electric and electronic products Test Db: alternating damp heat test method GB2423.10
GB2423.16
GB2423.17
Electrical and electronic Basic environmental test procedures for products Test Fc: Vibration (sinusoidal) test method Basic environmental test procedures for electrical and electronic products Basic environmental test procedures for electrical and electronic products GB4208 Classification of enclosure protection levels
China Classification Society "Rules for Classification and Construction of Seagoing Steel Ships" 3 Terms
3.1 Automatic control
Test J: Long-needed test method
Test Ka: Salt spray test method
Control method that does not require operators to directly operate the final control equipment. 3.2 Centralized control
Control method in which all operations of the controlled equipment are performed on the control device or the main distribution board. 3.3 Machine-side operation
Control method that uses a mechanism located on or near the controlled equipment to perform operations. 3.4 Automatic control of heavy load input
Before heavy load input, the reserve margin of the power station is first inquired to decide whether to directly input heavy load or to wait for the standby unit to be started and connected to the grid before inputting heavy load. 3.5 Failure safety
When a fault occurs in the device, its output can automatically reach the predetermined safe state. 3.6 Frequency modulation accuracy
The difference between the highest or lowest steady-state frequency of the system voltage and the rated frequency of the system as a percentage of the rated frequency of the system. f-×100%
Approved by China State Shipbuilding Corporation on March 7, 1992fn
（1）
Implemented on October 1, 1992
CB/T3152-92
Where: f—the highest or lowest steady-state frequency of the system, Hz; fv—the rated frequency of the system, Hz.
4 Technical requirements
4.1 Environmental conditions
The device should work normally under the following environmental conditions. 4.1.1 Ambient temperature
0～55℃, and can withstand a high temperature of 70℃ for 2h without failure. 4.1.2 Temperature
When the temperature is equal to or lower than 40C, the relative humidity is 95%±3%; when the temperature is higher than 40C, the relative humidity is 70%±3%. 4.1.3 Vibration
When the vibration frequency is generally 2.0~13.2Hz, the displacement amplitude is ±1.0mm; when the vibration frequency is 13.2100.0Hz, the acceleration amplitude is ±6.86m/s*, when the equipment weight M exceeds 100kg, the acceleration amplitude is ±6-8m/s*, but at least ±3.43m/s*. M
When installed on reciprocating machinery (such as diesel engines), the vibration frequency is within the range of 2.0~25.0Hz, the displacement amplitude is ±1.6mm, and the vibration frequency is within the range of 25.0~100.0Hz, The acceleration amplitude is soil 39.2m/s*. The sensor installed on the exhaust pipe of the diesel engine shall comply with the special provisions of the "Rules for Classification and Construction of Seagoing Steel Ships". 4.1.4 Tilt and roll
It shall be able to tilt 22.5° in all directions and the vertical linear acceleration shall be ±9.8m/s\. 4.1.5 The surrounding air contains salt spray, oil mist and mold. 4.2 Power supply
4.2.1 The power supply of the device shall be supplied by the ship's power grid and batteries at the same time. 4.2.2 The power supply of the device is also allowed to be supplied by batteries alone. 4.2.3 The voltage and frequency of the power supply shall vary within the range of Table 1. Table 1
Power supply type
Battery
Steady-state change
Transient change
Recovery time
Steady-state change
If the device is not connected to the battery during battery charging, its voltage change is ±20%. 4.3 Control functions
Transient changes
Recovery time
The control functions of the device include the following items, and the user is allowed to select some of the functions according to the use requirements. The specific details shall be specified in the order contract.
4.3.1 The device shall be able to easily switch the operating position, and an indication of the switching of the operating position shall be provided on the panel of the device or at an appropriate position of the centralized operating position.
4.3.2 The device shall be provided with a switch for selecting the mode of automatic control, centralized control and machine-side operation, and the machine-side operation shall take precedence over centralized control, which takes precedence over automatic control.
4.3.3 Automatic start of the unit
4.3.3.1 The start procedure of the unit shall be specified in the corresponding product technical conditions according to the operating steps and warm-up requirements of the unit. 2
CB/T3152-92
4.3.3.2 The unit shall start automatically when one of the following situations occurs. When the power station is started, for the device with a pre-set priority unit, the priority unit should be started first. a.
When the power station load increases to a certain value, or according to the use requirements, the standby unit is started according to the prescribed procedure. When the centralized control method has a manual start command.
d.When the power grid loses power, it should meet the time from the automatic start of the standby unit to its restoration of power supply after being put into the grid within 45s. When a running unit fails, such as the voltage exceeds the allowable value, the frequency is too low, the thermal parameters exceed the allowable value, etc. e.
4.3.3.3 When the unit is automatically started, if the start of the unit is not successful, the device should automatically generate the next start command; when the unit is continuously started, the number of starts should not exceed three times. 4.3.3.4When the device controls more than one unit, if the automatic start of a unit fails, the device should automatically transfer the start command to the next unit.
4.3.3.5 There should be indications for the automatic start and operation of the unit. 4.3.3.6 When the power station is in a transient process, such as when a large-capacity asynchronous motor is started, it should not cause the unit to start automatically. 4.3.4 Automatic grid connection and operation of the unit
4.3.4.1 When there is no power in the power grid, the unit that has been successfully started should automatically connect to the grid and operate immediately after the frequency and voltage reach a certain value, and maintain the frequency regulation accuracy of the power station within the following specified range. The user can choose one of them according to the use requirements. The frequency regulation accuracy is ±0.6%;
b. The frequency regulation accuracy is ±1%.
4.3.4.2 When the grid has electricity (not shore power), the units that have been successfully started shall automatically connect to the grid and realize parallel operation when the frequency and voltage meet the requirements of Article 4.3.4.3, and maintain the frequency regulation accuracy of the power station and the active power distribution difference between the units in parallel operation within the following specified ranges. Users can choose one of them according to their use requirements. a. The frequency regulation accuracy is ±0.6%, the reactive power distribution difference is within 10%, and the active power distribution difference is within 5% (when Class 1 accuracy is required).
The frequency regulation accuracy is ±1%, the reactive power distribution difference is within 10%, and the active power distribution difference is within 10% (when Class 1 accuracy is required).
When automatic quasi-synchronous parallel connection is adopted, its main performance parameters are: 4.3.4.3
The allowable voltage difference is ±5%~±10% of the rated value; b.
The allowable frequency difference is 0.15~0.5Hz adjustable;
The leading time is 0.1~~0.35s adjustable.
4.3.5 Automatic decoupling and shutdown of the unit
4.3.5.1When the load of the power station is reduced to a certain value, or according to the use requirements, after the load is smoothly and automatically transferred, the designated unit will automatically decoupling and shut down.
4.3.5.2 When a general fault occurs in the running unit, it should be automatically disconnected and shut down after smoothly and automatically transferring the load. 4.3.5.3 When the running unit has a serious fault such as overspeed reaching 112%~115% of the rated speed, or the oil pressure is too low, it should automatically shut down. However, when the oil pressure of the emergency diesel generator set is too low, only an alarm signal is provided. 4.3.6 It has the function of graded unloading.
4.3.7 It has the function of automatic control of heavy load input. 4.4 Safety function of the device
4.4.1 Designed according to the principle of fault safety. 4.4.2 When the device loses power, it cannot affect the safe operation of the unit and the main switchboard; at the same time, various manual operations should be able to be implemented beside the machine. 4.4.3 When the power supply of the voltage sensor of the start command is interrupted, measures should be taken to prevent the generator circuit breaker from being mistakenly closed. 4.4.4 In an emergency, the device has measures for manual emergency shutdown. 4.4.5 A reliable interlocking device shall be provided to prevent the prime mover from starting automatically in the event of a possible hazard. 4.4.6 The device shall have measures to prevent two or more generator circuit breakers from being closed at the same time. 3
CB/T3152-92
When the generator circuit breaker trips due to a short circuit in the power system, the device shall only allow the tripped generator circuit breaker to be closed once, or reliably and automatically lock.
4.4.8 The device shall enable the controlled equipment to operate stably within the normal working range and shall not cause instability in the operation of the controlled equipment. 4.4.9 The device shall have measures to ensure the safety of the personnel near the machine. 4.4.10 The electrical circuits of the control system and the alarm system shall be relatively independent, and the safety system shall also be as independent as possible. 4.4.11 The device shall have means to check whether the sound and light alarm device and the indicator light are damaged at any time. 4.5 Alarm
4.5.1 The fault alarm items are shown in Table 2, and the user can increase or decrease them according to the needs of use. The details shall be specified in the order contract. Table 2
Equipment name
Diesel engine
Steam turbine
Generator
Main switch
Graded unloading
Equipment power
Supervision items
Lubricating oil pressure
Lubricating oil temperature
Outlet water temperature
Starting air pressure or battery voltage
Lubricating oil pressure
Oil temperature
Condenser vacuum||tt| |Axial displacement
Insulation resistance to ground
4.5.2 The alarm circuit shall have the following functions
Alarm status
Low, too low
Low, pressure loss
Low, too low
When tripping
When loading
When fault
When failure
When the unit is started and stopped, the relevant parameter values ​​of the unit are in the normal establishment and disappearance process, and no false alarm is allowed. When the alarm is given, the sound and flash signals shall be issued at the same time. After manual silencing, the flash becomes flat light; after the alarm response, when a new fault occurs before the original fault is eliminated, the sound and light alarm shall be activated again. c.
When the power station has a fault listed in Article 4.5.1, when necessary automatic processing as listed in Article 4.3 is made, the corresponding alarm device shall issue an extended alarm signal that can be grouped. The alarm display should be able to distinguish the fault content.
4.6 The device should have anti-interference ability.
4.7 Structure and materials
4.7.1 The device can be made into a box for centralized installation, or it can be made into several independent boxes for decentralized installation4
CB/T3152-92
4.7.2 The shell protection type of the device should be adapted to the installation site. 4.7.3
The structure and layout of the device should take into account the convenience of maintenance. 4.7.4
The printed circuit board components and connectors in the device should have measures to prevent misalignment, or add obvious identification marks. 4.7.5 The incoming and outgoing lines of the device should be clearly marked. 4.7.6
The internal wiring of the device should have easy-to-identify marks. The metal shell of the device should have good grounding measures. The potentiometer installed on the panel for user adjustment should have locking measures. The electrical materials used in the device should be durable, flame-retardant and moisture-resistant. 4.7.9
5 Test method
5.1 Appearance inspection
There should be no cold soldering or desoldering on the welded parts; the connectors should be reliably connected; the surface coating should not have abnormal phenomena such as cracking, peeling, abrasions, discoloration, etc. Each printed circuit component should be able to be flexibly inserted or removed. The installation and wiring of the components in the device should comply with the requirements of the drawings. 5.2 Functional test
Type test should use the matching machine test method to check the function of the device, while the factory test allows the function of the device to be checked by simulation test, and its performance should comply with the provisions of this standard. 5.3 Insulation resistance measurement
When measuring, the semiconductor device and printed circuit component should be disconnected and the measurement should be carried out at the power supply end. The insulation resistance should at least comply with the requirements of Table 3. Table 3
Rated voltage
Megohmmeter voltage level
Note: The insulation resistance of multi-circuit products is specified by the product technical conditions. 5.4 Withstand voltage test
Insulation resistance.MO
Semiconductor devices and printed circuit components should be disconnected during the test. The AC 50Hz test voltage specified in Table 4 should be applied between the live parts of the test device and the ground for 1 minute without breakdown and flashover. Table 4
Rated voltage, V
5.5 High temperature test
Test voltage, V
1000 plus 2 times the rated voltage, but not less than 2000 This test is carried out on equipment installed in control consoles and cabinets according to the method specified in GB2423.2. Severity: 70C for 2h, 55C for 4h, 0..5h before the end of the 55℃ high temperature test, the logic function of the device is simulated and checked, which should comply with the provisions of this standard. Then raise the test temperature to 70℃, keep it warm for 2h, and simulate the logical function of the device within 0.5h before the end of the test, and it should not fail.
5.6 Low temperature test
This test is carried out on the equipment installed in the control console and cabinet according to the test method specified in GB2423.1. Severity 0C, lasting 4h, simulate the logical function of the device within 0.5h before the end of the test, and it should be normal. 5.7 Wet heat test
Carry out according to the test method specified in GB2423.4. 5
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Severity: 55C, 2d. The relative humidity in the cooling stage shall not be less than 85%. After the test, perform a 2h recovery process under normal atmospheric conditions, and allow the water stains on the surfaces and components that the device can contact to be wiped off. Before the end of the recovery, measure the insulation resistance of the device first, and then perform a simulated test and check on the logical function of the device, which should meet the requirements of this standard.
5.8 Collar tilt and swing test
The logic function of the power-on simulation inspection device shall comply with the provisions of this standard. 5.8.1 Tilt
The tilt test is carried out at an angle of 22.5° in the front, back, left and right directions for 15 minutes each. 5.8.2 Swing
The swing test is carried out at an amplitude of 22.5° and a period of 10s in the front, back, left and right directions perpendicular to each other for 15 minutes each. 5.9 Vibration test
It is carried out in accordance with the test method specified in GB2423.10. The test frequency and amplitude shall comply with the provisions of 4.1.3 of this standard. Duration: Scanning vibration for 90 minutes in each axis direction. If there is resonance, it shall withstand vibration for 90 minutes at the most serious resonance frequency. 5.10 Protection type test
It is carried out in accordance with the method specified in GB4208. After the test, it shall meet the requirements of the corresponding shell protection level. 5.11 Salt spray resistance test for metal parts
Carry out a 96h salt spray resistance test according to the method specified in GB2423.17. 5.12 The mildew resistance test for insulating material parts shall be carried out according to the method specified in GB2423.16. The test cycle is 28 days. After the test, only the appearance of the parts shall be inspected. The allowed mildew growth level is level 2. 5.13 Anti-interference test of the device
Put the device in a shielded room with a shielding efficiency of 80-100dB, power it on (add analog signal), and apply the following interference. The device should work reliably.
Power supply transient interference: The interference pulse should be injected into the test product symmetrically and asymmetrically through the isolation transformer, with a pulse peak of 400V (1~6Hz for low-voltage products.
100V), a width of 10~20μs, and a frequency of 3
5.14 Power supply fluctuation operation test
According to the indicators specified in Item 4.2.3 of this standard, the power supply fluctuation test shall be carried out. Except for the transient working condition, each other working condition shall be tested for 15 minutes, and the device shall work reliably.
5.15 Transportation test
5.15.1 Collision test
After packaging the device, fasten it to the test bench with a rope and collide vertically 1000 ± 10 times, with an acceleration of 100 ± 10 m/s; the pulse duration is 11 ± 2 ms, and the pulse repetition frequency is 1~. The device that cannot use the collision bench should be transported for 200 km at a speed of 30 km/h on a Class 3 road, or 300 km at a speed of 40 km/h on a Class 2 road.
After the test, the device should be able to work normally without damage, and the fasteners should not be loose. 5.15.2 Drop test
Free drop test
After packaging the device, the bottom front side falls freely on a smooth and hard cement floor or steel plate four times, and the drop height is: 250 mm for weight less than or equal to 100 kg; 100 mm for weight greater than 100 kg.
b. Corner drop test
CB/T3152-92
Put the packaged device on a smooth and hard cement or steel plate, with one corner of the bottom touching the ground, and the bottom forming a 30° angle with the ground. Let the product fall freely, and perform the test once for each corner of the bottom. The device after the drop test should be able to work normally without damage, and the fasteners should not be loose. 6 Inspection rules
6.1 Product inspection is divided into factory inspection and type inspection. 6.2
Each device should be inspected before leaving the factory, and it can only be shipped after passing the inspection. Factory inspection items
Appearance inspection;
Function test:
Insulation resistance measurement;
Withstand voltage test.
Type inspection should be carried out in case of any of the following situations. 6.4
Trial-production and identification of new products or old products transferred to the factory for production; after formal production, if there are major changes in structure, materials, and processes that may affect product performance; during normal production, regular inspections should be carried out or after a certain amount of cumulative production; when the product is resumed after a long period of suspension; when there is a significant difference between the factory inspection results and the last type inspection; when the national quality supervision agency proposes a type inspection requirement. Type inspection items
All items of factory inspection;
High temperature test;
Low temperature test;
Wet heat test;
Tilt and swing test;
Vibration test;
Protection type test;
Salt spray resistance test of metal parts coating; Fungus resistance test of insulating material parts; Device anti-interference test:
Power supply fluctuation operation test;
Transportation test.
Marking, packaging, transportation, storage
The device should be equipped with a durable nameplate, and the following information should be noted on the nameplate: a.
Manufacturer;
Product name;
Model:
Device power supply: AC voltage, frequency, DC voltage: total weight;
Dimensions: length × height × width;
Manufacturing date;
h. Factory number;
i. Ship inspection mark.
7.2 Packaging
CB/T3152-92
7.2.1The device and its spare parts should be firmly fixed in the packaging box and have good moisture-proof measures. 7.2.2
The random documents should also be packaged in moisture-proof packaging and supplied with the product. The accompanying documents include: Product Certificate:
Operation and Maintenance Instructions;
Device Installation Drawing;
Device Circuit Diagram or Wiring Diagram;
Spare Parts List;
Packing List.
The packing box should have the following marks:
Product Name:
Shipping Unit Name;
Address and Name of Receiving Unit;
Packing Date;
Box Dimensions: Length × Width × Height;
Weight;
Mark: "Handle with Care", "Prevent Moisture", and indicate the symbol that it cannot be inverted. 7.3 Storage
Packaged products should be stored in a dry environment where the surrounding air does not contain acidic, alkaline or other corrosive and explosive gases. 8 Warranty period
Under normal storage, use and maintenance conditions, the warranty period is: one year after shipment, but the longest is eighteen months from the date of leaving the factory.
Additional remarks:
This standard was proposed by the 603rd Institute of China State Shipbuilding Corporation. This standard was drafted by the 704th Institute of China State Shipbuilding Corporation and the Lanzhou Power Vehicle Design Institute. The main drafter of this standard is Lei Yinghui.3 Storage
Packaged products should be stored in a dry environment where the surrounding air does not contain acidic, alkaline or other corrosive and explosive gases. 8 Warranty period
Under normal storage, use and maintenance conditions, the warranty period of the device is: one year after shipment, but the longest is eighteen months from the date of leaving the factory.
Additional remarks:
This standard was proposed by the 603rd Institute of China State Shipbuilding Corporation. This standard was drafted by the 704th Institute of China State Shipbuilding Corporation and the Lanzhou Power Vehicle Design Institute. The main drafter of this standard is Lei Yinghui.3 Storage
Packaged products should be stored in a dry environment where the surrounding air does not contain acidic, alkaline or other corrosive and explosive gases. 8 Warranty period
Under normal storage, use and maintenance conditions, the warranty period of the device is: one year after shipment, but the longest is eighteen months from the date of leaving the factory.
Additional remarks:
This standard was proposed by the 603rd Institute of China State Shipbuilding Corporation. This standard was drafted by the 704th Institute of China State Shipbuilding Corporation and the Lanzhou Power Vehicle Design Institute. The main drafter of this standard is Lei Yinghui.
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