Description
P0997MD FOXBORO Input/Output Module
P0997MD FOXBORO Input/Output Module
Module Clips Drive controller servo moto
P0997MD PDF
P0997MD HS:8541300000
P0997MD Weight: 2.0kg
P0997MD Size: 40 * 30 * 20cm
P0997MD FOXBORO, also known as Foxboro, is a well-known brand in the field of industrial automation, belonging to Invensys Group. It was later acquired by Schneider Electric in January 2014.
As a world leading provider of industrial control products and solutions, FOXBORO”s products are widely used in multiple industries such as oil and gas, petrochemicals, electricity, pulp and paper,
food and beverage, water and wastewater treatment, and serve tens of thousands of factories worldwide.
1、 Products and Services
The products and services provided by P0997MD FOXBORO include but are not limited to:
Planning and Scheduling: Help enterprises optimize production plans and improve production efficiency.
Advanced control and optimization: Through advanced control algorithms, optimize the production process.
Human Machine Interface: Provides an intuitive and user-friendly interface for operators to monitor the production process.
Process control: including DCS (distributed control system), etc., to achieve precise control of the production process.
Process measurement: Provide high-quality sensors and transmitters for measuring process variables such as temperature, pressure, flow rate, and liquid level.
Security Management: Provide comprehensive security solutions to ensure the safety and reliability of the production process.
In addition, FOXBORO also provides services such as condition monitoring, training simulation, alarm management, network security, and enterprise asset management to help
customers balance the availability and utilization of personnel, equipment, energy, and inventory, thereby achieving excellent economic value.
2、 Technological innovation
P0997MDinstructions P0997MDTechnical Manual
P0997MD FOXBORO has always been committed to technological innovation and product upgrades. For example, its DCS system continuously introduces advanced technology,
and the I/A series transmitters introduce intelligent automation into the field, providing remote diagnosis and maintenance information. The Foxboro Evo process automation system
collaborates with world leading processing companies to improve efficiency, productivity, and reliability at every operational level it controls.
3、 Market performance
P0997MD FOXBORO enjoys a high reputation in the global industrial automation field with its high-quality products and professional services. Its products have been adopted by tens of
thousands of factories worldwide, including large refineries, gas plants, petrochemical plants, power plants, and more. At the same time, FOXBORO actively explores emerging markets and provides customized solutions for customers in different regions.
4、 Company Culture
P0997MD FOXBORO adheres to the concept of “creating quality with quality and winning the future with integrity”, and is committed to providing customers with high-quality products and services.
The company focuses on technological innovation and talent cultivation, and has a high-quality R&D team and a professional service team. At the same time, FOXBORO actively fulfills its social
responsibility, pays attention to environmental protection and sustainable development.
In summary, P0997MD FOXBORO is a leader in the field of industrial automation, winning the trust and praise of global customers with its high-quality products, professional services, and continuous technological innovation.
Contact: Mr. Lai
Wechat:17750010683
Whats app:+86 17750010683
Skype:+86 17750010683
QQ: 3221366881
3221366881@qq.com
Guoxin Yangdian ABB excitation regulator technology upgrade
1 Overview
The 2×630Mw coal-fired units (units #3 and #4) of Jiangsu Guoxin Yangzhou Power Generation Co., Ltd. were put into commercial operation in September 2006 and January 2007 respectively. The generator excitation system is a complete set of excitation system equipment imported from Switzerland provided by Shanghai ABB Engineering Co., Ltd. The supporting excitation system is ABBUnitrol5000. For more than 10 years of operation, jumper Hall elements have been disturbed and tripped, and ARCnet communication faults have tripped. and other problems, and as the use time increases, the failure rate increases significantly, and the stability of the excitation system gradually decreases. According to the needs of unit capacity increase, efficiency improvement and upgrading, the company has simultaneously upgraded the excitation system, upgraded the original Unitrol5000 to the latest Unitrol6800 system, and also adjusted the original components such as resistance-capacitance absorbers and jumpers. Make sure the parameters match.
2 Advantages of the modified excitation system
2.1 The reliability of the three-channel input power supply redundancy mode in the control part is improved
The power supply of the control part adopts three input power supplies with AC or DC redundancy mode, thus improving the reliability of the system. Each control module is equipped with two independent power supplies for power supply, which significantly improves the redundancy of the power supply. In this way, the power supply of the control module can be disconnected separately to facilitate online replacement of faulty components. Secondly, since the boards are installed independently and each board is powered by dual power supplies, the power supply has an independent switch, making online maintenance work safer.
2.2 Fiber optic redundant internal communications
Unitrol6800 uses optical fiber redundancy for internal communication, which avoids the problem of downtime caused by ARCnet serial communication in the Unitrol5000 system. The controller can independently transmit the trigger pulse of the thyristor to the rectifier bridge. In conjunction with optical fiber transmission, the trigger pulse can be generated in each rectifier bridge, making the internal communication more resistant to interference.
2.3 Eliminate the security risks brought by the public PSl board in the original system to the system
Unitrol6800 uses a rectifier cabinet to separately collect the synchronization voltage, excitation voltage and excitation current, which reduces the safety hazards caused by the public PsI board. In the rectifier bridge of Unitrol6800, the AC side phase sequence detection function is added. The fan power supply uses the independent power distribution method of each rectifier cabinet. The fan power supply loop control system of all rectifier cabinets is inside the rectifier cabinet, ensuring that each rectifier cabinet is It can independently control the fan in the cabinet, thereby solving the problem of power loss in the fan circuit of Unitrol5000 due to relay failure and avoiding non-stop accidents.
In the rectifier bridge of the Unitrol5000 system, a Hall element is installed on the rectifier side to measure the excitation current of the rectifier bridge. The current sharing of the excitation current by the system must be carried out through a current sharing test. However, the characteristics of the Hall element itself prevent it from being based on the load. changes in dynamic current sharing. To this end, in the Unitrol6800 system, a CT is installed on the AC incoming line side of the rectifier cabinet to sample and calculate the excitation current. The linearity of the CT is very high, which ensures that the excitation system can perform dynamic current sharing according to the load changes of the working conditions, allowing Each rectifier cabinet of the system can be more balanced.
In the rotor overvoltage protection of the Unitrol6800 system, a current relay is used to detect the current. Since the anti-interference ability of the current relay is stronger than the Hall element of the Unitrol5000, it can avoid false alarms of the rotor overvoltage in the excitation system caused by external interference and avoid power generation. The occurrence of unit non-stop accidents.
3 Renovation Plan
The steam turbine generator unit has been modified to increase capacity and improve efficiency. The rated output of the steam turbine unit has been increased from 630Mw to 650Mw, the self-set rated current of the generator has been increased from 17495A to 19245A, and the rated voltage of the excitation rotor has also been increased from 400.1V to 428V. The excitation current increases from 4387.4A to 4697A. In this transformation, the cabinet structure of the excitation system remains unchanged. The system upgrade is achieved by upgrading boards, updating equipment and upgrading the control system. During the transformation process, it is necessary to ensure that the generator capacity is increased, and the excitation system needs to provide more excitation current and voltage to ensure the stable operation of the unit by increasing the deexcitation capacity.
3.1 Adjustment of demagnetization and AC side voltage absorption module
Since the generator is upgraded from 630Mw to 650Mw, the demagnetization and AC side overvoltage absorption modules need to be adjusted. For the adjustment of the capacity of the excitation de-excitation resistor, the capacity calculation of the de-excitation resistor needs to be calculated based on the most serious de-excitation state of the generator. The demagnetizing resistor is a siC nonlinear resistor. The number of resistors is changed from 5 to 6. The capacity of the demagnetizing resistor is 6MJ, which meets the needs of the excitation system for demagnetizing. In the modification of the demagnetization circuit jumper, the voltage resistance level of the thyristor was improved by replacing the jumper and BoD board. Regarding the transformation of the overvoltage absorption module on the AC side of the rectifier bridge, according to the design of the rectifier bridge of the ABB excitation system, the overvoltage absorption modules on the AC side of the rectifier bridge were changed to five groups in parallel.
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1.Has been engaged in industrial control industry for a long time, with a large number of inventories.
2.Industry leading, price advantage, quality assurance
3.Diversified models and products, and all kinds of rare and discontinued products
4.15 days free replacement for quality problems
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YOKOGAWA – Servo module, control cabinet node unit
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