Description
UUD148AE01 3BHE014185R0001 Модуль ввода / вывода ABB
Швейцария, и входит в десятку крупнейших швейцарских транснациональных корпораций.UUD148AE01 3BHE014185R0001
химическая, нефтехимическая, фармацевтическая, целлюлозно – бумажная, нефтепереработка; Оборудование приборов: электронные приборы, телевизоры и оборудование для передачи данных,
генераторы, гидротехнические сооружения; Каналы связи: интегрированные системы, системы сбора и распространения;UUD148AE01 3BHE014185R0001Строительная промышленность: коммерческое и промышленное строительство.
3.2 Upgrading of regulators and control systems
For the upgrade of the regulator, the original excitation control system cabinet structure is retained, and the entire system is upgraded by upgrading the board card.
Among them, the CoB main board, MUB measurement board, F10 input and output board, and LCP local control panel were replaced with the PEC800 controller,
CCM measurement control interface board, CIo comprehensive input and output board, and ECT excitation system control terminal in the Unitrol6800 system respectively.
For the upgrade of the power cabinet, since the power of the excitation system will not change during the transformation, the N-1 redundant configuration of the five
UNL3300 rectifier bridges in the original system has not been changed, but the control and measurement parts of the rectifier
bridge have been upgraded. And the fan circuit and power control part of the rectifier bridge have been upgraded. Among them, the signal interface board (PsI) was
changed to the rectifier bridge signal interface board (CsI), the circuit breaker of the rectifier bridge panel was changed from CDP to CCP, and the rectifier bridge control
interface board (CIN) was changed to the rectifier bridge control board (CCI).
For the upgrade of the demagnetization cabinet, the switch control part was mainly upgraded. By adding a CIo board to the switch cabinet and installing a special
power distributor and relay to control the demagnetization switch, the original PsI board was removed. Secondly, in the transformation of the current detection part,
the Hall element in the Unitrol5000 system was replaced by the current relay of the Unitrol6800 system.
For the upgrade of the excitation current measurement part, the rectifier side Hall element of the rectifier bridge was replaced with an AC side CT. Relying on the linearity of the
CT, the current sharing coefficient of the excitation system was increased to 0.98, so that the role of the rectifier bridge can be fully exerted in the system. .
For the upgrade of the fan power supply circuit of the rectifier cabinet, each power cabinet can independently control the power supply of the fans in the
cabinet to avoid the problem that if the power circuit relay fails in the original system, all the fans will not work.
3.3Unitrol6800 functional logic configuration points
The Unitrol6800 system adds PT slow-blow judgment logic, and defines the actions of PT slow-blow as alarm and channel switching. The system PT
slow-blow logic pressure difference is 2% to ensure sufficient sensitivity. Since some external reasons will cause the sequential increase or decrease of magnetic
commands, a special increase or decrease magnetic contact adhesion judgment logic has been added to effectively lock out external causes. At the same
time, it can
avoid the jitter of the relay on the increase or decrease magnetic circuit and ensure the stability of the circuit. The excitation temperature detection is used to
alarm in the system, but it cannot control the system tripping. The tripping intermediate relays K291 and K292 use high-power (≥5w) relays to avoid
the problem of tripping of the excitation system
due to signal interference.
4 Problems discovered during the transformation and their solutions
After upgrading the excitation system from Unitrol5000 to Unitrol6800, since the partition between the regulator cabinets of the original excitation switch
cabinet was removed and the mounting backplate of the regulator was moved forward, the hot air from the excitation switch cabinet will enter the excitation regulator
cabinet, causing the cabinet to be damaged. The internal temperature rises, and sometimes the temperature can even reach 45°C. In order to avoid problems caused
by high temperatures, partitions were added to reduce the temperature inside the switch cabinet and control the
temperature to 30°C.
During the maintenance process, if the grounding carbon brush of the generator is removed, it is easy to cause the rotor grounding relay isoLR275 to
malfunction. Therefore, during maintenance, the power supply of the grounding relay will be disconnected and the large shaft in the magnetic cabinet will be short-circuited.
5 Conclusion
Through the transformation of the excitation system, our company not only meets the needs of increasing the generator capacity, but also
eliminates the safety hazards of ARCnet failure or flat cable damage in the excitation system of the unit. It can find the fault point during maintenance
and prevent the unit from non-stop. event. The new board used in the new excitation system has modular characteristics, which can make online maintenance more
convenient, and because the boards use trigger pulse generation communication and optical fiber redundant communication, the stability of
information transmission is ensured. Avoid communication failures and damage to pulse lines.
KW3400F Cutler-Hammer TYPE KW FRAME ONLY 3P 400A 660VAC MAX
330104-00-05-10-02-CN Bently Nevada 3300 XL 8 mm Proximity Probes
1794-TB3 Allen-Bradley terminal base unit
1756-TBCH Allen-Bradley ControlLogix Removable Terminal Block (RTB) component
1756-PA75/B Allen-Bradley ControlLogix Power Supply
1756-L61/A Allen-Bradley standard ControlLogix series controller
1756-L61/B Allen-Bradley standard ControlLogix series controller
1756-L72S Allen-Bradley Programmable Automation Controller
3VL9440-7DC30 Siemens release
1756-IF8 Allen-Bradley analog input module
PP845 3BSE042235R1 ABB Operator Panel
3BDH000364R0002 PM783FB0 ABB CPU Module
1C31234G01 Westinghouse Compact Contact Input Module
PW301 Yokogawa Power Module
DR-100-24 MEAN WELL Single Output Industrial DIN Rail Power Supply
1756-PA72C Allen-Bradley ControlLogix Standard Power Supply
1C31179G02 Westinghouse I/O modules
5X00070G04 Westinghouse INPUT MODULE
140CPS12400 Schneider POWER SUPPLY MODULE
YPK112A 3ASD573001A13 ABB PC COMMUNICATION BOARD
YPP110A 3ASD573001A1 ABB PC DRIVE BOARD
YPQ110A 3ASD573001A5 ABB MIXED I/O BOARD
MM-PM41400CPM+4000 Schneider power-supply module
IPM2-P0904HA Foxboro Power Supply Module
G122-824-002 MOOG SERVO AMPLIFIER
HC-KFS23K-S49 MITSUBISHI servo motor
AS-J890-102 Schneider Remote I/O Processor Module
AS-BADU-204 Schneider INPUT MODULE
1756-EWEB Allen-Bradley Ethernet I/P Enhanced Web Server module
GDB021BE GDB021BE01 HIEE300766R0001 ABB Gate control unit
FBM212 P0914XL FOXBORO Differential 14 Input Thermocouple/MV
0880001-01 GE man-machine interface
086339-001 004707001474 ABB PWA,SENSOR MICRO INTELL
216AB61 HESG324013R0100 HESG435572P1 ABB
PC-E984-685 Schneider PROGRAMMABLE CONTROLLER
216DB61 HESG324063R0100 HESG216882A ABB Control Unit
PCD1.M120 SAIA input module
97590-8 BD-PCI4PORT GE
1756-CNBR Allen-Bradley ControlLogix communication module
IC693CMM302 GE Enhanced Genius Communications Module
IC693PCM311 GE Programmable Coprocessor Module
IC693CHS391 GE expansion plate with ten slots
IC693BEM331 GE Series 90-30 PLC System manufactured
Reviews
There are no reviews yet.