Foxboro 0301066/025125-AS Brand New PLC Module
Introduction
The enhanced design utilizes split ranging of the Start-up Bypass valve and the MFWR valve such that they sequence as if there is only one full range valve. Advanced control techniques are utilized to enable the control system to control the transfer from Single Element to Three Element control during the times when reactor power is increasing, and from Three Element to Single Element control during times when reactor power is decreasing.
This allows the control system to be in Three Element control while still on the Start-up Bypass valve, improving the dynamic response of the control at a much lower power level than was attainable with the prior design. The system closes the Start-up Bypass valve when appropriate and automatically transfers control from the Start-up Bypass valve to the MFWR valve without any operator intervention. For power shutdown, the system automatically transfers control from the MFWR valve back onto the Start-up Bypass valve. Both of these transfers occur without operator intervention. The automated transfers alleviate the operator from the time consuming and manually intensive transfers required in the older methodology.
The Three Element controller automatically reverts to Single Element control upon the loss of all Steam Flow or all Feedwater Flow signals, allowing Steam Generator level to be maintained under automatic control while maintenance can be performed on the offending flow signals. If all Steam Generator Level signals are lost, the Three Element/Single Element control system will transfer to MANUAL, mitigating the degree of level perturbations. The following is a brief description other solutions provided for the nuclear industry outside of the feedwater control realm.
Foxboro Other Products
| MVI71-ADM | MVI69-GSC | MVI56-HART |
| PS69-DPS | MVI69E-MBTCP | MVI56-GSC |
| PS69-DPM | MVI69E-MBS | MVI56E-MNETR |
| PC56-2K-IDE | MVI69-DFNT | MVI56E-MNETCR |
| MVI94-MCM | MVI69-ADMNET | MVI56E-MNETC |
| MVI71-AFC | MVI69-ADM | MVI56E-MNET |
| MVI69-PDPS | MVI56-PDPS | MVI56E-MCMXT |
| MVI69-PDPMV1 | MVI56-PDPMV1 | MVI56E-MCMR |
| MVI69-MNET | MVI56-MNET | MVI56E-MCM |
| MVI69-MCM | MVI56-MCMR | MVI56E-GSC |
| MVI69L-MBS | MVI56-MCM | 2150-AGA |
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About Us
Our company isServo module Parts Limited, we are glad to introduce ourself as a reliable trade company for a few leading brands in the market, Allen-Bradley, Honeywell, ABB, Bently Nevada, Triconex, GE-Fanuc, Siemens and so on.
We have been supporting many local and overseas factory automation industries.
Specializing in various types of module,boards, cards, processor, from basic to anti-corrosion, sensors from economy to high precision type.
