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PRESENTED BY: Santosh Tiwari
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Unit Logic.
Oil Elevation Logic.
Coal Elevation Logic
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Boiler purge logic
Master fuel trip logic
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o Any Scanner fan PR adq
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This is to save boiler tubes from running dry. Tconditions prevail, 30% of TMCR flow is maintin boiler tubes.
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This is to save boiler from extreme high pressmain steam in case of failure of safety valves
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This protection saves boiler tubes from damadue to high temperatures. Boiler tubes maternot withstand the very high temperature of 5
590 deg C for a long time. This high degree oftemperature may result in joint failures and tuleakages.
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This trip protects the tubes from overheatinpotent failure. High water wall tube temperaare an indication of over-firing, low water wor a combination of both.
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Boiler is directly tripped on turbine trip protthat opens the vacuum breaker like: Axial sand turb bearing vibrations very high.
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It can be done before light up and No MFT condare present.
All HONVs are kept closed. HFO control v/v is openedis closed.
HOTV is opened for 15 sec . When HFO pressure is 14then HOTV is closed.
Now for 60 sec, trapped pr is monitored for any drop HONVs/HORV leak test is successful, if pr drop is belo
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HORV is opened to drop the HFO pr to 10 kg andHORV is closed.
Now for 60 sec, trapped pr is monitored for any rpr. HOTV Leak test is successful, if pr rise is negli
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In AB elevation, only
HFO or LFO can betaken in service at atime.
In AB elevatioCombination oor LFO can be
in service at a
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For mill A
AB3/4 orFdr-B at 50% at BLI 30%
For mill B AB3/4 or
Fdr-A/C at 50% at BLI 30%
For mill C
AB3/4 orFdr-B/D at 50% at BLI 30% or
Fdr-B at 50% with AB
For mill D AB3/4 or
Fdr-C/E at 50% at BLI 30%
For mill A AB3/4 o
Fdr-B at 50% at BLI 3 For mill B AB3/4 o
Fdr-A/C at 50% at
Fdr-C at 50% at CD
For mill C AB3/4 o
Fdr-B/D at 50% at Fdr-B at 50% with A
For mill D AB3/4 o
Fdr-C/E at 50% at Fdr-E at 50% at EF
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Elevation-A voted no flame
Fdr-A Not in service
AA & AB 3/4 no flame (AB 2/4 no proven)
Elevation-B voted no flame
Fdr-B Not in service
AB & BC 3/4 no flame (AB 2/4 no proven)
Elevation-AA vote
Fdr-A Not in se
AA less than 2/4
Elevation-A voted
Fdr-A & B Not i
A less than 2/4 noproven)
Elevation-B voted
Fdr-B & C Not i
B less than 2/4 no
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AutoCAD, Promise, and the One-Step ALG provide tools for automated applica
engineering programming tool to the ECS-1200 control system.
Applicationengineers use the AutoCAD with the Promise software to define conalgorithmsin the formof CAD logic diagrams. The Promise software runs as an a
to AutoCAD and allows users to set up various attributes for the drawings and th
components. The information for each Promise project is storedinan associated
databasethat is accessible toutilities of Promise.
After the logic diagrams for a particular application have been completed, utilities
Promis e extract specified data from the database and produce a set of report te
The One-Step software processes these report files and contents ofthe AutoCAD
diagramsto produce two output files:anequation textfile and logic graphic files. O
the equation text file is completed, anHFC compiler produces the downloadable
application code.
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REMOTE 4 # ofPoints Bytes per Point Bytes tobroadcast # of broadcastsAcbrDDB(DI,1,129) 129 2 258 0.275641026DDB(DO,1,288) 288 2 576 0.615384615DDB(FL,1,8000) 8000 0.125 1000 1.068376068DDB(TI,1,1000) 1000 5 5000 5.341880342DDB(CO,1,650) 650 2 1300 1.388888889DDB(MS,1,6000) 6000 2 12000 12.82051282DDB(DF,1,6000) 6000 2 12000 12.82051282DDB(BL,1,901) 901 8 7208 7.700854701DDB(DG,1,103) 103 6 618 0.66025641TOTAL
You can see that it takes 47 broadcasts for this remo
through the list a single time.
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DDB(DI,1,2000)
DDB(DO,1,2000)
DDB(MS,1,100)DDB(FL,1,14000)
DDB(CO,1,100)
DDB(TI,1,100)
DDB(BL,1,100)
FILTER(FL,999,8,1,FL,999,0,0)FILTER(DDB,1,2000,5,DI,1,8000,0)
FILTER(DDB,1,2000,1,DI,1,8000,0)
FILTER(DDB,1,2000,3,DI,1,8000,0)
FILTER(DDB,1,1370,11,BL,1,00000010,0)
Lines that begin with FILTE
this Remote will pull in from
and store in memory.
Lines that begin with DDB d
Remote will broadcast out o
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The sensor works with a Transceiver (transm
which is looking into the measuring pipe by m
hollow antenna with a frequency of 24 Ghz a
of approx. 3mW.
The transmitter sends in CW (Continuous Wa
thus a homogeneous high frequency field in t
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