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PIPING & INSTRUMENTATION DIAGRAMS (P&IDs) FORMATS AND ELECTRIC POWER DESIGN.

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Presentation on theme: "PIPING & INSTRUMENTATION DIAGRAMS (P&IDs) FORMATS AND ELECTRIC POWER DESIGN."— Presentation transcript:

1 PIPING & INSTRUMENTATION DIAGRAMS (P&IDs) FORMATS AND ELECTRIC POWER DESIGN

2 PIPE DATA ON P&IDs SIZES BASED ON VELOCITY AND/OR PRESSURE DROPS. MATERIALS OF CONSTRUCTION INSULATION AND TRACING, IF REQUIRED CAN BE LISTED IN A PIPE SCHEDULE AT THE BOTTOM OF THE SHEET. thvac.net/images/ AutoCad2.jpg NOYESNOYES INSULATED C.S.304 SS316 SS M. O. C. COMP. AIR STEAMRXTR PROD R.M. 2R.M. 1MEDIA LINE SIZE in LINE NUMBER

3 LOOP DATA ON P&ID’S MOST LOOPS WILL BE DESIGNATED BY: –A SINGLE BUBBLE –CONNECTED TO SENSOR –AND CONTROLLED INSTRUMENT OR INTERLOCK.

4 CONTROL ON P&IDs ALL PRIMARY CONTROL LOOPS SHOULD BE SHOWN ALL SUPERVISORY ALARMS SHOULD BE INDICATED ON THE DIAGRAM ALL INTERLOCKED ALARMS SHOULD BE INDICATED ON THE DIAGRAM PLCs SHOULD BE SHOWN CONNECTED TO CONTROL ELEMENTS

5 PRIMARY CONTROL AND ALARMS ON P&IDs PC PAL PALL PAH PAHH PS I I TO CONTROL ELEMENT TO LOW PRESSURE INTERLOCK CONNECTIONS TO HIGH PRESSURE INTERLOCK CONNECTIONS

6 TYPICAL PLC CONNECTIONS PS REACTOR PLC LS TS S FCV

7 PLC LOGIC DIAGRAMS mbols.PDF CREATED AS SEPARATE DOCUMENTS NEED TO BE LINKED TO THE ELECTRICAL AND INSTRUMENT DIAGRAMS USE LADDER LOGIC SYMBOLOGY

8 STANDARD DRAWINGS INCLUDE DETAILS FOR COMPONENTS IN THE CONTROL LOOP STANDARD DRAWINGS SHOULD BE ATTACHED TO THE P&ID SET STANDARD DRAWINGS SHOULD BE NOTED ON ALL P&ID’s.

9 TYPICAL STANDARD DRAWING

10 STANDARD DRAWING CONFIGURATION CONTROL BUBBLE SHOULD INCLUDE A HORIZONTAL LINE IF THE SIGNAL IS SHOWN IN THE CONTROL ROOM. INTERLOCKS SHOULD BE CONNECTED TO ALL DEVICES IN THE LOOP INCLUDING THE ALARMS. SEE TEXT FIGURE D-6 FOR COMMON SYMBOLS

11 ELECTRICAL SYSTEMS POWER, GROUNDING & CONTROL POWER DESIGN - DELIVERY OF POWER TO DRIVERS IN THE FACILITY

12 POWER DELIVERY TYPICAL SUPPLY IS AT 13.8 Kv CAN BE USED TO DRIVE LARGE MOTORS REQUIRES SPECIAL METHODS FOR START-UP AND SHUT DOWN OPERATIONS IN-PLANT DISTRIBUTION CAN BE AT 4160 V OR 440 V 4160 V CAN BE USED TO DRIVE LARGER MOTORS 460/480 V IS THE TYPICAL LEVEL FOR MOST LOW - MEDIUM HP UNITS LOWER LEVELS ARE USED FOR LIGHTING, SMALL MOTORS AND CONTROL SYSTEMS.

13 DISTRIBUTION FOR MOTOR DRIVERS AC MOTORS CONSTANT SPEED SQUIRREL CAGE OPERATING ON 60 Hz CURRENT, CAN RUN AT 3600/1800/1200/900/600/450 RPM, DEPENDING ON THE ARRANGEMENT OF THE WINDINGS WOUND-ROTOR INDUCTION VARIABLE FREQUENCY ALLOW DIFFERENT SPEEDS DC MOTORS USE RECTIFIES TO PRODUCE CONSTANT SPEED OPERATION THERE IS AN INHERENT LOSS IN EFFICIENCY FOR THESE UNITS. SYNCHRONOUS MOTORS –HAVE A CONSTANT SPEED OPERATION BASED ON THE POWER SUPPLY FREQUENCY

14 MOTOR CONTROL CENTERS CONTAIN THE STARTERS FOR THE VARIOUS TYPES OF MOTORS CONTAIN THE OVERLOADS AND CONTROL CONNECTIONS FOR THE MOTORS ens.com/cd/sivacon/html_76 /8pt_motorcontrolcenter_ein schub.htm

15 POWER DISTRIBUTION CAN BE OVERHEAD USING POLES OR CABLE TRAYS CAN BE UNDERGROUND USING DUCT BANKS LOCALLY IS THROUGH CONDUIT technology.com/contractor_imag es/al-babtain/4- distribution_pole.jpg roject=105&Update=022105

16 CONTROL SYSTEMS CONNECTED INTERLOCK SYSTEMS LOGIC DIAGRAMS INDICATE THE STRUCTURE ACTUAL PROGRAM MAY BE ON PLC. SEND SIGNALS TO STARTERS plc.com/cybro.htm

17 GROUNDING SYSTEMS GROUNDING SYSTEMS ARE SET UP INDEPENDENT OF THE ELECTRICAL POWER SYSTEM EVERYTHING THAT CAN CONDUCT IS CONNECTED TO THE GROUNDING SYSTEM inc.com/images/LIGHTNING%202.j pg


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