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Control System Diagram
1996-2010 Operation Technology, Inc. Workshop Notes: Control Circuit System
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Control System Elements
Switchgear Protection and Control Circuit
Circuit breaker trip and closing coils Circuit breaker closin s rin char in motors
Relays coils and timer
o or ar er, pee on ro , an ro ec on
Starter coil circuit
Control relays
Slide 21996-2010 Operation Technology, Inc. Workshop Notes: Control Circuit System
an e e er or con ro c rcu
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Control System Elements
Miscellaneous DC Loads
Relays Solenoids
Other Purpose Auxiliary devices and special control circuits
Regulator and regulating systems
Slide 31996-2010 Operation Technology, Inc. Workshop Notes: Control Circuit System
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CSD Modes
Edit ModeAdd/Delete Elements
ange onnec ons
Modify Engineering Data
Simulation ModeRun Simulations Simulation Triggered by Manual Action or
Clicking the Run Button p a e ource u y yc e
Generate Event View, Alert View, and Report
Slide 41996-2010 Operation Technology, Inc. Workshop Notes: Control Circuit System
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CSD Setup
CSD ElementsDevice Coil, Solenoid, General Load and Light
Contact Fixed and Form-C; Macro-Controlled Contact
Branch Wire and Impedance
Bus and Node
PD CB and Fuse
CSD Source
Elementary Diagram (ED) brought in from DC System
Slide 51996-2010 Operation Technology, Inc. Workshop Notes: Control Circuit System
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Control Cable Schedule
Control Cable ScheduleCable Used only in Control System Diagram
Can Have Multiple Wires for Different Wires in CSD
Assigned, Reserved, and Available Wire
Parameter Entered from Editor or Retrieved from Library
Parameter Change Affects All Wires
Wire Impedance Value
Editor Entered Data a e rary a a a a as e n a e ec on me
Control Cable Schedule Data Dynamically Retrieved from
Cable Schedule
from Library at Calculation Time
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Device Property
Device RatingBurden Rating and Inrush Rating
Burden Rating Can be Constant P, Z, or I
Inrush Rating Always Modeled as Constant Z
Inrush Duration length of Time Applying Inrush Rating
Vpickup & Vdropout Editor and Study Case Options
Device Duty Cycle
Model Device as a Time Varying Load , ,
Device Model Type
If Duty Cycle Is Used, a Device Draws Current When It is
Energized and Amp > 0 by Duty Cycle
Slide 81996-2010 Operation Technology, Inc. Workshop Notes: Control Circuit System
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Simulation Method
wo et o s ySequence of Operation Simulation
Sequence Simulation with Vd Calculation
Features SeqOp
Vd
Logical Simulation Y Y
Voltage Drop Calculation and Reporting N Y
CSD Source Volta e N Y
Vpickup & Vdropout Checking & Reporting N Y
Composite CSD Duty Cycle Updating N Y
Slide 111996-2010 Operation Technology, Inc. Workshop Notes: Control Circuit System
As Part of Battery Discharge Calculation N Y
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Duty Cycle Update
Composite CSD Duty Cycle UpdateUpdate to the Specified Duty Cycle Category
Initial Time Shift to Set to New Time Reference
CSD Source VoltageModeled as Constant Voltage Source for a Time Moment
not Saved When Closing Project
Time Offset for Adjusting Time Reference
Slide 141996-2010 Operation Technology, Inc. Workshop Notes: Control Circuit System
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