ATPDesigner – Design and Simulation of Power Networks

Transcrição

ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
EEUG Meeting 2005 - One Day EEUG Course
“Protection Modeling with ATP and ATPDesigner
September 14, 2005, Warsaw, Poland
ATPDesigner and ATP
Introduction and Overview
Home Page: http://people.freenet
.de/atpdesigner
atpdesigner
http://people.freenet.de/
E-Mail: DrMichaelIgel@
[email protected]
aol.com
Release: V1.2 – 12.09.2005
Table of Contents
ATPDesigner – Design and Simulation of Power Networks
1.
2.
3.
4.
5.
6.
7.
8.
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Installation Procedure
Vision, Concept and Realization
File Management, Program Settings
Design of Network Elements
First Steps Designing Power Networks
Network Simulation and Diagram Viewer
Signal Analysis
Testing Protection Relays
22
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
1 Installation Procedure
33
Installation Procedure
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
1. Extract the Zip – File ATPDesignerL.zip
2. Start Setup.exe
3. Follow Instructions
44
Installation Procedure
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Readme Text
Some Information about ATPDesigner and ATP
Homepage: http://people.freenet.de/atpdesigner
License Agreement
Important to read and understand
Accept License Agreement
55
Hochschule für
Technik und Wirtschaft
des Saarlandes
Installation Procedure
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Target Directory Selection
Default Root Folder: C:\ATPDesigner
– Sub - Folders
• ATPSystem
• Data
• Doc
• Exe
ATP Runtime System
.NET – Files, .PL4 – Files, Temporary Files, etc.
Some Helpful PDF-Files about ATPDesigner
ATPDesignerL.exe, ATPDesigner.hlp
ATPSystem
!
ATP Runtime System Must Be Copied from the User into this Folder !!!
Folder Must Contain the Files Listed Below
– TPBIGG.exe
– STARTUP
– PlotXY.exe
Default Folders can be Changed, but Program Settings Must be Adapted.
66
Hochschule für
Technik und Wirtschaft
des Saarlandes
Installation Procedure
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Dialog Program Settings
Default Folders of Program Settings are configured according the Folders of the
Installation Procedure
Both Sets of Folders Must be Adapted by Hand, if the User had Changed One.
Name ot ATP Executable File (.EXE)
Default DATA Folder: Data
Folder of the ATP Runtime System: ATPSystem
Folder of ATPDesigner.exe: Exe
Windows OS Folder
77
Additonal Features
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
The Installation Procedure creates a new Menu Item
ATPDesigner Executable
ATPDesigner Help File
Uninstall Procedure
Getting Started
Update Documentation
Shortcuts on the Desktop
88
Comments About Installation
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Don‘t forget to change Program Settings, if installation folders had been
modified
ATPDesigner starts ATP using the command line
ATP System \ ATP Exec. File ...
C:\ATPDesigner\ATPSystem\TPBIGG.exe ...
Environment Variable GNUDIR
ATPDesigner re-assignes the environment variable GNUDIR during
the startup phase to the folder ATPSystem
It‘s equal to
– Set GNUDIR = C:\ATPDesigner\ATPSystem\
This re-assignment is only valid as long as ATPDesigner is running
!
It is not necessary to modify the environment variable GNUDIR by
Hand.
99
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
2 Vision – Concept –
Solutions
About ATP
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATP
One of the Best Tools Worldwide to Simulate Electrical Power Networks
One of the Best Tools Worldwide to Study Transient Phenomena
High Number of Numerical Models of Power Network Elements Available
More than 50 Years Experience in Simulation of Electrical Power Networks
Used and Supported from the ATP Community Worldwide
But
Use of the Numerical Models are often Difficult for Beginners
Long Experience Required to Use the Full Capability of ATP
Input Data written in Text Files
Easy to Make Faults
Difficult to Detect Faults
Simulation Results written in Text Files
Difficult to “Read” Analyze Process
Additional Tools Required
Graphical User Interface (GUI), Diagram Viewer, Signal Analyzing Tools,
Format Converting Tools, Printing Tools, Interface Tools, …
11 11
What Does the User Need ?
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATP Users need
an Integrated „Development“ Environment to Simulate Power Networks
Development =
– Design of the Electrical Power Network
– Creating Diagrams of Voltages and Currents
– Analyzing Voltages and Currents
Tools using a Common Style Guide
Tools which are Intuitive to Use
Tools with a Common Graphical User Interface
Tools which are Easy to Operate
The Current Situation
Tools are based on Different Style Guides
Tools are using Different Operation Concepts
Tools are not Integrated as Development Environment
The Consequences
Beginners
Sporadic Users
Experts
ATP and the Tools are Difficult to Use
Re-Understanding needs a lot of Time
Tools are Acceptable, But to Improve
12 12
Vision and Concept
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Vision
Tool which Helps Beginners to Start with ATP
Tool which Supports also Sporadic Users and Experts
Tool with a Graphical State of the Art User Interface
Tool supporting all Important “Development” Aspects
Design, Simulation, Diagrams, Signal Analysis, Format Converting, …
Tool which Covers ATP (= ATP runs Invisible in the Background)
Tool which „Translates“ ATP related settings to Engineering related Settings
Tool which presents a User Friendly Interface for Settings
Tool to Use ATP‘s Capabilities Testing Protection Relays
Concept
Integrated Simulation Environment
Graphical User Interface according Microsoft Style Guide (e.g. Word, Excel, etc.)
Developed with Microsoft Visual Studio
Graphical User Interface to Design Power Networks (e.g. Visio, etc.)
Easy to Use Operation Interface (e.g. Menus, Toolbars, Mouse Menus, etc.)
Standardized Settings Dialogs designed for Electrical Engineers
Integrated Diagram Viewer, Format Converter, Signal Analysis, etc.
Support of Power Amplifiers via Communication Interfaces
13 13
Hochschule für
Technik und Wirtschaft
des Saarlandes
One Tool - Different Views
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Main Menu
Toolbar
Power Network
Multiple Views
Integrated Diagram Viewer
Toolbar and Status Bar
14 14
One Tool - Multiple Views
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
15 15
Hochschule für
Technik und Wirtschaft
des Saarlandes
Default Power Network
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Click to Create a New Power Network
Prof. Dr.- Ing. Michael Igel
Default Power Network
Busbar
Circuit Breaker
Network Infeed
Busbar
Single-Circuit Line
Circuit Breaker & Measuring Location
16 16
Hochschule für
Technik und Wirtschaft
des Saarlandes
Menus and Toolbars
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Main Toolbar
Create a New Default .NET – File
Open an Existing File
File Browser
Write .ATP – File
(see also Toolbars and Status Bar in Help File)
ATP Data
Write .ATP – File and Start ATP
Test Procedure
Short Circuit Analysis
Load Flow Analysis
Default: Plotxy
Global Configuration Settings
Using CMC Test System
ATP runs in the background
Open external diagram viewer
Simulation related settings
Single-Test Step
Prof. Dr.- Ing. Michael Igel
Network Configuration
CMC Configuration
Line Configuration
Graphic Colors
Presenting ATP‘s steady state
results
Format Converting
Support of COMTRADE
17 17
Hochschule für
Technik und Wirtschaft
des Saarlandes
Menus and Toolbars
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Toolbar for Network Design Mode
Add a new
Busbar
Network Infeed
Load Impedance
Grounding of Load Impedance
RLC Series Impedance
2-Winding Transformer
BCTRAN Transformer
Autotransformer
3-Phase Sync. Generator
Grounding System
Text Frame
1-Phase Source
3-Phase Symmetrical Source
Empirical Function (Type 1)
Connection
Measuring Probe
Prof. Dr.- Ing. Michael Igel
(see also Right Mouse Button Menu)
Add a new
Splitter
Line
Circuit Breaker
Delete
Deselect
Copy & Paste
Rotate 180°
Rotate 90° Right
Rotate 90° Left
Move to Foreground
Move to Background
Lock / Unlock Shape of the
Network Element
Enable / Disable
18 18
Hochschule für
Technik und Wirtschaft
des Saarlandes
Menus and Toolbars
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Toolbar for Network Elements and Diagrams
Open Settings Dialogs
Voltage and Current Transformer
Saturation (Magnet. Characteristic)
Fault Types
Arc Resistance
Fault Resistance
Diagram related Buttons
Diagram Settings
Min, Max, Colors, Pen Thickness, ...
Zoom In and Out
Refresh Diagram
Signal Analysis Settings
Calculating R, X, Irest, Idiff, ...
Diagram related Buttons
Selecting Voltages and Currents
Scaling Factors
Graphics Cursor
Signal Analysis Results
Fundamental Frequency
Frequency Spectrum
Open Diagram View
!
Opens the .PL4 – based diagram,
which corresponds to the power
network displayed in the active
means topmost view
Vector Diagram
19 19
Windows like Menus
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Standard Hot Keys
MRU File List
New, Open, Save, Save As, Print, ...
Ctrl + N, Ctrl + O, Ctrl + S, ...
20 20
Hochschule für
Technik und Wirtschaft
des Saarlandes
Right Mouse Button Menu
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Menu for Power Network Design
Network elements can be added
Most used settings dialogs can be opened
Menu for Network Element related Settings
Network element must be selected
drawn in Light Grey
Network element related features at the end
Menu for Diagrams
21 21
Operating Concept
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Settings Dialog
Double – Click on the Graphical Representation of a Network Element
Selected Network Element drawn in Light Grey
Settings are defined from the Engineering Point of View
Standardized Design of All Dialogs
Selected Network Element via Double Click
22 22
Hochschule für
Technik und Wirtschaft
des Saarlandes
Settings Dialog
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Close Dialog
Saving Changed Settings
Internal Name
Close Dialog
Ignoring Changed Settings
User Defined Name
Loading Default Settings
Options
Open Corresponding
Chapter of the Help File
Settings
Disabled Settings
Additional Data
23 23
Click on the Help Button
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Detailed Explanation of All Settings
Snap Shot of the Settings Dialog
Links to Related Topics
24 24
Hochschule für
Technik und Wirtschaft
des Saarlandes
Information in the Help File
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Overview
Getting Started
25 25
Hochschule für
Technik und Wirtschaft
des Saarlandes
Information in the Help File
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Network Elements
Network Infeed
Busbar
Lines
Fault Type
Generator
Current and Voltage Transformer
Splitter
3-Phase Source
...
Transformer
2-Winding
BCTRAN
Examples: Testing Vector Group
Lines
Single- and Double-Circuit Lines
Line Models
Examples: Series Compensated Line
26 26
Hochschule für
Technik und Wirtschaft
des Saarlandes
Information in the Help File
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Testing Protection Devices
Single-Step Test
Measuring Operating Times
Test Procedure for Automated Testing
Interface to CMC Test System
Supporting CMC156, CMC256, CMA156
Configuration of CMC Amplifiers
Communication via CM Engine DLL
General Information
Menus
Toolbars
Hot Keys
Errors
Warnings
27 27
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
3 File Management,
Program Settings
28 28
Open Files ...
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Files can be opened as usual under Windows OS
Open ..
Most Recently Used (MRU) List
File Browser (CTRL + X)
29 29
Hochschule für
Technik und Wirtschaft
des Saarlandes
Easy to Use File Management
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Preferred Folder
Explorer like File Tree
Double Click to Open
Basic File Operations
File List of Preferred Folder
Resizable Dialog
30 30
Files and File Extensions
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
.NET – File
Contains All Information about the Network Elements
Network Drawing
Required to Draw the Network Graphics
Electrical and Mechanical Settings
Required to Write ATP Data Case File
The .NET – File Contains All Information about the Electrical Power Network.
It is Absolutely Sufficient to Save Only the .NET – File.
Secured by Checksums Should be Never Manipulated by Hand
.NET - File = Container of the Electrical Power Network
31 31
Files and File Extensions
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
.INI – File
Contains Only Program Related Settings
Settings Independent from .NET – File Settings
Stored in the EXE - Folder
Automatically Created from ATPDesigner
See Help File Content of the .INI – File
[ATPDesigner - Design and Simulation of Power Networks]
VersionIniFile=Version INI File 1.1 - 05.03.2005
VersionATPDesigner=Version 1.00.69 - 01.02.2005
ExeFolder=C:\Mscpp\ATPDesigner
DataFolder=C:\ATPDesigner\DATA
CmEngineDllFolder=C:\
AtpFolder=C:\ATPDesigner\ATPSYSTEM
AtpBrowserFolder=C:\ATP
PL4FileFolder=C:\ATPDesigner\DATA
AtpExeFilename=TPBIGG.EXE
...
32 32
Files and File Extensions
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
.ATP – File
Contains the ATP based Models of the Electrical
Power Network
Created by ATPDesigner as Output File
 Can be Read from ATPDesigner to be Presented in a
Text Editor
Main Menu View
.PL4 – File
Contains the Sampling Data of Voltages and Currents
Calculated by ATP
Created by ATP as Output File
 Can be Read from ATPDesigner to Create a Diagram
.LST – File
Contains Additional Information about the Simulation
Process e.g. Errors
Created by ATP as Output File
 Can be Read from ATPDesigner to be Presented in a
Text Editor
33 33
Hochschule für
Technik und Wirtschaft
des Saarlandes
Files and File Extensions
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
.NET - Files
COMTRADE
.CFG - Files,
.DAT - Files
Prof. Dr.- Ing. Michael Igel
.INI - File
.PL4 - Files
ATPDesigner
.LST - File
.ATP - File
ATP
Alternative Transients
Program
.LST - File
.PL4 - File
PlotXY
EEUG e.V.
34 34
Hochschule für
Technik und Wirtschaft
des Saarlandes
Program Settings
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Click on the Folder and Select a New Folder
Version of the .INI - File
Name ot ATP Executable File (.EXE)
Load last .NET – File During Startup
Default DATA Folder
Folder of the ATP Runtime System
Folder of Omicron CM Engine DLL
Folder of ATPDesigner.exe
Windows OS Folder
35 35
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
4 Design of Network
Elements
36 36
Object Orientated Design
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Network Element = Object
Object Orientated Design of Software and Data
Information about the Graphical Representation
Required for Panting the Network Graphics
- Colors and Size
- Position inside the View (x/y – Coordinate)
- Drawing Orientation
- Connection to other Objects
- ...
Information about the Electrical and Mechanical Settings
Required for Writing the ATP Data Case File
- Un , In
- P, Q, S
- Line Length L
- Impedance Z, Resistance R
- Inductance L, Capacitance C, …
- Vector Group, Numerical Index
- Helpful Calculators
- ...
Transformer
37 37
Settings of Network Elements
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Settings are specified from Electrical Engineering Point of View
The Vision
ATP can be used Without ATP Expert Knowledge
Neutral Point CB
Nominal Voltages
Helpful Calculator
Vector Group
Neutral Point
solid grounded
isloated
compensated
Neutral Point Impedance
38 38
Settings of Network Elements
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Example: Neutral Point of 2-Winding Transformer
Neutral Point : solid grounded
Neutral Point : isolated
Neutral Point : compensated (Petersen Coil grounded)
Neutral Point : compensated with CB in Parallel
The Concept : Easy to Use Models
ATPDesigner creates all ATP related Elements
ATPDesigner creates all ATP related Node Names
ATPDesigner makes ATP specific Requirements Invisible
ATPDesigner designed from the Engineering Point of View
39 39
Hochschule für
Technik und Wirtschaft
des Saarlandes
Design of Objects
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Detailled Design and Graphical Representation of a Transformer
1..N Snap Points to Connect Other Network Elements
Snap Point = Node of the Electrical Power Network
ONE Snap Point Can Only Connect ONE Other Snap Point (ONE - to - ONE)
In ADDITION: Internal Nodes of the Network Element
User Specific Name
Trafosymbollänge X
Mittelpunktdistanz M
Überdeckung y
TRAFOIMPHOEHE
Trafodurchmesser D
Trafoanschluss
Snap Point
Snap Point
No Snap Point, but
Internal Node
Never to Connect
TRAFOIMPBREITE
Additional Information
40 40
Hochschule für
Technik und Wirtschaft
des Saarlandes
Snap Points and Nodes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Winding A:
Snap Point to Connect
Prof. Dr.- Ing. Michael Igel
Neutral-Point
Node in the Power Network
but no Snap Point
Snap Point
A Snap Point can be used to connect two network elements
A snap point is always a node.
The state of a snap point can be Connected, Not Connected or Internal.
An Internal Snap Point can be not used to connect an other network element,
BUT ATPDesigner will always create a node in the power network.
Node
(see also Node Names in the Electrical Network in the Help File)
Network elements will be connected by Common Nodes.
ATPDesigner assigns a Node Name to any node of the power network.
Specification of a Node Name: (RST)xxxxx, xxxxx = 00001 ... 99999
ATPDesigner re-numbers the node names after each operation
Node names can be changed but must not changed after each operation
F3 : Node names visible / invisible
41 41
Hochschule für
Technik und Wirtschaft
des Saarlandes
Snap Points and Nodes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATPDesigner checks Node Names before Writing the .ATP - File
Are Nodes NOT Connected ?
Are Node Names according the
specification ?
If not, Error Message before
Starting ATP Simulation
Connected Node
NOT Connected Busbar Node
NOT Connected Nodes
Isolated Network Element
42 42
Hochschule für
Technik und Wirtschaft
des Saarlandes
Information of Colors
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Colors Can Be Set from the User
3-Phase Network Element
Disabled Network Element
NOT Taken into Account
during the Simulation
1-Phase Network Element
Circuit Breaker OPEN - CLOSE
43 43
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
5 First Steps Designing
Power Networks
44 44
Basic Operations
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Operations are Only Enabled, if a Network Element had been First Selected.
Selecting a Network Element = Left Mouse Button Click
Selected Network Element drawn in Light Grey
Selected Network Elements can be
Moved, Deleted, Copied, Enabled/Disabled, Locked/Unlocked, etc.
Isolated and Selected Network Elements can be Rotated In Addition
Disabled Network Elements will be Ignored Creating Electrical Network written in
the .ATP - File
Selected Network
Element
Isolated Network
Element
Disabled Network
Element
45 45
Hochschule für
Technik und Wirtschaft
des Saarlandes
Basic Operations
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Locked or Unlocked Shape of a Network Element
ATPDesigner Supports Network Elements
with a Fixed Shape and
with a Flexible Shape.
Lock / Unlock Status will be indicated for Selected Network Elements
Network Element with
Locked Shape
Network Element with
Unlocked Shape
Moving Locked Lines
Shape of the Line will be Fixed
Moving Unlocked Lines
Shape of the Line can be changed using a Rubber Band
46 46
Basic Operations
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Selecting Several Network Elements
Hold Down SHIFT & Left Mouse Button, Click on Network Elements
Selected Network Elements drawn in Light Grey
Moving Selected Network Elements
Move Mouse Cursor „Over“ Selected Network Elements „Hand“ Appears
Press Left Mouse Button and Move Selected Network Elements
Release Left Mouse Button at the New Position
47 47
Hochschule für
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des Saarlandes
Add Transformer
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATPDesigner identifies NOT
Connected Snap Points
1.
2.
3.
4.
5.
6.
Click on Toolbar Button or Select in Right Mouse Button Menu
Select the Drawing Direction Right
Move Mouse Cursor to a NOT Connected Node
Release Mouse Button
ATPDesigner Creates New Network Element
ATPDesigner Opens Automatically the Settings Dialog
48 48
Open Settings Dialog
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
49 49
Power Network Design
ATPDesigner – Design and Simulation of Power Networks
1.
2.
3.
4.
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Select the Network Elements to Move (Light Grey)
Move Mouse Cursor to the Node
Hold Left Mouse Button Down
Move Selected Network Elements to
a NOT Connected Node
50 50
Power Network Design
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Checking Network Topology
ATPDesigner checks the New Topology of the Power Network, before finalising
Are All Required Snap Points NOT Connected ?
If YES, Finalize the Modified Network Topology
If NO,
Error Message will be Displayed
Redo the Modification of the Network Topology
51 51
Add Load Impedance
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
1.
2.
3.
4.
5.
6.
Click on the Toolbar Button
Select the Drawing Direction Right
Move Mouse Cursor to a NOT Connected Node
Release Mouse Button
ATPDesigner Creates New Network Element
ATPDesigner Opens Automatically the
Settings Dialog
7. Enable Solid Grounded
52 52
CB with Measuring Location
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
ATPDesigner supports Circuit Breakers with Measuring Location
Measuring Location to the Right or Left of the CB
Voltage Transformer (VT) and Current Transformer (CT) Model
Evaluation Release: Transformation Ratio
Available in Full Release
Capacitive Voltage Transformer (CVT)
CT with Saturation (Magnetization Characteristic)
53 53
CB with Measuring Location
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Measuring Locations Assigned to Circuit Breaker Cb1..5
5 Measuring Locations available
with VT and CT Models
Cb1..5 can be only Deleted, if
Assigned Measuring Location had
been First Deactivated
Activate / Deactivate Assigned
Measuring Locations
First Select Cb1..5 (drawn in
Light Grey)
Open Settings Dialog via Right
Mouse Button Menu
54 54
CB with Measuring Location
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Cb1..5 and Testing Protection Relays
Testing Distance Protection or Overcurrent Protection
Tests in Radial Networks
– Use Cb1 with Assigned Measuring Location 1
– Monitoring at ONE Monitoring Point
Tests in Meshed Networks
– Use Cb1 and Cb2 with Assigned Measuring Location 1 and 2
– Monitoring at TWO Monitoring Points
Testing Differential Protection
2-Winding Transformer Protection or 2-Terminal Line Differential Protection
– Use Cb1 and Cb2 with Assigned Measuring Location 1 and 2
– Monitoring at TWO Monitoring Points
55 55
CB with Measuring Location
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
56 56
CB1..5 and CT Saturation
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Saturation of Current Transformers
One of the Most Critical Problems Regarding Protection Schemes
It is Necessary to
Test the Behaviour of Protection Relays in Case of CT Saturation
Determine the Influence of the Tripping Times
Determine the Overreaching or Underreaching
ATP
But
Numerical Models for Non-Linear Inductances Available (e.g. Type 98)
CT Model isn‘t Yet Available, Must be First Specified
ATPDesigner
Current Transformer Only Available for CB 1..5
Numerical Model of a TPX Current Transformer can be Enabled
Options: Hysterisis and Remanence are both Available
See more Details in the Help File CT Saturation Characteristic
57 57
Hochschule für
Technik und Wirtschaft
des Saarlandes
CB1..5 and CT Saturation
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Numerical Model of the Current
Transformer Enabled for CircuitBreaker Cb 1
Example
Transformation Ratio = 1000 / 1 A
Sn = 5 VA
Rb = 2 Ohm
N = 10
Total Error Fg = 1%
58 58
Hochschule für
Technik und Wirtschaft
des Saarlandes
CB1..5 and CT Saturation
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATP based Model
Transformation Ration
Ideal Transformer
Magnetization Characteristic
Type 98 L (i)
Internal Burden and External Burden
Burden Impedance
Create a Diagram using OUTP01/2/3
Currents at the Secondary Circuit of the CT
CT Saturation
59 59
CB1..5 and CT Saturation
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
The Internal Currents of the Current Transformer
OUTP01
IAS_M1
RICTM1
Current to be Injected into the Protection Relay
Current at Secondary Circuit of the CT WITHOUT Saturation
Magnetization Current of the CT
60 60
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
6 Network Simulation and
Diagram Viewer
61 61
ATP Data: Simulation Data
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Before Starting the Simulation it is
necessary to specify some settings,
which are related to the simulation
process.
Time
Overall Length of the Calculated
Data in Cycles
Prefault
Time before a Line Fault occurs
dt
Sampling Rate of the Data stored
in the .PL4 – File
Out
Repetition of the Test Step, related
to CMC Test System
Step
Number of Calculation Steps
between two Samples stored in the
.PL4 - File
62 62
ATP Data: Simulation Data
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Advantage of dt and Step
It is often a must to use a high
internal sampling frequency caused
by complex and high-sophisticated
numerical models e.g. LINE
CONSTANTS.
On the other hand it is often
sufficient to write the sampling
values of voltages and currents in
the .PL4 – file using a low sampling
frequency.
Both requirements can be set
independent from each other with the
both settings dt Step.
Example: Testing Protection Relays
The typical sampling frequency of protection relays is about 1000Hz. If a test
engineer uses e.g. an Omicron CMC Test System, it is sufficient to use an output
sampling frequency of about 5000Hz = 0.2ms in the .PL4 – file. Therefore the settings
dt should be set to dt = 0.2ms. The internal ATP related sampling frequency can now
be set dependend on the requirements of the used numerical models.
63 63
First Calculating Voltages, etc.
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
ATPDesigner starts ATP as a Background Process
Click on the Toolbar Botton or
Use the Right Mouse Button Menu or
Use Hotkey CTRL + R
Open Corresponding .PL4 – File
Select Node Names
Move it to the Right List
Node IAP_M1
Current Phase A Primary
Measuring Location 1
Node IBP_M1
Current Phase B Primary
Measuring Location 1
Node ICP_M1
Current Phase C Primary
Measuring Location 1
64 64
TACS Interface for Diagrams
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
ATPDesigner „connects“ Internal Nodes to TACS Nodes
Nodes will be Re-Numbered if the Network Topology had
been Changed
BUT: TACS Nodes are Fixed
TACS Output Nodes for
CB 1..5 with Measuring Location
Probes
Advantage
Signal List for Diagrams are Fixed
if Network Topology had been
Changed
Easy to Refresh Diagrams after Modifications
65 65
Hochschule für
Technik und Wirtschaft
des Saarlandes
Creating a Diagram
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATPDesigner creates a New Diagram in a New View
Node Names
Related to Graphics Cursor
Diagram related Toolbar
66 66
Hochschule für
Technik und Wirtschaft
des Saarlandes
Enable Fault Type
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATPDesigner supports Lines 1..3 with Integrated Fault Location
Open the Dialog Fault Types
Select Fault Type ABCG
Default: Fault at the Beginning of the
Line = 0%
Fault can be MOVED Holding Down
Left Mouse Button
Move the Fault Location to 50%
Recalculate Voltages and Currents
Open Corresponding .PL4 – File
Refresh Diagram
67 67
Setting Fault Location
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
An Alternative Method to Set the Fault Location
Faults (Short-Circuits) can be Enabled for Lines 1..3
Therefore:
Fault Location can be Set in the Line Settings Dialog
68 68
Hochschule für
Technik und Wirtschaft
des Saarlandes
Open Corresponding Diagram
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATPDesigner presents the
Modified Diagram
2 Graphics Cursor
Enable Graphics
Cursor for Signal
Analyzing
Purposes
1 Cycle
Sampled Values
Grey Cursor
Sampled Values Red Cursor
Time [s]
69 69
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
7 Signal Analysis
70 70
Hochschule für
Technik und Wirtschaft
des Saarlandes
Signal Analysis Settings
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Open Dialog Diagram Settings
DFT Window = 1 Cycle
Time distance between the Graphic
Cursor
DFT f = 50 Hz
Filtering Frequency of DFT
Should be Fundamental Frequency of
the Power Network
Can be set Independent of the Power
Network Frequency
DFT Window
DFT Window can be moved using
Cursor Left & Cursor Right
Size of the DFT Window keeps
constant
Graphical Cursor can be set
independent with Mouse Left &
Mouse Right
71 71
Hochschule für
Technik und Wirtschaft
des Saarlandes
DFT Algorithm
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Discrete Fourier Transformation
One of the Most Important Analyzing Methods for Electrical Engineers
Used for Harmonic Analysis
100
100
Continuous Signal
Measured Voltages and Currents
Measured in Real Power Networks
50
f
n
0
50
100 100
0
0.002
0.004
0.006
0.008
0
0.01
t
0.012
0.014
0.016
0.018
0.02
0.019
n
110 100
Sampled Signal
Voltages and Currents calculated
using ATP
Sampled values stored in .PL4 - File
Sampling Frequency e.g. 1 kHz
50
f
n
0
50
110
100
0
0
0.002
0.004
0.006
0.008
0.01
t
n
0.012
0.014
0.016
0.018
0.02
0.019
72 72
Hochschule für
Technik und Wirtschaft
des Saarlandes
DFT Algorithm
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Calculation of a Complex Vector a + j b
n

f
(nT
a
)
cos
2
π
k
∑


N


n=0
N-1
Real Part
2
ak =
N
N-1
Imaginary Part
2
bk =
N
n

f
(nT
)
sin
2
π
k
a
∑

N 

n=0
fa : Sampling Frequency in Hz
Ta = 1 / fa : Size of the DFT Window in Seconds
N : Number of Samples in the DFT Window
k : DFT Filtering Frequency
k = 0 : DC Component
k = 1 : Fundamental Frequency e.g. 50 Hz
k = 1 : 1. Harmonic e.g. 100 Hz
...
dt : Output Sampling Rate in .PL4 – File
Internal (ATP) Sampling Frequency
fint = Step / dt
73 73
Hochschule für
Technik und Wirtschaft
des Saarlandes
DFT Example
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
f(tk) = 100 sin(2π50Hz tk) + 10 sin(2π100Hz tk) + 20 sin(2π350Hz tk)
DFT f = 50 Hz
1. Harmonic = 100 Hz
6. Harmonic = 350 Hz
74 74
Hochschule für
Technik und Wirtschaft
des Saarlandes
Fundamental Frequency
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATPDesigner supports Signal Analysis using DFT Algorithm
1. Open a Diagram e.g. Reading a .PL4 - File
2. Enable Graphics Cursor
3. Open Dialog of Signal Analysis Results
Fundamental
Frequency
Frequency
Spectrum
Frequency Spectrum
Bar Diagram
Node Names
R.M.S  Peak
Amount
Phase
Phase Difference
75 75
Hochschule für
Technik und Wirtschaft
des Saarlandes
Frequency Spectrum
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
1. Select One of the Nodes in the List
2. Click on the Tab Harmonics
Frequency
Amount
Frequency
Spectrum of
Selected Signal
Phase
Phase Difference
Related to 50 Hz
Copy List to
Clipboard
76 76
Hochschule für
Technik und Wirtschaft
des Saarlandes
Bar Diagram
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Click on the Tab Spectrum
Top Most Window
Copy to
Clipboard
Select Maximum
Frequency to Show
Unit to Select
Resizable Dialog
77 77
Hochschule für
Technik und Wirtschaft
des Saarlandes
Vector Diagram
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Open the Vector Diagram
Copy to Clipboard
Scaling Factor
Resizable Dialog
78 78
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
8 Testing Protection
Relays
79 79
Testing Protection Relays
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Vision
Protection Relays shall be tested as Realistic as Possible
Test Data according the Physical Conditions in Power Networks
Transient Phenomena shall be taken into account
Test Procedures shall be Automated to Increase the Number of Test Steps
Requirements
ATP is able to Simulate the Behaviour of Electrical Power Networks
ATP Output Data : Sampled Data of Voltages and Currents
Test System required to „Translate“ Sampled Data to Volts and Amps
D/A – Converter ≥ 16 Bit
Frequency Range 0 .. 5000 Hz
Voltage Output up to 150V
(Vnom = 80..130V)
Current Output up to 50 A
(Inom = 1A or 5A, Imax ≤ 100 Inom)
Monitoring Binary Signals
(fa ≤ 0,5ms)
Communication Interface between PC and Test System to Automate Test
Procedures
80 80
ATPDesigner and CMEngine
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
ATPDesigner supports CMC Test Systems of Omicron
Using the Communication Interface CM Engine for Control and Automation
Voltages and Currents Transfered to CMC Test System as Sampled Data
CMC Test System „Translates“ Sampled Data to Volts and Amps
CMC Test System Monitors Binary Signal with 100µ
µs Resolution
CMC Test System = Recording System for Binary Signals
Procedure
Design of the Power Network with ATPDesigner
Calculating Voltages and Currents with ATP as Primary Signals
ATPDesigner Transforms Voltages and Currents to Secondary Signals
Circuit Breaker Cb1..5 supporting Numerical CT and VT Models
Circuit Breaker Cb1..2 designed for Data Interface to CMC Test System
Test Methods in ATPDesigner
Single-Test Step
Test Procedure
81 81
Hochschule für
Technik und Wirtschaft
des Saarlandes
CM Engine Support
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
ATPDesigner communicates with CMC
Test Systems via Parallel Port Interface
ATPDesigner converts Sampled Data of
.PL4 – File Internally to CMC Data Format
ATPDesigner transfers Sampled Data to
CMC Test System
ATPDesigner reads out Monitoring Data
(Binary Inputs) from CMC Test System
after Finalizing Test Step
Monitoring Data = Tripping Times
Test Procedure
In Addition
ATPDesigner writes Test Report
82 82
Hochschule für
Technik und Wirtschaft
des Saarlandes
Output Device: CMC
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Easy to Use: CMC Test System
Select Output Device = CMC Test System
Measuring Location 1 will be Automatically
Assigned to the CMC Test System
Primary Voltages VAG, VBG, VCG
Primary Currents IA, IB, IC
Substation CT and VT
Secondary Voltages OUTP04/05/06
Secondary Currents OUTP01/02/03
CMC Test System via CM
Engine Interface
Protection Relay
83 83
TACS Interface
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
See Node Help about Specification of Node Names
Secondary Circuit of Substation Transformer
Measuring Location 1 (Cb1) VAG
OUTP04
Measuring Location 1 (Cb1) VBG
OUTP05
Measuring Location 1 (Cb1) VCG
OUTP06
Measuring Location 1 (Cb1) IA
OUTP01
Measuring Location 1 (Cb1) IB
OUTP02
Measuring Location 1 (Cb1) IC
OUTP03
Start Single Test Step
Define Test Procedure
ATPDesigner shows Operating Times
ATPDesigner writes Test Report
84 84
Hochschule für
Technik und Wirtschaft
des Saarlandes
Operating Times
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Single-Step Test
Presenting the Last Measured Operating Times
10 Binary Inputs of CMC
Test System
LED Indication
Measured Operating Times
85 85
Operating Times
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
.TRP – File: Operating Times in a Diagram
86 86
Hochschule für
Technik und Wirtschaft
des Saarlandes
Test Procedure
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
2 Test Levels
Prof. Dr.- Ing. Michael Igel
Monitoring Binary
Inputs
Level 1 Settings
Test Level 1 = Master Level
Test Level 2 = Slave Level, Operated for all Test Level 1 Steps
87 87
Test Procedure
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Level 1 Setting
Level 2 Setting
88 88
Test Report
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
Example:
Test Procedure for Distance Protection P430
Test Report contains the Results which are also
presented in the Operating Times Dialog.
Level 1
Fault Location 60 .. 90 % of the
Line Length, Step 10%
Level 2
Point on Wave 0 .. 330°, Step 30°
Repetitions
10 times per Network Simulation
Results
Minimum Tripping Time
Maximum Tripping Time
Mean Value
89 89
ATPDesigner and CMC
ATPDesigner – Design and Simulation of Power Networks
Hochschule für
Technik und Wirtschaft
des Saarlandes
University of Applied Sciences
Prof. Dr.- Ing. Michael Igel
See Additional Information in the Help File
Measuring Operating Times of a Protection Device
Correction of Measured Operating Times
Automated Test Procedures
Concept of Test Procedures
How to define a Test Procedure
Test Level 2
Test Procedure Comments
Monitoring Ranges
Operating Times Dialog for Test Procedures
Configuration of CMC Test System
Menu Item Configuration of Amplifiers
Connecting CMC Test System During Startup
How ATPDesigner Connects the CMC Test System
Configuration of Omicron CMC Test Systems
90 90
Hochschule für
Technik und Wirtschaft
des Saarlandes
Demonstration
University of Applied Sciences
ATPDesigner – Design and Simulation of Power Networks
Prof. Dr.- Ing. Michael Igel
Distance Protection P430 + CMC156
Reactive Reach = 80% of the Line Length
Power Network
Measuring Location 1 assigned to
Circuit-Breaker Cb1
Substation VT Ratio
Substation CT Ratio
91 91

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