ETAP PowerStation 4 - ISI Academy Eng Courses/ETab... · ETAP PowerStation ... any devices and Time-Current Curve (TCC) ... The following steps describe actions needed for preparing

ETAP PowerStation 4.0

User Guide

Copyright 2001 Operation Technology, Inc.

All Rights Reserved This manual has copyrights by Operation Technology, Inc. All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Operation Technology, Inc. The Licensee may copy portions of this documentation only for the exclusive use of Licensee. Any reproduction shall include the copyright notice. This exception does not allow copies to be made for other persons or entities, whether or not sold. Under this law, copying includes translating into another language. Certain names and/or logos used in this document may constitute trademarks, service marks, or trade names of Operation Technology, Inc. or other entities. • Access, Excel, ODBC, SQL Server, Windows NT, Windows 2000, Windows Me, Windows

98, Windows XP, and Microsoft Word are registered trademarks of Microsoft Corporation. • AutoCad is a registered trademark of Autodesk. • Oracle is a registered trademark of Oracle Corporation. • PowerPlot is a registered trademark of Jackson & Associates. • Crystal Reports is a registered trademark of Seagate Software. • MATLAB and Simulink are registered trademarks of MathWorks • Screen shot(s) reprinted by permission from Microsoft Corporation. Operation Technology, Inc. believes that the information contained herein is accurate as of its publication date, and such information is subject to change without notice. This information is provided “as is” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability, fitness for a particular purpose, or non-infringement. Operation Technology, Inc. assumes no responsibility for errors or omissions in this publication or any other documents referenced in this publication.

Operation Technology, Inc. Southern California

(949) 462-0100 Sales (949) 462-0400 Fax (949) 462-0400 User Support

Chapter 14

PowerPlot Interface

In this chapter, the capabilities that allow you to perform protective device coordination studies using the PowerPlot program directly from the PowerStation one-line diagram are discussed. Using this program, you can edit the protective device settings and simply rubber band an area of your one-line diagram and display the time-current curves.

Operation Technology, Inc. 14-1 ETAP PowerStation 4.0

PowerPlot Interface Introduction

The steps required to generate time-current curves directly from a one-line diagram are as follows: • Add protective devices to the one-line diagram (Edit mode) • Run short-circuit calculations (Short-Circuit mode) • Click on the icon to save short-circuit results for PowerPlot • Switch to Relay Coordination mode • Edit protective device settings • Display time-current curves by selecting devices from the one-line diagram The PowerStation and PowerPlot programs are installed with separate installation programs. The two programs can be linked together from PowerStation by specifying the PowerPlot project name and path. You can access the PowerPlot Name and Path Editor from the Project menu on the menu bar. In this chapter, the process of creating the data link between the PowerStation and PowerPlot programs, saving short-circuit calculation results for PowerPlot, and the capabilities of PowerStation-PowerPlot interface are discussed. Adding protective devices to a one-line diagram and conducting short-circuit calculations are discussed in other chapters.


PowerPlot Interface PowerStation Data Link

14.1 PowerStation-PowerPlot Data Link You can create a data link between the PowerStation and PowerPlot programs by specifying the PowerPlot project name and path in the PowerPlot Name and Path Editor. To access this editor, select PowerPlot Path from the Project menu located on the menu bar.

Once you establish the PowerPlot project name and path, device IDs are the only link between the two programs, i.e., in order for a protective device to share properties between PowerStation and PowerPlot, it must have the same ID in both programs. From the PowerPlot Project Name and Path Editor specify the following:

PowerPlot Path Enter the path for the PowerPlot program, for example, C:\PowerPlot v.2.5. You can use Browse to find your PowerPlot directory.

PowerPlot Project Name Enter up to thirty alphanumeric characters for the PowerPlot Project Name. The program will create a PowerPlot project file by this name and will add the time-current curves that you wish to save to the indicated project file. This project file, that has the extension of .plt, will be located in the path specified in this editor.


PowerPlot Interface PowerStation Data Link

PowerPlot Project Path Enter the path for PowerPlot project file. You can also browse to find your PowerPlot project directory. Program by default assigns your PowerStation project path for PowerPlot project path. However, the PowerPlot path can be selected to be on any location on your system.

Update Short-Circuit Values Select this option to automatically transfer the following data to the PowerPlot program: • Momentary symmetrical fault currents for balanced faults (ANSI) • Phase a symmetrical fault currents for unbalanced (L-G) faults (ANSI) • Peak currents (Ip) for balanced faults (IEC) • Phase a symmetrical fault currents for unbalanced (L-G) faults (IEC) • System voltage levels Note that if a device is not connected to a faulted bus there will be no transfer of short-circuit current value to that device. When this option is selected and you edit any of the protective devices in Relay Coordination (RC) mode, nominal bus voltages and fault currents of the last saved short-circuit results will be transferred to the PowerPlot database and will be displayed in the device editors. Note that the selection of this option does not automatically update short-circuit currents and bus voltages for protective devices which already exist in PowerPlot. To update all devices, click on the Update PowerPlot with SC kA Bus kV button on the Relay Coordination Toolbar. The following data, if applicable, also transfers to PowerPlot every time you open an existing curve or create a new curve: • Current transformer ratings • Trip device types • Relay types • Transformer data • Cable data • Motor data The following device curves are available for PowerStation-PowerPlot interface program:

Fuse Electro-Mechanical, MCP, Solid-State, MCP, Thermal Magnetic Motor Relay Over Current Relay Solid-State Relay Transformer Damage Curve Cable Damage Curve Motor starting Curve

Motor starting Curve


PowerPlot Interface Project Files

14.2 Project Files When you link a PowerStation project and a PowerPlot project (by specifying the project name and path), any devices and Time-Current Curve (TCC) files that you generate from PowerStation will be added to the PowerPlot project file. It is possible to have more than one PowerPlot project file per PowerStation project. However, this structure may cause confusion and is not recommended. Assigning only one PowerPlot project per PowerStation project is recommended.

PowerStation Project

⇔ PowerPlot

Project

PowerPlot Project File A PowerPlot project consists of one file with a .plt extension. Each PowerPlot project file may consist of a number of Time-Current Curve (TCC) files. A TCC file can contain protective device characteristic curves created and added to one TCC file, which are available to be retrieved and added to any of the TCC files in the same project file. For example, the PowerPlot project file Example may contain a number of TCC files named: TCC1, TCC2, TCC3, etc. Protective devices PD1, PD2, and PD13 are included and displayed in TCC1. At the same time PD2 is also included and displayed in the TCC4 file. Note that any changes made in the PD2 settings will be reflected in both the TCC1 and TCC4 files.

Project TCC File Devices

Example TCC1 PD1 TCC2 PD2 XYZ PD13 …… TCC4 PD2 ……. PD4 TCCX PD5

Open, Modify, and Save PowerPlot TCC Files There are two methods to open an existing TCC file: • From the PowerPlot program, first select Open from the File menu and select a TCC file from the

displayed list of files. • From the PowerStation one-line diagram in Relay Coordination mode, without selecting any devices,

first click on the Display Time-Current Curve button and then select a TCC file from the displayed list of PowerPlot TCC files.

To modify the settings of a device included in a TCC file, double-click on the curve or its label to open its editor, and then modify the settings. To save a TCC file double-click on the TCC and type in the name you want.


PowerPlot Interface Project Files

14.3 Data Transfer to PowerPlot After you establish a data link between a PowerStation and a PowerPlot project, data such as voltage, short-circuit current, trip device type, relay type, and current transformer (CT) turn ratio of all protective devices can be transferred from the PowerStation project to the PowerPlot project. If you select the Update Short-Circuit Values option from the PowerPlot Name and Path Editor, the short-circuit results transfer is done automatically when you edit a protective device in Relay Coordination mode. To transfer data for all protective devices that have the same ID in both programs, click on the Update PowerPlot with SC kA Bus kV button located on the Relay Coordination Toolbar. Note that this action transfers the last saved short-circuit analysis results for all protective devices.

In addition, the following data, if applicable, will also transfer to PowerPlot every time you open an existing curve or create a new curve: • Current transformer ratings • Trip device types • Relay types • Transformer data • Cable data • Motor data The following steps describe actions needed for preparing a short-circuit current for coordination studies: 1. Configure your system for a maximum short-circuit current condition 2. Perform the short-circuit analysis of your choice (ANSI or IEC method) with all buses faulted 3. Click on the Save kA button located on the Short-Circuit Toolbar to save the following:

• Momentary symmetrical fault currents for balanced faults (ANSI) • Phase a symmetrical fault currents for unbalanced (L-G) faults (ANSI) • Peak currents (Ip) for balanced faults (IEC) • Phase a symmetrical fault currents for unbalanced (L-G) faults (IEC) • System voltage levels

Note that the short-circuit fault currents are transferred for the devices connected to the faulted buses.


PowerPlot Interface Data Transfer to PowerPlot

Motor Starting Devices Mapping of the motor starting devices from PowerStation to PowerPlot is as follows:

Device PowerStation (% Tap) PowerPlot Auto-transformer 59% < Xfrmr-50%

59% >= or 74% < Xfrmr-65% 74% >= Xfrmr-80%

Resistor 74% < Resist-65% 74% >= Resist-80%

Reactor 74% < React-65% 74% >= React-80%

Cable Insulation Class Mapping of the cable insulation class from PowerStation to PowerPlot is as follows:

PowerStation PowerPlot 0 None Bare-Copper 1 Paper PAPER 2 PE XLPE 3 ALPE XLPE 4 EPR EPR 5 SBR RUBBER 6 Rubber RUBBER 7 Rubber1 RUBBER 8 Rubber2 RUBBER 9 Neoprene THER 10 PVC THER 11 FEP EPR 12 FEPB EPR 13 MI THER 14 MTW THER 15 PFA THER 16 PFAH THER 17 RH RUBBER 18 RHH RUBBER 19 RHW RUBBER 20 SA THER 21 SIS THER 22 TA THER 23 TBS THER 24 TFE THER 25 THHN THER 26 THHW THER 27 THW THER 28 THWN THER 29 TW THER 30 UF THER 31 USE THER 32 V VARN CLOTH 33 XHHW THER


PowerPlot Interface Data Transfer to PowerPlot

Note that after you click on the Save kA button, the associated data are saved for transferring to the PowerPlot database. Calculated data is not actively transferred to the PowerPlot database unless the Update Short-Circuit Values option is checked in the PowerPlot Project name and Path Editor or until you click on the Transfer Data to PowerPlot button located on the Relay Coordination Toolbar.


PowerPlot Interface Relay Coordination Mode

14.4 Relay Coordination Mode You can access the Relay Coordination mode by clicking on the Relay Coordination button located on the Configuration & Mode Toolbar. If you have not specified the PowerPlot path, PowerStation will notify you that the PowerPlot path is not found. To edit the path, select PowerPlot Path from the Project menu on the menu bar. For more information, see PowerStation-PowerPlot Data Link.

14.4.1 Relay Coordination Toolbar Upon the selection of Relay Coordination Mode, the Relay Coordination Toolbar will appear to the right side of your screen. When using this toolbar, you can either access the PowerPlot program directly or interface with PowerStation.

Copy the Selected One-Line Diagram Elements to PowerPlot

Not Active in This Release

Not Active in This Release

Display Options

Update PowerPlot with SC kA Bus kV

Display Time Current Curve (TCC)

Edit PowerPlot Device Settings

Run PowerPlot (Stand-Alone)

Run PowerPlot (Stand-Alone) Click on the PowerPlot button to run PowerPlot as a stand-alone program from the PowerStation one-line diagram. This is useful when you want to add protective devices to the PowerPlot project file without having them in the PowerStation project file. In this mode, short-circuit fault currents and bus voltages cannot be transferred from PowerStation to PowerPlot. To learn more about this stand-alone operation, refer to the PowerPlot Quick-Start Manual or PowerPlot online Help, located in the top right corner of the PowerPlot menu bar.



When you are running PowerPlot as a stand-alone program and you decide to add protective devices to the PowerPlot project file, you should enter an ID identical to the PowerStation device ID so that you can maintain a future link between the two programs. This feature is useful when you choose to create a PowerPlot project in stand-alone mode first and then decide to use the interface capabilities. The following steps show how to add a trip device in the PowerPlot stand-alone program with the link to PowerStation: 1. From Relay Coordination mode, run PowerPlot (stand-alone) 2. Open your PowerPlot project file and select a TCC file 3. Click on the Electro-Mechanical Trips button 4. Add a device with CB10 as its device ID 5. Enter the device settings and save 6. From Relay Coordination mode return to the one-line diagram (PowerStation), select CB10, and click

on the Edit button. You can see that the electro-mechanical device created in PowerPlot is now linked to the PowerStation protective device CB10.

Edit PowerPlot Device Settings To edit the settings of protective devices from ETAP PowerStation, take the following steps: • Select a protective device by clicking on the device symbol on the one-line diagram. The selected

device will be displayed in blue. • Click on the Edit button and edit the selected device settings in the PowerPlot Editor. Note that if the

Update Short-Circuit Values option in the PowerPlot Name and Path Editor is selected, PowerPlot editors will contain the last saved short-circuit results.

• Click on the OK button to save data or click on the Cancel button to close the editor without saving any changes.



Protective device IDs are the link between PowerStation and PowerPlot databases. When you select a device in the Relay Coordination mode to edit, the associated PowerPlot editor automatically contains the ID of the device that you have selected.

Display Time-Current Curve (TCC) After editing all device settings, you can display time-current curves of any number of devices simply by: • Rubber-banding or selecting the devices on the one-line diagram • Clicking on the Display Time-Current Curve (TCC) button

Transfer Data to PowerPlot (Update) Click on this button to update calculated short-circuit fault currents of all protective devices that have the same ID in both the PowerStation and PowerPlot programs. Note that short-circuit data that is being updated (transferred) to the PowerPlot database is the last short-circuit data saved by using the Save kA button located on the Short-Circuit Toolbar. Also, the short-circuit fault currents are transferred for the devices connected to the faulted buses.



Copy the Selected One-Line Diagram Elements to PowerPlot

To copy a PowerStation one-line diagram into a PowerPlot TCC do the following:

In PowerStation select the area you want. Selection can be done by rubber banding the desired elements or by holding the Ctrl button down and left-clicking on the elements to be included.

•

•

•

•

Click on the Copy the selected OLD Elements to PowerPlot button, which is located on the Relay Coordination toolbar. Select the appropriate PowerPlot TCC from the listing

The one-line diagram will be copied to the selected TCC.




Note that the size of the copied one-line diagram depends on the zoom level in the PowerStation one-line diagram.

Documents

ETAP PowerStation 4 - ISI Academy Eng Courses/ETab... · ETAP PowerStation ... any devices and Time-Current Curve (TCC) ... The following steps describe actions needed for preparing