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PASHA Quotation Manual
1. Introduction
Power Apparatus & System Homological Analysis (PASHA) is a highly interactive, very powerful software product designed to improve the analysis of planning & operation of electric utility & industrial systems. It contains some very advanced, co-ordinated algorithms for load flow, fault level, relay coordination, harmonic analysis, reliability evaluation & transient analysis & makes extensive use of computer graphics to provide a flexible, highly interactive & user friendly procedure for system input, results output and program control functions. PASHA is the product of close-co-operation with the electrical industry, from the initial specification of the objectives to the final, fine tuning of the program for daily use by power engineers in the industrial environment.
1.1 The User-Friendliness of PASHA
Power system analysis involves some very complex analytical and numerical processes. Usually, the input of system data, the manipulation of programs and the extraction of the essential results, for an engineering assessment, constitute a very substantial additional load on the system designer and operators, as they frequently involve a fairly intimate knowledge of the analytical aspects, as well as computer operating system procedure and commands.
To overcome this overhead, the algorithms and the interactive procedure used in PASHA effectively remove all organizational aspects from the foreground and allow the user to concentrate on his primary objective: the quality of performance and design of his power system.
This is achieved by the 'user-friendly' interface PASHA provides between the algorithms and the user.
1.2 The Different Modules of PASHA
PASHA 2000
1. Drawing Routines
- Easy construction and modification of power system networks
- Wide choice of network elements
- Easy data entry and filing
- Direct access to edit pages from drawing
- Extensive graphical facilities including zoom and pagination
capabilities
- Merging facility
- Windowing facility
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Load Flow
- Utilizing fast decoupled method & highly sparsity routines capable of analyzing up to 1800 busbars and more (option)
- Automatic selection of Slack, PQ, PV, PQ-LV, PQ-RV and PQ-LQ busbars
- Load changing and outages
- Incorporation of SVC and Arc furnaces models
- Looped and radial systems
- Multiple isolated islands
- Outage with a click of mouse
- Unlimited study cases
- Graphic display of results on a single line diagram & a variety of flexible reports on screen or printer
- Summary of overloaded circuits
Optimal Power Flow
- Starts from available system condition (off-line or on-line)
- Optimal active and reactive power flow
- Optimal active power flow
- Optimal reactive power flow including transformer tap setting
- Up to fifth order generation cost/MW characteristics
- Loss optimization
- Cost optimization
- Cost and loss optimization
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Short Circuit
- Analyzing LLL, LG, LL and LLG fault at any point in the network
- Analyzing device (Transformer [primary or secondary] ,generator, and motor internal faults
- Interactive capability for defining fault location and time
- Plotting fault current waveforms versus time
- In branch symmetrical and Unsymmertical fault analysis
- Looped and radial systems
- Multiple isolated islands
- Phase open circuit fault
- Graphic display of results on a single line diagram & a variety of
flexible reports on screen or printer
Circuit Breaker Checking
- Automatic device duty checking (Making & Breaking)
- Includes breaker interrupting cycles
- Checks for all kind of faults LLL, LG, LL and LLG
- Full percentage report
Harmonic Analysis
- Harmonic penetration calculation
- Plotting frequency spectrum of any node in network
- Sensitivity & resonance calculation
- Filter design for harmonic elimination
- Harmonic voltage to current conversion
Transient Stability and three phase transient stability
- Simultaneous solution of network algebraic and machine differential equations
- Automatic selection of machine model depending on available data
- Incorporation of AVRs and governors
- Automatic control of integration step size to eliminate interface errors
- All relays actions are included
- Dynamic frequency analysis considering load shedding due to under frequency relays
- Considering under voltage relays
- Automatic scaling on graphs
- Ability to plot up to 20 user-selected variables of a network on screen
- Ability to plot RMS or instantaneous magnitudes (including DC offset) in transient stability
- Ability to plot Red, Yellow, or Blue phases in three phase transient stability
- A variety of flexible reports on screen or printer
EMTP fast transient data preparation
- Direct and approximate EMTP data file preparation
Motor Starting & Motor Parameter Estimation
- Transient stability is capable of handling motor starting
- See the effect of starting in all over the system
- Resistor starting included
- Synchronous machines start up are included
- Motor parameter estimation routines in data base can obtain motor parameters from any available manufacturer data released
Some motors start very well but some do not. Figure shows a serious problem with the start of 8350kw motor (blue one), Although it has a switching resistor, it does not pull out well.
Note on motor current at pull out time.
Reliability Evaluation
- Interactive failure analysis using minimal cut sets
- Graphic display of results on single line diagram
- Reports include: minimal paths, minimal cut sets, permanent failures, transient failures, maintenance failures, total failure rates, total repair times and total outage times
- Active and Passive failures can be studied
- Interactive facility for sensitivity analysis
Protection System Design
- Accommodation of overcurrent, directional, distance and unit protection relays as well as fuses and MCCBs
- Incorporation of dynamic behavior of relays including u/v and bus transfers in transient stability analysis
- Loop and radial
- Automatic generation of reports for the devices which are not properly coordinated
- Interactive coordination of relays and fuses
- Reports of device operation times due to fault in any branch
- Reports of device operation times due to device (Transformer [primary or secondary] ,generator, and motor internal fault
- Automatic relay checking
- Automatic primary/backup path finder in a multipaths network
- Coordination curve plotting facilities
- A variety of flexible reports on screen or printer
Relay automatic checking
- Accommodation of overcurrent, directional, distance and unit protection relays as well as fuses and MCCBs
- Loop and radial
- Checks all protective devices against all types of faults in short circuit mode
- Checks all protective devices against three phase faults in transient stability state
- Checks all protective devices against all types of faults in three phase transient stability states
- The DC offset will be included in transient stability states with user choice,Unique option
- Lists the uncoordinated relays
Protection characteristics for one out of the thousand paths exist in a steel mill plant. PASHA determines the path Automatically. The state of the art is obvious.
User Defined Equipment Modeling
- Ability to construct block diagram transfer functions using predefined blocks
- Ability to select a variety of nonlinear elements including: time delays, integrators, limiters, PIDs, functions, switches, etc.
- Ability to construct multi input/output systems
- Incorporation of block diagram models of various power system equipment in transient stability analysis
- Isolated study of dynamic models
- Ability to plot any selected variable of the model
- A variety of flexible reports on screen or printer
On Line Monitoring & Control
- By connecting PASHA to SCADA system the operators are assisted with a highly interactive and graphical tool which helps them in on line decision-making procedures
- Power system management
- Detect system problems
- Perform "what if" studies using online or stored data
- Perform simulation on snap shuts
- Bad data measurement detection
- Simulate Load flow, Optimal power flow, Short circuit, Relay checking & coordination, Motor starting, Transient operation of system using PASHA off-line facilities with data that reflects the real-time status and loading of the system
- In monitoring mode
- Acquires real-time data from electrical system
- State estimation using the most advanced and reliable methods
- Quasi steady state analysis shows frequency deviation
- Alarm and warnings on overloads and voltage violations
- In simulation mode
- On-line load flow
- Contingency analysis
- Security checked switching
- Load shedding
- Training simulator
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Data Base
- Special facility for the entry or storage of typical or prespecified plant data
- Retrieving the previously stored data for setting up data for any number of new networks
- Ability to connect to any SQL data base program on request
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PASHA Distribution
- GIS based graphics
- Minimize cable and routing costs
- Minimize loss
- Optimal design
- Connects to PASHA (optional)
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1.3 Module Selection
The customer may order any module or a combination of modules. Generally, these are user selectable. However, some of the modules need the application of the others. These are indicated by their module numbers in the following table. The quotation * stands for those modules that the application of them are not necessary but there would be a benefit to have them in combination.
1 2 3 4 5 6 7 8 9
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1 |
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DRAWING |
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2 |
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LOAD FLOW |
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1 |
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*5 |
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3 |
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FAULT |
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1 |
*2 |
* |
*5 |
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4 |
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TRANSIENT |
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1 |
2 |
*3 |
*5 |
*6 |
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5 |
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DATABASE |
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1 |
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*7 |
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6 |
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PROTECTION |
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1 |
*2 |
3 |
5 |
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7 |
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UDEM |
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1 |
2 |
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*5 |
*6 |
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8 |
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HARMONIC |
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1 |
*2 |
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*5 |
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9 |
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RELIABILITY |
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1 |
2 |
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*5 |
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2. The Main Features of PASHA
Full description of PASHA capabilities are described in its manual, however some of the main features are presented here.
PASHA is a graphics-oriented Computer Aided Design suited for the design & modeling of power systems. The package combines some very advanced power system analysis programs with extensive editing & graphical input/output facilities, allowing a high degree of interaction. The user can conveniently control the system configuration & operating conditions as well as the degree of detail and the sequence in which the required studies are executed, by selecting appropriate options from menu lists displayed on the screen.
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3. About the manual
The manual is designed to be used both for initial familiarization with the PASHA package and as a long term reference manual when the user is conversant with most of the program's features.
It is divided into 11 chapters that describe the main features of PASHA, along with a set of 9 appendices for reference purposes.
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4. Packaging
The software will be installed in machine-executable code form, on a PC based computer base frame (1) month after the purchase order. Network option is available, please contact for details.
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5. Training Course
The training course comprise of the following sections:
- Basic knowledge about the analysis of the electrical networks
- Industrial system planning & operation (for the customers from industry) or Power system least cost planning & operation (for the customers from utility)
- Software training
- Application of PASHA on the design & operation of the electrical networks.
The course will be held in one month and up to ten employees of the customer may attend this course. The group of trainees should be electrical engineers.
The training will take place (2) months after the purchase order.
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6. Scope of services
The services specified in this quotation comprise:
- Supply of PASHA software as per chapters 1 and 2
- Documentation as per chapter 3
- Packaging as per chapter 4
- Software training course as per chapter 5
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7. Time Schedule
The services as specified in chapter 6 of this proposal will carry out within (1) months after coming into force of the contract.
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8. Engineering services
Tom also offers a full range of engineering consulting, design, programming, and implementation and training services.
Option is available for implementation of the customer electrical networks into the computer. For details of the studies, please ask for one of the following contract proposals:
- Steel Mill Industry
- Metal Industry
- Chemical and petrochemical heavy industry
- Offshore and onshore industry
- Transmission and distribution system
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9. Upgrades
Registered owners of the PASHA are eligible to receive upgrades to the basic system and purchased options at no cost for a period of one year from the date of installation of software.
A subsequent annual maintenance, upgrade, and support contract is available for 12% of the current software price, $500 minimum.
Registered owners, who maintain on the annual service, is eligible to receive the new modules of PASHA which will release after the date of the original contract in 40% reduced price.
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10. Warranty
All engineering software is fully warranted against defects for a period of one calendar year from date of installation.
Tom replaces the software or the keys if they prove to be unreadable due to defect of material or manufacturing except where it is found that the damage is because of attempting to violate the protection keys.
Tom keeps his right to check the condition of his software and protection keys whenever it may be necessary on the customer workstation.
If the software, for any reason does not satisfy the customer, there is a policy of money back within three months. Please contact for detail.
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11. Hardware requirement
Tom recommends the use of Personal computer with Pentium processor with the following features:
- SVGA high resolution with 20" colour monitor
- Minimum of 40GB disk storage capacity
- HP plotter size A0
- Laser printer
- Windows 95/98/NT/2000/XP/VISTA/7 (for windows version)
The supply of any computer hardware & standard software is not included in the scope of supply quoted here. From time to time TOM awards a complete set of computer system with his software package. Please contact for detail.
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12. Restricted use
The PASHA has single user/single system license and customer agrees not to copy the software. Whereby a separate license is required for each user if the software is installed on a network or being use simultaneously on different machines.
All information supplied by Tom should be treated as secret by customer and shall not be made accessible to third parties.
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TOM Industrial Consultants CAD/CAM
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