TOM Industrial Consultant CAD/CAM

Software for Planning, Operation and Protection

of Electric Utility and Industrial Systems

 
 
 

Power Apparatus & System Homological Analysis (PASHA)
Drawing Routines
Load Flow
Short Circuit
Transient Stability
Motor Starting & Motor Parameter Estimation
Reliability Evaluation
Protection System Design
User Defined Equipment Modeling
On Line Monitoring and Control
Data Base

PASHA Quotation Manual , Training and Consulting

Power Apparatus & System Homological Analysis (PASHA)is a highly interactive and graphics oriented CAD tool designed to improve the analysis of planning and operation of electric utility and industrial systems. PASHA consists of many modules, each of which integrates very sophisticated analytical and numerical algorithms to provide comprehensive facilities for a user-friendly package.

Not only the words, but also the figures may not clearly show our powerful work in steel mill plants. 1700 terminals and busbars, 450 motors, 8 arc furnaces, 2 SVCs, 2000 circuit breakers ,MCCBs and fuses , 3900 relays,...400KV,63KV,33KV,11KV,6.6KV,0.4KV are simulated.

12MWhr energy saving has been achieved. Do not add costly equipment, Just adjust those that already exist.

Drawing Routines

Easy construction and modification of power system networks  Wide choice of network element  Easy data entry and filing  Extensive graphical facilities including zoom and pagination  capabilities  Merging facility  Windowing facility 

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

Graphic display of results on a single line diagram & a variety of flexible reports on screen or printer

Summary of overloaded circuits

Short Circuit

Analyzing LLL, LG, LL and LLG fault at any point in the network considering all the contributions even those from induction motors

Interactive capability for defining fault location and time

Dynamic fault analysis, symmetrical and unsymmetrical , even inside a branch

Checks circuit breakers under capacity (makes and breaks) at a touch a button

Graphic display of results on a single line diagram & a variety of flexible reports on screen or printer

Harmonic Analysis

Harmonic penetration calculation

Plotting frequency spectrum of any node in network

Sensitivity & resonance calculation

Filter design for harmonic elimination

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

Dynamic frequency analysis considering load shedding due to under frequency relays

Incorporation of relays and fuses behavior

Ability to plot up to 20 user-selected variables of a network on screen

A variety of flexible reports on screen or printer

Motor Starting & Motor Parameter Estimation

Transient stability is capable of handling motor starting Motor parameter estimation routines in data base can obtain motor parameters from any available manufacturer data released

Some of my motors start very well but some does not. I have a serious problem with the start of my 8350kw motor, Although it has a switching resistor, it does not pull out well.

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 determination may 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 in transient stability analysis  Automatic generation of reports for the devices which are not properly coordinated Interactive coordination of relays and fuses Coordination curve plotting facilities  A variety of flexible reports on screen or printer

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, even if you see half of a page.

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 we succeeded to provide the system analysts with  a highly interactive and graphical tool which helps them in on line decision-making                procedures.

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.