CYME Power Engineering Software and Solutions
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CYME Power Engineering Software


The CYME Power Engineering software is a suite of applications composed of a network editor, analysis modules and user-customizable model libraries from which you can choose to get the most powerful solution.

The modules available comprise a variety of advanced applications and extensive libraries for either transmission/industrial or distribution power network analysis.



Additional software useful to the power engineer are also available:



To request a trial version of the CYME software, click here.

CYME Power Engineering Applications for Distribution Network/System Analysis

Distribution Analysis
(CYMDIST)
To perform several types of analysis on balanced or unbalanced three-phase, two-phase and single-phase systems that are operated in radial, looped or meshed configurations. CYMDIST includes a full Network Editor as well as
- Unbalanced load flow
- Comprehensive fault flow analysis
- Load balancing
- Load allocation/estimation
- Optimal capacitor placement

The additional modules listed below require CYMDIST to run.
Advanced Project Manager Supports the collaborative and detailed preparation of a project that consists in modifications to the network with related simulations.
Network Forecaster To view, modify and create time-dependent projects (using the CYME Advanced Project Manager) consisting in modifications to the network such as the addition of any load at a given date, change/replacement of power transformers within a substation, a rephasing/reconductoring project, network switching or reconfiguration, etc.
Energy Profile Manager To perform time range analysis based on a combination of historical consumption patterns and real-time monitoring.
Reliability Assessment Provides a framework within which predictive and historical reliability assessment scenarios are run and the impacts of the related investment such as DA (Distribution Automation) can be evaluated and understood.
Transient Stability
(CYMSTAB)
To simulate the dynamic behavior of distribution systems with distributed generation under various transient events (fault application/clearing, large motor starting, disconnection of co-generation units, islanding, etc.)
Harmonics
(CYMHARMO)
Performs harmonic penetration analysis in electric power systems. It features single phase and full three-phase modeling capabilities and includes a large library of pre-defined models for network equipment and harmonic current sources.

The Frequency scan capability included in this module is also available as an independent module. This analysis provides full impedance scan results and allows the user to see problematic areas even before installing harmonic devices.
Long-Term Dynamics Analysis Time-series simulation to study the impact of insolation variations, wind fluctuations and load variations on network controls such as regulators, load tap changers and switched capacitors.
Low-Voltage Distribution Network Modeling Functionality to model in detail low-voltage distribution systems within a one-line diagram.
Volt/VAR Optimization Module that assists in finding optimal settings for Volt/VAR control devices to optimize distribution networks.
Arc Flash Hazards To analyze and promote the electrical safety for employees working on or near electrical equipment. It computes the necessary parameters required to assess the risk level and adopt the adequate safety procedures.

Two modules are available to address specific needs. One for distribution networks, with arc flash hazards calculations based on the NESC© 2007 standard, and the second one based on the NFPA-70E© and IEEE-1584™ standards to analyze arc flash hazards in industrial power networks.
Dynamic Motor Starting To simulate the starting of an induction motor or of a synchronous motor and obtain graphs of the results as a function of time or speed.
Load Flow Contingency (N-p) To assist in power flow related static contingency analysis. To create contingency events and single- or multiple-outage scenarios and compare to a base case.
Protective Device Coordination The module provides engineers with a wide range of tools to efficiently and accurately design and validate the coordination scheme of their power system.
Switching Optimization Assists in determining the optimal feeder configuration that will minimize losses, improve the voltage profile and balance the load between feeders.
Single Contingency Assessment and Restoration To study the impact of single forced or planned outages on the electrical distribution system and find the optimal switching plan to restore electrical power to priority customers and to recover the maximum possible load in the affected areas.
Enhanced Substation Modeling To model all the major components of the distribution substation and any sub-network such as the detailed modeling of an industrial facility.
Secondary Grid Network Analysis Allows the Power Flow and Short Circuit analyses of heavily meshed secondary grid network distribution systems for any voltage level.
Geographic Overlay To display raster or vector map images (geographical land-base such as DWG, DXF, SHP, etc) as layers directly underneath the electrical model.


Additional Engineering Applications and Facilities for Distribution:
Other modules can be added to the CYMDIST suite of applications and modules: CYMFLOW, CYMFAULT, Voltage Stability and Optimal Power Flow.

In addition, the following applications are useful to the power engineers:

CYME Scripting Tool with Python® Scripting tool allowing the execution of commands and scripts. Through Python scripts, you can extend the functionalities of the CYME software.
CYME COM Module As a programming language-independent process, the CYME COM module allows the environment of your choice to communicate with the CYME software to access different pre-defined functions and calculations.
CYME Gateway To create and maintain the CYME network data model. The connectivity network extracted from the GIS is accurate, electrically complete, with actual loads and switch status; and this network model can be updated easily.
Protective Device Coordination (CYMTCC) Generates the time-current characteristic curves for the protective devices of a given feeder. The results can be visualized on-screen, plotted on standard log-log paper and/or routed to various printers. The Arc Flash Hazards analysis module can be added to the CYMTCC software to further complement the analyses.
Substation Grounding Grid Design and Analysis (CYMGRD) To optimize the design of new grids and reinforce existing grids, of any shape, by virtue of built-in danger point evaluation facilities.


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CYME Power Engineering Applications for Transmission and Industrial Network/System Analysis

Network Editor The Network Editor is the graphical user interface underlying the CYME analyses modules. It provides the user with great flexibility in creating the one-line diagram of the network as well as providing a wide variety of options to customize the displays and reports.

All the modules presented in this section require the Network Editor to run.
Power Flow
(CYMFLOW)
To perform power flow analysis in three-phase electric power networks. The module utilizes state of the art sparse matrix/vector methods and multiple solution algorithms.
Short-Circuit
(CYMFAULT)
To simulate fault conditions in three-phase electric power systems. Multitude of reports and flexibility in applying all industry-accepted standards.
Load Flow Contingency (N-p) To assist in power flow related static contingency analysis. To create contingency events and single- or multiple-outage scenarios and compare to a base case.

Requires CYMFLOW to run.
Arc Flash Hazards To analyze and promote the electrical safety for employees working on or near electrical equipment. It computes the necessary parameters required to assess the risk level and adopt the adequate safety procedures.

Two modules are available to address specific needs. One for distribution networks, with arc flash hazards calculations based on the NESC© 2007 standard, and the second one based on the NFPA-70E© and IEEE-1584™ standards to analyze arc flash hazards in industrial power networks.
Protective Device Coordination The module provides engineers with a wide range of tools to efficiently and accurately design and validate the coordination scheme of their power system.
Dynamic Motor Starting To simulate the starting of an induction motor or of a synchronous motor and obtain graphs of the results as a function of time or speed.

CYMFLOW is recommended to fully benefit from the capabilities of this module.
Harmonics
(CYMHARMO)
To perform harmonic penetration analysis in electric power systems. It features single phase and full three-phase modeling capabilities and includes a large library of pre-defined models for network equipment and harmonic current sources.
DC Load Flow and Short-Circuit Analyses DC Load Flow and Short-Circuit Analysis modules enhance the capabilities of the software to execute simulations on DC back-up systems and safe supplies.

Require CYMFLOW and/or CYMFAULT to run.
Transient Stability
(CYMSTAB)
To simulate the electro-mechanical response of an electric power system to transient disturbances. It includes a large library of pre-defined models for network equipment and control systems.

Requires CYMFLOW to run.
Voltage Stability To assess the ability of a power system to maintain stable voltages under different contingencies and loading conditions.

CYMFLOW is recommended to fully benefit from the capabilities of this module.
Optimal Power Flow Allows the user to engage in advanced system planning studies to optimize system performance, examine cost-efficient operational planning alternatives, articulate system control strategies and rationalize equipment utilization, resulting in better overall system asset management.

CYMFLOW is recommended to fully benefit from the capabilities of this module.
Geographic Overlay To display raster or vector map images (geographical land-base such as DWG, DXF, SHP, etc) as layers directly underneath the electrical model.


Additional Engineering Applications and Facilities for Transmission and Industrial:
Other modules can be added to the suite of applications and modules for the analysis Transmission and Industrial power systems: Advanced Project Manager, Enhanced Substation Modeling.

In addition, the following applications are useful to the power engineers:

CYME Scripting Tool with Python® Embedded scripting tool allowing the execution of commands and scripts. Through Python scripts, you can extend the customization of CYME.
CYME COM Module As a programming language-independent process, the CYME COM module allows the environment of your choice to communicate with the CYME software to access different pre-defined functions and calculations.
Protective Device Coordination (CYMTCC) Generates the time-current characteristic curves for the protective devices of a given feeder. The results can be visualized on-screen, plotted on standard log-log paper and/or routed to various printers. The Arc Flash Hazards analysis module can be added to CYMTCC to further complement the analyses.
Substation Grounding Grid Design and Analysis (CYMGRD) To optimize the design of new grids and reinforce existing grids, of any shape, by virtue of built-in danger point evaluation facilities.


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CYMCAP Cable Ampacity Calculations

Cable Ampacity Calculations
(CYMCAP)
Performs ampacity and temperature rise calculations for power cable installations.

The additional modules listed below require CYMCAP to run.
Multiple Duct Banks Determines the steady state ampacity of cables installed in several neighboring duct banks and/or backfills with different thermal resistivity.
Cables in Tunnels Determines the temperature, steady state, cyclic and transient ampacity of cables installed in unventilated tunnels.
Cables in Troughs Determines the thermal rating of cables installed in filled or in unfilled troughs.
Multiple Casings Allows the user to determine the steady state unequally loaded ampacity and/or temperature rating of cables installed in one or more non-magnetic casings buried, laying on the sea bed or completely immersed in water.
Duct Bank Optimizer Determines the optimal placement of several circuits within a duct bank. More specifically, the module can recommend the various circuit disposition within the duct bank
Magnetic Fields Computes the magnetic flux density at any point on or above the surface of an underground cable installation.
Cable Impedance Calculation Calculates the electrical parameters for cables necessary for performing network studies at the power frequency (50/60 Hz).
Short Circuit Cable Rating Calculates the rating of cables for short circuit currents.
Cable Crossing To correctly take into consideration the derating effect that two circuits crossing have on the ampacity of each other, depending on their crossing angle.
Real Time Thermal Rating (RTTR) Used in conjunction with temperature sensing systems, computes future cable ampacity and estimates the conductor temperature from the fiber measured temperature and performing emergency ratings with the transient engine.
Cable Historical Operating Temperature Estimation (CHOTE) Evaluates the temperature at which underground cable systems have operated during their in-service life.


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Contact information

International & Canada
Tel:(450) 461-3655
Fax:(450) 461-0966
 
USA
Tel:(800) 361-3627
 
Web:  cymeinfo@eaton.com