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
Advanced Project Manager Supports the collaborative and detailed preparation of a project that consists in modifications to the network with related simulations.
Automated Network Forecast Analysis To create, view and modify 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.
Steady State Analysis with Load Profiles To perform accurate time range analysis based on a combination of AMR data and historical consumption patterns.
Distribution State Estimator To analyze the unbalanced power flow and the voltages at every level of a distribution power system.
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.
Techno-Economic Analysis Facilitates the evaluation of the feasibility and the profitability of a project based on the factual system model.
Transient Stability 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 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 irradiance variations, wind fluctuations and load variations on network controls such as regulators, load tap changers and switched capacitors, and on the behavior of battery energy storage devices.
Integration Capacity Analysis Addresses DER and load interconnection issues by determining the maximum allowable capacity that can be added at any point of the network without violating a set of constraints. Allows to quickly assess the hosting capacity of the network and filter out interconnection requests that are non-compliant.
EPRI DRIVE™ The calculation method provides aggregate and granular hosting capacity results for each distribution feeder and considers numerous circuit-specific attributes.
DER Impact Evaluation Assists engineers in their generation interconnection system impact studies. The analysis automates a series of time-consuming, repetitive and error-prone verifications and returns insightful results that clearly identify violations.
Network Disturbance Assessment D-A-CH-CZ To determine the acceptability of a new load or generator interconnection by evaluating its impact on a series of power quality criteria.
Distance Protection Analysis Helps engineers design and verify their protection scheme, and address different coordination issues in any power system.
Volt/VAR Optimization Module that assists in finding optimal settings for Volt/VAR control devices to optimize distribution networks.
Optimal Voltage Regulator Placement Allows the installation of voltage regulators at optimal locations on a distribution feeder.
Optimal Recloser Placement Designed to help engineers handle the complexity of the system reliability improvement issue.
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.
Motor Starting For the dynamic, locked rotor and maximum start size analyses dedicated to simulating the effects of induction and synchronous motor starting in three-phase electric power systems.
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.
Network Configuration Optimization Assists in determining the optimal feeder configuration that will minimize losses, improve the voltage profile and balance the load between feeders.
Contingency Assessment and Restoration To study the impact of 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.
Low-Voltage Secondary Distribution Modeling Functionality to model in detail low-voltage distribution systems within a one-line diagram.
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.
Online Maps Service Provides the capability to display Google™ maps and MapQuest™ Open maps as layers underneath the geographical view of your electrical network model.


Additional Engineering Applications and Facilities for Distribution:
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 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 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.
Fault Analyses For the determination of short-circuit currents that result from different fault phenomena, the estimation of fault locations, the identification of under-rated equipment in electric power systems and the sizing of various system components.
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.
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.
DC Arc Flash Hazards Analysis To help engineers identify arc flash risk levels of their DC network and adopt the necessary safety measures
Low Voltage Cable Sizing To select the right type of cable for low voltage installations
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.
Motor Starting For the dynamic, locked rotor and maximum start size analyses dedicated to simulating the effects of induction and synchronous motor starting in three-phase electric power systems.
Harmonics 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 The 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.
Transient Stability 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.
Voltage Stability To assess the ability of a power system to maintain stable voltages under different contingencies and loading conditions.
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.
Techno-Economic Analysis Facilitates the evaluation of the feasibility and the profitability of a project based on the factual system model.
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.
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.


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Solutions

Software Training

Maintenance Services

Customer Technical Support
Useful links

Contact information

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