CYME 9.2 (with CYMDIST), CYMCAP 8.2 Rev1, and CYMGRD 8.0 Complete Features

MarcelMan

CYME 9.2 (with CYMDIST), CYMCAP 8.2 Rev1, and CYMGRD 8.0 Complete Features

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.

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.

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.
Cable Historical Operating Temperature Estimation (CHOTE)	Evaluates the temperature at which underground cable systems have operated during their in-service life.

Other CYMCAP 8.2 Features

Basic Modeling Capabilities

·        Detailed graphical representation of virtually any type of power cable, including single-core, three-core, belted cables, pipe-type, submarine, sheathed, armored cables, cables with jacket around each core, all common extruded insulation types of cables and PILC cables.

·        Different cable installation conditions such as directly buried, thermal backfill, duct bank buried, ducts with different filling materials (air, water, solid like bentonite).

·        Modeling of cables and groups of cables in air with various types of supports (on ladder, on trays, on racks, on the wall), on riser poles.

·        Different cable types within one installation for most installation types. No limitation on the number of cables that can be modeled.

·        Multiple cables per phase supported with detailed modeling of the sheath/concentric wires/armour mutual inductances (greatly influences circulating current losses which de-rates cables ampacity).

·        All types of sheath bonding arrangements for flat and triangular formations (single-point bonded, two-point bonded, cross-bonded) with explicit modeling of minor section lengths, unequal cable spacing, etc.

• Detailed reports available with all intermediate calculations required to compute the cables' ampacity/temperature. Ready to use reports and possibility to automatically include company's logo (see attached sample report): Summary report, cable report, Electrical report, Steady-state report, Short -circuit report. Formulae can be displayed alongside each parameter to help validate easier the computations, providing more confidence in the results.
  

Analytical Capabilities – Steady State

·        Iterative techniques based on Neher-McGrath and IEC-60287© methods. Optimization approach applied to maximize the sum of ampacity for all circuits of an installation.

·        Compliance with North American practice and with IEC standards IEC 60287©, IEC 60228©, IEC 60853©, IEC 60949© etc.

• Cyclic loading as per two methods available: Neher-McGrath and IEC-60853©.
• Finite element modeling and computations for multiple ductbanks/backfills installations.
  
  

·        Modeling of migration moisture (soil dry out) and nearby heat sources/sinks.

·        Non-isothermal earth surface modeling.

Analytical Capabilities – Transient

·        Six transient options available:

• Ampacity given time and temperature.
• Temperature given time and amplitude.
• Time given apacity and temperature.
• Temperature as a function of ampacity.
• Ampacity as a function of time.
• Temperature as a function of time.
  
  

·        Possibility to compute the temperature of other layer than conductor: sheath, armor, exterior (ie jacket or duct).

·        User-defined load profiles per circuit, step loads and variable load profiles supported.

·        Possibility to export load from a TXT or Excel file.

·        Multiple cables per installation, different cable types.

·        Circuits can be loaded simultaneously or one at a time.

Additional Modeling and Analysis Capabilities (add-on modules)

·        Additional installations available: Tunnel (ventilated or not), troughs (filled and unfilled), multiple casings in various layout conditions (direct buried, laying on the sea bed, completely immersed in water) (typically used to model directional bored configurations), multiple ductbank backfill installations used to model installations involving more than a single ductbanck/backfill and/or non-uniform soil with several soil layers of various thermal resistivity (see brochure).

·        Additional analysis available: ductbank optimizer, magnetic fields computation, detailed cable impedance calculation, short-circuit cable rating (as per IEC 60949©), circuits crossing based on IEC 60287-3-3 (see brochure).

·        A new module has been released recently, the parametric Study Add-On Module ( CYMCAP -PARAM). It allows the user to perform batch -simulations by varying one or several parameters of a base model (environmental parameters, distance between cables/ductbanks/ backfills etc., size of ductbanks/backfills, size of ducts, etc.). The module offers a convivial interface to create scenarios and visualize results, and a full flexibility for an unlimited combination of numerical parameters that can be varied. Graphics and reports are available for comparison and design optimization purposes.

·        Possibility to assign a temperature constraint on any metallic layer and possibility to limit the temperature at the backfill/ductbank surface (add-on module).

·        Finite element computations for multiple ductbank/backfill installations which can support unlimited number of layers (soil layer/ductbank/backfill) of different thermal resistivity each).

Other criteria:

·        CYMCAP  has been extensively validated in-house and externally with field measurements and against finite-element programs (Massif, COMSOL).

• Collaboration with George J. Anders. Fellow of IEEE. World expert in the field of ampacity calculations of electric power cables, Dr. Anders has published over 50 papers in IEEE Transactions on cable modeling and ampacity rating, wrote 3 books and taught numerous courses on cable rating issues. Dr. Anders is a Canadian representative in the WG19 of the International Electrotechnical Commission (IEC) which develops international standards for cable rating calculations and CIGRE working groups B1.35 and B1.56 dealing with cable ampacity issues.
  
  

·        CYMCAP  is a world-class reference in the industry for modeling and rating underground cables '  installations. Credibility of 30 years and worldwide community of users (see partial list of CYME users):

• Utilities: RTE (France), REE (Spain), BC Hydro (Canada), ConEd New York (USA), Iberdrola (Spain), Ergon (Australia), Elia (Belgium), ComEd Chicago (USA), HECO (Hawaii) , etc.
• Cable manufacturers: ABB, Brugg Cables, General Cables, Prysmian, Jeddah Cable, etc.
• Consulting companies: Powereng, Electrical Consulting Engineers, AECOM, Morgan Sindall, Tractebel, Worley Parsons, etc.
  
  

CYMGRD 8.0 Features

Eaton's CYMGRD software is a substation grounding grid design and analysis program specially developed to help engineers optimize the design of new grids and reinforce existing grids, of any shape, by virtue of easy to use, built-in danger point evaluation facilities. User-friendly data entry, efficient analysis algorithms and powerful graphical facilities make the CYMGRD software an efficient tool to help the engineer arrive at technically sound and economical designs. The program conforms to IEEE 80 2000, IEEE 81 1983 and IEEE 837 2002.

Analytical capabilities

• Finite element analysis of the ground grid conductors and rods
• Computation of the station ground resistance (Rg) and the Ground Potential Rise (GPR)
• Touch and surface potential analysis, inside and outside the grid perimeter, with color display in 2D or 3D representation
• Step voltage analysis
• Uniform or two-layer soil model from field measurements or user-defined values
• Computation of reduction factor (Cs)
• Library of the most common types of surface layer materials
• Library of typical station soil resistivity values
• Safety assessment calculations for maximum permissible touch and step voltages as per IEEE 80 2000
• Current Split Factor (SF) estimated from substation configuration data as per IEEE 80 2000
• Computation of the Decrement Factor (DF) from bus X/R ratio and shock duration data as per IEEE 80 2000
• DC component of asymmetrical fault current taken into account in the computations
• Electrode analysis for the optimal sizing of conductors and rods based on the most common type of electrode material as per IEEE 80 2000 and IEEE 837 2002
• Supports symmetrical or asymmetrical grids of any shape
• Arbitrarily located ground rods
• Ability to model return electrodes and distinct electrodes
• Ability to model concrete encased rods
• Computation of maximum allowable single phase to ground fault current for a specified grid
  

CYMGRD/AUTOCAD interface module

Eaton's CYMGRD/AUTOCAD Interface module allows the user to alternate between the AutoCAD and the CYMGRD environments.

This utility is not a substitute for AutoCAD. In fact, AutoCAD remains a firm software requirement, because it is AutoCAD that will produce the necessary *.DXF or *.DWG file(s) that contain the pictorial description of the substation grid layout realized with the CYMGRD software.

Simulation results management

The charts functionality allows:

• Graphical comparison of deduced soil model with field measurements, for model acceptance
• Color-coding of the surface potential gradients based on user-defined thresholds for touch or surface potentials. Any area of ​​the grid can be selected with the mouse for detailed calculations and danger point evaluation
• Equipotential contours for surface potentials in either 2-D or 3-D plots, with facilities to examine the graphs from any desired viewing angle
• Graphics of touch and step voltage variation along any straight line, with comparison to the safe values ​​computed by the safety assessment module
• Graphic indications on the 2-D grid layout of the area being analyzed for touch and step voltages, for easy identification of hazardous locations
  
  

For more information about CYME 9.2 (with CYMDIST), CYMCAP 8.2 Rev1, and CYMGRD 8.0 Complete Features, please contact   fast.forever24@gmail.com