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"Increasing penetration of embedded generation has made system analysis ever more complicated. CAPE allows us to efficiently address these challenges."

Hugh Borland
ESB Networks

The Siemens CAPE Team develops and markets CAPE software to help you model electrical transmission networks' protection systems. CAPE software is the world's most powerful set of tools for protection engineering.

CAPE at a Glance

CAPE Relay Library"

CAPE Relay Library

CAPE comes with the world's largest library of detailed relay models, with over 6,000 relay styles, reclosers, and fuses, tailored for protection engineers. Unlike generic placeholder models, CAPE’s detailed relay models address internal and external supervision, phase and fault selection logic, CT and VT input expressions, and actual phase and ground-distance comparator equations. Detailed relay models respond accurately to setting changes. Add new relay models from CAPE's master library to your own database easily, using Database Editor's IMPORT command.

Rely on over 6,000 detailed, manufacturer-specific relay styles stored in the CAPE database, the largest library of detailed models anywhere.
Database Editor

Database Editor

The control center for building and managing network and protection data, Database Editor allows engineers to enter information once and use it throughout CAPE. It offers forms for faster protection data entry, time-saving techniques for importing relay, recloser, and fuse models, tools for merging databases and building transformer models. Database Editor gives you many different ways to access data, including a powerful search tool.

Pick a component from the network and protection toolbars to add it to the drawing.
Post-mortem analysis

Modeling with One-Line Diagram

CAPE's One-Line Diagram's intuitive graphic interface to all engineering functions gives you a quick way to get to all the data in all CAPE modules. It allows graphical building, maintenance, and analysis of the entire network and protection system. Triple and quadruple bus structures can optionally be created within One-Line Diagram as detailed bus structures.

Post-mortem analyses of actual fault events help you find out what really happened.
Relay Setting

Relay Setting

Automate the process of generating relay settings by putting your company’s relay setting procedures into user-defined macros to perform fault studies, compute raw relay settings, and select actual taps. CAPE Relay Setting performs the repetitive, time-consuming calculations while engineers make the final decisions and adjustments.

Quickly select one relay from thousands, supply run-time parameters, and then see CAPE compute the settings in as little as a few seconds.
Line Constants

Line Constants

Compute positive and zero-sequence impedances of overhead transmission lines. CAPE can handle any number of conductors on a tower, any number of towers in parallel, in-service and out-of-service dates, and complex configurations.

With CAPE Line Constants, you can model and compute complex mutual couplings, even in heavily congested rights-of-way.


CAPE-TS Link brings together CAPE's detailed protection modeling and simulation environment with the transient stability modeling environment of PSS®E. Planning engineers get access to a ready-made protection model for use in their planning studies without having to reinvent the protection wheel.

This plot of the voltage magnitude and angle at a bus includes annotations showing when the disturbance was applied and when breakers opened. The oscillation in the magnitude of the voltage shows instability after the fault is cleared.


Integrating Asset Management and Protection.

IPS-CAPE Bridge is a product developed jointly by Electrocon and IPS to facilitate the exchange of information between CAPE and the IPS software. Electrocon has always believed that the data used in CAPE should be made easily available to CAPE users; after all, the data belongs to our customers, not Electrocon. The IPS-CAPE Bridge requires a license from both IPS and Electrocon.


NERC PRC Compliance

Support for Industry Regulatory Standards.

With the increasing number of regulatory requirements being imposed on utilities, it is important to have a relay protection simulation software package that can assist with meeting these voluminous requirements.

Wide Area Coordination

Wide Area Coordination Reviews

Wide Area Coordination Review of Protective Devices.

Automation has made this clearly desirable objective both practical and affordable, where previously it was an ideal that even fully staffed protection groups could not achieve. Electrocon’s innovative methodology uses the existing network model as a basis to verify coordination among backup protection devices throughout a high-voltage transmission system. Studies may involve many different types of operating conditions and potential network outages. The variety of conditions, faults, and protective devices which may need to be studied are one of the factors that has made this type of study impractical using manual techniques. Using a sophisticated macro to effectively supervise and conduct the entire study, the process results in a high-level summary report (one line of text per fault condition). The summary report simplifies the essential human work of analyzing the results of the study.