PSS®CAPE | Stay reliable with highly-detailed protection simulation and analysis

Access the worlds largest library of relay models, with over 

0
  • highly-detailed relay styles, reclosers, and fuses,

  • enabling Protection Engineers with the focus needed to power accurate and efficient protection simulations.

Request a free trial or more information on PSS®CAPE:

Contact us

NERC PRC Compliance Module Webinar
Webinar | On-demand

How to streamline NERC PRC Compliance Analysis and Reporting with the PSS®CAPE Compliance Module

Demonstrating compliance with the North American Electric Reliability Corporation (NERC) Protection and Control (PRC) reliability standards and the associated reporting is a time-consuming and repetitive task. Register for the upcoming webinar to learn how the new optional PSS®CAPE Compliance Module will help make your compliance process for eight of the standards more efficient and effective.

Introduction

The power that protection engineers need

Leading the market for highly detailed protection simulation, PSS®CAPE enables your protection engineers to be more effective and your power system to be more reliable.

Keeping the lights on with highly detailed protection simulation

Protection engineers face an ever-increasing landscape of challenges around power system protection. These challenges include the growth of digital technology, increased number of protection system data points (i.e. digital relays, substations, etc.) and pressure to maximize grid reliability. PSS®CAPE (previously known as Electrocon's CAPE software) supports transmission and distribution protection engineers with their entire workflow including detailed protection data collection, electronic setting management, setting calculations and validation. With its extensive library of highly detailed relay models and selection of modular protection tools, engineers can seamlessly manage voluminous and complex network data, uncover potential problems, and examine alternative solutions.

 

Increasing penetration of embedded generation has made system analysis ever more complicated. PSS®CAPE allows us to efficiently address these challenges.
Hugh Borland, ESB Networks
PSS®CAPE Overview Datasheet

Download now

Whitepaper: Protecting the Electrical Grid

 

The electric grid is changing. With an industry shift towards greener energy, utilities are facing new challenges as wind and solar plant connections increase at both the transmission and distribution levels. Within this whitepaper, learn about the emerging technical challenges for protection engineers, possible options for mitigation strategies, and how to leverage simulation and visualization tools to better understand the challenges presented.  

 

 

 

At a glance

Key features and highlights

Since the 1980's, PSS®CAPE has been optimized to meet the needs of real protection engineers. Driven by customers, we offer focused capabilities that enhance your everyday work.
  • Leverage detailed modeling capabilities based on a single open source database.
  • Complete analysis and simulation to solve data management issues, uncover potential network and protective device problems, and evaluate alternatives.
  • Run simulations on networks of any size ranging from under 100 buses to 10,000 buses – including protection systems with 20,000 to 50,000 relays or more.
  • Utilize capabilities for setting complex modern digital relays, relay coordination functions and automation of wide-area coordination studies.
  • Ability to integrate with PSS®E transient stability to allow the kind of evaluation of wide-area control needed to avoid cascading outages and blackouts.
The accuracy of PSS®CAPE’s relay models shows a high level of engineering expertise. If relays are modeled correctly, they will show proper operation or no operation conditions, taking into account all aspects of the relay functionality.
Tyler Bruning, Wolverine Power Cooperative
Modules & Packages

Flexible, modular packages for every use case

PSS®CAPE offers a number of packages designed with your work requirements in mind. Any package can be enhanced with optional modules.

The foundation - every package starts with three basic elements 

The unique built-in Database is one of the key advantages of PSS®CAPE, allowing customers to optimize data quality and reliability. The central database enables data to be automatically shared and used across all modules, eliminating the need for manual updates.   

 

The Database Editor Module is the basis for all PSS®CAPE functions. With this module, protection engineers can simplify transformer model building, including; relay, recloser, and fuse model import; data merging, and quick entry of protection data. 

 

The One-Line Diagram Module enables users to build and maintain a system one-line diagram and the display of data, short circuit results, and protection simulation responses. With this module, users get direct access for opening breakers and applying faults. 

Demonstrating compliance with the North American Electric Reliability Corporation (NERC) Protection and Control (PRC) reliability standards and the associated reporting is a time-consuming and repetitive task. The new optional PSS®CAPE Compliance Module (CM) helps streamlines the compliance evaluation process. It takes advantage of the highly detailed protection simulation capabilities of PSS®CAPE, evaluates the appropriate NERC PRC standard and creates reports with varying levels of detail that can be made part of audit-ready documentation. The results of the studies are stored and organized according to date and time. The protection engineer can study the evolution of relay settings in their system – how they have changed over time and in response to what system modification or updated regulatory requirements. 

 

Key Module Benefits

  • Setup, save and store study parameters in PSS®CAPE to intuitively rerun the same compliant study in the future
  • View colored coded study results to easily identify areas of noncompliance that require remedy actions
  • Easily maintain and store study data in a database – allowing you to compare study results over time
  • Supports with providing documentation to prepare compliance reports

Supported NERC PRC Standards

NERC PRC-001 requires the Generator Operator and Transmission Operator to coordinate with each other’s protection: “each Generator Operator and Transmission Operator shall have… revised fault analysis study…or other equivalent evidence that will be used to confirm that there was coordination of new protective systems or changes…” 

 

PSS®CAPE evaluates the coordination of the protection at different levels, such as protection monitoring adjacent transmission lines and the line protection and backup transmission protection on the generation plant. Graphical and text comprehensive reports of these studies are readily available.

PSS®CAPE Compliance Module offers the ability for quickly checking whether your Bulk Electric System (BES) has the minimum number of fault recorder equipment and disturbance monitoring devices per standard.

PSS®CAPE Compliance Module verifies that the following are properly coordinated: generating unit facility or synchronous condenser voltage regulating controls, limit functions, equipment capabilities and protection system settings. The protective devices modeled in PSS®CAPE for coordination validation include loss-of-excitation, voltage, Volts/Hz, and over-excitation protection. Auditable compliance reports can be generated automatically.

Once the data is prepared, use the PSS®CAPE Compliance Module for automatically performing transmission line loadability studies on Bulk Electric System (BES) lines. PSS®CAPE automatically identify the load-responsive protection of relevance. The user controls the study scenarios, as the Compliance Module provides summary reporting and detailed reporting at your fingertips.

The PSS®CAPE PRC-024 function simulates the performance of voltage, frequency and volts-per-hertz protective devices protecting generation units, transformer GSUs, high-side of UATs of the BES under voltage or frequency disturbance from the system. The performance is then compared to the boundary curves defined in the NERC PRC-024 standard to check whether the studied protection meets the standard. The protection studied may come from relay or control unit. Auditable compliance report data and auxiliary graphs are generated automatically.

This PSS®CAPE Compliance Module function automatically evaluates all load-responsive protections relevant to the standard, as well as the corresponding PRC-025-2 Option that applies. Regardless of the complexity of the generation plant topology, the compliance is determined by using the standard’s conservative calculation (Option A) and the special power flow solution (Option B), this latter computed with an in-house developed methodology that considers the special requirements of the standard. Summary reporting and detailed reporting of calculations steps are available.

PSS®CAPE evaluates impedance-based protection and overcurrent protection under stable power swing conditions to ensure that load-responsive protective relays will not trip in response to these stable power swings under no fault conditions. A unique power swing stability boundary is established for each impedance-based protective element in the Compliance Module based on the relay location and network parameters. Phase overcurrent relay pickup settings are compared with the maximum system current. Automatic batch study is enabled in the Compliance Module to reduce errors in the evaluation by decreasing manual intervention and human errors for repetitive tasks.

The PRC-027 application in the Compliance Module is a complete suite of tools that allows you to fashionbly and flexibly configure massive automated coordination studies of the part of the system you would like to evaluate for compliance. The amount of produced result may be staggering and thus difficult to manipulate. This is a challenge that the Compliance Module helps you in managing, as these results are stored in a separate SQL-based database. The PRC-027 coordination studies result database may be tapped by the Compliance Module to extract, summarize and consolidate multiple reports, produce from different perspectives: you may choose reporting coordination/miscoordination/coordination time interval violations, violating relays/elements, summarizing of performed study, etc. By tagging the dates of those studies, the Compliance Module allows you to easily track the status of your protection coordination compliance.

Request more information on the Compliance Module

Contact us

The Short Circuit Module calculates any type of fault on any size system. Supports standard and customized reporting, automated fault studies, fault location analysis, and user-defined fault conditions.  

The Coordination Graphics Module displays overcurrent and distance protective device characteristics. Supports interactive contingency and fault application, graphical relay resetting, and direct resetting of relay and distribution recloser taps and test points.  

The Line Constants Module computes the self positive-sequence impedance and the self and mutual zero-sequence impedances of overhead transmission lines based on conductor and tower data. for building and maintaining a system one-line diagram and display of data, short circuit results, and protection simulation responses. Direct access for opening breakers and applying faults. 

The Relay Setting Module represents a company’s relay setting procedures as user-written macros that perform fault studies, compute raw relay settings, and select actual taps. Library of "starter macros" includes setting digital distance relays in permissive overreach transfer trip schemes, plus many more.

The Relay Checking Module provides automated stepped-event simulation of your protection system in response to a variety of fault scenarios. This unique capability allows you to perform wide area evaluation of protection to uncover miscoordinations. Summary reports of one line per fault make it easy for you to spot trouble.

The System Simulator Module performs single-scenario studies interactively with the one-line diagram. 

The Order Production Module generates data-driven reports on paper of relay settings based on taps and test points for specific locations.

The Power Flow Module offers both Newton and Fast Decoupled solution methods. Control algorithms support tap and phase-shifting transformers, voltage control by reactive generation, switched capacitor bank operation, and area interchange control. 

The Short Circuit Reduction Module offers two types of network reduction; useful for providing reduced models for EMTP calculations, for other “non-PSS®CAPE” programs, and for sharing data with a utility's neighbors.

The Breaker Duty Module automates the evaluation of breaker interrupting duty following approved procedures of either the IEC or ANSI standards. Streamlines the evaluation of new and existing breakers. 

The Settings Transfer Utilities Module can export settings for any group of relays to one or more Neutral Interface files; settings can be taken to the field and safely viewed and modified by the test engineer, reviewed, annotated, and saved.

Select-Protection Package

A basic protection suite including short circuit analysis with Database, Database Editor, One-line Diagram, Short Circuit and Coordination Graphics.

The Short Circuit Module calculates any type of fault on any size system. Supports standard and customized reporting, automated fault studies, fault location analysis, and user-defined fault conditions.  

The Coordination Graphics Module displays overcurrent and distance protective device characteristics. Supports interactive contingency and fault application, graphical relay resetting, and direct resetting of relay and distribution recloser taps and test points.  

Select-Short Circuit Package

A basic short circuit analysis package for those engineers needing to perform short circuit analysis of their network including the Database, Database Editor, One-line Diagram and Short Circuit.

The Short Circuit Module calculates any type of fault on any size system. Supports standard and customized reporting, automated fault studies, fault location analysis, and user-defined fault conditions.  

Select-Line Constants Package

This suite allows engineers to perform line impedance and mutual coupling computation (Line Constants) using a schematic design with the PSS®CAPE Database, Database Editor and One-line diagram.

The Line Constants Module computes the self positive-sequence impedance and the self and mutual zero-sequence impedances of overhead transmission lines based on conductor and tower data. for building and maintaining a system one-line diagram and display of data, short circuit results, and protection simulation responses. Direct access for opening breakers and applying faults. 

Optional Modules

Add these modules to any package - PSS®CAPE optional modules allow for interoperability between PSS®CAPE and another software products. The PSS®CAPE-TS Link™ with connectivity to PSS®E and IPS-PSS®CAPE Bridge connecting the CAPE database to IPS Asset Management. 

This unique simulation tool integrates PSS®CAPE's protection data with the PSS®E time-domain transient stability program. It enables a reliable simulation of the bulk electric power system in a way that models the effect of protective relay operations on the dynamic behavior of the system. 

 

The PSS®CAPE-TS Link module allows the engineer to:

  • Combine PSS®E Transient Stability Capabilities with PSS®CAPE Highly Detailed Protection Model
  • Uncover threats to network stability caused or amplified by protection system
  • Simulate relay behavior (not assumed)
  • Study unbalanced conditions in transient stability environment
  • Assure adequacy of protection for credible contingencies and planned outages
  • Suggest setting changes for protective relays
  • Develop and simulate special protection schemes

The IPS-PSS®CAPE Bridge Module provides two-way data exchange between the IPS-RELEX protection system data management software and the PSS®CAPE protection system simulation environment. The Bridge manages the mapping of data common to both products in a way that preserves data integrity throughout.  Depending on the transfer the user requests, it can create new substations, LZOPs, relays, and relay settings in the destination database or simply update them if they already exist.

Ann Arbor, Michigan, Oct 5 - Oct 9

Save the new date: 2020 PSS®CAPE User Group Meeting

In consideration of the recent health and safety concerns around the COVID-19 and related travel restrictions, the PSS®CAPE User Group Meeting has been postponed to October 5-9, 2020 (originally planned for June 22-26, 2020).

 

Save the new dates to join the protection community for the annual 2020 U.S. based PSS®CAPE User Group Meeting & Conference in Ann Arbor, Michigan. The event begins with a protection engineering seminar on Monday, the PSS®CAPE User Group Meeting on Tuesday and Wednesday, and ends with two days of training on Thursday and Friday. This is a great chance to learn the latest about PSS®CAPE, expand your knowledge of system protection, and network with other users from around the world. Registration will reopen in July 2020. 

PSS®CAPE Releases

What's featured in PSS®CAPE 14

Take a look at the latest product developments and news.
Access release notes, engage with peers, and browse technical papers

Customer User Forum

Free Webinar: Master the challenges of Transmission Protection

Boost Reliability: Leveraging Proven Transmission Protection Simulation Solutions

Listen to the Siemens experts as they explore the functionalities of PSS®CAPE, an industry-leading software for highly detailed transmission protection simulation and analysis. Learn how to gain valuable insight into both the behavior of your grid and the protection systems to ensure safe and reliable operation.

Contact us

We are ready to answer your questions

When it comes to power grid protection - the stakes are high and there are multiple factors to consider. Contact us to learn how PSS®CAPE can help you address protection challenges of today and tomorrow. 

Request a free trial or more information on PSS®CAPE:

Contact us

Related topics