Architecture Plays a Key Role in NERC CIP Compliance

Architecture Plays a Key Role in NERC CIP Compliance
Architecture Plays a Key Role in NERC CIP Compliance Brian Smith bsmith@enernex.com 865-770-4853     If you have been involved with a utility's compliance efforts associated with the North American Electric Reliability Corporation (NERC) Critical Infrastructure Protection (CIP) standards, you understand that documentation is everywhere. Nearly every aspect of the NERC CIP standards starts with the requirement of documenting a proc...

Wind Plant Transient Evaluation Studies

Wind Plant Transient Evaluation Studies
Wind Plant Transient Evaluation Studies By: Tom Grebe, Principal Consultant tgrebe@enernex.com 865-770-4880     Power system apparatus, such as transformers, switchgear, and cables may be exposed to various types of transients. High-frequency transients and very steep overvoltages may cause problems for electrical equipment because they can cause local overstressing of the insulation system. Wind plant collector circuit breaker ...

Electric Power Systems Flicker Analysis

Electric Power Systems Flicker Analysis
Electric Power Systems Flicker Analysis By: Bikash Poudel, Senior Consultant bpoudel@enernex.com 865-218-4600 x6168     Electric power systems flicker is a human perception of change in brightness level of lighting. The intensity of flicker is dependent on both the frequency and the magnitude of voltage fluctuations. There had been studies that showed the variations of voltage as small as 0.3% in the frequencies around 8.8 Hz can ...

Breaker Switching Analysis for Wind Power Plants

Breaker Switching Analysis for Wind Power Plants
Breaker Switching Analysis for Wind Power Plants By: Bikash Poudel, Senior Consultant bpoudel@enernex.com 865-218-4600 x6168     Vacuum Circuit Breaker (VCB) switching for protection and control operations in electric power systems may cause high frequency transients overvoltage that can affect the transformers nearby. These transients exhibit phenomenon such as current chopping, pre-strike and re-strike. Studies done by EnerNex h...

Fault Induced Delayed Voltage Recovery (FIDVR) Phenomenon: Modeling and Guidelines

Fault Induced Delayed Voltage Recovery (FIDVR) Phenomenon: Modeling and Guidelines
Fault Induced Delayed Voltage Recovery (FIDVR) Phenomenon: Modeling and Guidelines By: Sarina Adhikari, Senior Consultant  sadhikari@enernex.com  865-218-4600 x6177     Broadly speaking, voltage sensitive loads are classified into two different categories: static or steady state, and dynamic loads. Accurate modeling of loads in the simulation environment that can closely mimic the behavior of the real-world load dynamics is a ...

Do Team Building Exercises Work?

Do Team Building Exercises Work?
Do Team Building Exercises Work? By: Ron Chebra, VP of Grid Modernization rchebra@enernex.com 865-218-4600 x8108     A few years ago, I had the opportunity to participate in an off-site team building exercise in Belgium.  Upon reflecting on the particular challenge presented, I made the link to the meaningfulness of that very activity and the workplace. First, let me describe the challenge. In short:  Find a tree that ...

Episode #6 | Cost Benefit Analysis – Science or Art?

Episode #6 | Cost Benefit Analysis – Science or Art?
The Energy Exchange Podcast Episode #6 | Cost Benefit Analysis – Science or Art? https://anchor.fm/enernex-energy-exchange/episodes/Episode-6--Cost-Benefit-Analysis--Science-or-Art-e2tm20 Take a listen as EnerNex Vice President of Grid Modernization Ron Chebra along with special guest Mark Everette, CEO of MWE Consulting, explore the nuances and challenges of building a solid and defensible Cost Benefit Analysis for grid modernization investments....

System Engineering Cyber Security Approaches for Distribution, Transmission and Generation Systems

System Engineering Cyber Security Approaches for Distribution, Transmission and Generation Systems
System Engineering Cyber Security Approaches for Distribution, Transmission and Generation Systems By: Kay Stefferud, Director of Implementation Services kay@enernex.com 865-218-4600 x8104     Like many other systems of systems (SoS), the electric grid is facing challenges as devices originally intended to be either standalone or locally networked are now being connected to both advanced management systems and to non-operational...

Live Line Clearance Evaluation Transient Study

Live Line Clearance Evaluation Transient Study
Live Line Clearance Evaluation Transient Study By: Tom Grebe, Principal Consultant tgrebe@enernex.com 865-770-4880     Power system apparatus, such as transformers, switchgear, and cables may be exposed to various types of transients. High-frequency transients and very steep overvoltages may cause problems for electrical equipment because they can cause local overstressing of the insulation system. Utility transmission line circ...

Proper Utilization of PMU Data: Towards Prevention of Wide Area Blackouts

Proper Utilization of PMU Data: Towards Prevention of Wide Area Blackouts
Proper Utilization of PMU Data: Towards Prevention of Wide Area Blackouts By: Sarina Adhikari, Senior Consultant sadhikari@enernex.com 865-218-4600 x6177     The North American Bulk Electric Systems (BES) comprises of Eastern and Western Interconnection and Electricity Reliability Council of Texas (ERCOT). These are the combination of several complicated rotating machines along with several pieces of equipment for ...
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