Latest Maintenance Technical Articles

Learn about fault levels and short-circuit protection for medium-voltage distribution. We’ll examine current sources,…

Learn about fault levels and short-circuit protection for medium-voltage distribution. We’ll examine current sources, fault types, symmetrical…

Overhead vs. underground power distribution: Learn the cost, reliability, and design trade-offs for medium voltage power…

Overhead vs. underground power distribution: Learn the cost, reliability, and design trade-offs for medium voltage power systems across urban,…

Protective devices, such as reclosers and sectionalizers, along with automation, can quickly detect, isolate, and restore…

Protective devices, such as reclosers and sectionalizers, along with automation, can quickly detect, isolate, and restore service after faults.

This article provides analysis steps and implementation strategies for distributed energy resource behavior,…

This article provides analysis steps and implementation strategies for distributed energy resource behavior, transportation electrification, and…

Explore distribution topologies, from simple radial feeders to complex networks, and examine reliability metrics, common…

Explore distribution topologies, from simple radial feeders to complex networks, and examine reliability metrics, common causes of outages, and…

Oscilloscope bandwidth can quietly change high-voltage transients and hide the real dv/dt stress, not just probe…

Oscilloscope bandwidth can quietly change high-voltage transients and hide the real dv/dt stress, not just probe capacitance or ground inductance.

Learn how substation commissioning verifies design intent and system integration through FAT, SAT, cold…

Learn how substation commissioning verifies design intent and system integration through FAT, SAT, cold (pre-energization), and hot…

Learn how smart substations can leverage IEC 61850 and CIM for data flow. Advanced analytics and machine learning (ML)…

Learn how smart substations can leverage IEC 61850 and CIM for data flow. Advanced analytics and machine learning (ML) can turn high-res data into…

Learn how smart substations use synchronized IoT devices compliant with key standards for high-fidelity data, enabling…

Learn how smart substations use synchronized IoT devices compliant with key standards for high-fidelity data, enabling real-time protection and…

In the final part of this series, we examine substation design practices for managing two critical issues: oil…

In the final part of this series, we examine substation design practices for managing two critical issues: oil containment and noise control.

In this new article series, we look at substation design and layout planning, starting here with early stage choices and…

In this new article series, we look at substation design and layout planning, starting here with early stage choices and physical layout.

Learn how modern substation integration merges protection and SCADA over digital networks and requires security and…

Learn how modern substation integration merges protection and SCADA over digital networks and requires security and human-centered HMIs for grid…

In substations, the DC system is critical for protection, control, and SCADA during AC loss. Learn about the relevant…

In substations, the DC system is critical for protection, control, and SCADA during AC loss. Learn about the relevant IEEE standards, choosing the…

Here, we provide an overview of common substation busbar configurations—Single Bus, Main and Transfer, Double…

Here, we provide an overview of common substation busbar configurations—Single Bus, Main and Transfer, Double Breaker/Double Bus, Ring Bus/Ring…

This article explains the role of substation isolators, covering their purpose in visible isolation and safe operating…

This article explains the role of substation isolators, covering their purpose in visible isolation and safe operating sequences with breakers and…

In the final part of this article series, we examine key field testing and online monitoring techniques for high-voltage…

In the final part of this article series, we examine key field testing and online monitoring techniques for high-voltage insulation systems.

Here, in Part 2, we examine insulation coordination and Basic Insulation Level (BIL) in high-voltage systems for…

Here, in Part 2, we examine insulation coordination and Basic Insulation Level (BIL) in high-voltage systems for reliability against transient…

In this article, we explore high-voltage insulation coordination, focusing on the nature of overvoltages, standardized…

In this article, we explore high-voltage insulation coordination, focusing on the nature of overvoltages, standardized impulse and withstand…

Learn how to optimize and design a reliable insulation framework for an HVDC network, focusing on aspects like insulation…

Learn how to optimize and design a reliable insulation framework for an HVDC network, focusing on aspects like insulation clearance, voltage surge…