How to Select Medium Voltage Switchgear?

February 13, 20260

In industrial facilities, energy continuity, safety, and system efficiency are largely shaped by medium voltage switching products. Medium voltage switchgear panels represent a critical interface between the grid and the facility infrastructure, as well as a long-term energy infrastructure investment.

Incorrect selections can lead to unplanned outages, high maintenance costs, and serious safety risks.

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Why Is Medium Voltage Switchgear Selection Critical?

Energy entering facilities at the medium voltage level is shaped by the decisions made at this stage. With a properly selected medium voltage switchgear system, energy continuity improves and operational safety is maximized. It also reduces maintenance and failure-related costs.

How Should Medium Voltage Switchgear Capacity Calculations Be Performed?

Every facility has a unique load profile. Therefore, a facility-specific technical analysis must be conducted when selecting medium voltage switchgear.

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Medium Voltage Switchgear Types | Gas-Insulated and Air-Insulated Switchgear

Medium voltage switchgear systems are essentially divided into two main technologies:

  1. Gas-Insulated Switchgear

Preferred in facilities with space constraints and in applications requiring high safety levels.

  • Compact design
  • High operational safety
  • Resistant to external environmental conditions
  • Low maintenance requirements
  1. Air-Insulated Switchgear

Provides economical and flexible solutions for facilities with larger installation areas.

  • Modular structure
  • Easy maintenance access
  • Lower initial investment cost
  • Flexible expansion capability
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Internal Components of Medium Voltage Switchgear and System Performance

In medium voltage switchgear systems, performance is influenced not only by the switchgear structure but also by the internal components used, which collectively impact the entire system. Critical components:

  • Circuit breakers
  • Disconnectors
  • Measurement and protection transformers
  • Earthing switches
  • Busbar systems
  • Protection relays

Incorrect selection of these components may lead to energy losses and increased failure risks. In our engineering approach, all components are optimized on a project-specific basis, with full consideration of overall system integrity.

Medium Voltage Switchgear Installation and Testing Processes

Correct product selection, along with proper installation and testing processes, is of critical importance. The key steps to consider in medium voltage switchgear projects include:

  • Verification of Factory Acceptance Tests (FAT)
  • Commissioning and supervision tests
  • Busbar insulation checks
  • Mechanical connection verifications
  • Compliance of the grounding system with applicable standards.

Vekmar by Your Side in Medium Voltage Switchgear Solutions

In medium voltage switchgear solutions, we are not only a product supplier but also a comprehensive solution partner covering site surveys, project design, correct product selection, commissioning, and after-sales technical support.

You can also quickly access the low-voltage components that complement medium voltage systems including circuit breakers, fuses, power factor correction, and metering equipment via the Vekmar B2B platform, with fast ordering and up to date stock information.

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Medium Voltage Switchgear Selection Is an Investment Decision

Medium voltage switchgear selection is a strategic decision that directly impacts your facility’s energy security, production continuity, and operational performance. With our strong engineering expertise, extensive product portfolio, and field experience, we help businesses prepare their energy infrastructure for the future.

To determine the most suitable medium voltage switchgear solution for your facility and obtain detailed technical information, you can contact the Vekmar expert team or explore our medium voltage brands here.

Where there is energy, a safe infrastructure is possible with Vekmar.

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