Offer no: 1451-261114 (Medium-voltage switchgear)

Medium-voltage switchgear with dry-air insulation OPTIMA-24e type MV switchgear
from company ELEKTROBUDOWA – Polish manufacturer of switchgear for the power sector, industry, and traction applications

PURPOSE
A modern solution for electrical power distribution in three-phase, 50 Hz AC systems, designed for operation at a rated voltage of up to 24 kV. OPTIMA-24e is an innovative gas-insulated switchgear that uses clean air as an eco-friendly insulating medium—a safe and sustainable alternative to SF₆. The solution is designed for reliable, modern, and environmentally friendly power distribution in primary networks up to 24 kV, with a rated short-circuit current of 25 kA, a busbar current of 2500 A, and a feeder current of 2000 A.

APPLICATION
in power distribution and industrial electrical networks,
in secondary power distribution,
in industrial plants and critical infrastructure facilities,
in unmanned and automated power substations,
in installations requiring high power supply reliability,
in modern energy systems with stringent environmental requirements.

GENERAL CHARACTERISTICS
OPTIMA-24e is a new generation of indoor medium-voltage (MV) switchgear manufactured by ELEKTROBUDOWA. It utilizes clean-air and vacuum technology for sustainable primary power distribution up to 24 kV, eliminating the use of SF₆ gas:

• a leading SF6-free solution based on clean-air technology, containing no fluorinated gases;
• high internal arc withstand capability of the enclosure, combined with an optional digital internal arc detection system, further enhances safety and limits damage in the highly unlikely event of an internal arc within the OPTIMA-24e switchgear;
• designed for remote control and monitoring;
• suitable for wall-mounted or free-standing installation;
• switchgear panels that meet all standard requirements for protection against the effects of internal arcing.
  
  

ADVANTAGES

• compact and modular design;
• reliability and functionality;
• safety ensured by mechanical and electrical interlocks, as well as an intuitive mimic diagram (synoptic panel);
• a system of mechanical interlocks helps prevent operator errors, providing an additional layer of safety at the site;
• future-proof: allows for quick, easy installation and seamless expansion of existing OPTIMA-24 series switchgear (which uses SF6 gas insulation);
• switchgear designed to accommodate an intelligent, autonomous system for monitoring operational parameters;
• enables maintenance and repair work within a specific panel without the need to de-energize the switchgear’s main busbars;
• easy installation and commissioning;
• convenient access to cables and equipment;
• long service life with minimal inspection and maintenance requirements;
• high-quality paint and electrolytic coatings on all enclosures. busbar system
  
  

TECHNICAL DATA

Switchgear type: OPTIMA 24e
Rated voltage:       24 kV
Rated power-frequency withstand voltage: up to 50/60 kV
Rated lightning impulse withstand voltage:    up to 125/145 kV
Rated continuous current: A  1250 A, 2000 A
Rated short-time withstand current: kA/s up to 25/3
Rated peak withstand current: kA up to 63
Resistance to internal arcing: kA/s    up to 25/1
Rated frequency: 50 Hz
Enclosure protection rating: IP 4X
Tank protection rating: IP 67
Mechanical impact protection rating: IK 10

PANEL DIMENSIONS:

width [A] – 600, 750⁽¹⁾, 900⁽²⁾ mm
⁽¹⁾ Panel width with busbar earthing switch
⁽²⁾ Width of a panel with a rated current Ir ≥ 1600 A

height [B] – 2450 mm
depth [C] – 1300 mm

IAC classification: AFLR
Loss of Service Continuity (LSC) category: LSC2B
Compliance with standards: PN-EN IEC 62271-200; PN-EN 62271-1, PN-EN 62271-102, PN-EN 60529