Fully Sealed. Built for Extremes.

36kV solid insulated switchgear

36kV solid insulated switchgear is a fully solid-insulated, IP67-sealed medium voltage solution designed to deliver superior reliability, compact installation, and enhanced operator safety — even in the harshest operating conditions.

36kV solid insulated switchgear South Africa

Solving the Limitations of Traditional Air & Gas Insulated Systems

Traditional AIS and GIS systems face limitations in harsh environments — contamination, humidity, altitude, corrosion and maintenance complexity increase risk and lifecycle costs.

SOJO’s 36kV Solid Insulated Switchgear provides:

Fully epoxy and silicon rubber insulated live circuits
No exposed live parts in free air
IP67 sealed electrified body
Phase-segregated epoxy blocks to minimize arc faults
Compact footprint (700 × 2000 × 1150 mm — approximately 1/6 the size of traditional air insulated types like KYN61)

Upgrade to Safer, SF6-Free Medium Voltage Technology

Download the full 36kV Solid Insulated Switchgear brochure to access complete technical specifications, arc fault performance data, environmental test certifications, and modular configuration details.

KEY BENEFITS

Engineered for Safety, Reliability and Harsh Conditions

1. Maximum Operator Safety

Shielded conductive outer layer and fully sealed electrified body (IP67) eliminate exposed energized components.

2. Maximum Operator Safety

Each phase is independently encapsulated in epoxy, significantly lowering phase-to-phase discharge risk.

3. Maximum Operator Safety

Designed to operate in temperatures from -50°C to +70°C and at altitudes up to 5500m.

4. Maximum Operator Safety

Solid insulation eliminates the need for gas refilling and reduces maintenance interventions.

CORE TECHNICAL SNAPSHOT

Engineered for high-performance medium voltage applications, the 36kV Solid Insulated Switchgear delivers reliable electrical protection under extreme operating conditions.

Designed with shielded solid insulation and fully sealed live parts, the system achieves superior dielectric strength, arc fault containment, and environmental resistance — all within a compact modular footprint.

From high short-circuit withstand capability to extended mechanical endurance, every parameter reflects its suitability for demanding substations, industrial facilities, high-altitude installations, and harsh climates.

This technical overview highlights the key electrical, mechanical, and environmental performance ratings that define its long-term reliability and operational safety.

Upgrade to Safer, SF6-Free Medium Voltage Technology

Technical Overview

Parameter	Value
Rated Voltage	40.5 kV
Rated Current	1250 A
Rated Frequency	50 / 60 Hz
Rated Short Circuit Breaking Current	31.5 kA
Rated Peak Withstand Current	80 kA
Power Frequency Withstand (1 min)	118 kV
Lightning Impulse Withstand	215 kV
Protection Degree	IP67
Mechanical Endurance	10,000 operations (CB)
Operating Temperature	-50°C to +70°C
Altitude	≤ 5500 m

APPLICATIONS

Built for the Most Demanding Environments

High altitude substations

Engineered for elevations up to 5500m, the 36kV Solid Insulated Switchgear maintains insulation integrity and dielectric strength in low air-pressure environments where traditional air-insulated systems may underperform. Its fully sealed, solid-insulated design ensures consistent reliability and reduced risk of flashover in mountainous and high-plateau installations.

Coastal & high humidity environments

In coastal regions where salt-laden air and high moisture levels accelerate corrosion and insulation degradation, the fully encapsulated IP67 design protects live components from humidity and contamination. The solid insulation system eliminates exposure to saline air, significantly extending equipment lifespan in marine climates.

Corrosive industrial facilities

Industrial sites such as chemical plants, refineries, and processing facilities often expose electrical equipment to aggressive gases and pollutants. The sealed epoxy-insulated structure prevents corrosive elements from reaching energized components, ensuring operational stability and minimizing maintenance requirements.

Mining operations

Mining environments present extreme dust, vibration, and mechanical stress. The compact, shielded, and phase-segregated construction reduces arc fault risks while maintaining reliable switching performance under heavy-duty conditions. Its robust enclosure protects against particulate ingress and harsh underground or surface mining conditions.

Explosion-proof areas

In environments where explosive gases or dust may be present, reducing ignition risk is critical. The solid insulated, fully enclosed design eliminates exposed live parts and significantly lowers the probability of arc-related hazards, making it suitable for hazardous industrial zones requiring enhanced safety standards.

Heavy pollution zones

Areas with industrial smog, conductive dust, or environmental pollution can compromise traditional insulation systems. The IP67-rated sealed body prevents contamination build-up on energized parts, maintaining dielectric performance even in heavily polluted regions.

Cold climate installations

Designed for operation from -50°C to +70°C, the switchgear delivers reliable performance in extreme cold environments. The solid insulation technology ensures stable mechanical and electrical operation without performance degradation caused by freezing temperatures or condensation.