JesGear™ 36kV – 40,5 kV is a medium-voltage metal-clad switchgear designed to ensure high operational safety, service continuity, and maximum reliability in critical industrial and infrastructure environments.
With a single model covering both 36 kV and 40.5 kV voltage levels, JesGear™ offers a flexible and optimized solution for electrical distribution systems, power plants, utilities, and large industrial installations.
Main features
The system integrates withdrawable vacuum circuit breakers (VCB) with insulated poles and a drawer configuration, offering a rating of up to 3150 A and a short-circuit current of 31.5 kA. It covers the main electrical ratings required by interconnection substations, large wind and solar power plants, primary substations, and strategic industrial infrastructures, in compliance with the latest grid requirements for 40.5 kV connections.
JesGear™ 36kV – 40,5kV’s modular and robust structure, combined with components selected from the world’s leading technology partners, ensures high performance, reliability, and ease of maintenance, making it ideal to support the growth of renewable energy and the integration of distributed generation, particularly in the wind and solar sectors.
Moreover, it offers high configuration flexibility, adapting to specific plant requirements and ensuring:
- High dielectric strength, with air insulation (no SF6 gas)
- Short-circuit withstand capability
- Long-term reliability
- Ease of maintenance
Reference standards
JesGear™ 36kV – 40,5 kV range complies with the following international standards:
- EC 62271-1 – general rule for high voltage devices
- IEC 62271-200 – metal-enclosed switchgear and controlgear for rated voltage above 1kV and up to and including 52kV
Electrical Features
| Rated voltage | kV | 36 – 40,5 |
| Rated power frequency withstand voltage | kV (1 min) | 80 |
| Rated lightning impulse withstand voltage (peak value) | kV | 185 |
| Secondary Circuit PFW Voltage | V | 2000 |
| Rated current | A | 1250 / 1600 / 2000 / 2500 / 3150* |
| Rated short time withstand current | kA (3s) | 25 / 31,5 |
| Rated peak withstand current (peak value) | kA | 63 / 80 |
| Internal Arc Class | kA (1s) | AFLR up to 31,5 |
| Mechanical endurance (Cycle) ESW | Cycle | 3000 |
| Ingress Protection Degree | / | External enclosure IP4X / internal compartments IP2X |
| Overall Dimensions (w*h*d) | 1200*2400*2500 |
Note: * Forced air cooling is required.