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24kV Maintenance-Free zero gas switchgear
  • 24kV Maintenance-Free zero gas switchgear
Key attributes
Brand ROCKWILL
Model NO. 24kV Maintenance-Free zero gas switchgear
Rated voltage 24kV
Rated normal current 1250A
Rated frequency 50/60Hz
Series PureInsul
Product descriptions from the supplier
Description

Description

The 24kV Maintenance-Free Gas-Insulated Switchgear is a cutting-edge medium-voltage power distribution device engineered for efficiency, reliability, and low operational overhead. Designed to meet the demands of modern urban grids, industrial facilities, and renewable energy projects, it combines advanced gas insulation technology with a maintenance-free architecture to eliminate routine upkeep—all while ensuring stable power transmission.

Featuring hermetically sealed stainless-steel enclosures filled with low-GWP (Global Warming Potential) insulating gas, the switchgear avoids gas leakage and degradation, eliminating the need for regular refills or component inspections. As a key unit in 24kV distribution networks, it delivers consistent performance in diverse environments, from high-humidity industrial zones to compact urban substations, making it a sustainable choice for long-term grid stability.

Feature

  • True Maintenance-Free Operation:Hermetic gas chambers (leak rate ≤ 0.05%/year) and wear-resistant mechanical components eliminate routine tasks like gas replenishment, part replacement, or cleaning. Reduces lifecycle operational costs by up to 70% compared to traditional switchgear.

  • 24kV-Level Reliability:Equipped with vacuum interrupters for efficient arc extinction and robust insulation, it withstands short circuits (up to 25kA/3s) and voltage fluctuations, ensuring a power supply reliability rate of ≥ 99.99%.

  • Eco-Friendly Gas Insulation:Uses low-GWP insulating gas (compliant with EU F-gas regulations) to minimize environmental impact. Fully sealed design prevents gas leakage, enhancing safety for personnel and surrounding ecosystems.

  • Compact & Flexible Installation:Modular design reduces footprint by 30% vs. air-insulated alternatives, fitting tight spaces like underground substations or industrial workshops. Supports quick on-site assembly for rapid deployment.

  • Smart Readiness:Compatible with intelligent monitoring systems to track real-time parameters (gas pressure, temperature, operational status) and trigger alerts for anomalies, enabling predictive grid management.

Product Parameters

Serial Number

Item

Unit

Parameter

1

Rated Voltage

kV

24

2

Rated Current

A

630/1250

3

Rated Frequency

Hz

50

4

1minPower Frequency Withstand Voltage

Phase-to-Phase and Ground

kV

65

Isolation Break

kV

79

5

Lightning Impulse Withstand Voltage

Phase-to-Phase and Ground

kV

125

Break

kV

145

6

Rated SF6 Gas Pressure

(Gauge Pressure at 20℃)

MPa

0.04

7

SF6Annual Leakage Rate

%

≤0.05

8

Protection Level

SF6Gas Chamber

IP67

Cabinet Body

IP4X

FAQ
Q: What are the environmental protection advantages of environmentally friendly cabinets compared with ordinary power distribution cabinets?
A:
Compared with ordinary power distribution cabinets, eco-friendly cabinets use pollution-free insulating media that do not release harmful substances or cause greenhouse effects. They avoid the environmental risks of SF6 leakage and waste gas treatment. Moreover, their compact design reduces material consumption, and most components are recyclable, aligning with low-carbon and environmental protection development trends.
Q: Is the insulation performance of environmentally friendly cabinets as reliable as that of SF6 cabinets?
A:
Yes, the insulation performance of qualified environmentally friendly cabinets is equally reliable. By using optimized eco-friendly insulating media (e.g., compressed dry air, N2/CO2 mixture) and advanced sealed cavity design, their insulation strength can reach or approach that of SF6 cabinets. They also have excellent anti-pollution and anti-humidity performance, which is verified by strict type tests in accordance with IEC and national standards.
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