126kV Compact GIS for Indoor / Underground Substations

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L/C,T/T

Incoterm:

FOB,CFR,CIF

Min. Order:

1 Set/Sets

Delivery Time:

30 Days

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Product Description

Product Attributes
Product Feature
Product description

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Overview

Product Attributes

Model No.: cZF12-126 / HGIS-C126

Brand: HENGFENGYOU

Application: Power distribution

Phase: Three

Rated Voltage: 126kV

Rated current: 1250A / 2000A / 2500A

Frequency: 50Hz / 60Hz

Degree of protection: IP67 (Gas) / IP54 (Control Cabinet)

Standard: IEC 62271-203

Certificate: CB CCC SABS

Shell Material: Steel

Origin: China

Packaging: Plywood

Delivery Time: 30 Days

Product Feature

Product description

Product Overview
The Compact GIS is a specialized ultra-miniaturized solution engineered for high-density urban centers and underground substations. Designed to overcome extreme space constraints, this system allows high-voltage infrastructure to be installed in city center office building basements or deep underground vaults, ensuring a seamless power supply with Zero external impact on the surrounding environment.
Key Features
Extreme Space Optimization: Engineered with the smallest possible footprint in the 126kV class, enabling installation in confined spaces where traditional GIS cannot fit, effectively solving the "land scarcity" challenge in Tier-1 cities.
Underground Installation Ready: The structural design is optimized for the ventilation and access requirements of Underground installation, featuring a modular layout that fits through standard service elevators and access hatches.
Zero Environmental Impact: The fully enclosed, grounded aluminum alloy housing ensures zero external electromagnetic interference (EMI) and negligible noise, making it safe for operation directly beneath commercial or residential spaces.
Enhanced Safety for Public Areas: Utilizing a hermetically sealed SF6 insulation system, the equipment eliminates the risk of external flashovers or fire hazards, providing a secure power node for crowded Urban center solutions.
Anti-Corrosion & Moisture Proof: Specifically treated for the high-humidity conditions typical of underground environments, ensuring long-term reliability without the need for intensive environmental control.
Technical Specification

Parameter	Specification
Rated Voltage	126kV
Rated Current	1250A / 2000A / 2500A
Rated Breaking Current	31.5kA / 40kA
Annual Gas Leakage Rate	≤0.1%
Bay Width (Standard)	≤0.8m - 1.2m

Application Environment
City Center Skyscrapers: Installed in basement floors to provide high-voltage power directly to ultra-high-rise commercial complexes.
Underground Metro Substations: Compact enough to be integrated into subway station infrastructure where every square meter is critical.
Residential District Hubs: The low-noise, zero-interference profile allows for substations to be hidden within community buildings without disturbing residents.
Heritage & Scenic Areas: Ideal for historic districts where visible outdoor electrical infrastructure is prohibited and equipment must be concealed indoors.
Why Choose Us (HENGFENGYOU ELECTRIC)
Urban Integration Experts: We specialize in "invisible" power solutions, helping developers and utilities integrate high-voltage assets into the urban fabric with minimal visibility and maximum safety.
Customized Modular Dimensions: Our R&D team can customize the bay width and height configurations to fit specific room dimensions or existing civil structures in Retrofit optimization projects.
Precision Logistics: We provide specialized transport and lifting solutions designed for tight urban alleys and indoor delivery, ensuring your project is completed without disrupting city traffic.
FAQ
1. Can this GIS really be installed in an office building basement?
Yes. Due to the Zero environmental impact design, there is no electromagnetic radiation or significant noise. It is as safe as any other mechanical plant room and meets all international safety standards for indoor installation.
2. How does the "Compact" design affect maintenance access?
While the unit is smaller, our Modular Design ensures that all primary components and density gauges remain accessible from the front or rear aisles. Maintenance efficiency is maintained even in tight quarters.
3. Does the underground environment affect the gas leakage rate?
No. Our GIS maintains the strict quality standard of $\le$ 0.1% leakage per year regardless of depth. The aluminum alloy shell is also specially treated to resist the higher humidity levels often found in underground vaults.
4. Is special ventilation required for the SF6 gas?
Standard substation ventilation is sufficient. However, for underground applications, we recommend integrating our Intelligent Sensor system to monitor oxygen levels and SF6 density at the floor level for absolute safety.

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