Overview

The 40.5 kV Hybrid Gas Insulated Switchgear (HGIS) combines advanced gas insulation with circuit breaker and switch capabilities, offering a compact, reliable solution for high-voltage applications. Ideal for substations and industrial environments. Contact us for pricing and customization.

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Product Feature

The 40.5 kV Hybrid Gas Insulated Switchgear (HGIS) is a highly efficient solution for electrical power distribution and control in medium voltage systems. This state-of-the-art equipment combines the advantages of gas-insulated switchgear (GIS) and air-insulated switchgear (AIS), offering exceptional reliability and compact design for environments with limited space.

The HGIS integrates circuit breakers, disconnectors, earthing switches, and transformers into a single unit, reducing the footprint and simplifying installation. With SF₆ gas as the main insulating medium, it provides high dielectric strength, minimizing the risk of electric arc formation, and ensuring efficient fault interruption in high-voltage networks.

This equipment is particularly suitable for applications in power substations, industrial plants, and renewable energy systems. Its modular design allows for flexibility in configuration, making it adaptable to various installation and operational requirements. Built to withstand challenging environmental conditions, it provides long-lasting, low-maintenance operation.

Applications include use in compact substations, power distribution systems, and locations with space constraints. Contact our expert team to discuss tailored solutions that optimize your installation’s reliability and performance.

Technical Parameters

40.5kV HGIS Technical Parameters
Model LW□-252/T4000-50 ZF39-126/T3150-40 HGIS-40.5/T2000-31.5
Rated Voltage 252kV 126kV 40.5kV
Installation Location Outdoor Outdoor Outdoor
Ambient Temperature -38°C to +40°C -38°C to +40°C -38°C to +40°C
Altitude Lowland model: ≤1000m, Highland model: ≤3000m Lowland model: ≤1000m, Highland model: ≤3000m Lowland model: ≤1000m, Highland model: ≤3000m
Air Pollution Level Level IV Level IV Level IV
Ice Coating Thickness ≤10mm ≤10mm ≤10mm
Seismic Intensity Horizontal acceleration: 0.4g, Vertical acceleration: 0.2g Horizontal acceleration: 0.4g, Vertical acceleration: 0.2g Horizontal acceleration: 0.4g, Vertical acceleration: 0.2g
Rated Frequency 50Hz 50Hz 50Hz
Rated Current 4000A 2000A / 2500A / 3150A 2000A
Rated Short-Time Withstand Current 50kA / 4s 40kA / 4s 31.5kA / 4s
Rated Power Frequency Withstand Voltage 460kV 230kV 80kV
Rated Switching Impulse Withstand Voltage 1050kV 650kV 215kV
Rated Lightning Impulse Withstand Voltage 1050kV 650kV 215kV
SF6 Gas Annual Leakage Rate ≤0.1% ≤0.1% ≤0.1%

FAQs

500kV oil-immersed transformers FAQs
When purchasing an oil-immersed transformer, you may want to know the following questions & answers.
Pre-Sales FAQs
Sales FAQs
After-Sales FAQs

QC & Guarantee

Market Orientation and Service Commitment

In response to fierce market competition and to meet customer demands, our company adheres to a market-oriented approach and a customer-centric philosophy. We have earned widespread recognition from our clients through efficient, comprehensive services and superior product quality.

Our Commitments

  1. Product Lifespan Guarantee: The operational lifespan of our transformers is no less than 30 years.
  2. Strict Quality Control:
    • Upon receiving bid documents, we promptly initiate the evaluation process to ensure all customer requirements are fully addressed.
    • We carefully select certified suppliers and strictly follow quality management standards to control and inspect raw materials and components.
    • We produce high-quality, customer-satisfactory parts in full compliance with contract and technical agreement requirements.
  3. After-Sales Service Commitment:
    • All performance indicators and technical specifications of our transformers meet or exceed national standards.
    • Within 3 years of installation and commissioning, if any oil leakage occurs due to manufacturing defects in oil-immersed transformers, we will repair it at no cost.
    • For any critical component defects identified during production or issues discovered during installation, we prioritize resolution to meet project timelines, followed by thorough responsibility analysis and necessary repairs or replacements.
    • We welcome customers to supervise the manufacturing process at our facility and will provide full support.

After-Sales Support

We offer comprehensive after-sales services, including free guidance for installation and commissioning. After the product is operational, if the customer requires support, our service team will respond promptly:

  • Arrival on-site within 24 hours for locations within 300 km.
  • Arrival on-site within 48 hours for locations beyond 300 km.

Additionally, we have established a robust regular follow-up system. We conduct periodic written or on-site visits to monitor the performance of in-service products, ensuring our customers have continuous peace of mind.

Ultimate Guide

Gas Insulated Switchgear (GIS) Ultimate Guide

Faster global delivery

lifespan > 30 years

Top10 Power equipment cop in CN
National-level technology center

Why Choose us ?

Built to last,
engineered to perform.

Taishan Transformer is a key national-level manufacturer specializing in transformers, recognized as a “Contract-Honoring and Promise-Keeping” enterprise, a high-tech enterprise, and a national-level enterprise technology center. It is recommended in the national directory for rural and urban power grid construction and renovation, as well as a recommended supplier of major electromechanical equipment for hydropower projects. Its products have been awarded the title of “National Quality Inspection Qualified Product – Quality Trustworthy Product” and “Nationally Recognized Product for Mechanical Industry Users.

Our Project

Our products not only dominate the domestic market but are also exported to more than 30 countries and regions, including Russia, Southeast Asia, Africa, and the Americas, serving industries such as power, municipal engineering, metallurgy, and petrochemicals.

Bangladesh
CRRC Corporation Limited
oil-immersed transformers
Australia
FSGT(HK) Limited
oil-immersed transformers
Vietnam
CMT Southern Metropolis
oil-immersed transformers
Zambia
ITEZHI TEZHI POWER
oil-immersed transformers
Poland
Electro- Alfa International SRL
oil-immersed transformers
russia
Irkutsk Power Grid Corp
oil-immersed transformers
Zimbabwe
Zimbabwe power company
oil-immersed transformers
Bolivia
SinoHydro Corporation
oil-immersed transformers

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