Image of a GIS Surge Arrester, a cylindrical device with a metal enclosure, featuring various high-tech components such as a zinc oxide valve piece, pressure equalizing cover, and electrical connectors, typically installed in high-voltage substations for protection against lightning and surges

GIS Tank Type Surge Arrestors


The Tank Type GIS Surge Arrester is a state-of-the-art protective device meticulously engineered to shield sulfur hexafluoride gas-insulated substation combined electrical equipment (GIS) from potential damages caused by lightning and operational over-voltages. This AC gapless, gas-insulated, metal-enclosed metal oxide arrester is a testament to our company’s commitment to quality and innovation, with over six years of impeccable operational track record.

In line with the evolving needs of GIS, our company has pioneered the development of large-capacity high-gradient metal oxide resistors to cater to the miniaturization trend in the market. The unique structural design ensures the resistor remains intact during bumpy transits or heavy vibrations, eliminating the risk of partial discharges due to loosening.

Key Components:

  1. Zinc Oxide Valve Piece: The primary component that facilitates surge protection.
  2. Pressure Equalizing Cover: Ensures uniform distribution of voltage across the arrester.
  3. Casing: A metal enclosure that houses the main components of the arrester.
  4. Monitor for Lightning Arrester: Facilitates regular checks and monitoring of the arrester’s performance.
  5. Basin Insulator: Ensures that the arrester remains insulated from the ground.
  6. Electrical Connector: Links the arrester to the electrical circuit of the enclosed device.

Operational Mechanism:
The zinc oxide valve, which is the heart of the arrester, is securely encased within a grounded metal housing. One end of this valve connects to the ground via the arrester’s monitor, while the opposite end forms an electrical connection with the circuitry of the enclosed appliance. For enhanced insulation and performance, the casing is filled with SF6 gas and maintained at a pressure ranging between 0.4 MPa to 0.50 MPa.


  • Durability: Withstands strong vibrations and transportation challenges without loosening the resistive piece.
  • Safety: Negates the risk of partial discharges, ensuring the uninterrupted functioning of the GIS.
  • Flexibility: Can be installed in various forms including dressing, paperback, or flip-chip, as per user requirements.

Recommendations for Users:
For optimal performance and longevity, users are urged to:

  1. Adhere to correct installation and testing standards.
  2. Schedule regular observations and monitoring to ensure the arrester’s efficiency.
  3. Refer to the arrester’s specification, crafted based on relevant standards and long-standing operational experiences, for best practices.

The Tank Type GIS Surge Arrester is a hallmark of technological advancement and reliability, promising unparalleled protection for your GIS equipment. Trust in its design and capabilities to ensure your systems’ safe and efficient operation.

Most Popular Questions.

LEEYD accommodates various payment methods to facilitate your purchasing process. We accept T/T, LC, PayPal, Western Union, Payoneer, Visa, and Master Card. Should you have further inquiries or need assistance regarding payment, please contact us at [email protected].

Yes, LEEYD is pleased to provide samples for most of our electrical products. The MOQ for our products, such as surge arresters, starts at 1 piece. For specific product MOQs and sample requests, please reach out to us directly at [email protected].

LEEYD ensures secure and efficient delivery of your orders by offering various shipping methods, including sea freight, air freight, land transportation, express delivery, and more. To discuss the most suitable shipping method for your order, please contact our team at [email protected].

Our commitment to quality is demonstrated through our adherence to international standards, validated by our numerous certifications, including ISO9001, ISO14001, OHSAS18001, KEMA, and CE. With our in-house manufacturing facilities and stringent quality control processes, LEEYD ensures each product aligns with our legacy of reliability and excellence.

LEEYD offers a diverse array of electrical products, including AC and DC Metal Oxide Ordinary Surge Arresters, Tank-type Surge Arresters, and a variety of power and energy solutions like current shunts, current transformers, and automation products, each designed and manufactured to meet the dynamic needs of the industrial power and energy sector.

Get in touch

Let's start talk with us.


No. 701, Tianyin Avenue, Jiangning District, Nanjing, China

Call us


Send us a message