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110kV Substation Dead Tank SF6 Circuit Breaker

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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.: LW36-110 / HGD-110

Brand: HENGFENGYOU

Application: Power distribution

Phase: Three

Rated Voltage: 110kV

Rated current: 1250A / 2000A / 3150A

Frequency: 50Hz / 60Hz

Degree of protection: IP55 / C5M (Anti-corrosion)

Standard: IEC 62271-100 / IEC 60076

Certificate: CB CCC SABS

Shell Material: Steel

Origin: China

Packaging: Plywood

Delivery Time: 30 Days

Product Feature

Product description

Product Overview
The Dead Tank SF6 Circuit Breaker is a robust high-voltage switching solution designed for maximum stability and safety in demanding grid environments. Unlike live tank versions, the interrupter is housed in a grounded metal tank, allowing for lower center-of-gravity installations and integrated current transformers.
Key Features
Earthquake-prone Area Readiness: The low-profile, grounded tank design significantly lowers the center of gravity, providing industry-leading seismic resistance for regions prone to high geological activity.
Integrated CTs: High-precision current transformers can be directly integrated into the bushings, eliminating the need for separate CT support structures and reducing the overall substation footprint.
Enhanced Safety: The grounded (dead) tank design ensures that the external enclosure is safe to touch during operation, providing superior protection for maintenance personnel.
High Breaking Capacity: Engineered with high-performance SF6 interrupters to clear severe short-circuit faults with exceptional reliability.
Weatherproof & Durable: The fully enclosed structure protects critical components from environmental contaminants, moisture, and salt spray.
Technical Specification

Parameter	Specification
Rated Voltage	110kV (Up to 126kV)
Rated Current	1250A / 2000A / 3150A
Rated Breaking Current	31.5kA / 40kA
Mechanical Endurance	10,000 Operations (M2 Class)
Seismic Acceleration	0.3g - 0.5g (High Grade)

Application Environment
Seismic Zones: Specifically recommended for substations located in active fault lines or regions with strict earthquake-proofing regulations.
Compact Urban Substations: Utilizing integrated CTs allows for a more dense equipment layout where land cost is high.
Coastal and High-Pollution Areas: The sealed tank design provides superior protection against corrosion (C5M rating) compared to open-air components.
High-Reliability Industrial Grids: Ideal for mission-critical power supplies in chemical plants or semiconductor fabrication facilities.
Why Choose Us (HENGFENGYOU ELECTRIC)
Pre-Assembled Modular Delivery: Our Dead Tank units are largely pre-assembled and tested in our factory, allowing for a 30-day fast delivery and minimal site assembly time.
Integrated Engineering: We provide a "One-Stop" solution by managing the integration of CTs and protection relays, ensuring 100% compatibility before shipping.
Global Standard Certification: Our products are certified by CB, CCC, and SABS, meeting the stringent entry requirements of power utilities worldwide.
FAQ
1. Why is the Dead Tank breaker considered safer for maintenance?
Because the tank is grounded (electrically "dead"), there is no voltage on the enclosure. This reduces the risk of accidental flashovers and allows technicians to work in closer proximity to the equipment compared to Live Tank models.
2. How does the integrated CT feature save costs?
By building the current transformers into the breaker bushings, you eliminate the cost of separate CT units, separate foundations, and additional support steel, significantly lowering the Total Cost of Ownership (TCO).
3. What is the standard seismic rating for these units?
Our 110kV Dead Tank breakers are typically designed to withstand horizontal accelerations of 0.3g to 0.5g, making them suitable for the world's most active seismic zones.
4. Does the Dead Tank design require more SF6 gas?
Typically, yes, as the tank is larger; however, our Hermes-sealed technology ensures that the gas remains contained for the full service life, maintaining a low-maintenance profile.
5. Is this model suitable for replacing old oil breakers?
Yes, the Dead Tank design is an excellent "drop-in" replacement for aging bulk-oil breakers due to its similar footprint and superior performance.

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