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110kV Outdoor High Voltage Disconnecting Switch

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L/C,T/T

Incoterm:

FOB,CFR,CIF

Min. Order:

1 Set/Sets

Delivery Time:

30 Days

Transportation:

Ocean,Land,Air

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Product Description

Product Attributes
Product Feature
Product description

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Overview

Product Attributes

Model No.: GW4-110 / GW7-110

Brand: HENGFENGYOU

Application: Power distribution

Phase: Three

Rated Voltage: 110kV

Rated current: 1250A / 2000A / 3150A

Frequency: 50Hz / 60Hz

Degree of protection: IP55 (Mechanism Box) / C5M

Standard: IEC 62271-102

Certificate: CB CCC SABS

Shell Material: Steel

Origin: China

Packaging: Plywood

Delivery Time: 30 Days

Product Feature

Product description

Product Overview
The Disconnecting Switch (Isolator) is a fundamental safety component in 110kV substations, designed to provide a clearly visible isolation gap in the de-energized state. It is primarily used to isolate equipment or sections of the network for safe maintenance while ensuring stable electrical contact through its specialized self-cleaning design.
Key Features
Visible Isolation Gap: Provides a clear, physical disconnection point that is easily verifiable by maintenance personnel, ensuring maximum safety during substation operations.
Self-cleaning Contacts: The contact system is engineered to perform a wiping action during every opening and closing cycle, effectively removing oxide layers or environmental contaminants to ensure low contact resistance.
Dual Operation Modes: Supports both Manual and Motorized operation through a robust driving mechanism, providing flexibility for local control or integration into remote SCADA systems.
High Weather Resistance: Equipped with high-strength porcelain or composite insulators and hot-dip galvanized steel components to prevent corrosion in outdoor environments.
Reliable Interlocking: Features advanced mechanical and electrical interlocking capabilities to prevent misoperation, such as opening the switch under load conditions.
Technical Specification

Parameter	Specification
Rated Voltage	110kV (Up to 126kV)
Rated Current	1250A / 2000A / 3150A
Peak Withstand Current	80kA / 100kA
Mechanical Life	2,000 - 3,000 Operations
Operation Type	Motorized / Manual (Optional)

Application Environment
Substation Maintenance Isolation: Acts as the primary safety barrier for isolating circuit breakers, transformers, or busbar sections during repair work.
Network Reconfiguration: Used for switching between busbars or reconfiguring 110kV network loops in air-insulated substations (AIS).
High-Corrosion Areas: Designed for reliable performance in industrial zones or coastal regions where the Self-cleaning feature is critical for maintaining contact integrity.
Renewable Energy Hubs: Provides visible isolation for the high-voltage side of wind or solar farm step-up substations.
Why Choose Us (HENGFENGYOU ELECTRIC)
High-Precision Engineering: Our disconnecting switches are manufactured with optimized contact pressure and alignment to ensure zero-failure operation.
Modular Fast Delivery: We maintain a streamlined production process that guarantees a 30-day delivery cycle for standard 110kV configurations.
Proven Durability: With over 30 years of industry expertise, our products are deployed globally, meeting the highest standards for long-term mechanical and electrical stability.
FAQ
1. Why is a "Visible Isolation Gap" so important for substation safety?
Unlike circuit breakers where contacts are enclosed, the disconnecting switch allows operators to visually confirm that the circuit is physically separated. This is a mandatory safety requirement before any personnel can touch high-voltage equipment.
2. How does the "Self-cleaning" feature benefit long-term operation?
In outdoor environments, contacts can develop oxidation or accumulate dust. The self-cleaning mechanism scrapes these layers off during operation, ensuring a clean silver-to-silver contact and preventing overheating.
3. What happens if there is a power failure to the motorized mechanism?
Every motorized unit comes equipped with a manual override handle. This allows operators to safely open or close the switch manually in the event of a control power loss.
4. Can this switch be used to interrupt load current?
No. Disconnecting switches are off-load devices. They must only be operated after the associated circuit breaker has interrupted the load current to avoid hazardous arcing.
5. Does HENGFENGYOU provide grounding switches (earthing blades)?
Yes, our 110kV disconnecting switches can be supplied as single-break or double-break units with optional integrated earthing blades and mechanical interlocks.

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