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110kV Outdoor High Voltage Earthing Switch

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L/C,T/T

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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.: JW-110 / HGE-110

Brand: HENGFENGYOU

Application: Power distribution

Phase: Three

Rated Voltage: 110kV

Rated current: N/A (Short-circuit Rating Focused)

Frequency: 50Hz

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 Earthing Switch is a vital safety device used in 110kV substations to ensure the grounding of de-energized circuits. It is specifically designed to protect maintenance personnel by providing a reliable path to earth and features an exceptional Short-circuit making capacity to handle accidental energization.
Key Features
Extreme Short-circuit Making Capacity: Engineered to withstand and safely close against full system short-circuit currents, ensuring the device remains intact even if operated accidentally on an energized line.
Advanced Safety Interlocking: Equipped with sophisticated mechanical and electrical interlocks that prevent the earthing switch from closing while the main circuit breaker or disconnecting switch is in the closed position.
Robust Mechanical Design: Built with high-strength galvanized steel and heavy-duty contacts to ensure reliable performance over a long service life in harsh outdoor environments.
Easy and Intuitive Operation: Features a simplified linkage system that allows for smooth Manual or Motorized operation, reducing the physical effort required by site operators.
Visible Grounding Status: The physical position of the earthing blade provides a clear, unmistakable visual confirmation that the equipment is safely connected to the earth grid.
Technical Specification

Parameter	Specification
Rated Voltage	110kV (Up to 126kV)
Rated Frequency	50Hz / 60Hz
Short-circuit Making Current (Peak)	80kA / 100kA
Short-time Withstand Current (4s)	31.5kA / 40kA
Mechanical Endurance	2,000 Operations

Application Environment
Substation Maintenance: Installed on both sides of circuit breakers or along busbars to provide a safe working zone for technicians.
Line Grounding: Used at the entry points of transmission lines to discharge residual capacitive charges before inspection.
High-Seismic Regions: The Robust design ensures structural integrity and functional reliability during and after seismic events.
Coastal and Industrial Areas: Utilizes hot-dip galvanized components and C5M class anti-corrosion treatments to resist salt spray and chemical pollutants.
Why Choose Us (HENGFENGYOU ELECTRIC)
Safety-First Engineering: Our designs prioritize the lives of operators, incorporating multi-level fail-safe mechanisms in every unit.
Modular Fast Delivery: By standardizing the 110kV earthing blade components, we maintain a highly efficient 30-day delivery schedule.
Global Expertise: With over 30 years in the industry, our earthing solutions are trusted by major utilities in over 50 countries to meet the most stringent safety codes.
FAQ
1. What is "Short-circuit making capacity" and why is it critical?
This is the ability of the switch to close onto a live fault without exploding or causing catastrophic failure. It acts as a final safety insurance for personnel if a circuit is energized by mistake.
2. Can the earthing switch be operated remotely?
Yes. While manual operation is standard, we provide motorized operating mechanisms that allow for full integration into substation automation systems (SCADA).
3. Does the earthing switch require frequent maintenance?
No. Due to its Robust design, maintenance is minimal, typically involving only the periodic lubrication of the main pivot points and inspection of the contact surfaces.
4. How does the interlocking system work?
It uses a combination of mechanical keys and electromagnetic locks to ensure the earthing switch cannot be closed unless the upstream disconnecting switch is fully open.
5. Is it possible to integrate the earthing switch with a disconnecting switch?
Yes, we offer combined units where the earthing blade is mounted directly on the base of the 110kV disconnecting switch, saving space and simplifying interlocking.

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