Outdoor HV Isolating Switch

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Our R&D: Our R&D team consists of senior technical experts with decades of experience in the design and manufacture of high and low voltage electrical equipment. Their expertise, combined with our advanced facilities, enables us to always lead industry trends and continuously optimize our product portfolio.

Quality control: We are able to accurately and efficiently produce a wide range of high-quality electrical products that comply with GB 1984-2024 and GB/T11022-2020 standards to ensure the highest quality.

Customization requirements: We know that our customers' needs are different, so each product can be designed according to the specific needs of the customer.

Our services: In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

Advantages of Outdoor HV Isolating Switch

Simple structure

Stable performance, easy installation and maintenance.

Strong corrosion resistance

The overall steel parts are hot-dip galvanized and have strong corrosion resistance.

Safe and reliable

It adopts maintenance-free bearing seat and reliable interlocking and limit devices, which is safe and reliable. No phenomenon of excessive temperature of the outlet line after long-term use. The conductive switch transition link adopts a soft connection structure, and there is no phenomenon of excessive temperature of the outlet line after long-term use.

GW4-126 Outdoor High Voltage Isolating Switch

Specification of Outdoor HV Isolating Switch

No.	Name	Unit	Data
1	Rated Voltage	KV	126
2	Rated Frequency	Hz	50
3	Rated Current	A	630-2500
4	Rated Short-Circuit Breaking Current	KA	31.5 40 50
5	Rated Withstand Current (Peak)	KA	80/100/125
6	Rated Power Frequency Withstand Voltage	KV	230(Across the contact gaps) / 265(To Ground)
7	Rated horizontal pulling force of terminals	N	1000
8	Monopole weight	KG	250

Types of Outdoor HV Isolating Switch

Vertical isolation type:The vertical isolation type has components mounted in one vertical line. The breaking element is placed above the isolating segment. The vertical construction means that the isolator has a small footprint even when mounted on a tower or other structure.

Horizontal isolation type: For the horizontal isolation type, the components are arranged in a horizontal plane. The catch work or isolating rods are positioned on the side to afford this arrangement. The horizontal isolators are preferred in applications that do not have limited space as they occupy larger sections than vertical isolators.

Cross type: As the name suggests, cross-type isolators have three poles crossed for single phase applications. Their unique design compared to the standard vertical or horizontal types improves tower loading and wind resistance. Their small and compact size also makes them ideal for use in outdoor applications.

Line post type:These isolators are mounted directly on the power lines or posts and offer ease of accessibility and cost benefits. Their installation on the line means that they can be quickly and easily accessed for maintenance without the need for additional platforms or equipment. Despite being placed on the lines, they are still designed with a sturdy build to ensure protection in outdoor environments.

GW4-40.5 Outdoor High Voltage Isolating Switch

Structure of Outdoor HV Isolating Switch

GW4-126 Outdoor High Voltage Isolating Switch is double-column horizontal rotation. It includes 3 single poles, each pole is a double-column structure, mainly composed of a base and a support insulator. Each pole consists of 2 insulators, which are respectively installed on the bearing seats at both ends and connected by cross-links. It can rotate horizontally within a range of 90°.

The conductive part is divided into two halves, which are respectively fixed on the insulator pillars, and the contact is in the middle of the two porcelain pillars. When the mechanism is in motion, one of the pillar insulators rotates 90°, and the other insulating pillar also rotates 90° at the same time due to the connecting rod transmission, and the switch is opened and closed on the same side. In order to ensure the correct operation sequence between the disconnector and the grounding switch, reliable mechanical and electrical interlocking devices are installed on the product and mechanism.

Application of Outdoor HV Isolating Switch

Power stations

High voltage isolator switches help protect power-generating equipment like turbines and generators during maintenance by isolating electrical feeds. The isolators used here are able to withstand extreme temperatures and the corrosiveness of the industrial environment.

Substations

In substations, alternatively known as switching stations, isolator switches are used to disconnect any equipment from the power source for maintenance. These are often located near the end users of electrical power such as manufacturers.

Transmission lines

For transmission lines, isolators are mounted on insulators to enable section isolation. This helps operators troubleshoot problems without affecting service to other customers. Also, isolators provide a means to connect or disconnect the transmission line from the substation.

Industrial facilities

In large industrial facilities that have their own high voltage power systems, isolator switches are used to isolate electrical feeds. This is commonly found in plants like chemical manufacturing that require high voltage for their machinery.

Renewable energy systems

Isolators for high voltage in solar and wind energy reduce risk during maintenance. In wind turbines, the isolators can be easily accessed from the turbine nacelle. Solar farms are large open areas so the most commonly used isolators are the ones that require very little maintenance, such as composite materials.

Packing and Shipping of Outdoor HV Isolating Switch

Packing	Box
Shipping	Shipped by road, sea, rail

FAQ

Q: What is the primary purpose of an outdoor high-voltage isolator switch?

A: The main purpose of an outdoor high voltage isolator switch is to safely isolate sections for maintenance without the risk of electrical accident.

Q: Which materials are commonly used to construct outdoor high voltage isolators?

A: Stainless steel, aluminum, and composite materials are commonly used to construct outdoor high voltage isolators due to their durability against weather elements.

Q: What role do isolators play in renewable energy systems like solar and wind?

A: In renewable energy systems, isolators are used to disconnect the energy from the electrical system for maintenance and repairs.

Q: What does the protection rating of an isolator indicate?

A: The protection rating of an isolator indicates its ability to withstand environmental factors such as water, dust, and extreme temperatures.

Q: How does the lifespan of composite insulators compare to ceramic insulators?

A: Composite insulators are lighter but have a shorter lifespan than ceramic insulators, which are more durable and heavier.

We're professional outdoor hv isolating switch manufacturers and suppliers in China, specialized in providing high quality products and service. If you're going to buy customized outdoor hv isolating switch, welcome to get more information from our factory.

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