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Cross Arm Insulators are used in electrical systems to provide insulation and mechanical support to the cross arm and conductor. They are typically used in low and medium-voltage applications and are one of the essential components of electrical systems. Cross Arm Insulators are designed to withstand weather conditions such as wind, snow, or rain and are made of materials like porcelain, glass, or composite.

YF POWER is a leading brand in the Cross Arm Insulator industry, with a focus on providing innovative solutions that meet the evolving needs of the electrical industry. YF POWER Cross Arm Insulators have a reputation for their superior quality and are known for their resistance to weather and chemical corrosion. These insulators are rigorously tested to ensure they can withstand a high voltage, ensuring optimal performance and safety.

YF POWER Cross Arm Insulators are suitable for a wide range of applications, including overhead power lines, transformers, and light poles. With their commitment to innovation and customer satisfaction, YF POWER Cross Arm Insulators deliver high performance and longevity, making them a reliable choice for electrical applications.

Types of Cross Arm Insulators

Advantages of Cross Arm Insulators

Cross arm insulators are essential components of electrical systems that provide insulation and support to the cross arm and conductor. The advantages of Cross Arm Insulators include:

1. Electrical insulation-Cross arm insulators provide effective electrical insulation to prevent current loss in the power line.

2. Mechanical strength-They provide mechanical support to the conductor and cross arm to withstand environmental and weather stresses like wind, rain, and snow.

3. Corrosion resistance-Cross arm insulators are made of materials that are resistant to corrosion from acid, salt, and other harmful elements.

4. Durability- They offer long-term performance and modern high-tech insulator materials like composite withstand failure due to moisture.

5. Low maintenance- Cross arm insulators require little to no maintenance and cleaning because their design is self-cleaning.

Cross arm insulators are suitable for various power system applications, and their durability and low maintenance nature make them attractive in various terrain conditions.

Working Principle of Cross Arm Insulators

The working principle of Cross arm insulators is based on their ability to provide insulation and mechanical support to the cross arm and conductor. These insulators prevent the transmission of electrical currents through the supporting structure.

Cross arm insulators have a cylindrical shape with one or more grooves designed to ensure optimal electrical insulation. They are typically made of materials like porcelain or composite, which have good electrical insulation properties.

During their operation, Cross arm insulators are mounted on a cross arm or structure and attached to a conductor wire. Their cylindrical shape provides mechanical support and prevents electrical currents from escaping.

These insulators areself-cleaning and are designed to be robust and durable to withstand extreme weather conditions. They have been tested to hold up to the harshest environmental stresses and remain reliable under extreme conditions.

Overall, Cross arm insulators provide reliable electrical insulation and mechanical support to overhead power lines, ensuring safe and efficient energy transmission. Their working principle ensures resilience in maintaining an effective energy transmission grid.

High voltage surge arresters, also called lightning arresters, are electrical devices designed to protect high voltage systems and equipment from voltage surges or transients caused by lightning strikes, switching operations, or other sources. They are typically installed in power transmission systems, substations, and industrial facilities, where high voltage is used.

YF POWER is one of the leading manufacturers and suppliers of high voltage surge arresters, offering a range of high-quality products designed to provide superior protection against electrical surges. YF POWER's high voltage surge arresters feature a robust construction and high energy absorption capabilities, suitable for extra high voltage power systems. The company's products are designed to meet international standards, ensuring the highest level of protection and performance. YF POWER's commitment to innovation and customer satisfaction has made the brand a trusted partner for customers worldwide.

Types of High Voltage Surge Arresters

36kV Surge Arrester

66kV Surge Arrester

110kV Surge Arrester

220kV Surge Arrester

330kV Surge Arrester

500kV Surge Arrester

1000kV Surge Arrester

Characteristics of High Voltage Surge Arresters

High voltage surge arresters exhibit several characteristics that distinguish them from other surge protection devices:

1. High Energy Absorption: High voltage surge arresters are designed to handle high energy surges and transient currents without causing damage to equipment.

2. High-Speed Response: High voltage surge arresters have a fast response time, providing immediate protection against high voltage surges.

3. Low Voltage Protection: High voltage surge arresters can also provide low voltage protection, making them suitable for electronic equipment, such as computers and televisions.

4. Environmental Stability: High voltage surge arresters are resistant to harsh environmental conditions, making them suitable for use in various industries, including wind power and oil and gas.

Overall, the characteristics of high-voltage surge arresters make them a reliable and effective option for surge protection in a variety of applications. Proper selection, installation, and maintenance of high-voltage surge arresters are essential for their optimal performance.

Electrical product moulds or power moulds are critical components in the production of high-quality electrical components and devices for power transmission and distribution systems. YF POWER is a leading brand that offers reliable electrical product moulds/power moulds designed to meet the specific requirements of electrical components and systems. These moulds are made of high-grade materials, including steel, aluminium, and copper alloy, and are manufactured with advanced production technologies such as CNC machining, EDM, and wire cutting. The use of these moulds ensures the optimal production of electrical components with precise dimensions, complex shapes, and high-repeatability rates.

YF POWER's electrical product moulds/power moulds are engineered to meet the highest quality standards, ensuring the longevity and reliability of the products manufactured using these moulds. These moulds are widely used in the power industry, including the production of insulators, bushings, and surge arresters, among others. YF POWER's electrical product moulds/power moulds provide efficient and cost-effective solutions for the production of high-quality electrical components, ensuring safe and reliable power transmission and distribution systems.

Types of Electrical Product Power Mould

Arrester Mould

10kV Arrester Mold (1-8)

36kV Arrestor Mold (1-6)

Insulator Mould

3kV Insulator Mold (R-1-8)

24kV Insulator Mold (R-1-6)

35kV Insulator Mold (R-1-6)

66kV Insulator Mold（1-2）

500 kV Insulator Mold

1000 kV Insulator Mold

Hollow Core Mould

110kv Hollow Core Mould

150kv Hollow Core Mould

Portable Variable Frequency Test System

Impulse Voltage Test System

AC Test Transformer System (Oil Insulated Type)

HV DC Generator Test System

AC Resonance Test System (Variable Inductance)

AC Test Transformer System (GAS Insulated Type)

Variable Frequency Resonance Test System(Gas Insulated Type)

Cable Accessory Mould

Cold Shrinkable Mould

Hot Shrinkage Mould

Cut-Out Insulator Mould

Benefits of Electric Product Mould/Power Mould

Precision and Consistency

Electric product molds are engineered with precise specifications, ensuring that each finished product meets consistent requirements. This reduces the possibility of defects and inconsistencies in the manufacturing process.

Longevity and Durability

Electric product molds are created using high-quality materials, ensuring a durable and long-lasting lifespan. As a result, this helps reduce costs for businesses in the long run through fewer replacements and more consistent outputs.

Customization

Power moulds can be customized to fit the specific needs of a product client, allowing for increased flexibility in manufacturing processes. Custom design renders improved performance, distinct shape, and innovation that helps products stand out from others in the market.

Cost-Effectiveness

Electric product moulds can be designed and produced at scale, reducing costs for businesses in the long run through options to use existing non-standard molds or to develop standard mold sizes, making them a cost-effective solution for businesses that produce high-volume parts. The cost-effectiveness in mould production allows manufacturers to make their products affordable while maintaining quality standards.

Working Principle of Electric Product Mould/Power Mould

Electric product moulds or power moulds are tools used to create a specific shape or design for an electrical product. The moulds are created with the customer's specifications in mind and are designed to accurately produce parts and components that meet precise requirements. The working principle of electric product moulds is straightforward. The mould is created with a cavity or a set of cavities that match the desired shape of the final product. Once the mould is in place, the liquid material is injected into the cavity, taking up the space occupied by the mould.

Once the material cools or solidifies, the mould is removed, leaving a finished part with the exact shape and design specified by the client. Using electric product moulds helps ensure that the quality and consistency of electrical products remain uniform in every production batch. Moreover, power moulds can now be designed and customized to provide automation, reduction in human errors, and a high level of precision in production processes.

Drop out fuse cutout switch refers to an electrical appliance that blows the melt and disconnects the circuit with the heat generated by itself when the current exceeds the specified value. The fuse is based on the current exceeding the specified value for a period of time, with its own generated heat to melt the melt, so that the circuit is disconnected; A current protector is made using this principle. Fuses are widely used in high and low-voltage distribution systems and control systems and electrical equipment, as a protector of short circuits and overcurrent, and are one of the most widely used protection devices.

ypes of Drop Out Fuse Cutout Switch

Cutout Switch

Cutout Switch ZW8-12/C

Cutout Switch ZW32-12

HV Disconnector

HV Disconnector GW5

HV Disconnector GW13

How to Select the Right Drop Out Fuse Cutout Switch

Select the type of fuse according to the line requirements and installation conditions. For a circuit with a small capacity, choose a semi-closed or unfilled closed type; for a larger short-circuit current, choose a filled closed type; for semiconductor component protection, choose a fast fuse.

Select the rated current of the fuse according to the load characteristics.

The selection of melts at all levels needs to cooperate with each other. The latter stage is smaller than the previous stage. The current on the main grid and each branch line is different, and the selection of fuses is also different.

Select the rated voltage of the fuse according to the line voltage.

The fuse current for AC asynchronous motor protection cannot be selected too small (2~2.5 times the rated current of the motor is recommended). If the selection is too small, it is easy to cause the fuse of one phase to blow, causing the motor to burn out due to lack of phase. It must be equipped with a thermal relay for overload protection.

Note: The fuse current includes two aspects, one is the rated current of the seat and frame where the fuse is installed, and the other is the rated current of the fuse. The two should not be confused. This is similar to a circuit breaker.

Drop Out Fuse Cutout Switch Working Principle

When the material and shape of the fuse are determined, its resistance R is relatively determined (if its resistance temperature coefficient is not considered). When current flows through it, it heats up, which increases over time. The size of the current and resistance determines the speed of heat generation, and the structure of the fuse and its installation condition determine the speed of heat dissipation; if the speed of heat generation is lower than the speed of heat dissipation, the fuse will not blow;

If When the speed of heat generation is equal to the speed of heat dissipation, it will not melt for a long time; if the speed of heat generation is greater than the speed of heat dissipation, then more and more heat will be generated, and because It has a certain specific heat and quality, and the increase of its heat is reflected in the increase of temperature. When the temperature rises above the melting point of the fuse, the fuse will blow. This is the working principle of the low fuse.

As one of the drop out fuse manufacturers, YF POWER is a leading brand in the electrical industry that offers high-quality and reliable electrical products. One of their most popular products is the Drop Out Fuse. This drop out fuse switch is designed to protect electrical circuits and equipment from overcurrents and short circuits by breaking the circuit when excessive current flows through it. The Drop Out Fuse Uit is widely used in power distribution systems, transformers, and other electrical infrastructure to ensure the safe and efficient operation of the system.

YF POWER's Drop Out Fuses are known for their superior quality, durability, and high performance. The drop out fuse units are engineered to withstand high temperatures, extreme weather conditions, and harsh environments. With YF POWER's Drop Out Fuse Switch, you can have peace of mind knowing that your electrical systems are protected from potential damages and downtime.

Types of Drop Out Fuse

How to Select Drop out Fuse?

Selecting the correct drop out fuse from drop out fuse suppliers is necessary to ensure efficient protection of your electrical systems. Here are some factors to consider while selecting a drop out fuse:

1. Voltage rating-Select a drop out fuse unit that matches the rated voltage of the electrical systems it must protect.

2. Current rating-The drop out fuse switch should have a current rating that is equal to or greater than the expected maximum current that will flow through the circuit.

3. Operating environment - Factors such as temperature, humidity, altitude, and the presence of corrosive substances in the area should be considered.

4. System coordination-The drop out fuse switch should be coordinated with other protective devices in the circuit to ensure the most efficient protection of your electrical systems.

5. Brand credibility-Choose a reliable brand like YF POWER that provides high-quality drop out fuses that are durable, efficient, and dependable.

By considering all these factors, you can choose a drop out fuse unit that offers effective protection to your electrical systems and ensures the maximum uptime of your electrical infrastructure.

Hollow core insulators are critical components in high-voltage power transmission systems, providing superior insulation and mechanical support under harsh environmental and electrical conditions. Hollow core insulators, produced by industry leaders like YF POWER, are designed to resist leakage current, mechanical stresses, and environmental staining, ensuring safe and long-lasting power transmission systems. These insulators feature a hollow central core, which reduces the amount of material required, making them lighter and easier to install. The hollow core insulators provide excellent mechanical strength, durability, and high resistance to electrical, mechanical, and thermal stress. YF POWER's hollow core insulators are made of high-quality materials, including glass, porcelain, or composite materials, depending on the voltage requirements and environmental conditions. Their insulators have been tested to meet international standards, ensuring optimal performance and reliability for high-voltage power transmission and distribution systems, even in extreme conditions. YF POWER's hollow core insulators provide superior insulation and mechanical support, ensuring the safety and reliability of power transmission systems.

Types of Composite Hollow Core Insulator

Application of Composite Hollow Core Insulators

Hollow core insulators find application in high-voltage power transmission and distribution systems, providing reliable insulation and mechanical support in harsh environmental and electrical conditions. These insulators are designed to withstand high voltage stresses, arcing, and contamination caused by the environment, ensuring safe and long-lasting power transmission systems. Hollow core insulators are used extensively in power transformers, bushings, switchyards, and high-voltage insulation structures, providing superior performance in areas where electrical insulation is critical.

They are used in both outdoor and indoor applications, serving as insulators for cable terminations, busbar supports, and potential transformers. Industry leaders such as YF POWER offer a broad range of hollow core insulators that meet the highest quality standards, ensuring optimal performance and reliability. Their insulators are made of high-quality materials such as ceramics or composites, carefully designed to meet specific voltage and environmental requirements. The application of hollow core insulators ensures the safety and reliability of power transmission and distribution systems under extreme power system conditions.

Innovations of Composite Hollow Core Insulators

Innovations in the design and materials used in hollow core insulators are playing a crucial role in enhancing the reliability, safety, and efficiency of power transmission and distribution systems. Manufacturers such as YF POWER are leading the way in developing innovative hollow core insulators that are designed to meet evolving industry standards and requirements. Some of the latest developments in hollow core insulators include the use of composite materials that combine the strength of glass fibers and the resistance of silicone rubber, providing superior insulation and flexibility for power transmission systems.

Other innovations include the application of advanced production techniques such as extrusion that allows for the creation of insulators with longer lengths, improved accuracy, and lower production costs. The use of innovative materials and designs ensures that hollow core insulators have improved mechanical and electrical properties, ensuring optimal performance and safety in power transmission and distribution systems. Innovations in hollow core insulators support the continued development of sustainable energy systems that are more reliable, safe, and efficient.

Arrestor Silicone Rubber is a type of silicone rubber designed to protect electrical systems from surges and lightning strikes. YF POWER, a leading manufacturer of electrical equipment, produces high-quality Arrestor Silicone Rubber that provides superior protection for power distribution and transmission lines.

The Arrestor Silicone Rubber is highly flexible and resistant to various environmental factors such as moisture, ultraviolet light, and a range of chemicals. This makes YF Power products highly suitable for outdoor applications or harsh weather conditions. The unique composition of the Silicone Rubber material effectively absorbs the energy of the electrical surge, redirecting it away from the system and preventing damage to the power grid.

YF POWER's Arrestor Silicone Rubber is also highly durable and low maintenance, making it an excellent choice for long-term protection of critical infrastructure. By incorporating the latest in material and manufacturing technology, YF POWER continues to lead the way in providing reliable and cost-effective solutions for electrical system protection.

Types of Arrester Silicone Rubber

Applications of Arrester Silicone Rubber in Electrical Systems

Arrester Silicone Rubber finds a wide range of applications in electrical systems. They are designed to protect power grids from high voltage levels caused by lightning strikes or other electrical surges. This makes them essential in ensuring an uninterrupted power supply and reducing the risk of system damage.

Arrester Silicone Rubber is used in a variety of applications, including transformers, transmission lines, distribution lines, and control systems. The application of arrester silicone rubber in transformers provides a significant advantage because it prevents damage due to lightning strikes, resulting in improved safety and reliability of the electrical system.

Advantages of Arrester Silicone Rubber

Arrester silicone rubber offers several advantages over traditional materials used in surge protection devices. Silicone rubber is a highly specialized material that offers excellent electrical insulation and thermal stability, making it well-suited for use in high-voltage environments. One major advantage of arrester silicone rubber is its ability to withstand extreme weather conditions, including heat, cold, and rain.

It resists degradation from UV light and ozone exposure, making it highly durable and reliable in outdoor applications. Another key advantage of using arrester silicone rubber is its superior electrical performance. It exhibits high dielectric strength and low leakage current, ensuring efficient and effective surge protection. Arrester silicone rubber is also highly resistant to abrasion, chemical attack, and mechanical stresses, providing long-lasting protection against surges and other electrical disturbances.

When the communication cable or equipment is operating under normal operating voltage, the 66kV surge arrester will not have an effect, and it is regarded as an open circuit for the ground. Once a high voltage occurs, and the insulation of the protected equipment is endangered, the arrester immediately acts to direct the high-voltage inrush current to the ground, thereby limiting the voltage amplitude and protecting the communication cable and equipment insulation. When the overvoltage disappears, the 66 kv lightning arrester quickly returns to its original state and makes the communication line work normally.

What is the lightning arrester rating for 66kV?

The lightning arrester rating for 66kV systems is essential to ensure effective protection against lightning-induced surges. At YF POWER, we offer a range of 66kV surge arresters specifically designed for this voltage level. Our 66kV lightning arresters are built to withstand high voltage surges and divert excessive electrical energy to the ground, safeguarding your equipment and ensuring the smooth operation of your electrical system. Discover more about our 66kV surge arrester solutions on our website to secure your substation from potential lightning damage.

In the design of protective means, engineers and technicians need to consider all aspects and Organically combine lightning-termination devices and lightning arresters to complement each other. The lightning protection design of substations or use of lightning arrester in substation is a common topic, and I don't think it is out of date to talk about it anytime. The reason why it is not outdated is that although the lightning protection design has been done all the time, and various related specifications are also emphasized, but in the actual operation of the substation, due to insufficient design or irregular construction (this article ends, not in-depth discussion) various lightning damage accidents occur from time to time, seriously affecting the safe and stable operation of power equipment and power grids, and also sounded the alarm to our engineering designers. How should this be designed? Only under the condition of not increasing equipment investment can we protect power equipment to the greatest extent and ensure the safety of power grid operation. This is an urgent problem that needs to be solved in front of our engineering designers.

The Principle Of Lightning Discharge And The Way Of Damage To Electrical Equipment

In the atmosphere, positively charged ice crystals and negatively charged water particles, due to their different densities, form an airflow that separates positively charged ice crystals from negatively charged water particles to form a part of Positively and partially negatively charged thunderclouds. Due to the continuous accumulation of opposite charges, the electric field strength between clouds of different polarities continues to increase. When the electric field strength somewhere exceeds the possible breakdown strength of the air, an inter-cloud discharge is formed. This kind of cloud-to-cloud discharge is called sheet lightning, which accounts for about 95% of lightning phenomena. Generally, it does not pose a threat to buildings on the ground. There is also a situation, usually, the negatively charged thunderclouds are in the lower part of the atmosphere, and the positively charged thunderclouds are in the upper part. Due to the electrostatic induction of negative electricity in thunderclouds, the nearby ground accumulates positive charges, thus forming a strong electric field between the ground and thunderclouds.

Like inter-cloud discharge, when the charge density accumulated in a certain place reaches a certain level, and the electric field strength here reaches the critical value of free air, conditions are created for the development of lightning strikes. The discharge between the cloud and the ground is called linear lightning, which accounts for about 5% of lightning phenomena, and it poses a strong threat to buildings on the ground. The reason why lightning is very destructive is mainly that it releases the energy stored in the thundercloud in just tens of microseconds, and the instantaneous power is extremely huge.