300kN insulators U300B Suspension Electrical Glass Insulator

Main dimensional parameters of U300B glass insulator: Nominal diameter (D): 320mm Structural height (H): 195mm (standard U300B/195) Nominal creepage distance: 485mm Connection mark: 24 (corresponding to foot/cap size of 22/28mm) Rated mechanical failure load: 300kN Single piece weight of insulator: 9.7-10.6kg (depending on specific manufacturer) Standard model: U300B/195, corresponding to domestic models XP-300 or LXP-300

Structural composition:

The product consists of an iron cap, tempered glass parts, and steel feet, and is integrated with cement adhesive. This product adopts the most advanced cylindrical head structure internationally, characterized by small head size, light weight, high strength, and large creepage distance. Can save metal materials and reduce line costs. To meet the needs of live working, traditional domestic structural shapes are used on the brim of the hat.

Main types of glass insulator：

Glass insulator is including standard type, pollution resistant type, DC type, spherical type, aerodynamic type, ground wire type, and contact network for electrified railways Jiangxi Huayao electric Co.,ltd produce standard type glass insulator 40-550Kn, Pollution resistant type 70-400Kn, mutil-umbrella type 120-330kN, Glass insulator aerodynamic type 120-300kN, ground wire type glass insulator.

Following is standard type glass insulator 40-550Kn:

Product Details： Place of Origin: China Brand name:HUAYAO Certification:ISO9001 300kN standard disc suspension glass insulator U300BL Daily output:10000 pieces 6 pieces in wooden case, then put in pallet. Payment & Shipping： Minimum Order Quantity: 10 pieces Packaging Details:normal export packaging Supply Ability:50000pcs Delivery Port:Ningbo,Shanghai Payment term:TT, L/C, FCA

Quick detail：

Glass Standard Profile Suspension Insulators LXP-300 / U300B Mechanical Values Mechanical Failing Load: 300kN Tension Proof: 150kN Electrical Values Dry Power-frequency Withstand Voltage: 85kV Wet Power-frequency Withstand Voltage: 50kV Dry Lightning Impulse Withstand Voltage: 130kV Puncture Withstand Voltage: 130kV Radio Influence Voltage Data Test Voltage RMS to Ground: 10kV Maximum RIV at 1000 kHz: 50μV Packing and Shipping Data Net Weight, Approximate: 9.5kg

The reason why glass insulator those years?

Applicable scenarios:

High voltage/ultra-high voltage transmission lines: widely used in 220kV~500kV transmission lines, especially suitable for important lines of 500kV and above

Substation: Used to support busbars and jumpers, especially suitable for heavily polluted industrial substations

Large span lines: Due to their high mechanical strength, they are suitable for large-span installation in rivers, canyons, and other areas

Special environmental areas:

Polluted areas (such as industrial zones, coastal areas)

High altitude areas (with obvious advantages in mechanical strength)

Repetitive ice area (capable of withstanding greater loads)

Typhoon prone area (optional aerodynamic type)

The Production process flow:

The production process of glass insulators in Jiangxi Huayao Electric Co.,Ltd is as follows:

Mix raw material=>melt glass liquid=>press to glass insulator shape=> tempering treatment=>cold and shock test=> Glue assembly=> routine test and other test=> Finished products package.

Production process flow

The production process of glass insulators in the company is as follows:

Ingredients: Ingredients refer to the uniform mixing of different raw materials according to a certain ratio. Currently, a forced vertical mixer is generally used for ingredient preparation. The key to ingredients is the uniformity of mixing different raw materials.

Melting: Melting refers to the process of heating ingredients at high temperatures to form a uniform glass liquid, while clarification refers to the exhaust treatment of the liquid formed by melting raw materials.

Pressing: After melting and clarification, the glass liquid enters the pressing process through the feeding system, that is, the glass is hydraulically made into glass insulation parts, usually achieved through a fully automatic hydraulic forming machine. The pressing shape is controlled by the glass mold, and the amount of glass liquid used to press one insulator is also controlled to ensure the consistency of the insulator product.

Tempering: Subsequently, the glass piece is subjected to tempering treatment, which means controlled cooling of the glass piece to obtain permanent surface prestress. The equipment involved in the tempering process includes temperature equalization furnaces, tempering machines, etc.

Cold and hot shock: Tempered glass pieces undergo cold and hot shock tests, using a special nickel sulfide treatment furnace and a special nickel sulfide elimination process to homogenize the glass pieces. The quality of the nickel sulfide removal process directly affects the important indicator of the glass insulator after operation - the self explosion rate.

Glue assembly: Use an assembly machine with steel foot positioning assistance to assemble and glue the insulator insulation parts, steel feet, and steel caps. This step requires attention to ensuring the coaxiality of the steel feet, insulation parts, and steel caps. Poor coaxiality can also lead to high self explosion rates. Inspection: Conduct a 50% tensile load test on the glass insulators that have been glued together, check the height of the insulator structure, etc., to ensure that the insulators meet the standard requirements.

Test report of Jiangxi huayao eletric Co.,ltd glass insulator
Jiangxi Huayao electric Co.,ltd provide test report from third party such as Xi'an High Voltage Apparatus Research Institute Co., Ltd. (XIHARI) ,National ceramic product quality inspection and test center.
Pre-shipment inspection from third party such as INTERTEK, SGS, BV or customer themselves.

Standard of glass insulator:

5. 7.Power frequency puncture withstand test

The results of power frequency puncture withstand test please check the following table, no puncture.

Jiangxi Huayao electric Co.,ltd participate in power exhibitions in Algeria, Vietnam, and Thailand...

 
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