High Voltage Porcelain Electrical Insulator 57-3
Performance Advantages of Post Porcelain Insulators
Post porcelain insulators offer exceptional performance advantages in various applications, particularly in high-voltage transmission and distribution lines. Let's delve into their key benefits:
Good Mechanical Performance
- Able to withstand large axial and lateral loads.
- Ensures stability and prevents displacement or damage to electrical components like wires in harsh weather conditions such as strong winds, ice, and snow.
Excellent Electrical Insulation Performance
- High insulation resistance and breakdown voltage.
- Effectively prevents leakage and flashover phenomena, ensuring safe power system operation.
Strong Weather Resistance
- Manufactured from ceramic materials known for their robust weather resistance.
- Can operate stably for extended periods under various climatic conditions (high temperature, low temperature, humidity, etc.).
Types of Post Porcelain Insulators
Explore the main types of post porcelain insulators based on ANSI class and type number:
| Type No. | Creepage Distance (mm) | Dry Arcing Distance (mm) | Cantilever Strength (kN) | Flashover Voltage Dry (kV) | Flashover Voltage Wet (kV) | Critical Impulse Flashover Voltage Positive (kV) | Critical Impulse Flashover Voltage Negative (kV) | RIV Data to Ground (kV) | RIV Max (kV) |
|---|---|---|---|---|---|---|---|---|---|
| 57-1 S/L | 356 | 165 | 125 | 80 | 60 | 130 | 155 | 15 | 100 |
| 57-2 S/L | 559 | 241 | 125 | 110 | 85 | 180 | 205 | 22 | 100 |
| 57-3 S/L | 737 | 311 | 125 | 125 | 100 | 210 | 260 | 30 | 200 |
| 57-4 S/L | 1015 | 368 | 125 | 150 | 125 | 255 | 340 | 44 | 200 |
| 57-5 S/L | 1145 | 438 | 125 | 175 | 150 | 290 | 380 | 44 | 200 |
Product and Brand Details
Product Name: Porcelain Insulator
- Model Number: 57-3
- Material: Porcelain
- Application: High voltage
- Rated Voltage: 12kV/33kV
- Brand Name: Huayao
- Usage: Transmission lines
- Place of Origin: Jiangxi, China
- Standard: IEC60383
- Color: Brown/white
Product Specifications
- Place of Origin: China
- Brand Name: HUAYAO
- Certification: ISO9001
- Daily Output: 10,000 pieces
- Minimum Order Quantity: 10 pieces
- Packaging Details: Normal export packaging
- Supply Ability: 50,000 pcs
- Delivery Port: Ningbo, Shanghai
- Payment Terms: TT, L/C, FCA
Product Details: 57-3 Porcelain Post Type Insulator
- Porcelain Standard Profile: Post Insulator 57-3
- Dimensions: Diameter (D) - 165 mm, Spacing (H) - 381 mm, Creepage Distance - 737 mm
- Mechanical Values: Cantilever Strength - 125 kN
- Electrical Values: Dry flashover Voltage - 125 kV, Wet flashover Voltage - 100 kV
- Critical Impulse Flashover Voltage Positive - 210 kV, Negative - 260 kV
- Radio Influence Voltage Data: Test Voltage RMS to Ground - 30 kV, Maximum RIV at 1000 kHz - 200 µV
Production Process
The production process of porcelain insulators at Jiangxi Huayao Electric Co., Ltd involves the following steps:
- Mix raw material
- Make blank shape
- Drying
- Glazing
- Put into kiln
- Glue assembly
- Routine test and other test
- Finished products package
Workshop and Customer Visits
Jiangxi Huayao Electric Co., Ltd welcomes customer visits to explore their workshop and the production process of their reliable and high-performing porcelain insulators.
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