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0.75kV DC Gapless Metal Oxide Surge Arrester for Tramway Systems
Factory: We are a professional manufacturer providing OEM custom production services.
- Product Overview
- Technical Specifications
- Product Structure
- Applications
- Testing Capability
- Packaging & Customization
Product Overview
The WishPower 0.75kV DC Gapless Metal Oxide Surge Arrester utilizes advanced zinc oxide varistor technology to deliver fast response, low residual voltage, and long-term reliability for urban rail transit applications.
Advantages
High-performance DC zinc oxide varistor blocks
Gapless design for immediate response
Silicone rubber composite housing
Compact and lightweight construction
Excellent anti-pollution performance
Superior moisture and corrosion resistance
Long service life with low maintenance costs
Key Features
Designed specifically for 750V DC tramway systems
Gapless structure enables ultra-fast operation
Effective suppression of lightning overvoltages
High energy absorption capability
Low leakage current and power loss
Excellent UV and pollution resistance
Suitable for harsh outdoor environments
Reliable protection for modern rail transit systems
Product Structure
Main Components
Zinc Oxide (ZnO) Varistor Blocks
Fiberglass Reinforced Core Rod
Silicone Rubber Composite Housing
Upper and Lower Metal Fittings
Moisture-Proof Sealing System
Electric Field Grading Structure
Structural Features
Fully sealed construction
Gapless operating design
Weather-resistant housing
Anti-vibration configuration
Long-life composite insulation materials
Technical Specifications
| Parameter | Application Range |
|---|---|
| Product Name | 0.75kV DC Gapless Metal Oxide Surge Arrester |
| System Voltage | DC 750V |
| Arrester Type | Gapless DC Metal Oxide Arrester |
| Varistor Material | Zinc Oxide (ZnO) |
| Housing Material | Silicone Rubber |
| Installation | Indoor / Outdoor |
| Protection Degree | IP65 or Higher |
| Operating Temperature | -40°C to +70°C |
| Altitude | Up to 2000m (Customizable) |
| Insulation Performance | Railway Industry Standard |
| Service Life | More than 20 Years |
Product Structure
Main Applications
Industries
Urban Rail Transit
Tramway Systems
Public Transportation Infrastructure
Power Distribution Networks
Railway Equipment Manufacturing
Typical Applications
Tramway Traction Substations
750V DC Overhead Contact Systems
DC Switchgear Equipment
Power Cable Systems
Vehicle Power Collection Equipment
Light Rail Transit Networks
Testing Capability
WishPower conducts comprehensive testing and quality verification to ensure reliable performance under demanding operating conditions.
Test Items
DC Reference Voltage Test
Leakage Current Test
Residual Voltage Test
High Current Impulse Test
Long Duration Current Test
Thermal Stability Test
Artificial Pollution Test
Salt Spray Corrosion Test
UV Aging Test
Sealing Performance Test
Temperature Rise Test
Mechanical Load Test
多条件筛选（后台筛选属性）
Packaging & Transportation
To keep products safe during transportation and storage, we use the following packaging methods:
- Individual Packaging: Each product is wrapped with protective film, packed in a high-strength carton, and cushioned with buffer materials.
- Pallet Packaging: Multiple products are fixed on wooden pallets and wrapped with stretch film, suitable for container shipping.
- Export Packaging: Fumigated wooden cases, moisture-proof treatment, and detailed packing lists are provided according to sea freight requirements.
Customization Service
WishPower can provide the following customization options according to customer requirements:
- Structural Dimensions: Adjust overall height, creepage distance, shed quantity, and shed diameter.
- End Fittings: Customize ball-socket, tongue-clevis, eye, or other interface types according to connection requirements.
- Color: Standard gray, with red, yellow, blue, and other colors available subject to MOQ.
- Special Environments: Formulations for extreme cold (-60 C), strong UV exposure, heavy pollution, and other harsh conditions.
- Voltage Classes: Full-range customization from 10kV to 1000kV.
- Marking: Customer logos or model numbers can be molded or printed on the product.
For specific customization requirements, please contact our sales engineers. We will provide a technical solution within 24 hours.
FAQ
Q: How do I choose the right composite insulator for my project?
A: You can provide voltage level, installation type, mechanical load, creepage distance and operating environment. Our team will recommend the suitable model.
Q: What standards can your products meet?
A: Our products can be designed and tested according to IEC, ANSI, GB and customer-specific technical requirements.
Q: Can you supply complete products for transmission and distribution projects?
A: Yes. We can provide composite insulators, surge arresters, fuse cutouts, insulating bushings and related power insulation products.
Q: Are composite insulators suitable for coastal areas?
A: Yes. Composite insulators with silicone rubber housing provide good hydrophobicity and anti-pollution performance, making them suitable for coastal and polluted environments.
Q: What information should I provide for a quotation?
A: Please provide voltage level, product type, quantity, application environment, standard, drawings or technical specifications if available.
