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Help CenterGW9-12/630A Outdoor Disconnector 12kV With Optional Silicone or Ceramic Insulators
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As a professional manufacturer of electrical equipment, Jinhua Dika Electrical Equipment Co., Ltd. is proud to present our GW9-12/630A Outdoor Disconnector. Engineered for reliability in demanding environments, this 12kV disconnector provides a safe and visible break point for isolation in medium-voltage power distribution networks. With over a decade of experience and a commitment to quality certified by ISO9001, we design our products to meet the rigorous demands of global markets, from North America to Southeast Asia. This disconnector is a robust solution for utilities, industrial plants, and infrastructure projects requiring dependable outdoor switching and isolation.
Core Design and Construction:
The GW9-12/630A is a center-break, double-side rotating type outdoor disconnector. Its primary function is to provide a reliable, visible air gap for isolating sections of a live circuit for maintenance or safety purposes. The robust mechanical structure ensures stable operation under various environmental stresses.
- Dual Insulator Options: We offer a choice between high-strength porcelain ceramic insulators and advanced polymer silicone rubber insulators. Ceramic insulators provide proven track record and excellent resistance to tracking. Silicone rubber insulators offer superior hydrophobicity, reducing leakage current in polluted or humid conditions, and are lighter weight, easing installation.
- High-Conductivity Contacts: The main and arcing contacts are made from high-conductivity, corrosion-resistant materials. The contact design ensures low contact resistance, minimal temperature rise during continuous operation at 630A, and reliable performance over thousands of mechanical operations.
- Corrosion-Resistant Structure: The base frame, operating rods, and other metallic parts are typically hot-dip galvanized or treated with advanced anti-corrosion coatings. This provides long-term protection against rust and degradation in coastal or industrial atmospheres.
- Manual Operation Mechanism: The standard model features a manual operating mechanism with clear “OPEN” and “CLOSED” position indicators. The mechanism is designed for smooth operation with manageable torque, often incorporating a latch to prevent accidental operation.
Technical Specifications and Performance Data:
The following table outlines key electrical and mechanical parameters of the GW9-12/630A Outdoor Disconnector.
| Parameter | Specification / Value |
|---|---|
| Rated Voltage (Ur) | 12 kV |
| Rated Normal Current (Ir) | 630 A |
| Rated Short-Time Withstand Current (Ik) | 20 kA / 3s (Typical, customizable) |
| Rated Peak Withstand Current (Ip) | 50 kA (Typical, customizable) |
| Power Frequency Withstand Voltage (Dry/Wet) | 42 kV / 30 kV (1 min) |
| Lightning Impulse Withstand Voltage | 75 kV |
| Minimum Creepage Distance | ≥ 310 mm (for ceramic, pollution level II) |
| Mechanical Life | ≥ 2000 operations |
| Ambient Temperature Range | -25°C to +40°C (wider range available) |
Advantages and Customer Benefits:
- Enhanced Safety: Provides a clear, visible air gap, a fundamental safety feature for personnel working on de-energized lines. The robust construction withstands short-circuit forces, maintaining isolation integrity.
- Operational Flexibility: The choice between silicone and ceramic insulators allows you to select the best option for your specific environmental conditions (e.g., coastal salt fog, industrial pollution, high humidity).
- Durability and Low Maintenance: Built with corrosion-resistant materials and high-quality insulators, the disconnector requires minimal maintenance over its long service life, reducing total cost of ownership.
- Easy Installation and Integration: Standardized mounting dimensions and clear instructions facilitate straightforward installation on poles or structures. It is compatible with common 12kV distribution system layouts.
- Reliable Performance: Consistent electrical performance, with low and stable contact resistance, ensures efficient power transmission and reduces energy losses at the connection point.
Trust and Global Reach:
Jinhua Dika Electrical Equipment Co., Ltd. operates under an ISO9001 certified quality management system, ensuring consistent product quality from raw material to final testing. With an annual export value ranging between US$1 Million and US$1.5 Million, our products have gained trust in diverse markets across North America, South America, Europe, Asia, Africa, and Oceania. Our flexible logistics, with major shipment ports in Shanghai, Tianjin, Guangzhou, and Ningbo, enable us to deliver reliably worldwide. The GW9-12/630A disconnector embodies our commitment to providing durable, safe, and adaptable solutions for the global power distribution industry. For detailed quotations, technical drawings, or to discuss custom requirements, please contact our sales team.
Frequently Asked Questions (FAQ):
-
Q: What is the main difference between the silicone and ceramic insulator options?
A: Ceramic insulators are traditional, offering high mechanical strength and proven performance. Silicone rubber insulators are lighter, provide better pollution performance due to hydrophobic surfaces, and offer higher resistance to vandalism. The choice depends on your local environment and specific project requirements. -
Q: Can this disconnector be motorized for remote operation?
A: The standard version is manually operated. However, a motorized operating mechanism is often available as an optional accessory or a customized version. Please inquire for motorization options. -
Q: What are the standard mounting arrangements?
A: The GW9-12/630A is typically designed for horizontal mounting on a crossarm or a vertical mounting on a structure. Detailed mounting drawings and dimensions are provided with the product documentation. -
Q: Is this disconnector suitable for load breaking?
A: No. This is a disconnector (isolator) designed to open or close a circuit only when negligible current is flowing or when the voltage across the contacts is insignificant. It is not designed to interrupt load current or fault current. -
Q: What is the typical delivery lead time?
A: For standard configurations, lead time is generally within 4-6 weeks after order confirmation. This can vary based on order quantity and specific customization requests. -
Q: What testing is performed before shipment?
A> Each disconnector undergoes routine tests including power frequency withstand voltage tests, measurement of main circuit resistance, visual checks, and mechanical operation tests. Type test reports for design verification can be provided upon request. -
Q: Can you provide accessories like auxiliary switches or padlocks?
A: Yes, auxiliary switches for remote position indication and padlocking devices for safety lockout (LOTO) are common accessories we can supply. Please specify your needs when ordering. -
Q: What is your payment term for international buyers?
A: We offer flexible payment terms, commonly T/T (Telegraphic Transfer) with a percentage as advance and the balance before shipment or against copy of shipping documents. Other terms like L/C can be discussed.
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