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Home > Electrical & Electronics > Power Supply & Distribution > Switchgear > 10kV XRNT High Speed Current Limiting Fuse for Transformer Protection

10kV XRNT High Speed Current Limiting Fuse for Transformer Protection

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Product Spotlights

The 10kV XRNT High Speed Current Limiting Fuse delivers ultra-fast fault interruption specifically for transformer protection. Its core advantage is limiting peak short-circuit current and energy, drastically reducing stress on transformers to extend lifespan and prevent costly damage. Featuring high breaking capacity, durable porcelain/epoxy housing options, and optional operation indicators, it ensures reliable system safety and minimal downtime. Manufactured to IEC/GB standards, it is a cost-effective safeguard for medium-voltage networks worldwide.

US$ 5 ≥100 Units

Key Specifications

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Rated Voltage:

10kV

Rated Current:

Customizable

Breaking Capacity:

High (Available upon request)

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Jinhua Dika Electrical Equipment Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Rated Voltage 10kV

Rated Current Customizable

Breaking Capacity High (Available upon request)

Operating Speed High Speed

Application Transformer Protection

Mounting Type Indoor/Outdoor (Optional)

Standard Compliance IEC 60282-1, GB/T 15166.1

Housing Material Porcelain/Epoxy Resin (Optional)

Indicator Type Optional

As a dedicated manufacturer of high-voltage protection equipment, Jinhua Dika Electrical Equipment Co., Ltd. leverages its expertise to present the 10kV XRNT High Speed Current Limiting Fuse. Engineered specifically for transformer protection, this fuse is a critical safeguard, designed to interrupt fault currents with exceptional speed and reliability, thereby shielding valuable transformers from catastrophic damage and minimizing system downtime.

Our fuse stands out for its precise current-limiting action, which drastically reduces the let-through energy during a fault. This not only protects the transformer but also mitigates thermal and mechanical stress on downstream equipment. With a commitment to quality underpinned by robust manufacturing processes, we deliver a component that is integral to the safety and stability of medium-voltage distribution networks worldwide.

Core Features & Technical Advantages:

Ultra-Fast Operation: The XRNT fuse is designed for rapid arc extinction, clearing faults within milliseconds to prevent the fault current from reaching its prospective peak. This high-speed limiting capability is paramount for protecting sensitive transformer windings.
Superior Current Limitation: It effectively limits the peak current and I²t let-through energy, significantly reducing the electrodynamic and thermal stresses imposed on the protected transformer and the entire circuit.
High Breaking Capacity: Engineered to reliably interrupt high-magnitude fault currents, ensuring system protection even under severe short-circuit conditions.
Durable Construction: Available with robust porcelain or high-strength epoxy resin housings, providing excellent mechanical strength, weather resistance (for outdoor types), and long-term operational stability.
Clear Indication (Optional): Models can be equipped with an indicating device (striker or indicator) to provide a clear, visual or mechanical signal upon operation, facilitating quick identification of a blown fuse for maintenance crews.
Design Versatility: Suitable for both indoor switchgear and outdoor pole-mounted transformer applications, offering flexibility in system design and retrofit projects.

Technical Specifications:

Parameter	Specification / Description
Rated Voltage (Un)	10 kV
Rated Current (In)	Wide range available (e.g., 6.3A, 10A, 16A, 20A, 25A, 31.5A, 40A, 50A, 63A, etc.)
Frequency	50/60 Hz
Breaking Capacity	High, meets or exceeds relevant standards
Operating Class	Back-up (Current-limiting) fuse according to IEC/GB standards
Housing Material	Porcelain or Epoxy Resin (Customer's choice)
Standards	IEC 60282-1, GB/T 15166.1, and other applicable national/international standards

Benefits for Your Operation:

Enhanced Transformer Lifespan: By preventing high fault currents, it directly contributes to extending the operational life of costly power transformers.
Improved System Reliability: Minimizes the extent and duration of power outages by isolating faults swiftly, leading to higher network availability.
Cost-Effective Protection: Acts as a sacrificial, economical component that prevents far more expensive equipment damage and replacement costs.
Simplified Coordination: Its predictable time-current characteristics allow for easier coordination with other protective devices in the system.
Global Compliance: Manufactured to align with international standards, facilitating its integration into projects across diverse markets.

Trust in a product backed by the manufacturing rigor of Jinhua Dika. With an annual export value reflecting significant global reach across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Mid East, Eastern Asia, and Western Europe, our products are proven in diverse electrical environments. Our operational foundation is strengthened by a commitment to systematic quality management. This 10kV XRNT fuse embodies our focus on delivering reliable, high-performance protection solutions. Protect your critical assets and ensure network integrity. Contact us today to discuss your specific requirements, request detailed technical data, or to place an order. We are ready to support your projects from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo.

Frequently Asked Questions (FAQ):

Q: What is the primary function of this 10kV XRNT fuse?
A: Its primary function is to provide high-speed, current-limiting protection for 10kV power transformers. It rapidly interrupts short-circuit faults, limiting the energy let-through to prevent damage to the transformer windings and associated equipment.
Q: How does "high-speed" operation benefit my system compared to a standard fuse?
A: High-speed operation means the fuse clears the fault before the short-circuit current reaches its full prospective peak. This drastic reduction in peak current and thermal energy (I²t) significantly lowers the mechanical and thermal stress on the transformer, offering a much higher level of protection.
Q: Can this fuse be used for both indoor and outdoor applications?
A: Yes, depending on the housing material selected. Porcelain housings are typically suited for outdoor use due to their weather resistance, while epoxy resin housings are often used indoors. Please specify your application environment when inquiring.
Q: What rated current options are available?
A: We offer a wide range of standard rated currents to match various transformer sizes and protection requirements. Common ratings include 6.3A, 10A, 16A, 20A, 25A, 31.5A, 40A, 50A, and 63A. Custom ratings may also be available upon request.
Q: Does the fuse provide any indication that it has operated?
A: Yes, this is an optional feature. Many models can be supplied with a mechanical striker pin or a visual indicator that activates when the fuse element melts, providing clear local indication for maintenance personnel.
Q: What standards does this product comply with?
A: The fuse is designed and tested in accordance with international standards such as IEC 60282-1 and the Chinese national standard GB/T 15166.1 for high-voltage fuses. It meets the requirements for back-up (current-limiting) fuses.
Q: How do I select the correct fuse rating for my transformer?
A: Selection depends on the transformer's rated voltage, rated current, and the required protection characteristics (e.g., overload, short-circuit). It is recommended to consult with our technical team or provide your transformer specifications so we can assist you in choosing the appropriate fuse rating and characteristic curve.
Q: What is the typical delivery lead time?
A: Lead times vary based on order quantity and specific configuration (rating, housing, indicator). Standard items typically have shorter lead times. Please contact us with your detailed needs for an accurate delivery schedule.