Product Description
11kv Dropout Fuse Cutout DOFC Switch for Electric Transformer
The Drop-out Fuse Cutout and Load Switching Fuse Cutout represent advanced, high-voltage protective devices for outdoor use, designed to seamlessly integrate with the incoming feeder of distribution transformers or lines. Their primary function is to safeguard transformers and lines against short circuits and overloads while managing load current on/off switching. The dropout fuse cutout is meticulously crafted with insulated insulator supports, a robust fuse tube, and static and moving contacts. The innovative fuse tube features an inner arc-extinguishing tube surrounded by a durable phenolic compound paper or epoxy glass tube, while the load switching fuse cutout enhances performance with enforced elastic auxiliary contacts and a specialized arc-extinguishing enclosure for efficient current switching.
In normal operation, the fuse link secures the fuse tube in a closed position. Upon a fault in the system, the resulting fault current promptly melts the fuse, producing an electric arc. This occurrence heats the arc-extinguishing tube, releasing a significant volume of gas and creating a high-pressure flow along the tube. Once the fuse link melts, the moving contact loses its tension, causing the mechanism to lock and the fuse tube to drop, transitioning the cutout to an open position. For load switching, operators use an insulating bar to pull the moving contact, initially maintaining connection with the main and auxiliary static contacts. As pulling continues, the auxiliary contacts separate, forming an electric arc, which is extended within the arc-extinguishing enclosure gap. The arc-extinguishing process expels gas, effectively extinguishing the arc as the current approaches zero.
Compliance with Standard: IEC 60282-2: High-voltage Fuses - Part 2: Expulsion Fuses
Technical Specification
Main Technical Parameters
Type |
Rated voltage (kv) |
Rated
current
(A) |
Breaking
current
(A) |
Impulse
voltage
(BIL) |
Powerfrequency withstand voltage |
Leakage distance
(MM) |
| YNC4-12/100 |
11-15 |
300 |
8000 |
110 |
40 |
250 |
Main Product
Company Introduction
Established in 2007 in the heart of China's Electric Capital, Yueqing City, Yuanneng Power is a pioneering modern high-technology enterprise dedicated to power infrastructure services, including generation, transmission, and distribution systems. With a focus on innovation, Yuanneng seamlessly integrates production, development, sales, and service. Our extensive product range includes polymer insulators, fuse cutouts, surge arresters, disconnect switches, and complementary power fitting products, setting a standard in the industry.
To thrive in the evolving global market, Yuanneng Power aligns production with diverse regional standards such as IEC, ANSI, IEEE, and GB. Our products meet rigorous qualifications from esteemed institutions like Xi'an High Voltage Apparatus Research Institute Co., Ltd (XIHARI), National Insulator & Lightning Arrester Quality Supervision Inspection Center, and State Grid Electric Power Science Academy Quality Inspection Test Center, ensuring unmatched quality and reliability.
Leveraging the quick and efficient shipment capabilities of Ningbo and Shanghai Ports,
Yuanneng successfully distributes its products worldwide. Our impressive annual production capacity includes 500,000 polymer insulators, 500,000 lightning arresters, 350,000 dropout fuse cutouts, and 250,000 disconnect switches. This capacity underscores our competitive edge and steadfast support for clients across the globe.
Yuanneng Power remains steadfast in its commitment to the 'Human-oriented, Credibility-based' development philosophy. We earnestly anticipate the opportunity to collaborate with you, connecting electricity and uniting the world.
FAQ
Q: Are you manufacturer or a trade company?
We are a true professional manufacturer more than 15 years in China.
Q: Where is your factory?
Our factory address is Room 101, Building 2, No. 28, Binhainansan Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, China.
Q: Can I produce fuse cutouts according to my own requirements?
Surely, OEM & ODEM is welcome.
Q: May I get a fused cutout sample to check firstly?
Yes, the sample fee and courier fee need be paid by your esteem company, we will return cost back to you within your first order.
Q: How about sample time?
Normally, it can be ready in one week.
Q: What's your MOQ and delivery time?
For cutout, its MOQ should be 100pcs, delivery time is 25 days.
Q: Do you have type test report for ad drop out fuse cutout?
Yes, but consider test fee is very high, we make test on some models, welcome to contact to know details.
Q: What is your payment term?
Our payment term is T/T, L/C, if you have other idea, let us discuss.
Q: What is package for fuse cutout?
For porcelain and polymer fuse cutout, we will pack by carton+ pallet packing.
Q: What is standard of your cutouts?
IEC 60282-2, IEEE/ANSI C37.41, IEEE/ANSI C37.42
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