11KV Vacuum Interrupter For Recloser

Model: TD336R

The Sunway Hanguang 11KV Vacuum Interrupter for Reclosers (core model VITD 12/1600-31.5R) is a core arc-extinguishing unit specifically designed for medium-voltage automatic reclosers. It is compatible with 50/60Hz systems and features a vacuum level of ≤1.33×10⁻³Pa, enabling arc-free switching. As a professional manufacturer with over fifty years of experience in the electrical industry, the company leverages advanced equipment and core patents to create products that meet multiple standards. With over 300,000 units installed globally, it has gained recognition from well-known domestic and international companies. The 11KV Vacuum Interrupter for Reclosers, with its stable performance, is suitable for various extreme operating conditions.

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Product Description

The 11KV Vacuum Interrupter for Reclosers is a core arc-extinguishing unit customized by Sunway Hanguang for medium-voltage automatic reclosers. The core model is VITD 12/1600-31.5R, compatible with globally used AC systems, providing arc-free switching and zero re-ignition, precisely addressing the stringent requirements of high-frequency operation in reclosers.

As a professional supplier from China, the company utilizes automated production lines built with equipment imported from Germany and Japan, holding over 50 patents. The products have passed multiple international and domestic certifications and tests. Our factory is located in Xiaogan, Hubei, efficiently meeting both mass production and customized needs. The 11KV Vacuum Interrupter for Reclosers has accumulated over 300,000 units installed globally and is recognized by companies such as State Grid and ABB.

Product Specifications

ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS
Model NO.	VITD 12/1600-31.5R
Rated Frequency	50/60Hz
Rated Maximum Line to Line Voltage	12kV,r.m.s
Rated Power Frequency Withstand Voltage:Air	42kV,r.m.s
Rated Impulse Withstand Voltage:Air	95kV,Peak
Rated Normal Current	1600A
Rated Short-Circuit Current(3Phase Symmetrical Basis)	31.5kA,r.m.s
Percentage D.C. Component of Rated S.C. Breaking Current	0.5
Rated Short-Circuit Making Current	80kA,Peak
Rated Duration of Short Time Current	4s
Rated Short-Time Withstand Current	31.5kA,r.m.s
Rated Peak Withstand Current	80kA,r.m.s
Maximum Contact Resistance at Minimum Closing Force	18Micro ohms
Rated Breaking Current of Single Capacitor Bank	630A,r.m.s
Rated Breaking Current of Back-to-Back Capacitor Bank	400A,r.m.s
Rated operating sequence	o-0.3s-co-180s-co
MECHANICAL DATA
Interrupter Weight(Approx.)	3.13kg
Moving Part Weight(Approx.)	1.28kg
Closing Force due to Bellow and Atmospheric	120±50N
Force Required to Hold Contacts open at Full Stroke	190±60N
MECHANICAL REQUIREMENTS(REF. VCB)
Contact Stroke	11±1 mm
Opening Speed(average of 75 contact gap)	1.1±0.2m/Sec
Maximum Overtravel During Opening	2mm
Maximun Rebound During Opening	2mm
Closing Speed(average of last 30% contact gap)	0.6±0.2m/Sec
Maximum Contact Bounse Duration(with maximum 2 bounces)	≤2ms
Rated Contact Compressive Force	3150±200N
Closing and Opening non-simultaneity of three-phase Contacts	≤2ms
LIFE (ESTIMATED)
Electrical Life at Rated Normal Current	50,000Operations
Electrical Life at Rated Short Circuit Current	100Operations
Mechanical Life	50,000Operations
Contact Erosion Limit	3mm
Shelf Life	20Years
Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-200 and JB 8738-2008.
Rated Characteristics to be given on request

Product Features and Advantages

The product perfectly meets the core requirements of reclosers, with outstanding advantages: It uses high-purity Cu-Cr alloy contacts, with a current interruption value of <3A, suppressing overvoltage; imported 316L stainless steel bellows seal, with an annual leakage rate of <0.5%, and a mechanical and electrical life of 50,000 cycles, ensuring long-term maintenance-free operation; the high-strength ceramic housing provides excellent insulation and withstands extreme environments such as wide temperature ranges and high altitudes, with an IP67 protection rating; each unit undergoes 15 comprehensive inspections, features QR code traceability, and a modular design for easy replacement, resulting in a failure rate of less than 0.005%.

Product Application Scenarios

The 11KV Vacuum Interrupter for Reclosers has a wide range of applications, suitable for urban and rural power distribution networks, new energy grid connection points, and industrial parks. It can be used with intelligent ring network cabinets and other equipment, performing tasks such as fault reclosing and load switching. It has no SF₆ emissions, complying with environmental protection directives, and is suitable for "Belt and Road" overseas projects.

Frequently Asked Questions

1. Customization Services: Supports multiple standards, provides OEM/ODM services, and conventional models are shipped within 15-30 days, compatible with mainstream recloser equipment.

2. Quality Assurance: Core components are selected from well-known brands, with full-process quality control and QR code traceability.

3. Warranty and After-Sales Service: 10-year limited warranty, vacuum decay does not exceed 20%, and global service centers provide 7x24 hour response.

4. Installation Notes: Moisture-proof and shock-proof packaging during transportation; installation must comply with relevant requirements; pressure and mechanical tests are recommended after installation.

Brand Strength Guarantee

Sunway Hanguang, as a seasoned manufacturer, has become a reliable global supplier with advanced production, rigorous quality control, and comprehensive services. The factory has sufficient automated production capacity, and its products are exported worldwide, consistently providing customers with cost-effective 11KV Vacuum Interrupters for Reclosers and related services.

11KV Vacuum Interrupter For Recloser