33kV Vacuum Interrupter For Generator VCB

Model: TD545K

Sunway Hanguang, a professional manufacturer with over fifty years of experience in the electrical field, has created the 33kV Vacuum Interrupter For Generator VCB, a core arc extinguishing unit specifically customized for generator circuit breakers (GCB). This product is compatible with 50/60Hz AC systems, features a vacuum degree of ≤1.33×10⁻³Pa, achieving arc-free interruption and zero re-ignition. Backed by rigorous standards and authoritative certifications, it has become a trusted core component supplier in the global power generation sector. Its production base is located in China, utilizing a smart factory for efficient mass production and strict quality control, providing reliable protection for various power generation systems.

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Product Description

The 33kV Vacuum Interrupter For Generator VCB is a core arc extinguishing unit customized by Sunway Hanguang for GCBs, carrying out critical functions of fault isolation and short-circuit protection in power generation systems. It is compatible with 50/60Hz AC systems and can effectively handle frequent operations and short-circuit impacts in large-scale power generation scenarios.

Sunway Hanguang has been deeply involved in the electrical field for over fifty years, utilizing imported equipment to build intelligent production lines and holding 35 core patents. Its products have passed authoritative certifications such as KEMA and CESI, with over 120,000 units installed globally, earning recognition from renowned companies such as Huaneng, GE, and Siemens, showcasing the strength of this Chinese manufacturer.

Product Parameters

ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS
Rated frequency	50/60Hz
Rated Voltage	40.5kV,r.m.s
Rated short-time power-frequency withstand voltage (1 min)	95kV,r.m.s
Rated lightning impulse withstand voltage	185kV,Peak
Rated Current	2000A
Circuit resistance at lowest rated contact force	≤20Micro ohms
Rated short-circuit breaking Current	25kA,r.m.s
Rated short-time withstand current	25kA,r.m.s
Rated duration of short-circuit	4s
Rated peak withstand current	63kA,r.m.s
Rated short-circuit making Current	63kA,r.m.s
Max. Dc component	40%
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-0.3(0.5)s-CO-180s-CO
MECHANICAL DATA
Interrupter Weight(Approx.)	8.23kg
Weight of movable parts	3.74kg
Closing force due to bellow and atmosphere	170±40N
Force required to hold contacts open at full stroke	320±50N
MECHANICAL REQUIREMENTS(REF. VCB)
Clearance between open contacts	18±2mm
Average opening speed(average of first 75% of contact gap)	1.6±0.3m/Sec
Average closing speed(average of last 30% of contact gap)	1.3±0.2m/Sec
Rated added external contact final force	2500±200N
Contact bouncing duration at closing operation	≤2ms
Closing and Opening non-simultaneity of three-phase Contacts	≤2ms
Maximum Rebound during opening	≤2mm
LIFE
Electrical Life at Rated Normal Current	20,000 Operations
Electrical Life at Rated Short Circuit Current	50 Operations
Mechanical Life	30,000 Operations
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 Core Advantages

The 33kV Vacuum Interrupter For Generator VCB stands out in performance and reliability, fully meeting the high standards required for large-scale power generation scenarios:

- Excellent Arc Extinguishing Protection: Uses high-purity Cu-Cr alloy contacts, with a current interruption value of <3A, protecting generator insulation; imported bellows combined with helium mass spectrometry leak detection, with an annual leakage rate of <0.5%, ensuring stable operation.

- Superior Environmental Resistance: Integrated design of ceramic shell and metal flange, with a power frequency withstand voltage of 95kV/1min, lightning impulse withstand voltage of 185kV, and resistance to a wide temperature range of -40℃~+85℃ and an altitude of 4000 meters, adapting to complex working conditions. - Ultimate Quality Control: Each unit undergoes 15 comprehensive inspections, with QR code traceability, resulting in a failure rate of <0.01%, demonstrating Sunway Hanguang's intelligent factory's sophisticated manufacturing capabilities.

- High Adaptability and Easy Maintenance: Compatible with mainstream GCB platforms, tool-free replacement, and supports intelligent monitoring expansion; 40 global technical centers provide 7x24 hour service.

Product Application Scenarios

The 33kV Vacuum Interrupter for Generator VCB has a wide range of applications, suitable for thermal power plants, gas turbine power plants, nuclear power plants, offshore wind power substations, etc. It can also be used in large-scale energy storage, marine power systems, and data center emergency power supplies, providing reliable protection for power generation systems.

Frequently Asked Questions

1. Customization Services: Supports customization of current, operating frequency, and intelligent monitoring modules, providing a full range of OEM/ODM services, demonstrating the manufacturer's flexible adaptation capabilities.

2. Quality Assurance: Core components are carefully selected from renowned brands, with full-process quality control and traceable electronic records, ensuring stable and reliable quality.

3. Warranty and After-Sales Service: 10-year limited warranty, with global service points providing on-site diagnosis, training, and spare parts supply, ensuring timely response.

4. Installation Notes: Moisture-proof and shock-resistant packaging during transportation, standard installation procedures, and testing of withstand voltage and mechanical characteristics after installation before commissioning.

Brand Commitment

As a leading Chinese manufacturer, Sunway Hanguang adheres to the philosophy of "quality first, customer foremost," and is committed to providing high-quality 33kV Vacuum Interrupters for Generator VCB to global customers. We continuously improve our products and services, striving to be the preferred supplier of core components in the global power generation field, contributing to global energy security and development.

33kV Vacuum Interrupter For Generator VCB