10kV 12kV Medium Voltage Handcart Type VCB With Insulating Tube With Conductive Parts

VSG type indoor high-voltage vacuum circuit breaker is suitable for switching various loads of different natures and frequent operations in power systems with three-phase AC 50Hz and rated voltage of 7.2kV-40.5kV. And the protection and control of electrical equipment in substations. It can be equipped with KYN28A and other mid-mounted handcart-type switchgear, and can also be equipped with XGN fixed switchgear.

VSG type indoor high-voltage vacuum circuit breaker complies with the national standard GB1984 “AC high-voltage circuit breaker”, JB/T3855 “3.6 ~ 40.5kV indoor AC high-voltage vacuum circuit breaker” and IEC60056 “high-voltage AC circuit breaker” standards. Meet the “10-35kV Indoor High Voltage Vacuum Circuit Breaker Ordering Technical Conditions”.it has the advantages of small size, light weight, suitable for frequent operation and interrupting without maintenance, and is more popularly used in the 3kV-40.5kV distribution network.

The VSG mechanism uses a cam (in the core module of the mechanism) to drive the spindle directly (in the frame spindle module) to reduce the transmission link and improve the transmission efficiency (no hinge connection). Reduce the energy input of the product and increase the service life of the product. Install the main circuit module, that is, complete the basic configuration of the vacuum circuit breaker. Then install the chassis car module, the contact arm, the contact, and the insulating sleeve to complete the configuration of the hand-cranked circuit breaker.

Technical features

1.The first generation of the builtin type handcart in China with independent intellectual rights .It features a matured technology and high price/performance ratio .

2.The key parts adopt nickel-phosphorous alloy plating with perfect wear resistance and corrosion resistance .

3.The key parts are made by ourselves to ensure the products to meet the designing requirement of design

4.The cylindrical composite insulation main circuit features small volume,free of maintenance and few service.

Key Technical Parameters:

· Rated Insulation Level: 75kV

· Rated Lightning Impulse Withstand Voltage: 42kV

· Rated Current: 630A, 1250A, 1600A, 2000A, 2500A, 3150A, 5000A

· Rated Short-Circuit Breaking Current: 25kA, 31.5kA, 40kA

· Rated Short-Circuit Making Current (Peak): 63kA, 80kA, 100kA

· Rated Short-Circuit Duration: 4 seconds

· Rated Operating Sequence: O-0.3s-CO-180s-CO or O-180s-CO-180s-CO (40kA)

· Rated Single/Back-to-Back Capacitor Bank Breaking Current: 630A/400A

· Number of Operations at Rated Short-Circuit Breaking Current: 30 times

· Closing Time: 30-70ms

· Opening Time: 20-50ms

· Mechanical Life: 30,000 operations

· Rated Energy Storage and Operating Voltage: AC220/110V, DC220/100V

· Contact Gap: 11±1mm

· Overtravel of Contact: 3.5±0.5mm

· Average Closing Speed: 0.5-0.8m/s

· Average Opening Speed: 0.9-1.2m/s

· Contact Bounce Time at Closing: ≤2ms

· Synchronization Time for Three-Phase Opening and Closing: ≤2ms

· Main Circuit Resistance: ≤50μΩ (630A), ≤45μΩ (1250A), ≤35μΩ (1600-2000A), ≤25μΩ (2500A and above)

Product Features:

· Wide Applicability: The Modular Operating Mechanisms VCB VSG-12 indoor high-voltage vacuum circuit breaker is suitable for a variety of environments and is particularly well-suited for applications requiring frequent operations and high reliability in power systems.

· Modular Design: The operating mechanism uses a modular design, providing the convenience of quick replacements and assembly.

· Safety and Reliability: It boasts outstanding electrical performance, reliably protecting and controlling power equipment.

· Long Mechanical Life: With a high mechanical life, it can withstand extended periods of use.

Advanced Design: Features like contact gap and contact overtravel ensure high performance and reliability.

Basic Info.

Technical parameter

Dimensional drawing:

Operating Environment:

· Ambient Temperature: Not exceeding +40°C, not less than -15°C (storage at -30°C is not allowed).

· Altitude: Not exceeding 1000m.

· Relative Humidity: Daily average not exceeding 95%, monthly average not exceeding 90%. Daily average saturation vapor pressure not exceeding 22×10-3MPa, monthly average not exceeding 18×10-3MPa.

· Seismic Intensity: Not exceeding level 8.

· Application Sites: Suitable for use in places without fire, explosions, severe pollution, chemical corrosion, and severe vibration.

Ordering instruction

1. VCB full type, main technical specifications, phase distance and quantity

2. Type and specification of service voltage

3. The name and quantity of spare parts

FAQ

Q1: Are you a manufacturer or a trader?

A1: We are a leading professional manufacturer.

Q2: How long is your delivery cycle?

A2: It depends on your product requirements and quantity. Generally, 5 to 10 working days are required for delivery

Q3: What is your after-sales service?

A3: We can answer users' questions solve their problems 24 hours a day, and provide comprehensive technical support for all our products promptly.

Q4: How do you solve quality problems?

A4: Please provide detailed photos of the quality problems. Our technical and quality inspection departments will analyze them. We will give a satisfactory solution within 2 days.

Q5: Do you accept customized services?

A5: We provide OEM/ODM services and can print your logo on the products. Our professional technical and quotation team can provide satisfactory projects according to your drawings and parameters.

Factory

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