VS1-12GD Indoor High Voltage Three-station Vacuum Circuit Breaker

Name: China Customized VS1-12GD Indoor High Voltage Three-station Vacuum Circuit Breaker Factory
Brand: Shaanxi Huadian Electric Co., Ltd.
SKU: 229308913

Rated Voltage: 12kV
Number of Stations: Three
Circuit Breaker Type: Vacuum
Rated Current: [Specific value depending on the model, e.g., 630A or 1250A]
Short Circuit Current: [Specific value depending on the model, e.g., 20kA or 31.5kA]

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Product Introduction

The VS1-12GD indoor high-voltage three-station vacuum circuit breaker stands as an exemplar of superior electrical and mechanical engineering, boasting an unwaveringly reliable and stable mechanism that guarantees an extended service life. Distinguished by its adoption of fixed pole technology in the main circuit, this breaker achieves heightened environmental adaptability and insulation reliability, setting the stage for a virtually maintenance-free operation.

ZN63AVS1- 12M indoor permanent magnet vacuum circuit breaker

Beyond its mechanical prowess, this circuit breaker showcases impeccable electronic performance, showcasing both prolonged mechanical and electronic life. This remarkable combination positions it as a versatile solution for power systems spanning 3.6kV to 12kV. Its utility extends across various applications, serving as a linchpin in power grid equipment and as the control unit within protection boxes for the intricate power designs of industrial and mining enterprises. Designed to handle diverse loads under different conditions, it excels in scenarios requiring frequent operation and resilience against repeated short-circuit interruptions.

Incorporating a perfect blend of mechanical and electrical interlocking devices, this product achieves an unparalleled level of operational stability and reliability, ensuring the safety of both operators and equipment, and safeguarding the effective utilization of electricity.

Key features include:

Solid Sealing Pole Technology: Employing cutting-edge sealing pole technology to enhance performance.

Modular Design: Featuring a frame structure that seamlessly integrates high-performance, miniaturized high-voltage electrical components, including isolating switches, vacuum circuit breakers, grounding switches, sensors, interlocking mechanisms, and operating mechanisms.

Adapted Cabinet Size: Configured with a cabinet size of (480×1000×1800)mm, ensuring optimal spatial utilization.

Visible Fracture Rotary Isolating Switch: Equipped with a rotary isolating switch that displays a visible fracture after opening for enhanced safety awareness.

Mechanical Interlock System: Enforcing a mandatory mechanical interlock between the isolating switch, circuit breaker, and grounding switch to prevent misoperations.

Modular Operating Mechanism: Featuring a modular operating mechanism that allows for independent replacement or overhaul, offering excellent interchangeability. Operable manually or through AC and DC energy storage for remote control capabilities.

Reliable Interlocking Structure: Designed with a reliable interlocking structure for the cabinet door and grounding switch, ensuring operator safety and system integrity.

Main Technical Parameters：

Name	Unit	Data
Rated voltage	kV	12
(1min)rated short-term power frequency withstand voltage:interphase/fracture		42/48
Rated lightning impulse withstand voltage (peak value):interphase/break		75/85
Secondary circuit power frequency withstand voltage (1min)	V	2000
Rated frequency	Hz	50
Rated current	A	6301250
Rated short-circuit breaking current	kA	20	25	31.5
Rated peak withstand current	kA	50	63	80
Rated short-circuit closing current	kA	50	63	80
4s rated short-term withstand current	kA	20	25	31.5
Rated short-term withstand current duration	S	4
Rated breaking current of single/back-to-back capacitor bank	A	630/400
Rated capacitor bank closing inrush current	kA	12.5(The frequency is not more than 1000Hz)
Rated short-circuit current breaking times	time	30
Mechanical life (isolating switch/circuit breaker/earthing switch)		3000/10000/3000
Cumulative allowable wear thickness of moving and stationary contacts	mm	3
Rated closing operating voltage	V	AC24/48/110/220DC24/48/110/220
Rated opening operation voltage
Rated voltage of energy storage motor	V	AC24/48/110/220DC24/48/110/220
Rated power of energy storage motor	W	70
Energy storage time	5	≤15
Contact spacing	mm	9±1
Overstroke		3.5±1
Closing bounce time of contacts	ms	≤5
Three-phase opening and closing have different phases		≤2
Opening time (rated voltage)		≤40
Closing time(rated voltage		≤60
Average opening speed (contact just points~6mm)	m/s	0.9~1.3
Average closing speed (6mm~just contact)		0.5~1.1
Contact opening rebound amplitude	mm	≤2
Closing contact pressure of contacts	N	2400±200(20-25kA) 3100+200(31.5kA)
Rated operation sequence		O-0.3s-CO-180s-CO

product-1323-1795

Company Profile

Company Profile

Shaanxi Huadian Electric Co., Ltd. is located in Baoji High-tech Development Zone, Shaanxi Province. It is a modern high-tech enterprise specializing in the production of vacuum circuit breakers integrating R&D, manufacturing and sales.

The company has a professional R&D team and new product laboratory, and maintains a good cooperative relationship with domestic scientific research institutions and colleges and universities in the research and development of new products.

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