VS1-40.5 Indoor High-Voltage Vacuum Circuit Breaker – Insulating Cylinder
Category:
Product Description
Product Overview
VS1-40.5 Indoor High-Voltage Vacuum Circuit Breaker is designed for indoor switchgear in 50 Hz, 40.5 kV AC power systems, serving as a protection and control unit for grid equipment and power equipment in industrial and mining enterprises. It is suitable for frequent operations under rated working current, as well as for applications involving multiple short-circuit current interruptions.
Terms of Use
1. The maximum ambient air temperature shall not exceed 40°C, and the minimum shall not be lower than -15°C.
2. Wind speed not exceeding 35 m/s;
3. Altitude not exceeding 1000 m;
4. The earthquake intensity shall not exceed 8 degrees;
5. Environmental Humidity: The monthly average relative humidity shall not exceed 90%; the daily average relative humidity shall not exceed 95%.
6. The installation location should be free from flammable, explosive, chemically corrosive substances and frequent, severe vibrations.
7. Pollution Degree: Level IV.
Product Standards
GB1984-2014 High-Voltage AC Circuit Breakers
GB3309-1989 Mechanical Testing of High-Voltage Switchgear at Ambient Temperature
JB/T3855-2008 High-Voltage AC Vacuum Circuit Breaker
JB/T 8738–2008 Vacuum Interrupters for High-Voltage AC Switchgear
GB/T 7354-2003 Partial Discharge Measurement
GB/T 11022–2011 Common Technical Requirements for High-Voltage Switchgear and Control Equipment
GB/T16927.1-2011 High-Voltage Test Techniques: General Definitions and Test Requirements
DL/T402-2016 Technical Specifications for Ordering AC High-Voltage Circuit Breakers
DL/T403-2000 Technical Specifications for Ordering 12kV–40.5kV High-Voltage Vacuum Circuit Breakers
Main Features
1. Reliable Modular Spring Operating Mechanism: The spring operating mechanism features a vertically arranged design, offering both manual and electric energy storage capabilities. The compact overall dimensions of the unit ensure excellent structural rigidity for the circuit breaker, while maintaining consistent operational performance at all times.
2. The electrical circuit adopts a sleeve-type structure: The vacuum arc extinguishing chamber of the circuit breaker’s primary electrical circuit is housed within a sealed insulating sleeve. The insulating sleeve is made from epoxy resin, a material with reliable electromechanical properties, and is formed using advanced APG technology. This insulating sleeve not only provides support and mounting functionality but also serves as insulation between phases and to ground.
3. Standard Make-and-Break Function Modules: The modular design of the spring mechanism is another distinctive feature of the VS1 indoor vacuum circuit breaker. The spring operating mechanism comprises two major function modules—make and break—and boasts advantages such as convenient maintenance, quick replacement, and short outage times for repair. In addition, since the make-and-break function modules used as spare parts have all been specially lubricated with grease and properly adjusted, and they enjoy an exceptionally long shelf life, there is no need to readjust the entire circuit breaker’s operating mechanism after replacing the make-and-break modules—without altering the circuit breaker’s dynamic characteristics, thereby significantly reducing the workload associated with maintenance and repairs.
4. Excellent hand-cart interchangeability and adaptability; installation dimensions are compatible with series products such as ZN85 and VD4.
5. Strong breaking capacity and long service life.
Technical Parameters of Vacuum Circuit Breakers
|
Serial Number |
Name |
Unit |
Data |
|
1 |
Rated Voltage |
kV |
40.5 |
|
2 |
1-minute power frequency withstand voltage (RMS) |
kV |
95 |
|
3 |
Rated Lightning Impulse Withstand Voltage (Peak) |
kV |
185 |
|
4 |
Rated Frequency |
Hz |
50 |
|
5 |
Rated current |
A |
630 1250 1600 2000 2500 |
|
6 |
Rated short-time withstand current |
kA |
20 25 31.5 |
|
7 |
Rated Peak Withstand Current |
kA |
50 63 80 |
|
8 |
Rated short-circuit breaking current |
kA |
20 25 31.5 |
|
9 |
Rated Short-Circuit Making Current (Peak) |
kA |
50 63 80 |
|
10 |
Rated Operating Sequence |
|
0-0.3s-C0-180s-C0 |
|
11 |
Rated short-circuit duration |
S |
4 |
|
12 |
Break time |
ms |
<80 |
|
13 |
Rated Capacitor Bank Interrupting Current |
A |
630 |
|
14 |
Rated Short-Circuit Breaking Current Number of Operations |
Next |
30 |
|
15 |
Mechanical life |
Next |
10000 |
|
16 |
Rated Operating Voltage |
V |
AC/DC110 AC/DC220 |
|
17 |
External dimensions (length, width, height) |
mm |
1246 1700 905 |
|
18 |
Weight |
kg |
466 |
Technical Parameters of the Mechanical Characteristics After Circuit Breaker Assembly and Adjustment
|
Serial Number |
Name |
Unit |
Data |
|
1 |
Contact opening distance |
mm |
22±2 |
|
2 |
Contact travel (measuring the relative positions of the contacts during closing and opening of the spring) |
mm |
7.5 ± 1.5 |
|
3 |
Average Closing Speed |
m/s |
0.5–1.0 |
|
4 |
Average tripping speed |
m/s |
1.4–2.0 |
|
5 |
Contact closing bounce time |
ms |
≤3 |
|
6 |
Closing time |
ms |
50–100 |
|
7 |
Trip time |
ms |
35–60 |
|
8 |
Trip bounce |
mm |
≤3 |
|
9 |
Three-phase contactor closing and opening synchronization |
ms |
≤2 |
|
10 |
Closing spring energy storage time |
s |
≤15 |
|
11 |
Resistance of Each Phase Conductive Circuit |
microohm |
≤50 |
|
12 |
Center-to-center spacing |
mm |
300 |
Ordering Instructions
Users should specify when placing an order.
a. Circuit breaker model, name, and order quantity;
b. The circuit breaker’s rated voltage, rated current, and rated short-circuit breaking current;
c. Rated operating voltage;
d. Names and quantities of spare parts and components;
e. If users have any other special requirements, they may specify them when placing an order.
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VS1-40.5 Indoor High-Voltage Vacuum Circuit Breaker – Insulating Cylinder
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East of the 22nd Avenue and south of Fengda Road, Zhengzhou Economic and Technological Development Zone
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