VSD2-12 indoor high voltage vacuum circuit breaker for rated voltage of 12kV three-phase AC 50 / 60Hz indoor HV switchgear is VSD series vacuum circuit breaker is a new generation high voltage vacuum circuit breaker, shendall electric R & D team in absorbs the domestic and foreign products of the same type of advanced technology, in order to adapt to the Chinese market and elaborate design, independent research and development of high performance high voltage vacuum circuit breaker, for global customers to provide the most safe, reliable, economy, environmental protection and the humanization of transmission and distribution products.
VSD2-12 indoor high voltage vacuum circuit breaker in full compliance with the GB, DL and IEC new standard and can be widely used in energy, infrastructure, industrial, commercial, and civil architecture field in medium voltage distribution system protection and control, switching a variety of different kinds of load and frequent operation, the implementation of power plant, power grids, telecommunications, aerospace, metallurgy, mining, manufacturing and other sectors and urban infrastructure such as the one used in the field of the airport, subway, docks and residential areas, distribution.
Product characteristics
- complete specifications, complete series, meet the needs of the user with a variety of current and the degree of opening;
- using the first class high performance vacuum arc extinguishing chamber to ensure that the circuit breaker has a unique open performance;
- excellent sealed pole, can work stably in the gel and filth in the harsh environment;
- excellent mechanical characteristics of the circuit breaker, the new design of the missile operating mechanism, to ensure that the circuit breaker has 30000 times the mechanical life;
- the full range of 1.1 times temperature rise test, the maximum temperature rise margin to ensure that the circuit breaker is stable and reliable operation;
- use of powerful computer simulation design technology to maximize the optimization of electromagnetic field distribution, and obtain the best electromagnetic characteristics and reliability;
- reliable grounding system, complete mechanical and electrical interlocking, ensuring equipment and personnel safety;
- a new generation of engineering plastic insulation and solid sealed pole, a comprehensive way to go beyond the traditional insulation, and establish a new vacuum circuit breaker;
Spare parts - highly modular and standardized, convenient on-site maintenance work, reduce operating costs;
- alternative domestic mainstream vacuum circuit breakers, compatible with all kinds of medium voltage cabinet type size and interface requirements;
- New humanized panel design, create a new trend of vacuum circuit breaker, circuit breaker more beautiful appearance.
According to the latest aesthetic idea specially designed, streamlined panels will be cold steel frame closed, as household appliances generally follow the humanized design; at the same time, the two plug and storage handle into the upper part of the plastic panel, set up to turn over board, can be flexible to use, easy to use.

Cases: VSD2-12E/1250-31.5W said VSD series of hand car interpositional VSD type indoor high voltage vacuum circuit breaker, the rated voltage of 12kV, rated current of 1250A, rated short-circuit breaking current at 31.5KA, a loop with epoxy resin solid seal polar column.
Note: the specific order options please fill in the "order", if there are other special requirements, please contact with the manufacturer, and in order to specify the order.
Product features:
Execution standard
VSD2-12 indoor high voltage vacuum circuit breaker with the latest version of the following standards
- 62271-100:2008 IEC "high voltage switchgear and control equipment - Part 100th: high voltage AC circuit breakers"
- 62271-1:2011 IEC "high voltage switchgear and control equipment - part first: common technical requirements"
- GB1984-2014 "high voltage AC circuit breaker"
- GB/T11022-2011 "common technical requirements for high voltage switchgear and control equipment
- 3.6kV "GB3906-2006 ~ 40.5kV AC metal enclosed switchgear and control equipment"
- DL/T402-2007 "high voltage AC circuit breaker order technical condition"
- 12kV "DL/T403-2000 ~ 40.5kV high voltage vacuum circuit breaker order technical conditions"
- DL/T593-2006 "common technical requirements for high voltage switchgear and control equipment
- 3855-2008 JB/T "high voltage AC vacuum circuit breaker"
- JB/T11203-2011 "high voltage AC vacuum switch equipment with solid sealed pole"
Type test
VSD2-12 indoor high voltage vacuum circuit breaker by the following test, to ensure that the
Any normal installation can be stable and reliable operation
Routine test
- loop resistance measurement
- temperature rise test
- mechanical testing and environmental testing
- insulation test (power frequency withstand voltage, lightning impulse withstand voltage)
- opening test and closing test of rated short circuit current
- fault opening test of the different phase of the earth fault
- breaking and closing test
Current switching test - charging cable
- rated short-time and peak withstand current test
- gel and contamination test
- vacuum circuit breaker X - ray test
Special test
- capacitor switching test
Condition of use
Ambient temperature
- normal use of the highest temperature: +40 C;
- normal use of the lowest temperature: -15 degrees C; (allowing the storage and transport at -30 C)
- normal use of the highest daily average temperature: +35 C

Earthquake intensity
Seismic intensity is not more than 8 degrees
Altitude
No more than 1000 meters above sea level
Ambient humidity (25 C)
The daily average relative humidity: less than 95%
The monthly average relative humidity: less than 90%
On average, the saturated vapor pressure is less than 2.2x10-3: MPa
- month average saturated steam pressure: MPa = 1.8x10-3
- should pay attention to prevent condensation in high humidity environment
Installation place
- the use of water, no drop of water, no flammable and explosive dangerous, no chemical corrosive gas, no serious pollution and no violent vibration;
- the ambient air is not significantly affected by dust, smoke, corrosive and / or combustible gas, vapor, or salt spray;