Product introduction of VK12-12P (G) fixed pole column indoor medium voltage vacuum circuit breaker
VK12-12P (G) fixed pole column indoor medium voltage vacuum circuit breaker. The main design concept is: the main circuit adopts fixed sealing pole to improve the environmental adaptability and insulation reliability of the circuit breaker, improve the mechanism design, prolong the mechanical life and improve the mechanical reliability. Reliable mechanical and electrical properties, extend the mechanical and electrical life, and make the maintenance free circuit breaker possible.
VK12-12P (G) circuit breaker is an indoor switchgear element with rated voltage of 12kV and AC 50Hz, which is applicable to areas within 4500 meters above sea level. The product conforms to GB, DL, IEC and other relevant domestic and international standards, and its performance reaches the level of M2-E2-C2.
VK12-12P (G) circuit breaker is equipped with a special propulsion mechanism to form a handcart type unit. The circuit breaker is equipped with reliable interlocking unit, which can meet the user's "five prevention" protection function.
Product information of vk12-12p (g) fixed pole column indoor medium voltage vacuum circuit breaker
1. Meet the use requirements in areas with an altitude of less than 4500m
Increase the clear distance of air to the ground, and adopt arc extinguishing chamber with high insulation performance to meet the requirements of high altitude areas.
2. The main circuit adopts fixed sealing pole
The main circuit of the circuit breaker adopts APG process molding technology, and uses high-performance epoxy resin to seal the vacuum arc extinguishing chamber and the upper and lower outgoing lines together, so that the vacuum arc extinguishing chamber is free from the influence of dust, moisture and dirt, and improves the environmental adaptability and insulation reliability.
3. The circuit breaker is M2 level circuit breaker
The superior mechanism performance can be used in frequent operation occasions. The circuit breaker meets the requirements of M2. The mechanical life of the circuit breaker is up to 20000 times. (the data comes from the inspection (Experiment) report of the national electrical product quality supervision and Inspection Center (no:19K2235-S))
4. The circuit breaker is E2 level circuit breaker
The circuit breaker passed all type tests in Shanghai high voltage apparatus testing center and met the requirements of E2 circuit breaker. The circuit breaker broke the short-circuit current of full capacity for 30 times.
5. The circuit breaker is a C2 level circuit breaker
During the capacitive current breaking process of the circuit breaker, it has a very low probability of re striking, which meets the requirements of class C2 circuit breaker
6. The circuit breaker mechanism has excellent corrosion resistance
The mechanism parts adopt advanced surface treatment technology, which makes the parts have stronger corrosion resistance and higher mechanical stability.
7. Adopt buffer with excellent buffer performance
The specially designed buffer reduces the opening overshoot and opening rebound of the circuit breaker, and improves the mechanical life of the circuit breaker.
8. Insulated tie rod made of BMC material
The insulating material of the insulating rod is BMC, which not only meets the requirements of mechanical strength, but also has a large creepage distance along the surface, which improves the insulation performance of the circuit breaker.
9. The circuit breaker can be used at low temperature -25 ℃
The circuit breaker adopts special low-temperature grease and buffer that can work at low temperature, so that the circuit breaker can be used at low temperature -25 ℃.
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