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kyn27-12 intelligent armored shift type ac metal closed switchgear (10kv shift type switchgear, 10kv distribution network shift type switchgear)
kyn 27-12 intelligent armored removable ac metal enclosed switchgear
product model：kyn27-12(z)
kyn27-12(z) ; intelligent metal armored mid-shift switchgear, a three-phase ac 50hz high-voltage switchgear set, as a 10kv system to receive and distribute electric energy and circuit control, protection and monitoring, is guangdong "zhengchao" characteristic products, widely used in large and medium-sized power plants, substations, distribution areas and high-rise buildings and other power users. won the guangdong provincial key new product certificate.
the new generation of products absorb advanced technology at home and abroad, in line with the latest needs of users, the cabinet can be equipped with vs1/vd4 vacuum circuit breaker. the product has passed a full set of type tests according to the new standard and the most severe requirements. the large current cabinet has passed the internal fault arc test of 40ka/1s. under the premise of the same size of the cabinet, it has passed the temperature rise test of 1.1 times the rated current, realizing the important technological innovation of low temperature rise, high strength, arc resistance, high altitude and intelligence. product quality safety, stability, by the majority of users trust and praise.
◇ structure, performance and characteristics of switchgear ◇
kyn27-12(z) type cabinet is an assembled structure, circuit breaker room, bus room, cable room, instrument room, each room is separated by grounded metal plate, can effectively prevent the expansion of fault, safe and reliable operation.
circuit breaker room, bus room and cable room are equipped with independent pressure relief channels. when internal fault arc occurs, arc gas is released quickly through the pressure relief channel.
the switchgear has the mechanical "five prevention" locking and the perfect and reliable and unique interlocking device. it can also realize the mechanical and electrical double locking and interlocking function according to the specific requirements of users.
the circuit breaker of intelligent switchgear can be electrically propelled and pulled out, and the earthing knife can be electrically closed and divided.
the circuit breaker has a static contact valve, which automatically opens or closes in the process of pushing and pulling out, and the valve can be locked during maintenance; cable room is easy to install and maintain.
switch cabinet for the front maintenance type structure, installation against the wall debugging in the front, maintenance can enter the cabinet from the front.
the switchgear cabinet is equipped with explosion-proof observation windows, which can conveniently observe the mechanical indication of breaker breaking and closing, the position of hand car in the cabinet and the terminal connection of high voltage cable.
the cabinet is equipped with a perfect and reliable grounding system and grounding mark, the metal frame of primary components are grounded through the special grounding copper busbar, to ensure the safety of operation and maintenance.
normal service condition
altitude: no more than 1000m, if there are special requirements, up to 5000m;
ambient temperature: upper limit 40℃, lower limit -10℃ (allow storage and transportation at -30℃);
relative humidity: the daily average is not more than 95% , on the average no greater than 90% & have spent ;
seismic intensity: not more than 8 degrees;
installation site: no fire, explosion risk, serious pollution, chemical corrosion and violent vibration.
note: where beyond the above requirements, should be negotiated with the manufacturer to determine.
1. meet the requirements of temperature rise (1.1 times un), internal fault arc test (≥31.5ka/0.5s, maximum 40ka/1s) and condensation pollution of the "technical specifications" of china southern power grid and state power grid, have arc resistance and low temperature rise effect, and passed the type test and the sampling inspection of china southern power grid in 2016;
2. intelligent switchgear equipped with electric chassis car and electric ground switch has passed the life performance type test of electric operation machinery, and has been in safe and reliable operation in guangdong 110kv guangzhou jianfeng transformer, guizhou 110kv jinyang general transformer, qingping transformer and other projects；
3. through the type test at an altitude of 5000m, it has been widely used in guizhou, yunnan and other high-altitude areas with safe, stable and reliable operation.
4, 20 years has accumulated rich experience in research and development, design, manufacturing, kyn27-12 products continuous innovation and improvement, has won 18 utility model patent technology, is "high-tech products in guangdong province";
5. in 2016, the number of 10kv switchgear equipment supplied and operated by nanwang reached 16,545, ranking first, accounting for 12.01% of the total operating equipment of the whole network; the operation failure rate is the lowest, only 0.024 times / 100 units per year; in 2017, the number of 10kv switchgear equipment supplied and operated in nanwang reached 21,936, an increase of 5,391 compared with 2016.
6, optional zhengchao independent brand main primary and secondary electrical components and new technology and new materials, to achieve intelligent function upgrade:
◇ ★ main technical parameters ★ ◇
