Kyn28a-12 indoor AC metal armored central switchgear. It is applicable to three-phase AC power system with rated voltage of 12kV and rated frequency of 50Hz. It is used to receive and distribute electric energy and control, protect and monitor the circuit.
Compliance with standards:
GB3906-2006 3.640.5kv AC metal enclosed switchgear and control equipment
Gb11022-89 general technical conditions for high voltage switchgear
Ec298 (1990) AC metal enclosed switchgear and control equipment with rated voltage above 1kV and below 50kV
Dl404-97 technical conditions for ordering indoor AC high voltage switchgear
For more information about For more information about KYN28A-12 indoor AC metal armored central switchgear, please contact us.
K -----Metal enclosed armor type / / Y ----- Shifting Type (Handcar Medium Position Type) / / N ----- Indoor / / 28A ----- Design serial number // 12 -----Rated voltage //□ ----- A circuit scheme // □ ----- 1.Environmental characteristics code name 2.TH-used for hot and humid belt 3.HA-which is used for the dry tropics 4.G-which is used at high altitude
|Circuit breaker rated current||A||630、1250、1600、2000、2500、3150|
|Switchgear rated current||A||630、1250、1600、2000、2500、3150|
|Rated short-time tolerance current (4S)||kA||16,20,25,31.5,40,50|
|Rated peak tolerance current (peak)||kA||40,50,63,80,100,125|
|Rated short-circuit open-break current||kA||16,20,25,31.5,40,50|
|Rated short-circuit-off current (peak)||kA||40,50,63,80,100,125|
|Rated insulation level||1min power frequency withstand voltage||kV||24、32、42|
|Lightning impact withstand voltage||kV||40、60、75|
|levels of protection||The enclosure is IP4X, IP2X when the compartment and circuit breakerchamber doors are opened|
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Factory direct selling//Non-standard customization//Convenient installation// Fine technology//Careful materials//Flexible operation
The switchgear is designed according to the armored metal enclosed switchgear in gb3906-91. The whole is composed of two parts: cabinet body and middle mounted withdrawable parts (i.e. handcart). The cabinet body is divided into four separate compartments. The protection grade of the shell is IP4X. When the doors of each small room and circuit breaker room are opened, the grade is IP2X. It has overhead incoming and outgoing lines, cable incoming and outgoing lines and other functional schemes, which form a complete set of power distribution system devices after arrangement and combination. The switchgear can be installed, debugged and maintained from the front, so it can be back-to-back, double arranged and installed against the wall, which improves the safety and flexibility of the switchgear and reduces the floor area.
The handcart frame is made of thin steel plate processed by CNC machine tool and riveted and welded. According to the purpose, the handcart can be divided into circuit breaker handcart, voltage transformer handcart, partition handcart, metering handcart, etc. handcarts of the same specification can be easily interchanged. The handcart has isolation position, test position and working position in the cabinet, and each position is equipped with positioning device to ensure that the handcart cannot move freely when it is in the above position, and the interlock must be released when it is moved.
B bus room:
The bus is led from one switchgear to another and fixed through branch bus and static contact box. The flat branch bus is connected to the static contact box and the main bus through bolts without any other clamps or insulators. In case of special needs of users and projects, the connecting bolts on the bus bar can be encapsulated with insulation and end caps. When the bus passes through the partition of switch cabinet, it shall be fixed with bus bushing. In case of internal fault arc, it can limit the spread of the accident to the adjacent cabinet and ensure the mechanical strength of the bus.
C cable room:
Current transformer, grounding switch, lightning arrester and cable can be installed in the, and slotted detachable aluminum plate can be prepared at the bottom to ensure convenient construction on site.
D relay meter room:
The relay instrument room is used to install various relays, instruments, signal indicators, operating switches and other components. In addition, according to the user's requirements, a small bus room can be added at the top of the instrument room, and sixteen control small buses can be set.
Pressure relief device:
A pressure relief device is set above the handcart room, bus room and cable room. When an internal fault arc occurs in the circuit breaker or main bus and cable room, with the occurrence of the arc, the internal air pressure in the switchgear rises. After reaching a certain pressure, the pressure relief metal plate of the top device will be automatically opened to release pressure and exhaust gas, so as to ensure the safety of operators and switchgear
The connection between the middle door and the cabinet body adopts the latch structure and is equipped with a lifting mechanism, which makes it more convenient to open the middle door. When the middle door is closed, the connection strength between the middle door and the cabinet body is better, which enhances the ability to effectively resist the internal arcing fault.
Port terminal #1
Power plant #2
Steel works #3
Petrochemical Enterprises #4
>>NC laser opening standardized bending
>>Carefully selected materials, beautiful appearance, firm and durable
>>The box size / opening / thickness / color / component matching can be customized
◆ ambient air temperature: maximum temperature + 40 ° C. The minimum temperature is 15 ° C.
◆ relative humidity: daily average relative humidity: < 95%; The daily average water vapor pressure shall not exceed 22kpa; Monthly average relative humidity: < 90%; The monthly average water vapor force shall not exceed 18kpa; Altitude: below 2000m.
◇ seismic intensity: no more than 8 degrees
◆ the surrounding air shall not be obviously polluted by corrosive or combustible gas, water vapor, etc.
◆ places without violent vibration.
◆ in case of use beyond the normal conditions specified in GB3906, it shall be negotiated between the user and the company
Lawrence Electric Co., Ltd. is a high-tech enterprise focusing on power transmission and distribution products, providing customers with one-stop service of power transmission and distribution products.
It mainly produces and sells lightning arrester, insulator, fuse, isolation / load switch, SF6 / vacuum circuit breaker, power supply fittings, optical cable fittings, switch cabinet and other transmission and distribution products. The company has production bases and sales centers in Jiangxi, Zhejiang, Uganda, Tanzania and other places.
Our products have operated safely in the power supply systems of more than 20 countries and regions around the world for more than 10 years. They are also qualified suppliers of China State Grid and China Southern Power Grid. At present, they have gained a good reputation in the field of power system in the world.
We have received high-quality product recommendation letters from power supply companies in Kenya, Uganda, Tanzania, Zambia, Guinea, Ghana, Togo, Mozambique, Nepal, Guyana, Myanmar and other countries and regions.
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