【Summary】
KYN28-12 AC metal armoured removable high-voltage switchgear rated voltage 3-12 kV three-phase AC 50Hz, single bus and single bus subsection system complete set of distribution devices. It can be used in power plants, small and medium-sized generators, industrial and mining enterprises and institutions, as well as secondary substations of electric power system, distribution power and large-scale high-voltage motor start-up, to achieve the purpose of control, protection and detection. The switch cabinet can meet the requirements of GB3906, IEC298 and other standards. It also has five preventive functions, such as preventing misoperation of circuit breakers, preventing loaded handcarts, preventing live switch from closing grounding switches, preventing grounding switches from feeding electricity when grounding and preventing incorrect live isolation. Switchgear can be equipped with VD4 vacuum circuit breaker of ABB company and Cn can be equipped with domestic VS1 vacuum circuit breaker, which is a kind of power distribution device with superior performance.
KYN28 middle high-voltage switchgear is used for power generation, transmission, distribution, power conversion and consumption in the power system to play the role of on-off, control or protection, voltage level in 12 kV electrical products, mainly including high-voltage circuit breakers, grounding switches, transformers and so on.
KYN28 cabinet body is composed of cabinet frame and pull-out handcart. All kinds of handcarts are driven and withdrawn by worm rocking. Its operation is light and flexible. The whole handcart is small in size and convenient for inspection and maintenance. The test position and working position of the handcart in the cabinet are equipped in place to ensure the reliability of the mechanical interlocking. According to the different uses of handcarts, they can be divided into: transfer vehicle, PT vehicle, fuse vehicle, metering vehicle, isolation vehicle, PT vehicle, lightning arrester vehicle and grounding vehicle.

【Product Characteristics】
The cabinet structure is made of aluminium-zinc coated sheet bolted by CNC machine tool after processing by multiple bending process. All operations are carried out under closed cabinet doors.
High level of protection can prevent the invasion of debris and pests.
Simple and effective "five preventive" locking to prevent misoperation;
It can be equipped with VS1 and VD4 vacuum circuit breakers.
The replacement of circuit breaker is simple and the handcart has good interchangeability.
Reliable wall installation of cabinet body and maintenance in front of cabinet can reduce occupied area.
Cable room has ample space and can connect multiple cables.
Heaters can be installed in circuit breaker chamber and cable chamber respectively to prevent condensation and corrosion.

Technology reference data

Vacuum circuit breaker mainreference data