1.General Introduction

KYN28-12 withdrawable metal-clad switchgear (hereinatter called KYN28 switchgear or switchgear), is acomplete set of power distribution device with 3-10ky three-phase AC 50Hz single bus and single bus section system. It is mainly used in power transformation and distribution in power plants, substations, industrial, airports, water plants, mining, metal, containerlarmy navy ships and extra-large data center to control,protect and monitor the line.

KYN28 switchgear is a medium mounted, miniaturized, metal-clad and air insulated switchgear.According to the different use of truck, it can be divided into:circuit breaker truck, contactor truck, load switch truckisolation truck, PT truck, metering truck, fuse truck, lower PT truck, lower lightning arrester truck, etc. The main switch can be equipped with vacuum circuit breakers from domestic and foreign manufacturers such as VS1(VTD6),VT19, VD4, VB2, 3AE and HVX. t is a power distribution device with superior performance.

2.Type and Designation

3.Service Conditions

Altitude: Not more than 1000m

Ambient temperature: Max :+40℃,Min:-15℃(stored transportation temp. min.: -25℃)

Relative humidity: Daily average is not more than 95%,

Monthly average is not more than 90%

Apply for condensation and Grade ll polluted environment

The seismic intensity shall not exceed 8 degrees

Note: lf the customer deviates from the normal conditions of use, please confirm with the manufacturer.

4.Technology Parameter

Note: When rated currentis 4000A and above, it shall be forced air cooling.