KYN28-12 metal-armored shifting switch cabinet is suitable for three-phase AC 50Hz,12kV single busbar section power system, it also control, protection and monitoring for the circuit, meet the requirements of IEC60298, GB3906, DL404 and other standards, and has perfect "five preventions" function.This product is the current 10kV system mainstream cabinet type, widely used in all kinds of industries.
KYN28-12 indoor metalclad drawout switchgear is designed to be complete distribution equipment with three-phase A.C. single busbar and single busbar section system having a rated voltage of 3~10kV and rated frequency of 50Hz.The switchgear is mainly employed in receiving and distribution of power energy from the network as well as starting of large-size HV motors.In addition,the switchgear is provided with controlling,protection and monitoring functions.The switchgear conforms to IEC 298,GB 3906 and other standards.The switchgear itself owns ve prevention functions such as prevention of misoperation of circuit breakers,prevention of pushing or pulling truck with load,prevention of closing earth switch under voltage,prevention of supplying power when earth switch is at the earth position and prevention of entering the electrical separation zone by accident.thus recognized as power distribution equipment with excellent performance.
Our company is one of the first domestic enterprises to produce this type of cabinet. More than 20 years of production experience. After years of upgrading and development, the product has the highest rated current up to 4000A and passed the 1s, 40kA arc test.
Techniacl Paramenters of Switchgear
| Item | Technical Parameter |
|---|---|
| Rated voltage | 12kV |
| Rated frequency | 50Hz |
| Rated current for main bus | 630A~4000A |
| Rated insulation level | |
| 1 min power frequency withstand voltage (effect value) | Phase to phase, phase to earth: 42kV; Primary isolating fracture: 48kV |
| Ligntning impulse withstand voltage | Phase to phase, phase to earth: 75kV; Primary isolating fracture: 85kV |
| Auxiliary control circuit 1 min power frequency withstand voltage | 2000V |
| Rated short circuit breaking current | 25kA, 31.5kA, 40kA |
| Rated short circuit closing current(peak value) | 63kA, 80kA, 100kA |
| Rated short time withstand current(4s) | 25kA, 31.5kA, 40kA |
| Rated peak value withstand current | 63kA, 80kA, 100kA |
| Rated voltage of control circuit | AC110V, 220V；DC110V, 220V |
| External dimensions (W*H*D) | 800(650,1000)×1500(1350,1660)×2300 mm |
| Protection class | |
| When circuit breaker chamber door is closed | IP4X |
| When circuit breaker chamber door is opened | IP2X |
Test Report
