Product Name: Kyn28 -12kv metal-Clad Switchgear Model NO.: KYN28 Current: AC Structure: Withdrawable Installation: Fixed Voltage Level: Medium Voltage Shell Material: Aluminum Alloy Certification: ISO9001 Trademark: powertech Transport Package: Wooden Packing Specification: IEC, GB Origin: Zhejiang, China HS Code: 8537209000 Product Description GeneralKYN28 indoor metal-clad withdrawable switchgear(hereafter short as switchgear) is a complete power distribution device for 3.6~24KV, 3 phase AC 50Hz, single bus sectionalized system. It is main used for power transmission of middle/small generators in power plants, power receiving, transmission for substations in power distribution and power system of factories, mines and enterprises, and starting of large high-voltage motor, etc, so as to control, protect and monitor the system. The switchgear meets IEC298, GB3906-91. In addition to be used with domestic VS1 vacuum circuit breaker, it can be used with VD4 from ABB, 3AH5 from Siemens domestic ZN65A, and VB2 from GE, etc. It is truly a power distribution deviece with good performance.In order to meet the requirement for wall mounting and front-end maintenance, the switchgear is equipped with a special current transformer, so that the operator can maintain and inspect it in front of the cubicle.Service environmenta. Ambient temperature:Maximum temperature:+40ºC Minimum temperature: -15ºCb. Ambient humidity: Daily average RH no more than 95%;Monthly average RH no more than 90%c. Altitude no higher than 2500m;d. The air around without any pollution of duty, smoke, ercode or flammable air, steam or salty fog;Main technical specificationsNo.ItemUnitParameters1Rated VoltageKV122Rated FrequencyHz50/603Rated CurrentA630 1250 1600 2000 2500 31504Branch busbar rated currentA630 1250 1600 2000 2500 31505Main busbar rated currentA630 1250 1600 2000 2500 315061min power frequency withstand voltageDryKV3850/604860/65Wet7Lightening impulse withstand voltageKV7595/1258Rated Short-time Withstand Current (4s)KA20/25/31.5/409Rated Short Circuit Breaking Current(Peak)KA40/50/63/80/10010Protection typeIP4X for housing