High Voltage Electrical Switchgear

Type: Indoor Metal-Clad Withdrawable AC Switchgear Model: KYN28-12 Params: Rated Voltage：12kV Rated Current：630 – 4000A Rated Frequency：50Hz Rated Short-Circuit Breaking Current：20–50kA Rated Short-Circuit Making Current：50–125kA Rated 4s Short-Time Thermal Withstand Current：20/25/31.5/40/50kA Rated Peak Withstand Current：50/63/80kA 1min Power Frequency Withstand Voltage：Phase-to-Phase & Phase-to-Earth: 42kV；Isolation Break: 48kV Lightning Impulse Withstand Voltage：Phase-to-Phase & Phase-to-Earth: 75kV；Isolation Break: 85kV Protection Degree (IP Rating)：Enclosure: IP4X；With Circuit Breaker Door Open: IP2X Material: The main materials of KYN28-12 indoor AC metal-clad withdrawable switchgear are aluzinc coated steel sheet for cabinet enclosure, T2 silver-plated copper for conductive busbars, epoxy resin and SMC composite for insulating components, with stainless steel fasteners and rubber sealing strips. Applicable Industry: The KYN28-12 indoor AC metal-clad withdrawable switchgear is a complete power distribution system designed for three-phase AC 50Hz systems with a rated voltage of 3–12kV. It is suitable for single busbar and single busbar sectionalized systems