Type KYN28A-12(Z) (GZS1) armoured removable AC metal-enclosed switching equipment (hereinafter referred to as "switching Equipment ") suitable for three-phase AC 50Hz power systems. Used for receiving and distributing electrical energy and for controlling, protecting and monitoring circuits.

This product conforms to the standard: GB3906 "335kV AC metal closed switching Equipment", GB/T11022 "High voltage switching Equipment and control equipment standard common technical requirements", IEC60298 "Rated voltage 1kV and above ac gold is a closed switching equipment and control equipment".