Product Introduction

KYN28A-12 (GZS1) indoor metal-clad withdrawn type switchgear is designed to be complete distribution equipment with three-phase AC single busbar and single busbar section system having a rated voltage of 3.6~12kV 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-sized HV motors. In addition, the switchgear is provided controlling, protection and monitoring functions. the switchgear confirms to IEC 298, Chinese GB 3906 and other standards. The switchgear itself owns five preventions functions. The switchgear selects VS serials vacuum circuit breakers manufactured by us, thus recognized as power distribution equipment with excellent performance.

Item	Unit	Data
Rated voltage	kv	3.6,7.2,12
1min PFWV	kv	42
LIW Voltage	kv	75
Rated frequency	Hz	50
Bus bar reated current	A	630,1250,1600,2000,2500,3150,4000,5000,
Rated short circuit breaking Current	KA	20,25,31.5,40,50
4S short time withstand Current	kA	16,20,25,31.5,40,50
Rated peak withstand Current(peak)		40,50,63,80,100,125
Degree of protection		IP4X